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install psutil

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Meco Man 2023-09-05 22:33:56 -04:00
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pip

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BSD 3-Clause License
Copyright (c) 2009, Jay Loden, Dave Daeschler, Giampaolo Rodola
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the psutil authors nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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Metadata-Version: 2.1
Name: psutil
Version: 5.9.5
Summary: Cross-platform lib for process and system monitoring in Python.
Home-page: https://github.com/giampaolo/psutil
Author: Giampaolo Rodola
Author-email: g.rodola@gmail.com
License: BSD-3-Clause
Keywords: ps,top,kill,free,lsof,netstat,nice,tty,ionice,uptime,taskmgr,process,df,iotop,iostat,ifconfig,taskset,who,pidof,pmap,smem,pstree,monitoring,ulimit,prlimit,smem,performance,metrics,agent,observability
Platform: Platform Independent
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Console
Classifier: Environment :: Win32 (MS Windows)
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Information Technology
Classifier: Intended Audience :: System Administrators
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: MacOS :: MacOS X
Classifier: Operating System :: Microsoft :: Windows :: Windows 10
Classifier: Operating System :: Microsoft :: Windows :: Windows 7
Classifier: Operating System :: Microsoft :: Windows :: Windows 8
Classifier: Operating System :: Microsoft :: Windows :: Windows 8.1
Classifier: Operating System :: Microsoft :: Windows :: Windows Server 2003
Classifier: Operating System :: Microsoft :: Windows :: Windows Server 2008
Classifier: Operating System :: Microsoft :: Windows :: Windows Vista
Classifier: Operating System :: Microsoft
Classifier: Operating System :: OS Independent
Classifier: Operating System :: POSIX :: AIX
Classifier: Operating System :: POSIX :: BSD :: FreeBSD
Classifier: Operating System :: POSIX :: BSD :: NetBSD
Classifier: Operating System :: POSIX :: BSD :: OpenBSD
Classifier: Operating System :: POSIX :: BSD
Classifier: Operating System :: POSIX :: Linux
Classifier: Operating System :: POSIX :: SunOS/Solaris
Classifier: Operating System :: POSIX
Classifier: Programming Language :: C
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Programming Language :: Python
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: Software Development :: Libraries
Classifier: Topic :: System :: Benchmark
Classifier: Topic :: System :: Hardware :: Hardware Drivers
Classifier: Topic :: System :: Hardware
Classifier: Topic :: System :: Monitoring
Classifier: Topic :: System :: Networking :: Monitoring :: Hardware Watchdog
Classifier: Topic :: System :: Networking :: Monitoring
Classifier: Topic :: System :: Networking
Classifier: Topic :: System :: Operating System
Classifier: Topic :: System :: Systems Administration
Classifier: Topic :: Utilities
Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
Description-Content-Type: text/x-rst
Provides-Extra: test
Requires-Dist: ipaddress ; (python_version < "3.0") and extra == 'test'
Requires-Dist: mock ; (python_version < "3.0") and extra == 'test'
Requires-Dist: enum34 ; (python_version <= "3.4") and extra == 'test'
Requires-Dist: pywin32 ; (sys_platform == "win32") and extra == 'test'
Requires-Dist: wmi ; (sys_platform == "win32") and extra == 'test'
| |downloads| |stars| |forks| |contributors| |coverage|
| |version| |py-versions| |packages| |license|
| |github-actions-wheels| |github-actions-bsd| |appveyor| |doc| |twitter| |tidelift|
.. |downloads| image:: https://img.shields.io/pypi/dm/psutil.svg
:target: https://pepy.tech/project/psutil
:alt: Downloads
.. |stars| image:: https://img.shields.io/github/stars/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/stargazers
:alt: Github stars
.. |forks| image:: https://img.shields.io/github/forks/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/network/members
:alt: Github forks
.. |contributors| image:: https://img.shields.io/github/contributors/giampaolo/psutil.svg
:target: https://github.com/giampaolo/psutil/graphs/contributors
:alt: Contributors
.. |github-actions-wheels| image:: https://img.shields.io/github/actions/workflow/status/giampaolo/psutil/.github/workflows/build.yml?label=Linux%2C%20macOS%2C%20Windows
:target: https://github.com/giampaolo/psutil/actions?query=workflow%3Abuild
:alt: Linux, macOS, Windows
.. |github-actions-bsd| image:: https://img.shields.io/github/actions/workflow/status/giampaolo/psutil/.github/workflows/bsd.yml?label=FreeBSD,%20NetBSD,%20OpenBSD
:target: https://github.com/giampaolo/psutil/actions?query=workflow%3Absd-tests
:alt: FreeBSD, NetBSD, OpenBSD
.. |appveyor| image:: https://img.shields.io/appveyor/build/giampaolo/psutil/master.svg?maxAge=3600&label=Windows%20(py2)
:target: https://ci.appveyor.com/project/giampaolo/psutil
:alt: Windows (Appveyor)
.. |coverage| image:: https://coveralls.io/repos/github/giampaolo/psutil/badge.svg?branch=master
:target: https://coveralls.io/github/giampaolo/psutil?branch=master
:alt: Test coverage (coverall.io)
.. |doc| image:: https://readthedocs.org/projects/psutil/badge/?version=latest
:target: https://psutil.readthedocs.io/en/latest/
:alt: Documentation Status
.. |version| image:: https://img.shields.io/pypi/v/psutil.svg?label=pypi
:target: https://pypi.org/project/psutil
:alt: Latest version
.. |py-versions| image:: https://img.shields.io/pypi/pyversions/psutil.svg
:alt: Supported Python versions
.. |packages| image:: https://repology.org/badge/tiny-repos/python:psutil.svg
:target: https://repology.org/metapackage/python:psutil/versions
:alt: Binary packages
.. |license| image:: https://img.shields.io/pypi/l/psutil.svg
:target: https://github.com/giampaolo/psutil/blob/master/LICENSE
:alt: License
.. |twitter| image:: https://img.shields.io/twitter/follow/grodola.svg?label=follow&style=flat&logo=twitter&logoColor=4FADFF
:target: https://twitter.com/grodola
:alt: Twitter Follow
.. |tidelift| image:: https://tidelift.com/badges/github/giampaolo/psutil?style=flat
:target: https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=readme
:alt: Tidelift
-----
Quick links
===========
- `Home page <https://github.com/giampaolo/psutil>`_
- `Install <https://github.com/giampaolo/psutil/blob/master/INSTALL.rst>`_
- `Documentation <http://psutil.readthedocs.io>`_
- `Download <https://pypi.org/project/psutil/#files>`_
- `Forum <http://groups.google.com/group/psutil/topics>`_
- `StackOverflow <https://stackoverflow.com/questions/tagged/psutil>`_
- `Blog <https://gmpy.dev/tags/psutil>`_
- `What's new <https://github.com/giampaolo/psutil/blob/master/HISTORY.rst>`_
Summary
=======
psutil (process and system utilities) is a cross-platform library for
retrieving information on **running processes** and **system utilization**
(CPU, memory, disks, network, sensors) in Python.
It is useful mainly for **system monitoring**, **profiling and limiting process
resources** and **management of running processes**.
It implements many functionalities offered by classic UNIX command line tools
such as *ps, top, iotop, lsof, netstat, ifconfig, free* and others.
psutil currently supports the following platforms:
- **Linux**
- **Windows**
- **macOS**
- **FreeBSD, OpenBSD**, **NetBSD**
- **Sun Solaris**
- **AIX**
Supported Python versions are **2.7**, **3.4+** and
`PyPy <http://pypy.org/>`__.
Funding
=======
While psutil is free software and will always be, the project would benefit
immensely from some funding.
Keeping up with bug reports and maintenance has become hardly sustainable for
me alone in terms of time.
If you're a company that's making significant use of psutil you can consider
becoming a sponsor via `GitHub Sponsors <https://github.com/sponsors/giampaolo>`__,
`Open Collective <https://opencollective.com/psutil>`__ or
`PayPal <https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=A9ZS7PKKRM3S8>`__
and have your logo displayed in here and psutil `doc <https://psutil.readthedocs.io>`__.
Sponsors
========
.. image:: https://github.com/giampaolo/psutil/raw/master/docs/_static/tidelift-logo.png
:width: 200
:alt: Alternative text
`Add your logo <https://github.com/sponsors/giampaolo>`__.
Example usages
==============
This represents pretty much the whole psutil API.
CPU
---
.. code-block:: python
>>> import psutil
>>>
>>> psutil.cpu_times()
scputimes(user=3961.46, nice=169.729, system=2150.659, idle=16900.540, iowait=629.59, irq=0.0, softirq=19.42, steal=0.0, guest=0, nice=0.0)
>>>
>>> for x in range(3):
... psutil.cpu_percent(interval=1)
...
4.0
5.9
3.8
>>>
>>> for x in range(3):
... psutil.cpu_percent(interval=1, percpu=True)
...
[4.0, 6.9, 3.7, 9.2]
[7.0, 8.5, 2.4, 2.1]
[1.2, 9.0, 9.9, 7.2]
>>>
>>> for x in range(3):
... psutil.cpu_times_percent(interval=1, percpu=False)
...
scputimes(user=1.5, nice=0.0, system=0.5, idle=96.5, iowait=1.5, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
scputimes(user=1.0, nice=0.0, system=0.0, idle=99.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
scputimes(user=2.0, nice=0.0, system=0.0, idle=98.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
>>>
>>> psutil.cpu_count()
4
>>> psutil.cpu_count(logical=False)
2
>>>
>>> psutil.cpu_stats()
scpustats(ctx_switches=20455687, interrupts=6598984, soft_interrupts=2134212, syscalls=0)
>>>
>>> psutil.cpu_freq()
scpufreq(current=931.42925, min=800.0, max=3500.0)
>>>
>>> psutil.getloadavg() # also on Windows (emulated)
(3.14, 3.89, 4.67)
Memory
------
.. code-block:: python
>>> psutil.virtual_memory()
svmem(total=10367352832, available=6472179712, percent=37.6, used=8186245120, free=2181107712, active=4748992512, inactive=2758115328, buffers=790724608, cached=3500347392, shared=787554304)
>>> psutil.swap_memory()
sswap(total=2097147904, used=296128512, free=1801019392, percent=14.1, sin=304193536, sout=677842944)
>>>
Disks
-----
.. code-block:: python
>>> psutil.disk_partitions()
[sdiskpart(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,nosuid', maxfile=255, maxpath=4096),
sdiskpart(device='/dev/sda2', mountpoint='/home', fstype='ext', opts='rw', maxfile=255, maxpath=4096)]
>>>
>>> psutil.disk_usage('/')
sdiskusage(total=21378641920, used=4809781248, free=15482871808, percent=22.5)
>>>
>>> psutil.disk_io_counters(perdisk=False)
sdiskio(read_count=719566, write_count=1082197, read_bytes=18626220032, write_bytes=24081764352, read_time=5023392, write_time=63199568, read_merged_count=619166, write_merged_count=812396, busy_time=4523412)
>>>
Network
-------
.. code-block:: python
>>> psutil.net_io_counters(pernic=True)
{'eth0': netio(bytes_sent=485291293, bytes_recv=6004858642, packets_sent=3251564, packets_recv=4787798, errin=0, errout=0, dropin=0, dropout=0),
'lo': netio(bytes_sent=2838627, bytes_recv=2838627, packets_sent=30567, packets_recv=30567, errin=0, errout=0, dropin=0, dropout=0)}
>>>
>>> psutil.net_connections(kind='tcp')
[sconn(fd=115, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED', pid=1254),
sconn(fd=117, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING', pid=2987),
...]
>>>
>>> psutil.net_if_addrs()
{'lo': [snicaddr(family=<AddressFamily.AF_INET: 2>, address='127.0.0.1', netmask='255.0.0.0', broadcast='127.0.0.1', ptp=None),
snicaddr(family=<AddressFamily.AF_INET6: 10>, address='::1', netmask='ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff', broadcast=None, ptp=None),
snicaddr(family=<AddressFamily.AF_LINK: 17>, address='00:00:00:00:00:00', netmask=None, broadcast='00:00:00:00:00:00', ptp=None)],
'wlan0': [snicaddr(family=<AddressFamily.AF_INET: 2>, address='192.168.1.3', netmask='255.255.255.0', broadcast='192.168.1.255', ptp=None),
snicaddr(family=<AddressFamily.AF_INET6: 10>, address='fe80::c685:8ff:fe45:641%wlan0', netmask='ffff:ffff:ffff:ffff::', broadcast=None, ptp=None),
snicaddr(family=<AddressFamily.AF_LINK: 17>, address='c4:85:08:45:06:41', netmask=None, broadcast='ff:ff:ff:ff:ff:ff', ptp=None)]}
>>>
>>> psutil.net_if_stats()
{'lo': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_UNKNOWN: 0>, speed=0, mtu=65536, flags='up,loopback,running'),
'wlan0': snicstats(isup=True, duplex=<NicDuplex.NIC_DUPLEX_FULL: 2>, speed=100, mtu=1500, flags='up,broadcast,running,multicast')}
>>>
Sensors
-------
.. code-block:: python
>>> import psutil
>>> psutil.sensors_temperatures()
{'acpitz': [shwtemp(label='', current=47.0, high=103.0, critical=103.0)],
'asus': [shwtemp(label='', current=47.0, high=None, critical=None)],
'coretemp': [shwtemp(label='Physical id 0', current=52.0, high=100.0, critical=100.0),
shwtemp(label='Core 0', current=45.0, high=100.0, critical=100.0)]}
>>>
>>> psutil.sensors_fans()
{'asus': [sfan(label='cpu_fan', current=3200)]}
>>>
>>> psutil.sensors_battery()
sbattery(percent=93, secsleft=16628, power_plugged=False)
>>>
Other system info
-----------------
.. code-block:: python
>>> import psutil
>>> psutil.users()
[suser(name='giampaolo', terminal='pts/2', host='localhost', started=1340737536.0, pid=1352),
suser(name='giampaolo', terminal='pts/3', host='localhost', started=1340737792.0, pid=1788)]
>>>
>>> psutil.boot_time()
1365519115.0
>>>
Process management
------------------
.. code-block:: python
>>> import psutil
>>> psutil.pids()
[1, 2, 3, 4, 5, 6, 7, 46, 48, 50, 51, 178, 182, 222, 223, 224, 268, 1215,
1216, 1220, 1221, 1243, 1244, 1301, 1601, 2237, 2355, 2637, 2774, 3932,
4176, 4177, 4185, 4187, 4189, 4225, 4243, 4245, 4263, 4282, 4306, 4311,
4312, 4313, 4314, 4337, 4339, 4357, 4358, 4363, 4383, 4395, 4408, 4433,
4443, 4445, 4446, 5167, 5234, 5235, 5252, 5318, 5424, 5644, 6987, 7054,
7055, 7071]
>>>
>>> p = psutil.Process(7055)
>>> p
psutil.Process(pid=7055, name='python3', status='running', started='09:04:44')
>>> p.name()
'python3'
>>> p.exe()
'/usr/bin/python3'
>>> p.cwd()
'/home/giampaolo'
>>> p.cmdline()
['/usr/bin/python', 'main.py']
>>>
>>> p.pid
7055
>>> p.ppid()
7054
>>> p.children(recursive=True)
[psutil.Process(pid=29835, name='python3', status='sleeping', started='11:45:38'),
psutil.Process(pid=29836, name='python3', status='waking', started='11:43:39')]
>>>
>>> p.parent()
psutil.Process(pid=4699, name='bash', status='sleeping', started='09:06:44')
>>> p.parents()
[psutil.Process(pid=4699, name='bash', started='09:06:44'),
psutil.Process(pid=4689, name='gnome-terminal-server', status='sleeping', started='0:06:44'),
psutil.Process(pid=1, name='systemd', status='sleeping', started='05:56:55')]
>>>
>>> p.status()
'running'
>>> p.username()
'giampaolo'
>>> p.create_time()
1267551141.5019531
>>> p.terminal()
'/dev/pts/0'
>>>
>>> p.uids()
puids(real=1000, effective=1000, saved=1000)
>>> p.gids()
pgids(real=1000, effective=1000, saved=1000)
>>>
>>> p.cpu_times()
pcputimes(user=1.02, system=0.31, children_user=0.32, children_system=0.1, iowait=0.0)
>>> p.cpu_percent(interval=1.0)
12.1
>>> p.cpu_affinity()
[0, 1, 2, 3]
>>> p.cpu_affinity([0, 1]) # set
>>> p.cpu_num()
1
>>>
>>> p.memory_info()
pmem(rss=10915840, vms=67608576, shared=3313664, text=2310144, lib=0, data=7262208, dirty=0)
>>> p.memory_full_info() # "real" USS memory usage (Linux, macOS, Win only)
pfullmem(rss=10199040, vms=52133888, shared=3887104, text=2867200, lib=0, data=5967872, dirty=0, uss=6545408, pss=6872064, swap=0)
>>> p.memory_percent()
0.7823
>>> p.memory_maps()
[pmmap_grouped(path='/lib/x8664-linux-gnu/libutil-2.15.so', rss=32768, size=2125824, pss=32768, shared_clean=0, shared_dirty=0, private_clean=20480, private_dirty=12288, referenced=32768, anonymous=12288, swap=0),
pmmap_grouped(path='/lib/x8664-linux-gnu/libc-2.15.so', rss=3821568, size=3842048, pss=3821568, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=3821568, referenced=3575808, anonymous=3821568, swap=0),
pmmap_grouped(path='[heap]', rss=32768, size=139264, pss=32768, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=32768, referenced=32768, anonymous=32768, swap=0),
pmmap_grouped(path='[stack]', rss=2465792, size=2494464, pss=2465792, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=2465792, referenced=2277376, anonymous=2465792, swap=0),
...]
>>>
>>> p.io_counters()
pio(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632, read_chars=456232, write_chars=517543)
>>>
>>> p.open_files()
[popenfile(path='/home/giampaolo/monit.py', fd=3, position=0, mode='r', flags=32768),
popenfile(path='/var/log/monit.log', fd=4, position=235542, mode='a', flags=33793)]
>>>
>>> p.connections(kind='tcp')
[pconn(fd=115, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED'),
pconn(fd=117, family=<AddressFamily.AF_INET: 2>, type=<SocketType.SOCK_STREAM: 1>, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING')]
>>>
>>> p.num_threads()
4
>>> p.num_fds()
8
>>> p.threads()
[pthread(id=5234, user_time=22.5, system_time=9.2891),
pthread(id=5237, user_time=0.0707, system_time=1.1)]
>>>
>>> p.num_ctx_switches()
pctxsw(voluntary=78, involuntary=19)
>>>
>>> p.nice()
0
>>> p.nice(10) # set
>>>
>>> p.ionice(psutil.IOPRIO_CLASS_IDLE) # IO priority (Win and Linux only)
>>> p.ionice()
pionice(ioclass=<IOPriority.IOPRIO_CLASS_IDLE: 3>, value=0)
>>>
>>> p.rlimit(psutil.RLIMIT_NOFILE, (5, 5)) # set resource limits (Linux only)
>>> p.rlimit(psutil.RLIMIT_NOFILE)
(5, 5)
>>>
>>> p.environ()
{'LC_PAPER': 'it_IT.UTF-8', 'SHELL': '/bin/bash', 'GREP_OPTIONS': '--color=auto',
'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg',
...}
>>>
>>> p.as_dict()
{'status': 'running', 'num_ctx_switches': pctxsw(voluntary=63, involuntary=1), 'pid': 5457, ...}
>>> p.is_running()
True
>>> p.suspend()
>>> p.resume()
>>>
>>> p.terminate()
>>> p.kill()
>>> p.wait(timeout=3)
<Exitcode.EX_OK: 0>
>>>
>>> psutil.test()
USER PID %CPU %MEM VSZ RSS TTY START TIME COMMAND
root 1 0.0 0.0 24584 2240 Jun17 00:00 init
root 2 0.0 0.0 0 0 Jun17 00:00 kthreadd
...
giampaolo 31475 0.0 0.0 20760 3024 /dev/pts/0 Jun19 00:00 python2.4
giampaolo 31721 0.0 2.2 773060 181896 00:04 10:30 chrome
root 31763 0.0 0.0 0 0 00:05 00:00 kworker/0:1
>>>
Further process APIs
--------------------
.. code-block:: python
>>> import psutil
>>> for proc in psutil.process_iter(['pid', 'name']):
... print(proc.info)
...
{'pid': 1, 'name': 'systemd'}
{'pid': 2, 'name': 'kthreadd'}
{'pid': 3, 'name': 'ksoftirqd/0'}
...
>>>
>>> psutil.pid_exists(3)
True
>>>
>>> def on_terminate(proc):
... print("process {} terminated".format(proc))
...
>>> # waits for multiple processes to terminate
>>> gone, alive = psutil.wait_procs(procs_list, timeout=3, callback=on_terminate)
>>>
Windows services
----------------
.. code-block:: python
>>> list(psutil.win_service_iter())
[<WindowsService(name='AeLookupSvc', display_name='Application Experience') at 38850096>,
<WindowsService(name='ALG', display_name='Application Layer Gateway Service') at 38850128>,
<WindowsService(name='APNMCP', display_name='Ask Update Service') at 38850160>,
<WindowsService(name='AppIDSvc', display_name='Application Identity') at 38850192>,
...]
>>> s = psutil.win_service_get('alg')
>>> s.as_dict()
{'binpath': 'C:\\Windows\\System32\\alg.exe',
'description': 'Provides support for 3rd party protocol plug-ins for Internet Connection Sharing',
'display_name': 'Application Layer Gateway Service',
'name': 'alg',
'pid': None,
'start_type': 'manual',
'status': 'stopped',
'username': 'NT AUTHORITY\\LocalService'}
Projects using psutil
=====================
Here's some I find particularly interesting:
- https://github.com/google/grr
- https://github.com/facebook/osquery/
- https://github.com/nicolargo/glances
- https://github.com/Jahaja/psdash
- https://github.com/ajenti/ajenti
- https://github.com/home-assistant/home-assistant/
Portings
========
- Go: https://github.com/shirou/gopsutil
- C: https://github.com/hamon-in/cpslib
- Rust: https://github.com/rust-psutil/rust-psutil
- Nim: https://github.com/johnscillieri/psutil-nim

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Common objects shared by __init__.py and _ps*.py modules."""
# Note: this module is imported by setup.py so it should not import
# psutil or third-party modules.
from __future__ import division
from __future__ import print_function
import collections
import contextlib
import errno
import functools
import os
import socket
import stat
import sys
import threading
import warnings
from collections import namedtuple
from socket import AF_INET
from socket import SOCK_DGRAM
from socket import SOCK_STREAM
try:
from socket import AF_INET6
except ImportError:
AF_INET6 = None
try:
from socket import AF_UNIX
except ImportError:
AF_UNIX = None
if sys.version_info >= (3, 4):
import enum
else:
enum = None
# can't take it from _common.py as this script is imported by setup.py
PY3 = sys.version_info[0] == 3
PSUTIL_DEBUG = bool(os.getenv('PSUTIL_DEBUG'))
_DEFAULT = object()
__all__ = [
# OS constants
'FREEBSD', 'BSD', 'LINUX', 'NETBSD', 'OPENBSD', 'MACOS', 'OSX', 'POSIX',
'SUNOS', 'WINDOWS',
# connection constants
'CONN_CLOSE', 'CONN_CLOSE_WAIT', 'CONN_CLOSING', 'CONN_ESTABLISHED',
'CONN_FIN_WAIT1', 'CONN_FIN_WAIT2', 'CONN_LAST_ACK', 'CONN_LISTEN',
'CONN_NONE', 'CONN_SYN_RECV', 'CONN_SYN_SENT', 'CONN_TIME_WAIT',
# net constants
'NIC_DUPLEX_FULL', 'NIC_DUPLEX_HALF', 'NIC_DUPLEX_UNKNOWN',
# process status constants
'STATUS_DEAD', 'STATUS_DISK_SLEEP', 'STATUS_IDLE', 'STATUS_LOCKED',
'STATUS_RUNNING', 'STATUS_SLEEPING', 'STATUS_STOPPED', 'STATUS_SUSPENDED',
'STATUS_TRACING_STOP', 'STATUS_WAITING', 'STATUS_WAKE_KILL',
'STATUS_WAKING', 'STATUS_ZOMBIE', 'STATUS_PARKED',
# other constants
'ENCODING', 'ENCODING_ERRS', 'AF_INET6',
# named tuples
'pconn', 'pcputimes', 'pctxsw', 'pgids', 'pio', 'pionice', 'popenfile',
'pthread', 'puids', 'sconn', 'scpustats', 'sdiskio', 'sdiskpart',
'sdiskusage', 'snetio', 'snicaddr', 'snicstats', 'sswap', 'suser',
# utility functions
'conn_tmap', 'deprecated_method', 'isfile_strict', 'memoize',
'parse_environ_block', 'path_exists_strict', 'usage_percent',
'supports_ipv6', 'sockfam_to_enum', 'socktype_to_enum', "wrap_numbers",
'open_text', 'open_binary', 'cat', 'bcat',
'bytes2human', 'conn_to_ntuple', 'debug',
# shell utils
'hilite', 'term_supports_colors', 'print_color',
]
# ===================================================================
# --- OS constants
# ===================================================================
POSIX = os.name == "posix"
WINDOWS = os.name == "nt"
LINUX = sys.platform.startswith("linux")
MACOS = sys.platform.startswith("darwin")
OSX = MACOS # deprecated alias
FREEBSD = sys.platform.startswith(("freebsd", "midnightbsd"))
OPENBSD = sys.platform.startswith("openbsd")
NETBSD = sys.platform.startswith("netbsd")
BSD = FREEBSD or OPENBSD or NETBSD
SUNOS = sys.platform.startswith(("sunos", "solaris"))
AIX = sys.platform.startswith("aix")
# ===================================================================
# --- API constants
# ===================================================================
# Process.status()
STATUS_RUNNING = "running"
STATUS_SLEEPING = "sleeping"
STATUS_DISK_SLEEP = "disk-sleep"
STATUS_STOPPED = "stopped"
STATUS_TRACING_STOP = "tracing-stop"
STATUS_ZOMBIE = "zombie"
STATUS_DEAD = "dead"
STATUS_WAKE_KILL = "wake-kill"
STATUS_WAKING = "waking"
STATUS_IDLE = "idle" # Linux, macOS, FreeBSD
STATUS_LOCKED = "locked" # FreeBSD
STATUS_WAITING = "waiting" # FreeBSD
STATUS_SUSPENDED = "suspended" # NetBSD
STATUS_PARKED = "parked" # Linux
# Process.connections() and psutil.net_connections()
CONN_ESTABLISHED = "ESTABLISHED"
CONN_SYN_SENT = "SYN_SENT"
CONN_SYN_RECV = "SYN_RECV"
CONN_FIN_WAIT1 = "FIN_WAIT1"
CONN_FIN_WAIT2 = "FIN_WAIT2"
CONN_TIME_WAIT = "TIME_WAIT"
CONN_CLOSE = "CLOSE"
CONN_CLOSE_WAIT = "CLOSE_WAIT"
CONN_LAST_ACK = "LAST_ACK"
CONN_LISTEN = "LISTEN"
CONN_CLOSING = "CLOSING"
CONN_NONE = "NONE"
# net_if_stats()
if enum is None:
NIC_DUPLEX_FULL = 2
NIC_DUPLEX_HALF = 1
NIC_DUPLEX_UNKNOWN = 0
else:
class NicDuplex(enum.IntEnum):
NIC_DUPLEX_FULL = 2
NIC_DUPLEX_HALF = 1
NIC_DUPLEX_UNKNOWN = 0
globals().update(NicDuplex.__members__)
# sensors_battery()
if enum is None:
POWER_TIME_UNKNOWN = -1
POWER_TIME_UNLIMITED = -2
else:
class BatteryTime(enum.IntEnum):
POWER_TIME_UNKNOWN = -1
POWER_TIME_UNLIMITED = -2
globals().update(BatteryTime.__members__)
# --- others
ENCODING = sys.getfilesystemencoding()
if not PY3:
ENCODING_ERRS = "replace"
else:
try:
ENCODING_ERRS = sys.getfilesystemencodeerrors() # py 3.6
except AttributeError:
ENCODING_ERRS = "surrogateescape" if POSIX else "replace"
# ===================================================================
# --- namedtuples
# ===================================================================
# --- for system functions
# psutil.swap_memory()
sswap = namedtuple('sswap', ['total', 'used', 'free', 'percent', 'sin',
'sout'])
# psutil.disk_usage()
sdiskusage = namedtuple('sdiskusage', ['total', 'used', 'free', 'percent'])
# psutil.disk_io_counters()
sdiskio = namedtuple('sdiskio', ['read_count', 'write_count',
'read_bytes', 'write_bytes',
'read_time', 'write_time'])
# psutil.disk_partitions()
sdiskpart = namedtuple('sdiskpart', ['device', 'mountpoint', 'fstype', 'opts',
'maxfile', 'maxpath'])
# psutil.net_io_counters()
snetio = namedtuple('snetio', ['bytes_sent', 'bytes_recv',
'packets_sent', 'packets_recv',
'errin', 'errout',
'dropin', 'dropout'])
# psutil.users()
suser = namedtuple('suser', ['name', 'terminal', 'host', 'started', 'pid'])
# psutil.net_connections()
sconn = namedtuple('sconn', ['fd', 'family', 'type', 'laddr', 'raddr',
'status', 'pid'])
# psutil.net_if_addrs()
snicaddr = namedtuple('snicaddr',
['family', 'address', 'netmask', 'broadcast', 'ptp'])
# psutil.net_if_stats()
snicstats = namedtuple('snicstats',
['isup', 'duplex', 'speed', 'mtu', 'flags'])
# psutil.cpu_stats()
scpustats = namedtuple(
'scpustats', ['ctx_switches', 'interrupts', 'soft_interrupts', 'syscalls'])
# psutil.cpu_freq()
scpufreq = namedtuple('scpufreq', ['current', 'min', 'max'])
# psutil.sensors_temperatures()
shwtemp = namedtuple(
'shwtemp', ['label', 'current', 'high', 'critical'])
# psutil.sensors_battery()
sbattery = namedtuple('sbattery', ['percent', 'secsleft', 'power_plugged'])
# psutil.sensors_fans()
sfan = namedtuple('sfan', ['label', 'current'])
# --- for Process methods
# psutil.Process.cpu_times()
pcputimes = namedtuple('pcputimes',
['user', 'system', 'children_user', 'children_system'])
# psutil.Process.open_files()
popenfile = namedtuple('popenfile', ['path', 'fd'])
# psutil.Process.threads()
pthread = namedtuple('pthread', ['id', 'user_time', 'system_time'])
# psutil.Process.uids()
puids = namedtuple('puids', ['real', 'effective', 'saved'])
# psutil.Process.gids()
pgids = namedtuple('pgids', ['real', 'effective', 'saved'])
# psutil.Process.io_counters()
pio = namedtuple('pio', ['read_count', 'write_count',
'read_bytes', 'write_bytes'])
# psutil.Process.ionice()
pionice = namedtuple('pionice', ['ioclass', 'value'])
# psutil.Process.ctx_switches()
pctxsw = namedtuple('pctxsw', ['voluntary', 'involuntary'])
# psutil.Process.connections()
pconn = namedtuple('pconn', ['fd', 'family', 'type', 'laddr', 'raddr',
'status'])
# psutil.connections() and psutil.Process.connections()
addr = namedtuple('addr', ['ip', 'port'])
# ===================================================================
# --- Process.connections() 'kind' parameter mapping
# ===================================================================
conn_tmap = {
"all": ([AF_INET, AF_INET6, AF_UNIX], [SOCK_STREAM, SOCK_DGRAM]),
"tcp": ([AF_INET, AF_INET6], [SOCK_STREAM]),
"tcp4": ([AF_INET], [SOCK_STREAM]),
"udp": ([AF_INET, AF_INET6], [SOCK_DGRAM]),
"udp4": ([AF_INET], [SOCK_DGRAM]),
"inet": ([AF_INET, AF_INET6], [SOCK_STREAM, SOCK_DGRAM]),
"inet4": ([AF_INET], [SOCK_STREAM, SOCK_DGRAM]),
"inet6": ([AF_INET6], [SOCK_STREAM, SOCK_DGRAM]),
}
if AF_INET6 is not None:
conn_tmap.update({
"tcp6": ([AF_INET6], [SOCK_STREAM]),
"udp6": ([AF_INET6], [SOCK_DGRAM]),
})
if AF_UNIX is not None:
conn_tmap.update({
"unix": ([AF_UNIX], [SOCK_STREAM, SOCK_DGRAM]),
})
# =====================================================================
# --- Exceptions
# =====================================================================
class Error(Exception):
"""Base exception class. All other psutil exceptions inherit
from this one.
"""
__module__ = 'psutil'
def _infodict(self, attrs):
info = collections.OrderedDict()
for name in attrs:
value = getattr(self, name, None)
if value:
info[name] = value
elif name == "pid" and value == 0:
info[name] = value
return info
def __str__(self):
# invoked on `raise Error`
info = self._infodict(("pid", "ppid", "name"))
if info:
details = "(%s)" % ", ".join(
["%s=%r" % (k, v) for k, v in info.items()])
else:
details = None
return " ".join([x for x in (getattr(self, "msg", ""), details) if x])
def __repr__(self):
# invoked on `repr(Error)`
info = self._infodict(("pid", "ppid", "name", "seconds", "msg"))
details = ", ".join(["%s=%r" % (k, v) for k, v in info.items()])
return "psutil.%s(%s)" % (self.__class__.__name__, details)
class NoSuchProcess(Error):
"""Exception raised when a process with a certain PID doesn't
or no longer exists.
"""
__module__ = 'psutil'
def __init__(self, pid, name=None, msg=None):
Error.__init__(self)
self.pid = pid
self.name = name
self.msg = msg or "process no longer exists"
class ZombieProcess(NoSuchProcess):
"""Exception raised when querying a zombie process. This is
raised on macOS, BSD and Solaris only, and not always: depending
on the query the OS may be able to succeed anyway.
On Linux all zombie processes are querable (hence this is never
raised). Windows doesn't have zombie processes.
"""
__module__ = 'psutil'
def __init__(self, pid, name=None, ppid=None, msg=None):
NoSuchProcess.__init__(self, pid, name, msg)
self.ppid = ppid
self.msg = msg or "PID still exists but it's a zombie"
class AccessDenied(Error):
"""Exception raised when permission to perform an action is denied."""
__module__ = 'psutil'
def __init__(self, pid=None, name=None, msg=None):
Error.__init__(self)
self.pid = pid
self.name = name
self.msg = msg or ""
class TimeoutExpired(Error):
"""Raised on Process.wait(timeout) if timeout expires and process
is still alive.
"""
__module__ = 'psutil'
def __init__(self, seconds, pid=None, name=None):
Error.__init__(self)
self.seconds = seconds
self.pid = pid
self.name = name
self.msg = "timeout after %s seconds" % seconds
# ===================================================================
# --- utils
# ===================================================================
# This should be in _compat.py rather than here, but does not work well
# with setup.py importing this module via a sys.path trick.
if PY3:
if isinstance(__builtins__, dict): # cpython
exec_ = __builtins__["exec"]
else: # pypy
exec_ = getattr(__builtins__, "exec") # noqa
exec_("""def raise_from(value, from_value):
try:
raise value from from_value
finally:
value = None
""")
else:
def raise_from(value, from_value):
raise value
def usage_percent(used, total, round_=None):
"""Calculate percentage usage of 'used' against 'total'."""
try:
ret = (float(used) / total) * 100
except ZeroDivisionError:
return 0.0
else:
if round_ is not None:
ret = round(ret, round_)
return ret
def memoize(fun):
"""A simple memoize decorator for functions supporting (hashable)
positional arguments.
It also provides a cache_clear() function for clearing the cache:
>>> @memoize
... def foo()
... return 1
...
>>> foo()
1
>>> foo.cache_clear()
>>>
It supports:
- functions
- classes (acts as a @singleton)
- staticmethods
- classmethods
It does NOT support:
- methods
"""
@functools.wraps(fun)
def wrapper(*args, **kwargs):
key = (args, frozenset(sorted(kwargs.items())))
try:
return cache[key]
except KeyError:
try:
ret = cache[key] = fun(*args, **kwargs)
except Exception as err:
raise raise_from(err, None)
return ret
def cache_clear():
"""Clear cache."""
cache.clear()
cache = {}
wrapper.cache_clear = cache_clear
return wrapper
def memoize_when_activated(fun):
"""A memoize decorator which is disabled by default. It can be
activated and deactivated on request.
For efficiency reasons it can be used only against class methods
accepting no arguments.
>>> class Foo:
... @memoize
... def foo()
... print(1)
...
>>> f = Foo()
>>> # deactivated (default)
>>> foo()
1
>>> foo()
1
>>>
>>> # activated
>>> foo.cache_activate(self)
>>> foo()
1
>>> foo()
>>> foo()
>>>
"""
@functools.wraps(fun)
def wrapper(self):
try:
# case 1: we previously entered oneshot() ctx
ret = self._cache[fun]
except AttributeError:
# case 2: we never entered oneshot() ctx
try:
return fun(self)
except Exception as err:
raise raise_from(err, None)
except KeyError:
# case 3: we entered oneshot() ctx but there's no cache
# for this entry yet
try:
ret = fun(self)
except Exception as err:
raise raise_from(err, None)
try:
self._cache[fun] = ret
except AttributeError:
# multi-threading race condition, see:
# https://github.com/giampaolo/psutil/issues/1948
pass
return ret
def cache_activate(proc):
"""Activate cache. Expects a Process instance. Cache will be
stored as a "_cache" instance attribute."""
proc._cache = {}
def cache_deactivate(proc):
"""Deactivate and clear cache."""
try:
del proc._cache
except AttributeError:
pass
wrapper.cache_activate = cache_activate
wrapper.cache_deactivate = cache_deactivate
return wrapper
def isfile_strict(path):
"""Same as os.path.isfile() but does not swallow EACCES / EPERM
exceptions, see:
http://mail.python.org/pipermail/python-dev/2012-June/120787.html
"""
try:
st = os.stat(path)
except OSError as err:
if err.errno in (errno.EPERM, errno.EACCES):
raise
return False
else:
return stat.S_ISREG(st.st_mode)
def path_exists_strict(path):
"""Same as os.path.exists() but does not swallow EACCES / EPERM
exceptions, see:
http://mail.python.org/pipermail/python-dev/2012-June/120787.html
"""
try:
os.stat(path)
except OSError as err:
if err.errno in (errno.EPERM, errno.EACCES):
raise
return False
else:
return True
@memoize
def supports_ipv6():
"""Return True if IPv6 is supported on this platform."""
if not socket.has_ipv6 or AF_INET6 is None:
return False
try:
sock = socket.socket(AF_INET6, socket.SOCK_STREAM)
with contextlib.closing(sock):
sock.bind(("::1", 0))
return True
except socket.error:
return False
def parse_environ_block(data):
"""Parse a C environ block of environment variables into a dictionary."""
# The block is usually raw data from the target process. It might contain
# trailing garbage and lines that do not look like assignments.
ret = {}
pos = 0
# localize global variable to speed up access.
WINDOWS_ = WINDOWS
while True:
next_pos = data.find("\0", pos)
# nul byte at the beginning or double nul byte means finish
if next_pos <= pos:
break
# there might not be an equals sign
equal_pos = data.find("=", pos, next_pos)
if equal_pos > pos:
key = data[pos:equal_pos]
value = data[equal_pos + 1:next_pos]
# Windows expects environment variables to be uppercase only
if WINDOWS_:
key = key.upper()
ret[key] = value
pos = next_pos + 1
return ret
def sockfam_to_enum(num):
"""Convert a numeric socket family value to an IntEnum member.
If it's not a known member, return the numeric value itself.
"""
if enum is None:
return num
else: # pragma: no cover
try:
return socket.AddressFamily(num)
except ValueError:
return num
def socktype_to_enum(num):
"""Convert a numeric socket type value to an IntEnum member.
If it's not a known member, return the numeric value itself.
"""
if enum is None:
return num
else: # pragma: no cover
try:
return socket.SocketKind(num)
except ValueError:
return num
def conn_to_ntuple(fd, fam, type_, laddr, raddr, status, status_map, pid=None):
"""Convert a raw connection tuple to a proper ntuple."""
if fam in (socket.AF_INET, AF_INET6):
if laddr:
laddr = addr(*laddr)
if raddr:
raddr = addr(*raddr)
if type_ == socket.SOCK_STREAM and fam in (AF_INET, AF_INET6):
status = status_map.get(status, CONN_NONE)
else:
status = CONN_NONE # ignore whatever C returned to us
fam = sockfam_to_enum(fam)
type_ = socktype_to_enum(type_)
if pid is None:
return pconn(fd, fam, type_, laddr, raddr, status)
else:
return sconn(fd, fam, type_, laddr, raddr, status, pid)
def deprecated_method(replacement):
"""A decorator which can be used to mark a method as deprecated
'replcement' is the method name which will be called instead.
"""
def outer(fun):
msg = "%s() is deprecated and will be removed; use %s() instead" % (
fun.__name__, replacement)
if fun.__doc__ is None:
fun.__doc__ = msg
@functools.wraps(fun)
def inner(self, *args, **kwargs):
warnings.warn(msg, category=DeprecationWarning, stacklevel=2)
return getattr(self, replacement)(*args, **kwargs)
return inner
return outer
class _WrapNumbers:
"""Watches numbers so that they don't overflow and wrap
(reset to zero).
"""
def __init__(self):
self.lock = threading.Lock()
self.cache = {}
self.reminders = {}
self.reminder_keys = {}
def _add_dict(self, input_dict, name):
assert name not in self.cache
assert name not in self.reminders
assert name not in self.reminder_keys
self.cache[name] = input_dict
self.reminders[name] = collections.defaultdict(int)
self.reminder_keys[name] = collections.defaultdict(set)
def _remove_dead_reminders(self, input_dict, name):
"""In case the number of keys changed between calls (e.g. a
disk disappears) this removes the entry from self.reminders.
"""
old_dict = self.cache[name]
gone_keys = set(old_dict.keys()) - set(input_dict.keys())
for gone_key in gone_keys:
for remkey in self.reminder_keys[name][gone_key]:
del self.reminders[name][remkey]
del self.reminder_keys[name][gone_key]
def run(self, input_dict, name):
"""Cache dict and sum numbers which overflow and wrap.
Return an updated copy of `input_dict`
"""
if name not in self.cache:
# This was the first call.
self._add_dict(input_dict, name)
return input_dict
self._remove_dead_reminders(input_dict, name)
old_dict = self.cache[name]
new_dict = {}
for key in input_dict.keys():
input_tuple = input_dict[key]
try:
old_tuple = old_dict[key]
except KeyError:
# The input dict has a new key (e.g. a new disk or NIC)
# which didn't exist in the previous call.
new_dict[key] = input_tuple
continue
bits = []
for i in range(len(input_tuple)):
input_value = input_tuple[i]
old_value = old_tuple[i]
remkey = (key, i)
if input_value < old_value:
# it wrapped!
self.reminders[name][remkey] += old_value
self.reminder_keys[name][key].add(remkey)
bits.append(input_value + self.reminders[name][remkey])
new_dict[key] = tuple(bits)
self.cache[name] = input_dict
return new_dict
def cache_clear(self, name=None):
"""Clear the internal cache, optionally only for function 'name'."""
with self.lock:
if name is None:
self.cache.clear()
self.reminders.clear()
self.reminder_keys.clear()
else:
self.cache.pop(name, None)
self.reminders.pop(name, None)
self.reminder_keys.pop(name, None)
def cache_info(self):
"""Return internal cache dicts as a tuple of 3 elements."""
with self.lock:
return (self.cache, self.reminders, self.reminder_keys)
def wrap_numbers(input_dict, name):
"""Given an `input_dict` and a function `name`, adjust the numbers
which "wrap" (restart from zero) across different calls by adding
"old value" to "new value" and return an updated dict.
"""
with _wn.lock:
return _wn.run(input_dict, name)
_wn = _WrapNumbers()
wrap_numbers.cache_clear = _wn.cache_clear
wrap_numbers.cache_info = _wn.cache_info
# The read buffer size for open() builtin. This (also) dictates how
# much data we read(2) when iterating over file lines as in:
# >>> with open(file) as f:
# ... for line in f:
# ... ...
# Default per-line buffer size for binary files is 1K. For text files
# is 8K. We use a bigger buffer (32K) in order to have more consistent
# results when reading /proc pseudo files on Linux, see:
# https://github.com/giampaolo/psutil/issues/2050
# On Python 2 this also speeds up the reading of big files:
# (namely /proc/{pid}/smaps and /proc/net/*):
# https://github.com/giampaolo/psutil/issues/708
FILE_READ_BUFFER_SIZE = 32 * 1024
def open_binary(fname):
return open(fname, "rb", buffering=FILE_READ_BUFFER_SIZE)
def open_text(fname):
"""On Python 3 opens a file in text mode by using fs encoding and
a proper en/decoding errors handler.
On Python 2 this is just an alias for open(name, 'rt').
"""
if not PY3:
return open(fname, "rt", buffering=FILE_READ_BUFFER_SIZE)
# See:
# https://github.com/giampaolo/psutil/issues/675
# https://github.com/giampaolo/psutil/pull/733
fobj = open(fname, "rt", buffering=FILE_READ_BUFFER_SIZE,
encoding=ENCODING, errors=ENCODING_ERRS)
try:
# Dictates per-line read(2) buffer size. Defaults is 8k. See:
# https://github.com/giampaolo/psutil/issues/2050#issuecomment-1013387546
fobj._CHUNK_SIZE = FILE_READ_BUFFER_SIZE
except AttributeError:
pass
except Exception:
fobj.close()
raise
return fobj
def cat(fname, fallback=_DEFAULT, _open=open_text):
"""Read entire file content and return it as a string. File is
opened in text mode. If specified, `fallback` is the value
returned in case of error, either if the file does not exist or
it can't be read().
"""
if fallback is _DEFAULT:
with _open(fname) as f:
return f.read()
else:
try:
with _open(fname) as f:
return f.read()
except (IOError, OSError):
return fallback
def bcat(fname, fallback=_DEFAULT):
"""Same as above but opens file in binary mode."""
return cat(fname, fallback=fallback, _open=open_binary)
def bytes2human(n, format="%(value).1f%(symbol)s"):
"""Used by various scripts. See:
http://goo.gl/zeJZl
>>> bytes2human(10000)
'9.8K'
>>> bytes2human(100001221)
'95.4M'
"""
symbols = ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
prefix = {}
for i, s in enumerate(symbols[1:]):
prefix[s] = 1 << (i + 1) * 10
for symbol in reversed(symbols[1:]):
if n >= prefix[symbol]:
value = float(n) / prefix[symbol]
return format % locals()
return format % dict(symbol=symbols[0], value=n)
def get_procfs_path():
"""Return updated psutil.PROCFS_PATH constant."""
return sys.modules['psutil'].PROCFS_PATH
if PY3:
def decode(s):
return s.decode(encoding=ENCODING, errors=ENCODING_ERRS)
else:
def decode(s):
return s
# =====================================================================
# --- shell utils
# =====================================================================
@memoize
def term_supports_colors(file=sys.stdout): # pragma: no cover
if os.name == 'nt':
return True
try:
import curses
assert file.isatty()
curses.setupterm()
assert curses.tigetnum("colors") > 0
except Exception:
return False
else:
return True
def hilite(s, color=None, bold=False): # pragma: no cover
"""Return an highlighted version of 'string'."""
if not term_supports_colors():
return s
attr = []
colors = dict(green='32', red='91', brown='33', yellow='93', blue='34',
violet='35', lightblue='36', grey='37', darkgrey='30')
colors[None] = '29'
try:
color = colors[color]
except KeyError:
raise ValueError("invalid color %r; choose between %s" % (
list(colors.keys())))
attr.append(color)
if bold:
attr.append('1')
return '\x1b[%sm%s\x1b[0m' % (';'.join(attr), s)
def print_color(
s, color=None, bold=False, file=sys.stdout): # pragma: no cover
"""Print a colorized version of string."""
if not term_supports_colors():
print(s, file=file) # NOQA
elif POSIX:
print(hilite(s, color, bold), file=file) # NOQA
else:
import ctypes
DEFAULT_COLOR = 7
GetStdHandle = ctypes.windll.Kernel32.GetStdHandle
SetConsoleTextAttribute = \
ctypes.windll.Kernel32.SetConsoleTextAttribute
colors = dict(green=2, red=4, brown=6, yellow=6)
colors[None] = DEFAULT_COLOR
try:
color = colors[color]
except KeyError:
raise ValueError("invalid color %r; choose between %r" % (
color, list(colors.keys())))
if bold and color <= 7:
color += 8
handle_id = -12 if file is sys.stderr else -11
GetStdHandle.restype = ctypes.c_ulong
handle = GetStdHandle(handle_id)
SetConsoleTextAttribute(handle, color)
try:
print(s, file=file) # NOQA
finally:
SetConsoleTextAttribute(handle, DEFAULT_COLOR)
def debug(msg):
"""If PSUTIL_DEBUG env var is set, print a debug message to stderr."""
if PSUTIL_DEBUG:
import inspect
fname, lineno, _, lines, index = inspect.getframeinfo(
inspect.currentframe().f_back)
if isinstance(msg, Exception):
if isinstance(msg, (OSError, IOError, EnvironmentError)):
# ...because str(exc) may contain info about the file name
msg = "ignoring %s" % msg
else:
msg = "ignoring %r" % msg
print("psutil-debug [%s:%s]> %s" % (fname, lineno, msg), # NOQA
file=sys.stderr)

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Module which provides compatibility with older Python versions.
This is more future-compatible rather than the opposite (prefer latest
Python 3 way of doing things).
"""
import collections
import contextlib
import errno
import functools
import os
import sys
import types
__all__ = [
# constants
"PY3",
# builtins
"long", "range", "super", "unicode", "basestring",
# literals
"u", "b",
# collections module
"lru_cache",
# shutil module
"which", "get_terminal_size",
# contextlib module
"redirect_stderr",
# python 3 exceptions
"FileNotFoundError", "PermissionError", "ProcessLookupError",
"InterruptedError", "ChildProcessError", "FileExistsError"]
PY3 = sys.version_info[0] == 3
_SENTINEL = object()
if PY3:
long = int
xrange = range
unicode = str
basestring = str
range = range
def u(s):
return s
def b(s):
return s.encode("latin-1")
else:
long = long
range = xrange
unicode = unicode
basestring = basestring
def u(s):
return unicode(s, "unicode_escape")
def b(s):
return s
# --- builtins
# Python 3 super().
# Taken from "future" package.
# Credit: Ryan Kelly
if PY3:
super = super
else:
_builtin_super = super
def super(type_=_SENTINEL, type_or_obj=_SENTINEL, framedepth=1):
"""Like Python 3 builtin super(). If called without any arguments
it attempts to infer them at runtime.
"""
if type_ is _SENTINEL:
f = sys._getframe(framedepth)
try:
# Get the function's first positional argument.
type_or_obj = f.f_locals[f.f_code.co_varnames[0]]
except (IndexError, KeyError):
raise RuntimeError('super() used in a function with no args')
try:
# Get the MRO so we can crawl it.
mro = type_or_obj.__mro__
except (AttributeError, RuntimeError):
try:
mro = type_or_obj.__class__.__mro__
except AttributeError:
raise RuntimeError('super() used in a non-newstyle class')
for type_ in mro:
# Find the class that owns the currently-executing method.
for meth in type_.__dict__.values():
# Drill down through any wrappers to the underlying func.
# This handles e.g. classmethod() and staticmethod().
try:
while not isinstance(meth, types.FunctionType):
if isinstance(meth, property):
# Calling __get__ on the property will invoke
# user code which might throw exceptions or
# have side effects
meth = meth.fget
else:
try:
meth = meth.__func__
except AttributeError:
meth = meth.__get__(type_or_obj, type_)
except (AttributeError, TypeError):
continue
if meth.func_code is f.f_code:
break # found
else:
# Not found. Move onto the next class in MRO.
continue
break # found
else:
raise RuntimeError('super() called outside a method')
# Dispatch to builtin super().
if type_or_obj is not _SENTINEL:
return _builtin_super(type_, type_or_obj)
return _builtin_super(type_)
# --- exceptions
if PY3:
FileNotFoundError = FileNotFoundError # NOQA
PermissionError = PermissionError # NOQA
ProcessLookupError = ProcessLookupError # NOQA
InterruptedError = InterruptedError # NOQA
ChildProcessError = ChildProcessError # NOQA
FileExistsError = FileExistsError # NOQA
else:
# https://github.com/PythonCharmers/python-future/blob/exceptions/
# src/future/types/exceptions/pep3151.py
import platform
def _instance_checking_exception(base_exception=Exception):
def wrapped(instance_checker):
class TemporaryClass(base_exception):
def __init__(self, *args, **kwargs):
if len(args) == 1 and isinstance(args[0], TemporaryClass):
unwrap_me = args[0]
for attr in dir(unwrap_me):
if not attr.startswith('__'):
setattr(self, attr, getattr(unwrap_me, attr))
else:
super(TemporaryClass, self).__init__(*args, **kwargs)
class __metaclass__(type):
def __instancecheck__(cls, inst):
return instance_checker(inst)
def __subclasscheck__(cls, classinfo):
value = sys.exc_info()[1]
return isinstance(value, cls)
TemporaryClass.__name__ = instance_checker.__name__
TemporaryClass.__doc__ = instance_checker.__doc__
return TemporaryClass
return wrapped
@_instance_checking_exception(EnvironmentError)
def FileNotFoundError(inst):
return getattr(inst, 'errno', _SENTINEL) == errno.ENOENT
@_instance_checking_exception(EnvironmentError)
def ProcessLookupError(inst):
return getattr(inst, 'errno', _SENTINEL) == errno.ESRCH
@_instance_checking_exception(EnvironmentError)
def PermissionError(inst):
return getattr(inst, 'errno', _SENTINEL) in (
errno.EACCES, errno.EPERM)
@_instance_checking_exception(EnvironmentError)
def InterruptedError(inst):
return getattr(inst, 'errno', _SENTINEL) == errno.EINTR
@_instance_checking_exception(EnvironmentError)
def ChildProcessError(inst):
return getattr(inst, 'errno', _SENTINEL) == errno.ECHILD
@_instance_checking_exception(EnvironmentError)
def FileExistsError(inst):
return getattr(inst, 'errno', _SENTINEL) == errno.EEXIST
if platform.python_implementation() != "CPython":
try:
raise OSError(errno.EEXIST, "perm")
except FileExistsError:
pass
except OSError:
raise RuntimeError(
"broken or incompatible Python implementation, see: "
"https://github.com/giampaolo/psutil/issues/1659")
# --- stdlib additions
# py 3.2 functools.lru_cache
# Taken from: http://code.activestate.com/recipes/578078
# Credit: Raymond Hettinger
try:
from functools import lru_cache
except ImportError:
try:
from threading import RLock
except ImportError:
from dummy_threading import RLock
_CacheInfo = collections.namedtuple(
"CacheInfo", ["hits", "misses", "maxsize", "currsize"])
class _HashedSeq(list):
__slots__ = 'hashvalue'
def __init__(self, tup, hash=hash):
self[:] = tup
self.hashvalue = hash(tup)
def __hash__(self):
return self.hashvalue
def _make_key(args, kwds, typed,
kwd_mark=(_SENTINEL, ),
fasttypes=set((int, str, frozenset, type(None))), # noqa
sorted=sorted, tuple=tuple, type=type, len=len):
key = args
if kwds:
sorted_items = sorted(kwds.items())
key += kwd_mark
for item in sorted_items:
key += item
if typed:
key += tuple(type(v) for v in args)
if kwds:
key += tuple(type(v) for k, v in sorted_items)
elif len(key) == 1 and type(key[0]) in fasttypes:
return key[0]
return _HashedSeq(key)
def lru_cache(maxsize=100, typed=False):
"""Least-recently-used cache decorator, see:
http://docs.python.org/3/library/functools.html#functools.lru_cache
"""
def decorating_function(user_function):
cache = {}
stats = [0, 0]
HITS, MISSES = 0, 1
make_key = _make_key
cache_get = cache.get
_len = len
lock = RLock()
root = []
root[:] = [root, root, None, None]
nonlocal_root = [root]
PREV, NEXT, KEY, RESULT = 0, 1, 2, 3
if maxsize == 0:
def wrapper(*args, **kwds):
result = user_function(*args, **kwds)
stats[MISSES] += 1
return result
elif maxsize is None:
def wrapper(*args, **kwds):
key = make_key(args, kwds, typed)
result = cache_get(key, root)
if result is not root:
stats[HITS] += 1
return result
result = user_function(*args, **kwds)
cache[key] = result
stats[MISSES] += 1
return result
else:
def wrapper(*args, **kwds):
if kwds or typed:
key = make_key(args, kwds, typed)
else:
key = args
lock.acquire()
try:
link = cache_get(key)
if link is not None:
root, = nonlocal_root
link_prev, link_next, key, result = link
link_prev[NEXT] = link_next
link_next[PREV] = link_prev
last = root[PREV]
last[NEXT] = root[PREV] = link
link[PREV] = last
link[NEXT] = root
stats[HITS] += 1
return result
finally:
lock.release()
result = user_function(*args, **kwds)
lock.acquire()
try:
root, = nonlocal_root
if key in cache:
pass
elif _len(cache) >= maxsize:
oldroot = root
oldroot[KEY] = key
oldroot[RESULT] = result
root = nonlocal_root[0] = oldroot[NEXT]
oldkey = root[KEY]
root[KEY] = root[RESULT] = None
del cache[oldkey]
cache[key] = oldroot
else:
last = root[PREV]
link = [last, root, key, result]
last[NEXT] = root[PREV] = cache[key] = link
stats[MISSES] += 1
finally:
lock.release()
return result
def cache_info():
"""Report cache statistics"""
lock.acquire()
try:
return _CacheInfo(stats[HITS], stats[MISSES], maxsize,
len(cache))
finally:
lock.release()
def cache_clear():
"""Clear the cache and cache statistics"""
lock.acquire()
try:
cache.clear()
root = nonlocal_root[0]
root[:] = [root, root, None, None]
stats[:] = [0, 0]
finally:
lock.release()
wrapper.__wrapped__ = user_function
wrapper.cache_info = cache_info
wrapper.cache_clear = cache_clear
return functools.update_wrapper(wrapper, user_function)
return decorating_function
# python 3.3
try:
from shutil import which
except ImportError:
def which(cmd, mode=os.F_OK | os.X_OK, path=None):
"""Given a command, mode, and a PATH string, return the path which
conforms to the given mode on the PATH, or None if there is no such
file.
`mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
of os.environ.get("PATH"), or can be overridden with a custom search
path.
"""
def _access_check(fn, mode):
return (os.path.exists(fn) and os.access(fn, mode) and
not os.path.isdir(fn))
if os.path.dirname(cmd):
if _access_check(cmd, mode):
return cmd
return None
if path is None:
path = os.environ.get("PATH", os.defpath)
if not path:
return None
path = path.split(os.pathsep)
if sys.platform == "win32":
if os.curdir not in path:
path.insert(0, os.curdir)
pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
files = [cmd]
else:
files = [cmd + ext for ext in pathext]
else:
files = [cmd]
seen = set()
for dir in path:
normdir = os.path.normcase(dir)
if normdir not in seen:
seen.add(normdir)
for thefile in files:
name = os.path.join(dir, thefile)
if _access_check(name, mode):
return name
return None
# python 3.3
try:
from shutil import get_terminal_size
except ImportError:
def get_terminal_size(fallback=(80, 24)):
try:
import fcntl
import struct
import termios
except ImportError:
return fallback
else:
try:
# This should work on Linux.
res = struct.unpack(
'hh', fcntl.ioctl(1, termios.TIOCGWINSZ, '1234'))
return (res[1], res[0])
except Exception:
return fallback
# python 3.3
try:
from subprocess import TimeoutExpired as SubprocessTimeoutExpired
except ImportError:
class SubprocessTimeoutExpired(Exception):
pass
# python 3.5
try:
from contextlib import redirect_stderr
except ImportError:
@contextlib.contextmanager
def redirect_stderr(new_target):
original = sys.stderr
try:
sys.stderr = new_target
yield new_target
finally:
sys.stderr = original

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# Copyright (c) 2009, Giampaolo Rodola'
# Copyright (c) 2017, Arnon Yaari
# All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""AIX platform implementation."""
import functools
import glob
import os
import re
import subprocess
import sys
from collections import namedtuple
from . import _common
from . import _psposix
from . import _psutil_aix as cext
from . import _psutil_posix as cext_posix
from ._common import NIC_DUPLEX_FULL
from ._common import NIC_DUPLEX_HALF
from ._common import NIC_DUPLEX_UNKNOWN
from ._common import AccessDenied
from ._common import NoSuchProcess
from ._common import ZombieProcess
from ._common import conn_to_ntuple
from ._common import get_procfs_path
from ._common import memoize_when_activated
from ._common import usage_percent
from ._compat import PY3
from ._compat import FileNotFoundError
from ._compat import PermissionError
from ._compat import ProcessLookupError
__extra__all__ = ["PROCFS_PATH"]
# =====================================================================
# --- globals
# =====================================================================
HAS_THREADS = hasattr(cext, "proc_threads")
HAS_NET_IO_COUNTERS = hasattr(cext, "net_io_counters")
HAS_PROC_IO_COUNTERS = hasattr(cext, "proc_io_counters")
PAGE_SIZE = cext_posix.getpagesize()
AF_LINK = cext_posix.AF_LINK
PROC_STATUSES = {
cext.SIDL: _common.STATUS_IDLE,
cext.SZOMB: _common.STATUS_ZOMBIE,
cext.SACTIVE: _common.STATUS_RUNNING,
cext.SSWAP: _common.STATUS_RUNNING, # TODO what status is this?
cext.SSTOP: _common.STATUS_STOPPED,
}
TCP_STATUSES = {
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
cext.TCPS_SYN_RCVD: _common.CONN_SYN_RECV,
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.TCPS_CLOSED: _common.CONN_CLOSE,
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
cext.TCPS_LISTEN: _common.CONN_LISTEN,
cext.TCPS_CLOSING: _common.CONN_CLOSING,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
}
proc_info_map = dict(
ppid=0,
rss=1,
vms=2,
create_time=3,
nice=4,
num_threads=5,
status=6,
ttynr=7)
# =====================================================================
# --- named tuples
# =====================================================================
# psutil.Process.memory_info()
pmem = namedtuple('pmem', ['rss', 'vms'])
# psutil.Process.memory_full_info()
pfullmem = pmem
# psutil.Process.cpu_times()
scputimes = namedtuple('scputimes', ['user', 'system', 'idle', 'iowait'])
# psutil.virtual_memory()
svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free'])
# =====================================================================
# --- memory
# =====================================================================
def virtual_memory():
total, avail, free, pinned, inuse = cext.virtual_mem()
percent = usage_percent((total - avail), total, round_=1)
return svmem(total, avail, percent, inuse, free)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
total, free, sin, sout = cext.swap_mem()
used = total - free
percent = usage_percent(used, total, round_=1)
return _common.sswap(total, used, free, percent, sin, sout)
# =====================================================================
# --- CPU
# =====================================================================
def cpu_times():
"""Return system-wide CPU times as a named tuple"""
ret = cext.per_cpu_times()
return scputimes(*[sum(x) for x in zip(*ret)])
def per_cpu_times():
"""Return system per-CPU times as a list of named tuples"""
ret = cext.per_cpu_times()
return [scputimes(*x) for x in ret]
def cpu_count_logical():
"""Return the number of logical CPUs in the system."""
try:
return os.sysconf("SC_NPROCESSORS_ONLN")
except ValueError:
# mimic os.cpu_count() behavior
return None
def cpu_count_cores():
cmd = "lsdev -Cc processor"
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout, stderr = [x.decode(sys.stdout.encoding)
for x in (stdout, stderr)]
if p.returncode != 0:
raise RuntimeError("%r command error\n%s" % (cmd, stderr))
processors = stdout.strip().splitlines()
return len(processors) or None
def cpu_stats():
"""Return various CPU stats as a named tuple."""
ctx_switches, interrupts, soft_interrupts, syscalls = cext.cpu_stats()
return _common.scpustats(
ctx_switches, interrupts, soft_interrupts, syscalls)
# =====================================================================
# --- disks
# =====================================================================
disk_io_counters = cext.disk_io_counters
disk_usage = _psposix.disk_usage
def disk_partitions(all=False):
"""Return system disk partitions."""
# TODO - the filtering logic should be better checked so that
# it tries to reflect 'df' as much as possible
retlist = []
partitions = cext.disk_partitions()
for partition in partitions:
device, mountpoint, fstype, opts = partition
if device == 'none':
device = ''
if not all:
# Differently from, say, Linux, we don't have a list of
# common fs types so the best we can do, AFAIK, is to
# filter by filesystem having a total size > 0.
if not disk_usage(mountpoint).total:
continue
maxfile = maxpath = None # set later
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts,
maxfile, maxpath)
retlist.append(ntuple)
return retlist
# =====================================================================
# --- network
# =====================================================================
net_if_addrs = cext_posix.net_if_addrs
if HAS_NET_IO_COUNTERS:
net_io_counters = cext.net_io_counters
def net_connections(kind, _pid=-1):
"""Return socket connections. If pid == -1 return system-wide
connections (as opposed to connections opened by one process only).
"""
cmap = _common.conn_tmap
if kind not in cmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in cmap])))
families, types = _common.conn_tmap[kind]
rawlist = cext.net_connections(_pid)
ret = []
for item in rawlist:
fd, fam, type_, laddr, raddr, status, pid = item
if fam not in families:
continue
if type_ not in types:
continue
nt = conn_to_ntuple(fd, fam, type_, laddr, raddr, status,
TCP_STATUSES, pid=pid if _pid == -1 else None)
ret.append(nt)
return ret
def net_if_stats():
"""Get NIC stats (isup, duplex, speed, mtu)."""
duplex_map = {"Full": NIC_DUPLEX_FULL,
"Half": NIC_DUPLEX_HALF}
names = set([x[0] for x in net_if_addrs()])
ret = {}
for name in names:
mtu = cext_posix.net_if_mtu(name)
flags = cext_posix.net_if_flags(name)
# try to get speed and duplex
# TODO: rewrite this in C (entstat forks, so use truss -f to follow.
# looks like it is using an undocumented ioctl?)
duplex = ""
speed = 0
p = subprocess.Popen(["/usr/bin/entstat", "-d", name],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout, stderr = [x.decode(sys.stdout.encoding)
for x in (stdout, stderr)]
if p.returncode == 0:
re_result = re.search(
r"Running: (\d+) Mbps.*?(\w+) Duplex", stdout)
if re_result is not None:
speed = int(re_result.group(1))
duplex = re_result.group(2)
output_flags = ','.join(flags)
isup = 'running' in flags
duplex = duplex_map.get(duplex, NIC_DUPLEX_UNKNOWN)
ret[name] = _common.snicstats(isup, duplex, speed, mtu, output_flags)
return ret
# =====================================================================
# --- other system functions
# =====================================================================
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
return cext.boot_time()
def users():
"""Return currently connected users as a list of namedtuples."""
retlist = []
rawlist = cext.users()
localhost = (':0.0', ':0')
for item in rawlist:
user, tty, hostname, tstamp, user_process, pid = item
# note: the underlying C function includes entries about
# system boot, run level and others. We might want
# to use them in the future.
if not user_process:
continue
if hostname in localhost:
hostname = 'localhost'
nt = _common.suser(user, tty, hostname, tstamp, pid)
retlist.append(nt)
return retlist
# =====================================================================
# --- processes
# =====================================================================
def pids():
"""Returns a list of PIDs currently running on the system."""
return [int(x) for x in os.listdir(get_procfs_path()) if x.isdigit()]
def pid_exists(pid):
"""Check for the existence of a unix pid."""
return os.path.exists(os.path.join(get_procfs_path(), str(pid), "psinfo"))
def wrap_exceptions(fun):
"""Call callable into a try/except clause and translate ENOENT,
EACCES and EPERM in NoSuchProcess or AccessDenied exceptions.
"""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except (FileNotFoundError, ProcessLookupError):
# ENOENT (no such file or directory) gets raised on open().
# ESRCH (no such process) can get raised on read() if
# process is gone in meantime.
if not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name)
else:
raise ZombieProcess(self.pid, self._name, self._ppid)
except PermissionError:
raise AccessDenied(self.pid, self._name)
return wrapper
class Process(object):
"""Wrapper class around underlying C implementation."""
__slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"]
def __init__(self, pid):
self.pid = pid
self._name = None
self._ppid = None
self._procfs_path = get_procfs_path()
def oneshot_enter(self):
self._proc_basic_info.cache_activate(self)
self._proc_cred.cache_activate(self)
def oneshot_exit(self):
self._proc_basic_info.cache_deactivate(self)
self._proc_cred.cache_deactivate(self)
@wrap_exceptions
@memoize_when_activated
def _proc_basic_info(self):
return cext.proc_basic_info(self.pid, self._procfs_path)
@wrap_exceptions
@memoize_when_activated
def _proc_cred(self):
return cext.proc_cred(self.pid, self._procfs_path)
@wrap_exceptions
def name(self):
if self.pid == 0:
return "swapper"
# note: max 16 characters
return cext.proc_name(self.pid, self._procfs_path).rstrip("\x00")
@wrap_exceptions
def exe(self):
# there is no way to get executable path in AIX other than to guess,
# and guessing is more complex than what's in the wrapping class
cmdline = self.cmdline()
if not cmdline:
return ''
exe = cmdline[0]
if os.path.sep in exe:
# relative or absolute path
if not os.path.isabs(exe):
# if cwd has changed, we're out of luck - this may be wrong!
exe = os.path.abspath(os.path.join(self.cwd(), exe))
if (os.path.isabs(exe) and
os.path.isfile(exe) and
os.access(exe, os.X_OK)):
return exe
# not found, move to search in PATH using basename only
exe = os.path.basename(exe)
# search for exe name PATH
for path in os.environ["PATH"].split(":"):
possible_exe = os.path.abspath(os.path.join(path, exe))
if (os.path.isfile(possible_exe) and
os.access(possible_exe, os.X_OK)):
return possible_exe
return ''
@wrap_exceptions
def cmdline(self):
return cext.proc_args(self.pid)
@wrap_exceptions
def environ(self):
return cext.proc_environ(self.pid)
@wrap_exceptions
def create_time(self):
return self._proc_basic_info()[proc_info_map['create_time']]
@wrap_exceptions
def num_threads(self):
return self._proc_basic_info()[proc_info_map['num_threads']]
if HAS_THREADS:
@wrap_exceptions
def threads(self):
rawlist = cext.proc_threads(self.pid)
retlist = []
for thread_id, utime, stime in rawlist:
ntuple = _common.pthread(thread_id, utime, stime)
retlist.append(ntuple)
# The underlying C implementation retrieves all OS threads
# and filters them by PID. At this point we can't tell whether
# an empty list means there were no connections for process or
# process is no longer active so we force NSP in case the PID
# is no longer there.
if not retlist:
# will raise NSP if process is gone
os.stat('%s/%s' % (self._procfs_path, self.pid))
return retlist
@wrap_exceptions
def connections(self, kind='inet'):
ret = net_connections(kind, _pid=self.pid)
# The underlying C implementation retrieves all OS connections
# and filters them by PID. At this point we can't tell whether
# an empty list means there were no connections for process or
# process is no longer active so we force NSP in case the PID
# is no longer there.
if not ret:
# will raise NSP if process is gone
os.stat('%s/%s' % (self._procfs_path, self.pid))
return ret
@wrap_exceptions
def nice_get(self):
return cext_posix.getpriority(self.pid)
@wrap_exceptions
def nice_set(self, value):
return cext_posix.setpriority(self.pid, value)
@wrap_exceptions
def ppid(self):
self._ppid = self._proc_basic_info()[proc_info_map['ppid']]
return self._ppid
@wrap_exceptions
def uids(self):
real, effective, saved, _, _, _ = self._proc_cred()
return _common.puids(real, effective, saved)
@wrap_exceptions
def gids(self):
_, _, _, real, effective, saved = self._proc_cred()
return _common.puids(real, effective, saved)
@wrap_exceptions
def cpu_times(self):
t = cext.proc_cpu_times(self.pid, self._procfs_path)
return _common.pcputimes(*t)
@wrap_exceptions
def terminal(self):
ttydev = self._proc_basic_info()[proc_info_map['ttynr']]
# convert from 64-bit dev_t to 32-bit dev_t and then map the device
ttydev = (((ttydev & 0x0000FFFF00000000) >> 16) | (ttydev & 0xFFFF))
# try to match rdev of /dev/pts/* files ttydev
for dev in glob.glob("/dev/**/*"):
if os.stat(dev).st_rdev == ttydev:
return dev
return None
@wrap_exceptions
def cwd(self):
procfs_path = self._procfs_path
try:
result = os.readlink("%s/%s/cwd" % (procfs_path, self.pid))
return result.rstrip('/')
except FileNotFoundError:
os.stat("%s/%s" % (procfs_path, self.pid)) # raise NSP or AD
return ""
@wrap_exceptions
def memory_info(self):
ret = self._proc_basic_info()
rss = ret[proc_info_map['rss']] * 1024
vms = ret[proc_info_map['vms']] * 1024
return pmem(rss, vms)
memory_full_info = memory_info
@wrap_exceptions
def status(self):
code = self._proc_basic_info()[proc_info_map['status']]
# XXX is '?' legit? (we're not supposed to return it anyway)
return PROC_STATUSES.get(code, '?')
def open_files(self):
# TODO rewrite without using procfiles (stat /proc/pid/fd/* and then
# find matching name of the inode)
p = subprocess.Popen(["/usr/bin/procfiles", "-n", str(self.pid)],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout, stderr = [x.decode(sys.stdout.encoding)
for x in (stdout, stderr)]
if "no such process" in stderr.lower():
raise NoSuchProcess(self.pid, self._name)
procfiles = re.findall(r"(\d+): S_IFREG.*\s*.*name:(.*)\n", stdout)
retlist = []
for fd, path in procfiles:
path = path.strip()
if path.startswith("//"):
path = path[1:]
if path.lower() == "cannot be retrieved":
continue
retlist.append(_common.popenfile(path, int(fd)))
return retlist
@wrap_exceptions
def num_fds(self):
if self.pid == 0: # no /proc/0/fd
return 0
return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid)))
@wrap_exceptions
def num_ctx_switches(self):
return _common.pctxsw(
*cext.proc_num_ctx_switches(self.pid))
@wrap_exceptions
def wait(self, timeout=None):
return _psposix.wait_pid(self.pid, timeout, self._name)
if HAS_PROC_IO_COUNTERS:
@wrap_exceptions
def io_counters(self):
try:
rc, wc, rb, wb = cext.proc_io_counters(self.pid)
except OSError:
# if process is terminated, proc_io_counters returns OSError
# instead of NSP
if not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name)
raise
return _common.pio(rc, wc, rb, wb)

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""FreeBSD, OpenBSD and NetBSD platforms implementation."""
import contextlib
import errno
import functools
import os
import xml.etree.ElementTree as ET
from collections import defaultdict
from collections import namedtuple
from . import _common
from . import _psposix
from . import _psutil_bsd as cext
from . import _psutil_posix as cext_posix
from ._common import FREEBSD
from ._common import NETBSD
from ._common import OPENBSD
from ._common import AccessDenied
from ._common import NoSuchProcess
from ._common import ZombieProcess
from ._common import conn_tmap
from ._common import conn_to_ntuple
from ._common import memoize
from ._common import memoize_when_activated
from ._common import usage_percent
from ._compat import FileNotFoundError
from ._compat import PermissionError
from ._compat import ProcessLookupError
from ._compat import which
__extra__all__ = []
# =====================================================================
# --- globals
# =====================================================================
if FREEBSD:
PROC_STATUSES = {
cext.SIDL: _common.STATUS_IDLE,
cext.SRUN: _common.STATUS_RUNNING,
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SSTOP: _common.STATUS_STOPPED,
cext.SZOMB: _common.STATUS_ZOMBIE,
cext.SWAIT: _common.STATUS_WAITING,
cext.SLOCK: _common.STATUS_LOCKED,
}
elif OPENBSD:
PROC_STATUSES = {
cext.SIDL: _common.STATUS_IDLE,
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SSTOP: _common.STATUS_STOPPED,
# According to /usr/include/sys/proc.h SZOMB is unused.
# test_zombie_process() shows that SDEAD is the right
# equivalent. Also it appears there's no equivalent of
# psutil.STATUS_DEAD. SDEAD really means STATUS_ZOMBIE.
# cext.SZOMB: _common.STATUS_ZOMBIE,
cext.SDEAD: _common.STATUS_ZOMBIE,
cext.SZOMB: _common.STATUS_ZOMBIE,
# From http://www.eecs.harvard.edu/~margo/cs161/videos/proc.h.txt
# OpenBSD has SRUN and SONPROC: SRUN indicates that a process
# is runnable but *not* yet running, i.e. is on a run queue.
# SONPROC indicates that the process is actually executing on
# a CPU, i.e. it is no longer on a run queue.
# As such we'll map SRUN to STATUS_WAKING and SONPROC to
# STATUS_RUNNING
cext.SRUN: _common.STATUS_WAKING,
cext.SONPROC: _common.STATUS_RUNNING,
}
elif NETBSD:
PROC_STATUSES = {
cext.SIDL: _common.STATUS_IDLE,
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SSTOP: _common.STATUS_STOPPED,
cext.SZOMB: _common.STATUS_ZOMBIE,
cext.SRUN: _common.STATUS_WAKING,
cext.SONPROC: _common.STATUS_RUNNING,
}
TCP_STATUSES = {
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV,
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.TCPS_CLOSED: _common.CONN_CLOSE,
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
cext.TCPS_LISTEN: _common.CONN_LISTEN,
cext.TCPS_CLOSING: _common.CONN_CLOSING,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
}
PAGESIZE = cext_posix.getpagesize()
AF_LINK = cext_posix.AF_LINK
HAS_PER_CPU_TIMES = hasattr(cext, "per_cpu_times")
HAS_PROC_NUM_THREADS = hasattr(cext, "proc_num_threads")
HAS_PROC_OPEN_FILES = hasattr(cext, 'proc_open_files')
HAS_PROC_NUM_FDS = hasattr(cext, 'proc_num_fds')
kinfo_proc_map = dict(
ppid=0,
status=1,
real_uid=2,
effective_uid=3,
saved_uid=4,
real_gid=5,
effective_gid=6,
saved_gid=7,
ttynr=8,
create_time=9,
ctx_switches_vol=10,
ctx_switches_unvol=11,
read_io_count=12,
write_io_count=13,
user_time=14,
sys_time=15,
ch_user_time=16,
ch_sys_time=17,
rss=18,
vms=19,
memtext=20,
memdata=21,
memstack=22,
cpunum=23,
name=24,
)
# =====================================================================
# --- named tuples
# =====================================================================
# psutil.virtual_memory()
svmem = namedtuple(
'svmem', ['total', 'available', 'percent', 'used', 'free',
'active', 'inactive', 'buffers', 'cached', 'shared', 'wired'])
# psutil.cpu_times()
scputimes = namedtuple(
'scputimes', ['user', 'nice', 'system', 'idle', 'irq'])
# psutil.Process.memory_info()
pmem = namedtuple('pmem', ['rss', 'vms', 'text', 'data', 'stack'])
# psutil.Process.memory_full_info()
pfullmem = pmem
# psutil.Process.cpu_times()
pcputimes = namedtuple('pcputimes',
['user', 'system', 'children_user', 'children_system'])
# psutil.Process.memory_maps(grouped=True)
pmmap_grouped = namedtuple(
'pmmap_grouped', 'path rss, private, ref_count, shadow_count')
# psutil.Process.memory_maps(grouped=False)
pmmap_ext = namedtuple(
'pmmap_ext', 'addr, perms path rss, private, ref_count, shadow_count')
# psutil.disk_io_counters()
if FREEBSD:
sdiskio = namedtuple('sdiskio', ['read_count', 'write_count',
'read_bytes', 'write_bytes',
'read_time', 'write_time',
'busy_time'])
else:
sdiskio = namedtuple('sdiskio', ['read_count', 'write_count',
'read_bytes', 'write_bytes'])
# =====================================================================
# --- memory
# =====================================================================
def virtual_memory():
mem = cext.virtual_mem()
if NETBSD:
total, free, active, inactive, wired, cached = mem
# On NetBSD buffers and shared mem is determined via /proc.
# The C ext set them to 0.
with open('/proc/meminfo', 'rb') as f:
for line in f:
if line.startswith(b'Buffers:'):
buffers = int(line.split()[1]) * 1024
elif line.startswith(b'MemShared:'):
shared = int(line.split()[1]) * 1024
# Before avail was calculated as (inactive + cached + free),
# same as zabbix, but it turned out it could exceed total (see
# #2233), so zabbix seems to be wrong. Htop calculates it
# differently, and the used value seem more realistic, so let's
# match htop.
# https://github.com/htop-dev/htop/blob/e7f447b/netbsd/NetBSDProcessList.c#L162 # noqa
# https://github.com/zabbix/zabbix/blob/af5e0f8/src/libs/zbxsysinfo/netbsd/memory.c#L135 # noqa
used = active + wired
avail = total - used
else:
total, free, active, inactive, wired, cached, buffers, shared = mem
# matches freebsd-memory CLI:
# * https://people.freebsd.org/~rse/dist/freebsd-memory
# * https://www.cyberciti.biz/files/scripts/freebsd-memory.pl.txt
# matches zabbix:
# * https://github.com/zabbix/zabbix/blob/af5e0f8/src/libs/zbxsysinfo/freebsd/memory.c#L143 # noqa
avail = inactive + cached + free
used = active + wired + cached
percent = usage_percent((total - avail), total, round_=1)
return svmem(total, avail, percent, used, free,
active, inactive, buffers, cached, shared, wired)
def swap_memory():
"""System swap memory as (total, used, free, sin, sout) namedtuple."""
total, used, free, sin, sout = cext.swap_mem()
percent = usage_percent(used, total, round_=1)
return _common.sswap(total, used, free, percent, sin, sout)
# =====================================================================
# --- CPU
# =====================================================================
def cpu_times():
"""Return system per-CPU times as a namedtuple"""
user, nice, system, idle, irq = cext.cpu_times()
return scputimes(user, nice, system, idle, irq)
if HAS_PER_CPU_TIMES:
def per_cpu_times():
"""Return system CPU times as a namedtuple"""
ret = []
for cpu_t in cext.per_cpu_times():
user, nice, system, idle, irq = cpu_t
item = scputimes(user, nice, system, idle, irq)
ret.append(item)
return ret
else:
# XXX
# Ok, this is very dirty.
# On FreeBSD < 8 we cannot gather per-cpu information, see:
# https://github.com/giampaolo/psutil/issues/226
# If num cpus > 1, on first call we return single cpu times to avoid a
# crash at psutil import time.
# Next calls will fail with NotImplementedError
def per_cpu_times():
"""Return system CPU times as a namedtuple"""
if cpu_count_logical() == 1:
return [cpu_times()]
if per_cpu_times.__called__:
raise NotImplementedError("supported only starting from FreeBSD 8")
per_cpu_times.__called__ = True
return [cpu_times()]
per_cpu_times.__called__ = False
def cpu_count_logical():
"""Return the number of logical CPUs in the system."""
return cext.cpu_count_logical()
if OPENBSD or NETBSD:
def cpu_count_cores():
# OpenBSD and NetBSD do not implement this.
return 1 if cpu_count_logical() == 1 else None
else:
def cpu_count_cores():
"""Return the number of CPU cores in the system."""
# From the C module we'll get an XML string similar to this:
# http://manpages.ubuntu.com/manpages/precise/man4/smp.4freebsd.html
# We may get None in case "sysctl kern.sched.topology_spec"
# is not supported on this BSD version, in which case we'll mimic
# os.cpu_count() and return None.
ret = None
s = cext.cpu_topology()
if s is not None:
# get rid of padding chars appended at the end of the string
index = s.rfind("</groups>")
if index != -1:
s = s[:index + 9]
root = ET.fromstring(s)
try:
ret = len(root.findall('group/children/group/cpu')) or None
finally:
# needed otherwise it will memleak
root.clear()
if not ret:
# If logical CPUs == 1 it's obvious we' have only 1 core.
if cpu_count_logical() == 1:
return 1
return ret
def cpu_stats():
"""Return various CPU stats as a named tuple."""
if FREEBSD:
# Note: the C ext is returning some metrics we are not exposing:
# traps.
ctxsw, intrs, soft_intrs, syscalls, traps = cext.cpu_stats()
elif NETBSD:
# XXX
# Note about intrs: the C extension returns 0. intrs
# can be determined via /proc/stat; it has the same value as
# soft_intrs thought so the kernel is faking it (?).
#
# Note about syscalls: the C extension always sets it to 0 (?).
#
# Note: the C ext is returning some metrics we are not exposing:
# traps, faults and forks.
ctxsw, intrs, soft_intrs, syscalls, traps, faults, forks = \
cext.cpu_stats()
with open('/proc/stat', 'rb') as f:
for line in f:
if line.startswith(b'intr'):
intrs = int(line.split()[1])
elif OPENBSD:
# Note: the C ext is returning some metrics we are not exposing:
# traps, faults and forks.
ctxsw, intrs, soft_intrs, syscalls, traps, faults, forks = \
cext.cpu_stats()
return _common.scpustats(ctxsw, intrs, soft_intrs, syscalls)
if FREEBSD:
def cpu_freq():
"""Return frequency metrics for CPUs. As of Dec 2018 only
CPU 0 appears to be supported by FreeBSD and all other cores
match the frequency of CPU 0.
"""
ret = []
num_cpus = cpu_count_logical()
for cpu in range(num_cpus):
try:
current, available_freq = cext.cpu_freq(cpu)
except NotImplementedError:
continue
if available_freq:
try:
min_freq = int(available_freq.split(" ")[-1].split("/")[0])
except (IndexError, ValueError):
min_freq = None
try:
max_freq = int(available_freq.split(" ")[0].split("/")[0])
except (IndexError, ValueError):
max_freq = None
ret.append(_common.scpufreq(current, min_freq, max_freq))
return ret
elif OPENBSD:
def cpu_freq():
curr = float(cext.cpu_freq())
return [_common.scpufreq(curr, 0.0, 0.0)]
# =====================================================================
# --- disks
# =====================================================================
def disk_partitions(all=False):
"""Return mounted disk partitions as a list of namedtuples.
'all' argument is ignored, see:
https://github.com/giampaolo/psutil/issues/906
"""
retlist = []
partitions = cext.disk_partitions()
for partition in partitions:
device, mountpoint, fstype, opts = partition
maxfile = maxpath = None # set later
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts,
maxfile, maxpath)
retlist.append(ntuple)
return retlist
disk_usage = _psposix.disk_usage
disk_io_counters = cext.disk_io_counters
# =====================================================================
# --- network
# =====================================================================
net_io_counters = cext.net_io_counters
net_if_addrs = cext_posix.net_if_addrs
def net_if_stats():
"""Get NIC stats (isup, duplex, speed, mtu)."""
names = net_io_counters().keys()
ret = {}
for name in names:
try:
mtu = cext_posix.net_if_mtu(name)
flags = cext_posix.net_if_flags(name)
duplex, speed = cext_posix.net_if_duplex_speed(name)
except OSError as err:
# https://github.com/giampaolo/psutil/issues/1279
if err.errno != errno.ENODEV:
raise
else:
if hasattr(_common, 'NicDuplex'):
duplex = _common.NicDuplex(duplex)
output_flags = ','.join(flags)
isup = 'running' in flags
ret[name] = _common.snicstats(isup, duplex, speed, mtu,
output_flags)
return ret
def net_connections(kind):
"""System-wide network connections."""
if kind not in _common.conn_tmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in conn_tmap])))
families, types = conn_tmap[kind]
ret = set()
if OPENBSD:
rawlist = cext.net_connections(-1, families, types)
elif NETBSD:
rawlist = cext.net_connections(-1)
else: # FreeBSD
rawlist = cext.net_connections()
for item in rawlist:
fd, fam, type, laddr, raddr, status, pid = item
if NETBSD or FREEBSD:
# OpenBSD implements filtering in C
if (fam not in families) or (type not in types):
continue
nt = conn_to_ntuple(fd, fam, type, laddr, raddr,
status, TCP_STATUSES, pid)
ret.add(nt)
return list(ret)
# =====================================================================
# --- sensors
# =====================================================================
if FREEBSD:
def sensors_battery():
"""Return battery info."""
try:
percent, minsleft, power_plugged = cext.sensors_battery()
except NotImplementedError:
# See: https://github.com/giampaolo/psutil/issues/1074
return None
power_plugged = power_plugged == 1
if power_plugged:
secsleft = _common.POWER_TIME_UNLIMITED
elif minsleft == -1:
secsleft = _common.POWER_TIME_UNKNOWN
else:
secsleft = minsleft * 60
return _common.sbattery(percent, secsleft, power_plugged)
def sensors_temperatures():
"""Return CPU cores temperatures if available, else an empty dict."""
ret = defaultdict(list)
num_cpus = cpu_count_logical()
for cpu in range(num_cpus):
try:
current, high = cext.sensors_cpu_temperature(cpu)
if high <= 0:
high = None
name = "Core %s" % cpu
ret["coretemp"].append(
_common.shwtemp(name, current, high, high))
except NotImplementedError:
pass
return ret
# =====================================================================
# --- other system functions
# =====================================================================
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
return cext.boot_time()
def users():
"""Return currently connected users as a list of namedtuples."""
retlist = []
rawlist = cext.users()
for item in rawlist:
user, tty, hostname, tstamp, pid = item
if pid == -1:
assert OPENBSD
pid = None
if tty == '~':
continue # reboot or shutdown
nt = _common.suser(user, tty or None, hostname, tstamp, pid)
retlist.append(nt)
return retlist
# =====================================================================
# --- processes
# =====================================================================
@memoize
def _pid_0_exists():
try:
Process(0).name()
except NoSuchProcess:
return False
except AccessDenied:
return True
else:
return True
def pids():
"""Returns a list of PIDs currently running on the system."""
ret = cext.pids()
if OPENBSD and (0 not in ret) and _pid_0_exists():
# On OpenBSD the kernel does not return PID 0 (neither does
# ps) but it's actually querable (Process(0) will succeed).
ret.insert(0, 0)
return ret
if OPENBSD or NETBSD:
def pid_exists(pid):
"""Return True if pid exists."""
exists = _psposix.pid_exists(pid)
if not exists:
# We do this because _psposix.pid_exists() lies in case of
# zombie processes.
return pid in pids()
else:
return True
else:
pid_exists = _psposix.pid_exists
def is_zombie(pid):
try:
st = cext.proc_oneshot_info(pid)[kinfo_proc_map['status']]
return PROC_STATUSES.get(st) == _common.STATUS_ZOMBIE
except Exception:
return False
def wrap_exceptions(fun):
"""Decorator which translates bare OSError exceptions into
NoSuchProcess and AccessDenied.
"""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except ProcessLookupError:
if is_zombie(self.pid):
raise ZombieProcess(self.pid, self._name, self._ppid)
else:
raise NoSuchProcess(self.pid, self._name)
except PermissionError:
raise AccessDenied(self.pid, self._name)
except OSError:
if self.pid == 0:
if 0 in pids():
raise AccessDenied(self.pid, self._name)
else:
raise
raise
return wrapper
@contextlib.contextmanager
def wrap_exceptions_procfs(inst):
"""Same as above, for routines relying on reading /proc fs."""
try:
yield
except (ProcessLookupError, FileNotFoundError):
# ENOENT (no such file or directory) gets raised on open().
# ESRCH (no such process) can get raised on read() if
# process is gone in meantime.
if is_zombie(inst.pid):
raise ZombieProcess(inst.pid, inst._name, inst._ppid)
else:
raise NoSuchProcess(inst.pid, inst._name)
except PermissionError:
raise AccessDenied(inst.pid, inst._name)
class Process(object):
"""Wrapper class around underlying C implementation."""
__slots__ = ["pid", "_name", "_ppid", "_cache"]
def __init__(self, pid):
self.pid = pid
self._name = None
self._ppid = None
def _assert_alive(self):
"""Raise NSP if the process disappeared on us."""
# For those C function who do not raise NSP, possibly returning
# incorrect or incomplete result.
cext.proc_name(self.pid)
@wrap_exceptions
@memoize_when_activated
def oneshot(self):
"""Retrieves multiple process info in one shot as a raw tuple."""
ret = cext.proc_oneshot_info(self.pid)
assert len(ret) == len(kinfo_proc_map)
return ret
def oneshot_enter(self):
self.oneshot.cache_activate(self)
def oneshot_exit(self):
self.oneshot.cache_deactivate(self)
@wrap_exceptions
def name(self):
name = self.oneshot()[kinfo_proc_map['name']]
return name if name is not None else cext.proc_name(self.pid)
@wrap_exceptions
def exe(self):
if FREEBSD:
if self.pid == 0:
return '' # else NSP
return cext.proc_exe(self.pid)
elif NETBSD:
if self.pid == 0:
# /proc/0 dir exists but /proc/0/exe doesn't
return ""
with wrap_exceptions_procfs(self):
return os.readlink("/proc/%s/exe" % self.pid)
else:
# OpenBSD: exe cannot be determined; references:
# https://chromium.googlesource.com/chromium/src/base/+/
# master/base_paths_posix.cc
# We try our best guess by using which against the first
# cmdline arg (may return None).
cmdline = self.cmdline()
if cmdline:
return which(cmdline[0]) or ""
else:
return ""
@wrap_exceptions
def cmdline(self):
if OPENBSD and self.pid == 0:
return [] # ...else it crashes
elif NETBSD:
# XXX - most of the times the underlying sysctl() call on Net
# and Open BSD returns a truncated string.
# Also /proc/pid/cmdline behaves the same so it looks
# like this is a kernel bug.
try:
return cext.proc_cmdline(self.pid)
except OSError as err:
if err.errno == errno.EINVAL:
if is_zombie(self.pid):
raise ZombieProcess(self.pid, self._name, self._ppid)
elif not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name, self._ppid)
else:
# XXX: this happens with unicode tests. It means the C
# routine is unable to decode invalid unicode chars.
return []
else:
raise
else:
return cext.proc_cmdline(self.pid)
@wrap_exceptions
def environ(self):
return cext.proc_environ(self.pid)
@wrap_exceptions
def terminal(self):
tty_nr = self.oneshot()[kinfo_proc_map['ttynr']]
tmap = _psposix.get_terminal_map()
try:
return tmap[tty_nr]
except KeyError:
return None
@wrap_exceptions
def ppid(self):
self._ppid = self.oneshot()[kinfo_proc_map['ppid']]
return self._ppid
@wrap_exceptions
def uids(self):
rawtuple = self.oneshot()
return _common.puids(
rawtuple[kinfo_proc_map['real_uid']],
rawtuple[kinfo_proc_map['effective_uid']],
rawtuple[kinfo_proc_map['saved_uid']])
@wrap_exceptions
def gids(self):
rawtuple = self.oneshot()
return _common.pgids(
rawtuple[kinfo_proc_map['real_gid']],
rawtuple[kinfo_proc_map['effective_gid']],
rawtuple[kinfo_proc_map['saved_gid']])
@wrap_exceptions
def cpu_times(self):
rawtuple = self.oneshot()
return _common.pcputimes(
rawtuple[kinfo_proc_map['user_time']],
rawtuple[kinfo_proc_map['sys_time']],
rawtuple[kinfo_proc_map['ch_user_time']],
rawtuple[kinfo_proc_map['ch_sys_time']])
if FREEBSD:
@wrap_exceptions
def cpu_num(self):
return self.oneshot()[kinfo_proc_map['cpunum']]
@wrap_exceptions
def memory_info(self):
rawtuple = self.oneshot()
return pmem(
rawtuple[kinfo_proc_map['rss']],
rawtuple[kinfo_proc_map['vms']],
rawtuple[kinfo_proc_map['memtext']],
rawtuple[kinfo_proc_map['memdata']],
rawtuple[kinfo_proc_map['memstack']])
memory_full_info = memory_info
@wrap_exceptions
def create_time(self):
return self.oneshot()[kinfo_proc_map['create_time']]
@wrap_exceptions
def num_threads(self):
if HAS_PROC_NUM_THREADS:
# FreeBSD
return cext.proc_num_threads(self.pid)
else:
return len(self.threads())
@wrap_exceptions
def num_ctx_switches(self):
rawtuple = self.oneshot()
return _common.pctxsw(
rawtuple[kinfo_proc_map['ctx_switches_vol']],
rawtuple[kinfo_proc_map['ctx_switches_unvol']])
@wrap_exceptions
def threads(self):
# Note: on OpenSBD this (/dev/mem) requires root access.
rawlist = cext.proc_threads(self.pid)
retlist = []
for thread_id, utime, stime in rawlist:
ntuple = _common.pthread(thread_id, utime, stime)
retlist.append(ntuple)
if OPENBSD:
self._assert_alive()
return retlist
@wrap_exceptions
def connections(self, kind='inet'):
if kind not in conn_tmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in conn_tmap])))
families, types = conn_tmap[kind]
ret = []
if NETBSD:
rawlist = cext.net_connections(self.pid)
elif OPENBSD:
rawlist = cext.net_connections(self.pid, families, types)
else: # FreeBSD
rawlist = cext.proc_connections(self.pid, families, types)
for item in rawlist:
fd, fam, type, laddr, raddr, status = item[:6]
if NETBSD:
# FreeBSD and OpenBSD implement filtering in C
if (fam not in families) or (type not in types):
continue
nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status,
TCP_STATUSES)
ret.append(nt)
self._assert_alive()
return ret
@wrap_exceptions
def wait(self, timeout=None):
return _psposix.wait_pid(self.pid, timeout, self._name)
@wrap_exceptions
def nice_get(self):
return cext_posix.getpriority(self.pid)
@wrap_exceptions
def nice_set(self, value):
return cext_posix.setpriority(self.pid, value)
@wrap_exceptions
def status(self):
code = self.oneshot()[kinfo_proc_map['status']]
# XXX is '?' legit? (we're not supposed to return it anyway)
return PROC_STATUSES.get(code, '?')
@wrap_exceptions
def io_counters(self):
rawtuple = self.oneshot()
return _common.pio(
rawtuple[kinfo_proc_map['read_io_count']],
rawtuple[kinfo_proc_map['write_io_count']],
-1,
-1)
@wrap_exceptions
def cwd(self):
"""Return process current working directory."""
# sometimes we get an empty string, in which case we turn
# it into None
if OPENBSD and self.pid == 0:
return "" # ...else it would raise EINVAL
elif NETBSD or HAS_PROC_OPEN_FILES:
# FreeBSD < 8 does not support functions based on
# kinfo_getfile() and kinfo_getvmmap()
return cext.proc_cwd(self.pid)
else:
raise NotImplementedError(
"supported only starting from FreeBSD 8" if
FREEBSD else "")
nt_mmap_grouped = namedtuple(
'mmap', 'path rss, private, ref_count, shadow_count')
nt_mmap_ext = namedtuple(
'mmap', 'addr, perms path rss, private, ref_count, shadow_count')
def _not_implemented(self):
raise NotImplementedError
# FreeBSD < 8 does not support functions based on kinfo_getfile()
# and kinfo_getvmmap()
if HAS_PROC_OPEN_FILES:
@wrap_exceptions
def open_files(self):
"""Return files opened by process as a list of namedtuples."""
rawlist = cext.proc_open_files(self.pid)
return [_common.popenfile(path, fd) for path, fd in rawlist]
else:
open_files = _not_implemented
# FreeBSD < 8 does not support functions based on kinfo_getfile()
# and kinfo_getvmmap()
if HAS_PROC_NUM_FDS:
@wrap_exceptions
def num_fds(self):
"""Return the number of file descriptors opened by this process."""
ret = cext.proc_num_fds(self.pid)
if NETBSD:
self._assert_alive()
return ret
else:
num_fds = _not_implemented
# --- FreeBSD only APIs
if FREEBSD:
@wrap_exceptions
def cpu_affinity_get(self):
return cext.proc_cpu_affinity_get(self.pid)
@wrap_exceptions
def cpu_affinity_set(self, cpus):
# Pre-emptively check if CPUs are valid because the C
# function has a weird behavior in case of invalid CPUs,
# see: https://github.com/giampaolo/psutil/issues/586
allcpus = tuple(range(len(per_cpu_times())))
for cpu in cpus:
if cpu not in allcpus:
raise ValueError("invalid CPU #%i (choose between %s)"
% (cpu, allcpus))
try:
cext.proc_cpu_affinity_set(self.pid, cpus)
except OSError as err:
# 'man cpuset_setaffinity' about EDEADLK:
# <<the call would leave a thread without a valid CPU to run
# on because the set does not overlap with the thread's
# anonymous mask>>
if err.errno in (errno.EINVAL, errno.EDEADLK):
for cpu in cpus:
if cpu not in allcpus:
raise ValueError(
"invalid CPU #%i (choose between %s)" % (
cpu, allcpus))
raise
@wrap_exceptions
def memory_maps(self):
return cext.proc_memory_maps(self.pid)
@wrap_exceptions
def rlimit(self, resource, limits=None):
if limits is None:
return cext.proc_getrlimit(self.pid, resource)
else:
if len(limits) != 2:
raise ValueError(
"second argument must be a (soft, hard) tuple, "
"got %s" % repr(limits))
soft, hard = limits
return cext.proc_setrlimit(self.pid, resource, soft, hard)

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""macOS platform implementation."""
import errno
import functools
import os
from collections import namedtuple
from . import _common
from . import _psposix
from . import _psutil_osx as cext
from . import _psutil_posix as cext_posix
from ._common import AccessDenied
from ._common import NoSuchProcess
from ._common import ZombieProcess
from ._common import conn_tmap
from ._common import conn_to_ntuple
from ._common import isfile_strict
from ._common import memoize_when_activated
from ._common import parse_environ_block
from ._common import usage_percent
from ._compat import PermissionError
from ._compat import ProcessLookupError
__extra__all__ = []
# =====================================================================
# --- globals
# =====================================================================
PAGESIZE = cext_posix.getpagesize()
AF_LINK = cext_posix.AF_LINK
TCP_STATUSES = {
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV,
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.TCPS_CLOSED: _common.CONN_CLOSE,
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
cext.TCPS_LISTEN: _common.CONN_LISTEN,
cext.TCPS_CLOSING: _common.CONN_CLOSING,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
}
PROC_STATUSES = {
cext.SIDL: _common.STATUS_IDLE,
cext.SRUN: _common.STATUS_RUNNING,
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SSTOP: _common.STATUS_STOPPED,
cext.SZOMB: _common.STATUS_ZOMBIE,
}
kinfo_proc_map = dict(
ppid=0,
ruid=1,
euid=2,
suid=3,
rgid=4,
egid=5,
sgid=6,
ttynr=7,
ctime=8,
status=9,
name=10,
)
pidtaskinfo_map = dict(
cpuutime=0,
cpustime=1,
rss=2,
vms=3,
pfaults=4,
pageins=5,
numthreads=6,
volctxsw=7,
)
# =====================================================================
# --- named tuples
# =====================================================================
# psutil.cpu_times()
scputimes = namedtuple('scputimes', ['user', 'nice', 'system', 'idle'])
# psutil.virtual_memory()
svmem = namedtuple(
'svmem', ['total', 'available', 'percent', 'used', 'free',
'active', 'inactive', 'wired'])
# psutil.Process.memory_info()
pmem = namedtuple('pmem', ['rss', 'vms', 'pfaults', 'pageins'])
# psutil.Process.memory_full_info()
pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', ))
# =====================================================================
# --- memory
# =====================================================================
def virtual_memory():
"""System virtual memory as a namedtuple."""
total, active, inactive, wired, free, speculative = cext.virtual_mem()
# This is how Zabbix calculate avail and used mem:
# https://github.com/zabbix/zabbix/blob/trunk/src/libs/zbxsysinfo/
# osx/memory.c
# Also see: https://github.com/giampaolo/psutil/issues/1277
avail = inactive + free
used = active + wired
# This is NOT how Zabbix calculates free mem but it matches "free"
# cmdline utility.
free -= speculative
percent = usage_percent((total - avail), total, round_=1)
return svmem(total, avail, percent, used, free,
active, inactive, wired)
def swap_memory():
"""Swap system memory as a (total, used, free, sin, sout) tuple."""
total, used, free, sin, sout = cext.swap_mem()
percent = usage_percent(used, total, round_=1)
return _common.sswap(total, used, free, percent, sin, sout)
# =====================================================================
# --- CPU
# =====================================================================
def cpu_times():
"""Return system CPU times as a namedtuple."""
user, nice, system, idle = cext.cpu_times()
return scputimes(user, nice, system, idle)
def per_cpu_times():
"""Return system CPU times as a named tuple"""
ret = []
for cpu_t in cext.per_cpu_times():
user, nice, system, idle = cpu_t
item = scputimes(user, nice, system, idle)
ret.append(item)
return ret
def cpu_count_logical():
"""Return the number of logical CPUs in the system."""
return cext.cpu_count_logical()
def cpu_count_cores():
"""Return the number of CPU cores in the system."""
return cext.cpu_count_cores()
def cpu_stats():
ctx_switches, interrupts, soft_interrupts, syscalls, traps = \
cext.cpu_stats()
return _common.scpustats(
ctx_switches, interrupts, soft_interrupts, syscalls)
def cpu_freq():
"""Return CPU frequency.
On macOS per-cpu frequency is not supported.
Also, the returned frequency never changes, see:
https://arstechnica.com/civis/viewtopic.php?f=19&t=465002
"""
curr, min_, max_ = cext.cpu_freq()
return [_common.scpufreq(curr, min_, max_)]
# =====================================================================
# --- disks
# =====================================================================
disk_usage = _psposix.disk_usage
disk_io_counters = cext.disk_io_counters
def disk_partitions(all=False):
"""Return mounted disk partitions as a list of namedtuples."""
retlist = []
partitions = cext.disk_partitions()
for partition in partitions:
device, mountpoint, fstype, opts = partition
if device == 'none':
device = ''
if not all:
if not os.path.isabs(device) or not os.path.exists(device):
continue
maxfile = maxpath = None # set later
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts,
maxfile, maxpath)
retlist.append(ntuple)
return retlist
# =====================================================================
# --- sensors
# =====================================================================
def sensors_battery():
"""Return battery information."""
try:
percent, minsleft, power_plugged = cext.sensors_battery()
except NotImplementedError:
# no power source - return None according to interface
return None
power_plugged = power_plugged == 1
if power_plugged:
secsleft = _common.POWER_TIME_UNLIMITED
elif minsleft == -1:
secsleft = _common.POWER_TIME_UNKNOWN
else:
secsleft = minsleft * 60
return _common.sbattery(percent, secsleft, power_plugged)
# =====================================================================
# --- network
# =====================================================================
net_io_counters = cext.net_io_counters
net_if_addrs = cext_posix.net_if_addrs
def net_connections(kind='inet'):
"""System-wide network connections."""
# Note: on macOS this will fail with AccessDenied unless
# the process is owned by root.
ret = []
for pid in pids():
try:
cons = Process(pid).connections(kind)
except NoSuchProcess:
continue
else:
if cons:
for c in cons:
c = list(c) + [pid]
ret.append(_common.sconn(*c))
return ret
def net_if_stats():
"""Get NIC stats (isup, duplex, speed, mtu)."""
names = net_io_counters().keys()
ret = {}
for name in names:
try:
mtu = cext_posix.net_if_mtu(name)
flags = cext_posix.net_if_flags(name)
duplex, speed = cext_posix.net_if_duplex_speed(name)
except OSError as err:
# https://github.com/giampaolo/psutil/issues/1279
if err.errno != errno.ENODEV:
raise
else:
if hasattr(_common, 'NicDuplex'):
duplex = _common.NicDuplex(duplex)
output_flags = ','.join(flags)
isup = 'running' in flags
ret[name] = _common.snicstats(isup, duplex, speed, mtu,
output_flags)
return ret
# =====================================================================
# --- other system functions
# =====================================================================
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
return cext.boot_time()
def users():
"""Return currently connected users as a list of namedtuples."""
retlist = []
rawlist = cext.users()
for item in rawlist:
user, tty, hostname, tstamp, pid = item
if tty == '~':
continue # reboot or shutdown
if not tstamp:
continue
nt = _common.suser(user, tty or None, hostname or None, tstamp, pid)
retlist.append(nt)
return retlist
# =====================================================================
# --- processes
# =====================================================================
def pids():
ls = cext.pids()
if 0 not in ls:
# On certain macOS versions pids() C doesn't return PID 0 but
# "ps" does and the process is querable via sysctl():
# https://travis-ci.org/giampaolo/psutil/jobs/309619941
try:
Process(0).create_time()
ls.insert(0, 0)
except NoSuchProcess:
pass
except AccessDenied:
ls.insert(0, 0)
return ls
pid_exists = _psposix.pid_exists
def is_zombie(pid):
try:
st = cext.proc_kinfo_oneshot(pid)[kinfo_proc_map['status']]
return st == cext.SZOMB
except Exception:
return False
def wrap_exceptions(fun):
"""Decorator which translates bare OSError exceptions into
NoSuchProcess and AccessDenied.
"""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except ProcessLookupError:
if is_zombie(self.pid):
raise ZombieProcess(self.pid, self._name, self._ppid)
else:
raise NoSuchProcess(self.pid, self._name)
except PermissionError:
raise AccessDenied(self.pid, self._name)
except cext.ZombieProcessError:
raise ZombieProcess(self.pid, self._name, self._ppid)
return wrapper
class Process(object):
"""Wrapper class around underlying C implementation."""
__slots__ = ["pid", "_name", "_ppid", "_cache"]
def __init__(self, pid):
self.pid = pid
self._name = None
self._ppid = None
@wrap_exceptions
@memoize_when_activated
def _get_kinfo_proc(self):
# Note: should work with all PIDs without permission issues.
ret = cext.proc_kinfo_oneshot(self.pid)
assert len(ret) == len(kinfo_proc_map)
return ret
@wrap_exceptions
@memoize_when_activated
def _get_pidtaskinfo(self):
# Note: should work for PIDs owned by user only.
ret = cext.proc_pidtaskinfo_oneshot(self.pid)
assert len(ret) == len(pidtaskinfo_map)
return ret
def oneshot_enter(self):
self._get_kinfo_proc.cache_activate(self)
self._get_pidtaskinfo.cache_activate(self)
def oneshot_exit(self):
self._get_kinfo_proc.cache_deactivate(self)
self._get_pidtaskinfo.cache_deactivate(self)
@wrap_exceptions
def name(self):
name = self._get_kinfo_proc()[kinfo_proc_map['name']]
return name if name is not None else cext.proc_name(self.pid)
@wrap_exceptions
def exe(self):
return cext.proc_exe(self.pid)
@wrap_exceptions
def cmdline(self):
return cext.proc_cmdline(self.pid)
@wrap_exceptions
def environ(self):
return parse_environ_block(cext.proc_environ(self.pid))
@wrap_exceptions
def ppid(self):
self._ppid = self._get_kinfo_proc()[kinfo_proc_map['ppid']]
return self._ppid
@wrap_exceptions
def cwd(self):
return cext.proc_cwd(self.pid)
@wrap_exceptions
def uids(self):
rawtuple = self._get_kinfo_proc()
return _common.puids(
rawtuple[kinfo_proc_map['ruid']],
rawtuple[kinfo_proc_map['euid']],
rawtuple[kinfo_proc_map['suid']])
@wrap_exceptions
def gids(self):
rawtuple = self._get_kinfo_proc()
return _common.puids(
rawtuple[kinfo_proc_map['rgid']],
rawtuple[kinfo_proc_map['egid']],
rawtuple[kinfo_proc_map['sgid']])
@wrap_exceptions
def terminal(self):
tty_nr = self._get_kinfo_proc()[kinfo_proc_map['ttynr']]
tmap = _psposix.get_terminal_map()
try:
return tmap[tty_nr]
except KeyError:
return None
@wrap_exceptions
def memory_info(self):
rawtuple = self._get_pidtaskinfo()
return pmem(
rawtuple[pidtaskinfo_map['rss']],
rawtuple[pidtaskinfo_map['vms']],
rawtuple[pidtaskinfo_map['pfaults']],
rawtuple[pidtaskinfo_map['pageins']],
)
@wrap_exceptions
def memory_full_info(self):
basic_mem = self.memory_info()
uss = cext.proc_memory_uss(self.pid)
return pfullmem(*basic_mem + (uss, ))
@wrap_exceptions
def cpu_times(self):
rawtuple = self._get_pidtaskinfo()
return _common.pcputimes(
rawtuple[pidtaskinfo_map['cpuutime']],
rawtuple[pidtaskinfo_map['cpustime']],
# children user / system times are not retrievable (set to 0)
0.0, 0.0)
@wrap_exceptions
def create_time(self):
return self._get_kinfo_proc()[kinfo_proc_map['ctime']]
@wrap_exceptions
def num_ctx_switches(self):
# Unvoluntary value seems not to be available;
# getrusage() numbers seems to confirm this theory.
# We set it to 0.
vol = self._get_pidtaskinfo()[pidtaskinfo_map['volctxsw']]
return _common.pctxsw(vol, 0)
@wrap_exceptions
def num_threads(self):
return self._get_pidtaskinfo()[pidtaskinfo_map['numthreads']]
@wrap_exceptions
def open_files(self):
if self.pid == 0:
return []
files = []
rawlist = cext.proc_open_files(self.pid)
for path, fd in rawlist:
if isfile_strict(path):
ntuple = _common.popenfile(path, fd)
files.append(ntuple)
return files
@wrap_exceptions
def connections(self, kind='inet'):
if kind not in conn_tmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in conn_tmap])))
families, types = conn_tmap[kind]
rawlist = cext.proc_connections(self.pid, families, types)
ret = []
for item in rawlist:
fd, fam, type, laddr, raddr, status = item
nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status,
TCP_STATUSES)
ret.append(nt)
return ret
@wrap_exceptions
def num_fds(self):
if self.pid == 0:
return 0
return cext.proc_num_fds(self.pid)
@wrap_exceptions
def wait(self, timeout=None):
return _psposix.wait_pid(self.pid, timeout, self._name)
@wrap_exceptions
def nice_get(self):
return cext_posix.getpriority(self.pid)
@wrap_exceptions
def nice_set(self, value):
return cext_posix.setpriority(self.pid, value)
@wrap_exceptions
def status(self):
code = self._get_kinfo_proc()[kinfo_proc_map['status']]
# XXX is '?' legit? (we're not supposed to return it anyway)
return PROC_STATUSES.get(code, '?')
@wrap_exceptions
def threads(self):
rawlist = cext.proc_threads(self.pid)
retlist = []
for thread_id, utime, stime in rawlist:
ntuple = _common.pthread(thread_id, utime, stime)
retlist.append(ntuple)
return retlist

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Routines common to all posix systems."""
import glob
import os
import signal
import sys
import time
from ._common import MACOS
from ._common import TimeoutExpired
from ._common import memoize
from ._common import sdiskusage
from ._common import usage_percent
from ._compat import PY3
from ._compat import ChildProcessError
from ._compat import FileNotFoundError
from ._compat import InterruptedError
from ._compat import PermissionError
from ._compat import ProcessLookupError
from ._compat import unicode
if MACOS:
from . import _psutil_osx
if sys.version_info >= (3, 4):
import enum
else:
enum = None
__all__ = ['pid_exists', 'wait_pid', 'disk_usage', 'get_terminal_map']
def pid_exists(pid):
"""Check whether pid exists in the current process table."""
if pid == 0:
# According to "man 2 kill" PID 0 has a special meaning:
# it refers to <<every process in the process group of the
# calling process>> so we don't want to go any further.
# If we get here it means this UNIX platform *does* have
# a process with id 0.
return True
try:
os.kill(pid, 0)
except ProcessLookupError:
return False
except PermissionError:
# EPERM clearly means there's a process to deny access to
return True
# According to "man 2 kill" possible error values are
# (EINVAL, EPERM, ESRCH)
else:
return True
# Python 3.5 signals enum (contributed by me ^^):
# https://bugs.python.org/issue21076
if enum is not None and hasattr(signal, "Signals"):
Negsignal = enum.IntEnum(
'Negsignal', dict([(x.name, -x.value) for x in signal.Signals]))
def negsig_to_enum(num):
"""Convert a negative signal value to an enum."""
try:
return Negsignal(num)
except ValueError:
return num
else: # pragma: no cover
def negsig_to_enum(num):
return num
def wait_pid(pid, timeout=None, proc_name=None,
_waitpid=os.waitpid,
_timer=getattr(time, 'monotonic', time.time),
_min=min,
_sleep=time.sleep,
_pid_exists=pid_exists):
"""Wait for a process PID to terminate.
If the process terminated normally by calling exit(3) or _exit(2),
or by returning from main(), the return value is the positive integer
passed to *exit().
If it was terminated by a signal it returns the negated value of the
signal which caused the termination (e.g. -SIGTERM).
If PID is not a children of os.getpid() (current process) just
wait until the process disappears and return None.
If PID does not exist at all return None immediately.
If *timeout* != None and process is still alive raise TimeoutExpired.
timeout=0 is also possible (either return immediately or raise).
"""
if pid <= 0:
raise ValueError("can't wait for PID 0") # see "man waitpid"
interval = 0.0001
flags = 0
if timeout is not None:
flags |= os.WNOHANG
stop_at = _timer() + timeout
def sleep(interval):
# Sleep for some time and return a new increased interval.
if timeout is not None:
if _timer() >= stop_at:
raise TimeoutExpired(timeout, pid=pid, name=proc_name)
_sleep(interval)
return _min(interval * 2, 0.04)
# See: https://linux.die.net/man/2/waitpid
while True:
try:
retpid, status = os.waitpid(pid, flags)
except InterruptedError:
interval = sleep(interval)
except ChildProcessError:
# This has two meanings:
# - PID is not a child of os.getpid() in which case
# we keep polling until it's gone
# - PID never existed in the first place
# In both cases we'll eventually return None as we
# can't determine its exit status code.
while _pid_exists(pid):
interval = sleep(interval)
return
else:
if retpid == 0:
# WNOHANG flag was used and PID is still running.
interval = sleep(interval)
continue
elif os.WIFEXITED(status):
# Process terminated normally by calling exit(3) or _exit(2),
# or by returning from main(). The return value is the
# positive integer passed to *exit().
return os.WEXITSTATUS(status)
elif os.WIFSIGNALED(status):
# Process exited due to a signal. Return the negative value
# of that signal.
return negsig_to_enum(-os.WTERMSIG(status))
# elif os.WIFSTOPPED(status):
# # Process was stopped via SIGSTOP or is being traced, and
# # waitpid() was called with WUNTRACED flag. PID is still
# # alive. From now on waitpid() will keep returning (0, 0)
# # until the process state doesn't change.
# # It may make sense to catch/enable this since stopped PIDs
# # ignore SIGTERM.
# interval = sleep(interval)
# continue
# elif os.WIFCONTINUED(status):
# # Process was resumed via SIGCONT and waitpid() was called
# # with WCONTINUED flag.
# interval = sleep(interval)
# continue
else:
# Should never happen.
raise ValueError("unknown process exit status %r" % status)
def disk_usage(path):
"""Return disk usage associated with path.
Note: UNIX usually reserves 5% disk space which is not accessible
by user. In this function "total" and "used" values reflect the
total and used disk space whereas "free" and "percent" represent
the "free" and "used percent" user disk space.
"""
if PY3:
st = os.statvfs(path)
else: # pragma: no cover
# os.statvfs() does not support unicode on Python 2:
# - https://github.com/giampaolo/psutil/issues/416
# - http://bugs.python.org/issue18695
try:
st = os.statvfs(path)
except UnicodeEncodeError:
if isinstance(path, unicode):
try:
path = path.encode(sys.getfilesystemencoding())
except UnicodeEncodeError:
pass
st = os.statvfs(path)
else:
raise
# Total space which is only available to root (unless changed
# at system level).
total = (st.f_blocks * st.f_frsize)
# Remaining free space usable by root.
avail_to_root = (st.f_bfree * st.f_frsize)
# Remaining free space usable by user.
avail_to_user = (st.f_bavail * st.f_frsize)
# Total space being used in general.
used = (total - avail_to_root)
if MACOS:
# see: https://github.com/giampaolo/psutil/pull/2152
used = _psutil_osx.disk_usage_used(path, used)
# Total space which is available to user (same as 'total' but
# for the user).
total_user = used + avail_to_user
# User usage percent compared to the total amount of space
# the user can use. This number would be higher if compared
# to root's because the user has less space (usually -5%).
usage_percent_user = usage_percent(used, total_user, round_=1)
# NB: the percentage is -5% than what shown by df due to
# reserved blocks that we are currently not considering:
# https://github.com/giampaolo/psutil/issues/829#issuecomment-223750462
return sdiskusage(
total=total, used=used, free=avail_to_user, percent=usage_percent_user)
@memoize
def get_terminal_map():
"""Get a map of device-id -> path as a dict.
Used by Process.terminal()
"""
ret = {}
ls = glob.glob('/dev/tty*') + glob.glob('/dev/pts/*')
for name in ls:
assert name not in ret, name
try:
ret[os.stat(name).st_rdev] = name
except FileNotFoundError:
pass
return ret

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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Sun OS Solaris platform implementation."""
import errno
import functools
import os
import socket
import subprocess
import sys
from collections import namedtuple
from socket import AF_INET
from . import _common
from . import _psposix
from . import _psutil_posix as cext_posix
from . import _psutil_sunos as cext
from ._common import AF_INET6
from ._common import AccessDenied
from ._common import NoSuchProcess
from ._common import ZombieProcess
from ._common import debug
from ._common import get_procfs_path
from ._common import isfile_strict
from ._common import memoize_when_activated
from ._common import sockfam_to_enum
from ._common import socktype_to_enum
from ._common import usage_percent
from ._compat import PY3
from ._compat import FileNotFoundError
from ._compat import PermissionError
from ._compat import ProcessLookupError
from ._compat import b
__extra__all__ = ["CONN_IDLE", "CONN_BOUND", "PROCFS_PATH"]
# =====================================================================
# --- globals
# =====================================================================
PAGE_SIZE = cext_posix.getpagesize()
AF_LINK = cext_posix.AF_LINK
IS_64_BIT = sys.maxsize > 2**32
CONN_IDLE = "IDLE"
CONN_BOUND = "BOUND"
PROC_STATUSES = {
cext.SSLEEP: _common.STATUS_SLEEPING,
cext.SRUN: _common.STATUS_RUNNING,
cext.SZOMB: _common.STATUS_ZOMBIE,
cext.SSTOP: _common.STATUS_STOPPED,
cext.SIDL: _common.STATUS_IDLE,
cext.SONPROC: _common.STATUS_RUNNING, # same as run
cext.SWAIT: _common.STATUS_WAITING,
}
TCP_STATUSES = {
cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED,
cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT,
cext.TCPS_SYN_RCVD: _common.CONN_SYN_RECV,
cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1,
cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2,
cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT,
cext.TCPS_CLOSED: _common.CONN_CLOSE,
cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT,
cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK,
cext.TCPS_LISTEN: _common.CONN_LISTEN,
cext.TCPS_CLOSING: _common.CONN_CLOSING,
cext.PSUTIL_CONN_NONE: _common.CONN_NONE,
cext.TCPS_IDLE: CONN_IDLE, # sunos specific
cext.TCPS_BOUND: CONN_BOUND, # sunos specific
}
proc_info_map = dict(
ppid=0,
rss=1,
vms=2,
create_time=3,
nice=4,
num_threads=5,
status=6,
ttynr=7,
uid=8,
euid=9,
gid=10,
egid=11)
# =====================================================================
# --- named tuples
# =====================================================================
# psutil.cpu_times()
scputimes = namedtuple('scputimes', ['user', 'system', 'idle', 'iowait'])
# psutil.cpu_times(percpu=True)
pcputimes = namedtuple('pcputimes',
['user', 'system', 'children_user', 'children_system'])
# psutil.virtual_memory()
svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free'])
# psutil.Process.memory_info()
pmem = namedtuple('pmem', ['rss', 'vms'])
pfullmem = pmem
# psutil.Process.memory_maps(grouped=True)
pmmap_grouped = namedtuple('pmmap_grouped',
['path', 'rss', 'anonymous', 'locked'])
# psutil.Process.memory_maps(grouped=False)
pmmap_ext = namedtuple(
'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields))
# =====================================================================
# --- memory
# =====================================================================
def virtual_memory():
"""Report virtual memory metrics."""
# we could have done this with kstat, but IMHO this is good enough
total = os.sysconf('SC_PHYS_PAGES') * PAGE_SIZE
# note: there's no difference on Solaris
free = avail = os.sysconf('SC_AVPHYS_PAGES') * PAGE_SIZE
used = total - free
percent = usage_percent(used, total, round_=1)
return svmem(total, avail, percent, used, free)
def swap_memory():
"""Report swap memory metrics."""
sin, sout = cext.swap_mem()
# XXX
# we are supposed to get total/free by doing so:
# http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/
# usr/src/cmd/swap/swap.c
# ...nevertheless I can't manage to obtain the same numbers as 'swap'
# cmdline utility, so let's parse its output (sigh!)
p = subprocess.Popen(['/usr/bin/env', 'PATH=/usr/sbin:/sbin:%s' %
os.environ['PATH'], 'swap', '-l'],
stdout=subprocess.PIPE)
stdout, _ = p.communicate()
if PY3:
stdout = stdout.decode(sys.stdout.encoding)
if p.returncode != 0:
raise RuntimeError("'swap -l' failed (retcode=%s)" % p.returncode)
lines = stdout.strip().split('\n')[1:]
if not lines:
raise RuntimeError('no swap device(s) configured')
total = free = 0
for line in lines:
line = line.split()
t, f = line[3:5]
total += int(int(t) * 512)
free += int(int(f) * 512)
used = total - free
percent = usage_percent(used, total, round_=1)
return _common.sswap(total, used, free, percent,
sin * PAGE_SIZE, sout * PAGE_SIZE)
# =====================================================================
# --- CPU
# =====================================================================
def cpu_times():
"""Return system-wide CPU times as a named tuple"""
ret = cext.per_cpu_times()
return scputimes(*[sum(x) for x in zip(*ret)])
def per_cpu_times():
"""Return system per-CPU times as a list of named tuples"""
ret = cext.per_cpu_times()
return [scputimes(*x) for x in ret]
def cpu_count_logical():
"""Return the number of logical CPUs in the system."""
try:
return os.sysconf("SC_NPROCESSORS_ONLN")
except ValueError:
# mimic os.cpu_count() behavior
return None
def cpu_count_cores():
"""Return the number of CPU cores in the system."""
return cext.cpu_count_cores()
def cpu_stats():
"""Return various CPU stats as a named tuple."""
ctx_switches, interrupts, syscalls, traps = cext.cpu_stats()
soft_interrupts = 0
return _common.scpustats(ctx_switches, interrupts, soft_interrupts,
syscalls)
# =====================================================================
# --- disks
# =====================================================================
disk_io_counters = cext.disk_io_counters
disk_usage = _psposix.disk_usage
def disk_partitions(all=False):
"""Return system disk partitions."""
# TODO - the filtering logic should be better checked so that
# it tries to reflect 'df' as much as possible
retlist = []
partitions = cext.disk_partitions()
for partition in partitions:
device, mountpoint, fstype, opts = partition
if device == 'none':
device = ''
if not all:
# Differently from, say, Linux, we don't have a list of
# common fs types so the best we can do, AFAIK, is to
# filter by filesystem having a total size > 0.
try:
if not disk_usage(mountpoint).total:
continue
except OSError as err:
# https://github.com/giampaolo/psutil/issues/1674
debug("skipping %r: %s" % (mountpoint, err))
continue
maxfile = maxpath = None # set later
ntuple = _common.sdiskpart(device, mountpoint, fstype, opts,
maxfile, maxpath)
retlist.append(ntuple)
return retlist
# =====================================================================
# --- network
# =====================================================================
net_io_counters = cext.net_io_counters
net_if_addrs = cext_posix.net_if_addrs
def net_connections(kind, _pid=-1):
"""Return socket connections. If pid == -1 return system-wide
connections (as opposed to connections opened by one process only).
Only INET sockets are returned (UNIX are not).
"""
cmap = _common.conn_tmap.copy()
if _pid == -1:
cmap.pop('unix', 0)
if kind not in cmap:
raise ValueError("invalid %r kind argument; choose between %s"
% (kind, ', '.join([repr(x) for x in cmap])))
families, types = _common.conn_tmap[kind]
rawlist = cext.net_connections(_pid)
ret = set()
for item in rawlist:
fd, fam, type_, laddr, raddr, status, pid = item
if fam not in families:
continue
if type_ not in types:
continue
# TODO: refactor and use _common.conn_to_ntuple.
if fam in (AF_INET, AF_INET6):
if laddr:
laddr = _common.addr(*laddr)
if raddr:
raddr = _common.addr(*raddr)
status = TCP_STATUSES[status]
fam = sockfam_to_enum(fam)
type_ = socktype_to_enum(type_)
if _pid == -1:
nt = _common.sconn(fd, fam, type_, laddr, raddr, status, pid)
else:
nt = _common.pconn(fd, fam, type_, laddr, raddr, status)
ret.add(nt)
return list(ret)
def net_if_stats():
"""Get NIC stats (isup, duplex, speed, mtu)."""
ret = cext.net_if_stats()
for name, items in ret.items():
isup, duplex, speed, mtu = items
if hasattr(_common, 'NicDuplex'):
duplex = _common.NicDuplex(duplex)
ret[name] = _common.snicstats(isup, duplex, speed, mtu, '')
return ret
# =====================================================================
# --- other system functions
# =====================================================================
def boot_time():
"""The system boot time expressed in seconds since the epoch."""
return cext.boot_time()
def users():
"""Return currently connected users as a list of namedtuples."""
retlist = []
rawlist = cext.users()
localhost = (':0.0', ':0')
for item in rawlist:
user, tty, hostname, tstamp, user_process, pid = item
# note: the underlying C function includes entries about
# system boot, run level and others. We might want
# to use them in the future.
if not user_process:
continue
if hostname in localhost:
hostname = 'localhost'
nt = _common.suser(user, tty, hostname, tstamp, pid)
retlist.append(nt)
return retlist
# =====================================================================
# --- processes
# =====================================================================
def pids():
"""Returns a list of PIDs currently running on the system."""
return [int(x) for x in os.listdir(b(get_procfs_path())) if x.isdigit()]
def pid_exists(pid):
"""Check for the existence of a unix pid."""
return _psposix.pid_exists(pid)
def wrap_exceptions(fun):
"""Call callable into a try/except clause and translate ENOENT,
EACCES and EPERM in NoSuchProcess or AccessDenied exceptions.
"""
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
try:
return fun(self, *args, **kwargs)
except (FileNotFoundError, ProcessLookupError):
# ENOENT (no such file or directory) gets raised on open().
# ESRCH (no such process) can get raised on read() if
# process is gone in meantime.
if not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name)
else:
raise ZombieProcess(self.pid, self._name, self._ppid)
except PermissionError:
raise AccessDenied(self.pid, self._name)
except OSError:
if self.pid == 0:
if 0 in pids():
raise AccessDenied(self.pid, self._name)
else:
raise
raise
return wrapper
class Process(object):
"""Wrapper class around underlying C implementation."""
__slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"]
def __init__(self, pid):
self.pid = pid
self._name = None
self._ppid = None
self._procfs_path = get_procfs_path()
def _assert_alive(self):
"""Raise NSP if the process disappeared on us."""
# For those C function who do not raise NSP, possibly returning
# incorrect or incomplete result.
os.stat('%s/%s' % (self._procfs_path, self.pid))
def oneshot_enter(self):
self._proc_name_and_args.cache_activate(self)
self._proc_basic_info.cache_activate(self)
self._proc_cred.cache_activate(self)
def oneshot_exit(self):
self._proc_name_and_args.cache_deactivate(self)
self._proc_basic_info.cache_deactivate(self)
self._proc_cred.cache_deactivate(self)
@wrap_exceptions
@memoize_when_activated
def _proc_name_and_args(self):
return cext.proc_name_and_args(self.pid, self._procfs_path)
@wrap_exceptions
@memoize_when_activated
def _proc_basic_info(self):
if self.pid == 0 and not \
os.path.exists('%s/%s/psinfo' % (self._procfs_path, self.pid)):
raise AccessDenied(self.pid)
ret = cext.proc_basic_info(self.pid, self._procfs_path)
assert len(ret) == len(proc_info_map)
return ret
@wrap_exceptions
@memoize_when_activated
def _proc_cred(self):
return cext.proc_cred(self.pid, self._procfs_path)
@wrap_exceptions
def name(self):
# note: max len == 15
return self._proc_name_and_args()[0]
@wrap_exceptions
def exe(self):
try:
return os.readlink(
"%s/%s/path/a.out" % (self._procfs_path, self.pid))
except OSError:
pass # continue and guess the exe name from the cmdline
# Will be guessed later from cmdline but we want to explicitly
# invoke cmdline here in order to get an AccessDenied
# exception if the user has not enough privileges.
self.cmdline()
return ""
@wrap_exceptions
def cmdline(self):
return self._proc_name_and_args()[1].split(' ')
@wrap_exceptions
def environ(self):
return cext.proc_environ(self.pid, self._procfs_path)
@wrap_exceptions
def create_time(self):
return self._proc_basic_info()[proc_info_map['create_time']]
@wrap_exceptions
def num_threads(self):
return self._proc_basic_info()[proc_info_map['num_threads']]
@wrap_exceptions
def nice_get(self):
# Note #1: getpriority(3) doesn't work for realtime processes.
# Psinfo is what ps uses, see:
# https://github.com/giampaolo/psutil/issues/1194
return self._proc_basic_info()[proc_info_map['nice']]
@wrap_exceptions
def nice_set(self, value):
if self.pid in (2, 3):
# Special case PIDs: internally setpriority(3) return ESRCH
# (no such process), no matter what.
# The process actually exists though, as it has a name,
# creation time, etc.
raise AccessDenied(self.pid, self._name)
return cext_posix.setpriority(self.pid, value)
@wrap_exceptions
def ppid(self):
self._ppid = self._proc_basic_info()[proc_info_map['ppid']]
return self._ppid
@wrap_exceptions
def uids(self):
try:
real, effective, saved, _, _, _ = self._proc_cred()
except AccessDenied:
real = self._proc_basic_info()[proc_info_map['uid']]
effective = self._proc_basic_info()[proc_info_map['euid']]
saved = None
return _common.puids(real, effective, saved)
@wrap_exceptions
def gids(self):
try:
_, _, _, real, effective, saved = self._proc_cred()
except AccessDenied:
real = self._proc_basic_info()[proc_info_map['gid']]
effective = self._proc_basic_info()[proc_info_map['egid']]
saved = None
return _common.puids(real, effective, saved)
@wrap_exceptions
def cpu_times(self):
try:
times = cext.proc_cpu_times(self.pid, self._procfs_path)
except OSError as err:
if err.errno == errno.EOVERFLOW and not IS_64_BIT:
# We may get here if we attempt to query a 64bit process
# with a 32bit python.
# Error originates from read() and also tools like "cat"
# fail in the same way (!).
# Since there simply is no way to determine CPU times we
# return 0.0 as a fallback. See:
# https://github.com/giampaolo/psutil/issues/857
times = (0.0, 0.0, 0.0, 0.0)
else:
raise
return _common.pcputimes(*times)
@wrap_exceptions
def cpu_num(self):
return cext.proc_cpu_num(self.pid, self._procfs_path)
@wrap_exceptions
def terminal(self):
procfs_path = self._procfs_path
hit_enoent = False
tty = wrap_exceptions(
self._proc_basic_info()[proc_info_map['ttynr']])
if tty != cext.PRNODEV:
for x in (0, 1, 2, 255):
try:
return os.readlink(
'%s/%d/path/%d' % (procfs_path, self.pid, x))
except FileNotFoundError:
hit_enoent = True
continue
if hit_enoent:
self._assert_alive()
@wrap_exceptions
def cwd(self):
# /proc/PID/path/cwd may not be resolved by readlink() even if
# it exists (ls shows it). If that's the case and the process
# is still alive return None (we can return None also on BSD).
# Reference: http://goo.gl/55XgO
procfs_path = self._procfs_path
try:
return os.readlink("%s/%s/path/cwd" % (procfs_path, self.pid))
except FileNotFoundError:
os.stat("%s/%s" % (procfs_path, self.pid)) # raise NSP or AD
return ""
@wrap_exceptions
def memory_info(self):
ret = self._proc_basic_info()
rss = ret[proc_info_map['rss']] * 1024
vms = ret[proc_info_map['vms']] * 1024
return pmem(rss, vms)
memory_full_info = memory_info
@wrap_exceptions
def status(self):
code = self._proc_basic_info()[proc_info_map['status']]
# XXX is '?' legit? (we're not supposed to return it anyway)
return PROC_STATUSES.get(code, '?')
@wrap_exceptions
def threads(self):
procfs_path = self._procfs_path
ret = []
tids = os.listdir('%s/%d/lwp' % (procfs_path, self.pid))
hit_enoent = False
for tid in tids:
tid = int(tid)
try:
utime, stime = cext.query_process_thread(
self.pid, tid, procfs_path)
except EnvironmentError as err:
if err.errno == errno.EOVERFLOW and not IS_64_BIT:
# We may get here if we attempt to query a 64bit process
# with a 32bit python.
# Error originates from read() and also tools like "cat"
# fail in the same way (!).
# Since there simply is no way to determine CPU times we
# return 0.0 as a fallback. See:
# https://github.com/giampaolo/psutil/issues/857
continue
# ENOENT == thread gone in meantime
if err.errno == errno.ENOENT:
hit_enoent = True
continue
raise
else:
nt = _common.pthread(tid, utime, stime)
ret.append(nt)
if hit_enoent:
self._assert_alive()
return ret
@wrap_exceptions
def open_files(self):
retlist = []
hit_enoent = False
procfs_path = self._procfs_path
pathdir = '%s/%d/path' % (procfs_path, self.pid)
for fd in os.listdir('%s/%d/fd' % (procfs_path, self.pid)):
path = os.path.join(pathdir, fd)
if os.path.islink(path):
try:
file = os.readlink(path)
except FileNotFoundError:
hit_enoent = True
continue
else:
if isfile_strict(file):
retlist.append(_common.popenfile(file, int(fd)))
if hit_enoent:
self._assert_alive()
return retlist
def _get_unix_sockets(self, pid):
"""Get UNIX sockets used by process by parsing 'pfiles' output."""
# TODO: rewrite this in C (...but the damn netstat source code
# does not include this part! Argh!!)
cmd = "pfiles %s" % pid
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if PY3:
stdout, stderr = [x.decode(sys.stdout.encoding)
for x in (stdout, stderr)]
if p.returncode != 0:
if 'permission denied' in stderr.lower():
raise AccessDenied(self.pid, self._name)
if 'no such process' in stderr.lower():
raise NoSuchProcess(self.pid, self._name)
raise RuntimeError("%r command error\n%s" % (cmd, stderr))
lines = stdout.split('\n')[2:]
for i, line in enumerate(lines):
line = line.lstrip()
if line.startswith('sockname: AF_UNIX'):
path = line.split(' ', 2)[2]
type = lines[i - 2].strip()
if type == 'SOCK_STREAM':
type = socket.SOCK_STREAM
elif type == 'SOCK_DGRAM':
type = socket.SOCK_DGRAM
else:
type = -1
yield (-1, socket.AF_UNIX, type, path, "", _common.CONN_NONE)
@wrap_exceptions
def connections(self, kind='inet'):
ret = net_connections(kind, _pid=self.pid)
# The underlying C implementation retrieves all OS connections
# and filters them by PID. At this point we can't tell whether
# an empty list means there were no connections for process or
# process is no longer active so we force NSP in case the PID
# is no longer there.
if not ret:
# will raise NSP if process is gone
os.stat('%s/%s' % (self._procfs_path, self.pid))
# UNIX sockets
if kind in ('all', 'unix'):
ret.extend([_common.pconn(*conn) for conn in
self._get_unix_sockets(self.pid)])
return ret
nt_mmap_grouped = namedtuple('mmap', 'path rss anon locked')
nt_mmap_ext = namedtuple('mmap', 'addr perms path rss anon locked')
@wrap_exceptions
def memory_maps(self):
def toaddr(start, end):
return '%s-%s' % (hex(start)[2:].strip('L'),
hex(end)[2:].strip('L'))
procfs_path = self._procfs_path
retlist = []
try:
rawlist = cext.proc_memory_maps(self.pid, procfs_path)
except OSError as err:
if err.errno == errno.EOVERFLOW and not IS_64_BIT:
# We may get here if we attempt to query a 64bit process
# with a 32bit python.
# Error originates from read() and also tools like "cat"
# fail in the same way (!).
# Since there simply is no way to determine CPU times we
# return 0.0 as a fallback. See:
# https://github.com/giampaolo/psutil/issues/857
return []
else:
raise
hit_enoent = False
for item in rawlist:
addr, addrsize, perm, name, rss, anon, locked = item
addr = toaddr(addr, addrsize)
if not name.startswith('['):
try:
name = os.readlink(
'%s/%s/path/%s' % (procfs_path, self.pid, name))
except OSError as err:
if err.errno == errno.ENOENT:
# sometimes the link may not be resolved by
# readlink() even if it exists (ls shows it).
# If that's the case we just return the
# unresolved link path.
# This seems an incosistency with /proc similar
# to: http://goo.gl/55XgO
name = '%s/%s/path/%s' % (procfs_path, self.pid, name)
hit_enoent = True
else:
raise
retlist.append((addr, perm, name, rss, anon, locked))
if hit_enoent:
self._assert_alive()
return retlist
@wrap_exceptions
def num_fds(self):
return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid)))
@wrap_exceptions
def num_ctx_switches(self):
return _common.pctxsw(
*cext.proc_num_ctx_switches(self.pid, self._procfs_path))
@wrap_exceptions
def wait(self, timeout=None):
return _psposix.wait_pid(self.pid, timeout, self._name)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Run unit tests. This is invoked by:
$ python -m psutil.tests
"""
from .runner import main
main()

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Unit test runner, providing new features on top of unittest module:
- colourized output
- parallel run (UNIX only)
- print failures/tracebacks on CTRL+C
- re-run failed tests only (make test-failed)
Invocation examples:
- make test
- make test-failed
Parallel:
- make test-parallel
- make test-process ARGS=--parallel
"""
from __future__ import print_function
import atexit
import optparse
import os
import sys
import textwrap
import time
import unittest
try:
import ctypes
except ImportError:
ctypes = None
try:
import concurrencytest # pip install concurrencytest
except ImportError:
concurrencytest = None
import psutil
from psutil._common import hilite
from psutil._common import print_color
from psutil._common import term_supports_colors
from psutil._compat import super
from psutil.tests import CI_TESTING
from psutil.tests import import_module_by_path
from psutil.tests import print_sysinfo
from psutil.tests import reap_children
from psutil.tests import safe_rmpath
VERBOSITY = 2
FAILED_TESTS_FNAME = '.failed-tests.txt'
NWORKERS = psutil.cpu_count() or 1
USE_COLORS = not CI_TESTING and term_supports_colors()
HERE = os.path.abspath(os.path.dirname(__file__))
loadTestsFromTestCase = unittest.defaultTestLoader.loadTestsFromTestCase
def cprint(msg, color, bold=False, file=None):
if file is None:
file = sys.stderr if color == 'red' else sys.stdout
if USE_COLORS:
print_color(msg, color, bold=bold, file=file)
else:
print(msg, file=file)
class TestLoader:
testdir = HERE
skip_files = ['test_memleaks.py']
if "WHEELHOUSE_UPLOADER_USERNAME" in os.environ:
skip_files.extend(['test_osx.py', 'test_linux.py', 'test_posix.py'])
def _get_testmods(self):
return [os.path.join(self.testdir, x)
for x in os.listdir(self.testdir)
if x.startswith('test_') and x.endswith('.py') and
x not in self.skip_files]
def _iter_testmod_classes(self):
"""Iterate over all test files in this directory and return
all TestCase classes in them.
"""
for path in self._get_testmods():
mod = import_module_by_path(path)
for name in dir(mod):
obj = getattr(mod, name)
if isinstance(obj, type) and \
issubclass(obj, unittest.TestCase):
yield obj
def all(self):
suite = unittest.TestSuite()
for obj in self._iter_testmod_classes():
test = loadTestsFromTestCase(obj)
suite.addTest(test)
return suite
def last_failed(self):
# ...from previously failed test run
suite = unittest.TestSuite()
if not os.path.isfile(FAILED_TESTS_FNAME):
return suite
with open(FAILED_TESTS_FNAME, 'rt') as f:
names = f.read().split()
for n in names:
test = unittest.defaultTestLoader.loadTestsFromName(n)
suite.addTest(test)
return suite
def from_name(self, name):
if name.endswith('.py'):
name = os.path.splitext(os.path.basename(name))[0]
return unittest.defaultTestLoader.loadTestsFromName(name)
class ColouredResult(unittest.TextTestResult):
def addSuccess(self, test):
unittest.TestResult.addSuccess(self, test)
cprint("OK", "green")
def addError(self, test, err):
unittest.TestResult.addError(self, test, err)
cprint("ERROR", "red", bold=True)
def addFailure(self, test, err):
unittest.TestResult.addFailure(self, test, err)
cprint("FAIL", "red")
def addSkip(self, test, reason):
unittest.TestResult.addSkip(self, test, reason)
cprint("skipped: %s" % reason.strip(), "brown")
def printErrorList(self, flavour, errors):
flavour = hilite(flavour, "red", bold=flavour == 'ERROR')
super().printErrorList(flavour, errors)
class ColouredTextRunner(unittest.TextTestRunner):
"""
A coloured text runner which also prints failed tests on KeyboardInterrupt
and save failed tests in a file so that they can be re-run.
"""
resultclass = ColouredResult if USE_COLORS else unittest.TextTestResult
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.failed_tnames = set()
def _makeResult(self):
# Store result instance so that it can be accessed on
# KeyboardInterrupt.
self.result = super()._makeResult()
return self.result
def _write_last_failed(self):
if self.failed_tnames:
with open(FAILED_TESTS_FNAME, 'wt') as f:
for tname in self.failed_tnames:
f.write(tname + '\n')
def _save_result(self, result):
if not result.wasSuccessful():
for t in result.errors + result.failures:
tname = t[0].id()
self.failed_tnames.add(tname)
def _run(self, suite):
try:
result = super().run(suite)
except (KeyboardInterrupt, SystemExit):
result = self.runner.result
result.printErrors()
raise sys.exit(1)
else:
self._save_result(result)
return result
def _exit(self, success):
if success:
cprint("SUCCESS", "green", bold=True)
safe_rmpath(FAILED_TESTS_FNAME)
sys.exit(0)
else:
cprint("FAILED", "red", bold=True)
self._write_last_failed()
sys.exit(1)
def run(self, suite):
result = self._run(suite)
self._exit(result.wasSuccessful())
class ParallelRunner(ColouredTextRunner):
@staticmethod
def _parallelize(suite):
def fdopen(fd, mode, *kwds):
stream = orig_fdopen(fd, mode)
atexit.register(stream.close)
return stream
# Monkey patch concurrencytest lib bug (fdopen() stream not closed).
# https://github.com/cgoldberg/concurrencytest/issues/11
orig_fdopen = os.fdopen
concurrencytest.os.fdopen = fdopen
forker = concurrencytest.fork_for_tests(NWORKERS)
return concurrencytest.ConcurrentTestSuite(suite, forker)
@staticmethod
def _split_suite(suite):
serial = unittest.TestSuite()
parallel = unittest.TestSuite()
for test in suite:
if test.countTestCases() == 0:
continue
elif isinstance(test, unittest.TestSuite):
test_class = test._tests[0].__class__
elif isinstance(test, unittest.TestCase):
test_class = test
else:
raise TypeError("can't recognize type %r" % test)
if getattr(test_class, '_serialrun', False):
serial.addTest(test)
else:
parallel.addTest(test)
return (serial, parallel)
def run(self, suite):
ser_suite, par_suite = self._split_suite(suite)
par_suite = self._parallelize(par_suite)
# run parallel
cprint("starting parallel tests using %s workers" % NWORKERS,
"green", bold=True)
t = time.time()
par = self._run(par_suite)
par_elapsed = time.time() - t
# At this point we should have N zombies (the workers), which
# will disappear with wait().
orphans = psutil.Process().children()
gone, alive = psutil.wait_procs(orphans, timeout=1)
if alive:
cprint("alive processes %s" % alive, "red")
reap_children()
# run serial
t = time.time()
ser = self._run(ser_suite)
ser_elapsed = time.time() - t
# print
if not par.wasSuccessful() and ser_suite.countTestCases() > 0:
par.printErrors() # print them again at the bottom
par_fails, par_errs, par_skips = map(len, (par.failures,
par.errors,
par.skipped))
ser_fails, ser_errs, ser_skips = map(len, (ser.failures,
ser.errors,
ser.skipped))
print(textwrap.dedent("""
+----------+----------+----------+----------+----------+----------+
| | total | failures | errors | skipped | time |
+----------+----------+----------+----------+----------+----------+
| parallel | %3s | %3s | %3s | %3s | %.2fs |
+----------+----------+----------+----------+----------+----------+
| serial | %3s | %3s | %3s | %3s | %.2fs |
+----------+----------+----------+----------+----------+----------+
""" % (par.testsRun, par_fails, par_errs, par_skips, par_elapsed,
ser.testsRun, ser_fails, ser_errs, ser_skips, ser_elapsed)))
print("Ran %s tests in %.3fs using %s workers" % (
par.testsRun + ser.testsRun, par_elapsed + ser_elapsed, NWORKERS))
ok = par.wasSuccessful() and ser.wasSuccessful()
self._exit(ok)
def get_runner(parallel=False):
def warn(msg):
cprint(msg + " Running serial tests instead.", "red")
if parallel:
if psutil.WINDOWS:
warn("Can't run parallel tests on Windows.")
elif concurrencytest is None:
warn("concurrencytest module is not installed.")
elif NWORKERS == 1:
warn("Only 1 CPU available.")
else:
return ParallelRunner(verbosity=VERBOSITY)
return ColouredTextRunner(verbosity=VERBOSITY)
# Used by test_*,py modules.
def run_from_name(name):
if CI_TESTING:
print_sysinfo()
suite = TestLoader().from_name(name)
runner = get_runner()
runner.run(suite)
def setup():
psutil._set_debug(True)
def main():
setup()
usage = "python3 -m psutil.tests [opts] [test-name]"
parser = optparse.OptionParser(usage=usage, description="run unit tests")
parser.add_option("--last-failed",
action="store_true", default=False,
help="only run last failed tests")
parser.add_option("--parallel",
action="store_true", default=False,
help="run tests in parallel")
opts, args = parser.parse_args()
if not opts.last_failed:
safe_rmpath(FAILED_TESTS_FNAME)
# loader
loader = TestLoader()
if args:
if len(args) > 1:
parser.print_usage()
return sys.exit(1)
else:
suite = loader.from_name(args[0])
elif opts.last_failed:
suite = loader.last_failed()
else:
suite = loader.all()
if CI_TESTING:
print_sysinfo()
runner = get_runner(opts.parallel)
runner.run(suite)
if __name__ == '__main__':
main()

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'
# Copyright (c) 2017, Arnon Yaari
# All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""AIX specific tests."""
import re
import unittest
import psutil
from psutil import AIX
from psutil.tests import PsutilTestCase
from psutil.tests import sh
@unittest.skipIf(not AIX, "AIX only")
class AIXSpecificTestCase(PsutilTestCase):
def test_virtual_memory(self):
out = sh('/usr/bin/svmon -O unit=KB')
re_pattern = r"memory\s*"
for field in ("size inuse free pin virtual available mmode").split():
re_pattern += r"(?P<%s>\S+)\s+" % (field,)
matchobj = re.search(re_pattern, out)
self.assertIsNotNone(
matchobj, "svmon command returned unexpected output")
KB = 1024
total = int(matchobj.group("size")) * KB
available = int(matchobj.group("available")) * KB
used = int(matchobj.group("inuse")) * KB
free = int(matchobj.group("free")) * KB
psutil_result = psutil.virtual_memory()
# TOLERANCE_SYS_MEM from psutil.tests is not enough. For some reason
# we're seeing differences of ~1.2 MB. 2 MB is still a good tolerance
# when compared to GBs.
TOLERANCE_SYS_MEM = 2 * KB * KB # 2 MB
self.assertEqual(psutil_result.total, total)
self.assertAlmostEqual(
psutil_result.used, used, delta=TOLERANCE_SYS_MEM)
self.assertAlmostEqual(
psutil_result.available, available, delta=TOLERANCE_SYS_MEM)
self.assertAlmostEqual(
psutil_result.free, free, delta=TOLERANCE_SYS_MEM)
def test_swap_memory(self):
out = sh('/usr/sbin/lsps -a')
# From the man page, "The size is given in megabytes" so we assume
# we'll always have 'MB' in the result
# TODO maybe try to use "swap -l" to check "used" too, but its units
# are not guaranteed to be "MB" so parsing may not be consistent
matchobj = re.search(r"(?P<space>\S+)\s+"
r"(?P<vol>\S+)\s+"
r"(?P<vg>\S+)\s+"
r"(?P<size>\d+)MB", out)
self.assertIsNotNone(
matchobj, "lsps command returned unexpected output")
total_mb = int(matchobj.group("size"))
MB = 1024 ** 2
psutil_result = psutil.swap_memory()
# we divide our result by MB instead of multiplying the lsps value by
# MB because lsps may round down, so we round down too
self.assertEqual(int(psutil_result.total / MB), total_mb)
def test_cpu_stats(self):
out = sh('/usr/bin/mpstat -a')
re_pattern = r"ALL\s*"
for field in ("min maj mpcs mpcr dev soft dec ph cs ics bound rq "
"push S3pull S3grd S0rd S1rd S2rd S3rd S4rd S5rd "
"sysc").split():
re_pattern += r"(?P<%s>\S+)\s+" % (field,)
matchobj = re.search(re_pattern, out)
self.assertIsNotNone(
matchobj, "mpstat command returned unexpected output")
# numbers are usually in the millions so 1000 is ok for tolerance
CPU_STATS_TOLERANCE = 1000
psutil_result = psutil.cpu_stats()
self.assertAlmostEqual(
psutil_result.ctx_switches,
int(matchobj.group("cs")),
delta=CPU_STATS_TOLERANCE)
self.assertAlmostEqual(
psutil_result.syscalls,
int(matchobj.group("sysc")),
delta=CPU_STATS_TOLERANCE)
self.assertAlmostEqual(
psutil_result.interrupts,
int(matchobj.group("dev")),
delta=CPU_STATS_TOLERANCE)
self.assertAlmostEqual(
psutil_result.soft_interrupts,
int(matchobj.group("soft")),
delta=CPU_STATS_TOLERANCE)
def test_cpu_count_logical(self):
out = sh('/usr/bin/mpstat -a')
mpstat_lcpu = int(re.search(r"lcpu=(\d+)", out).group(1))
psutil_lcpu = psutil.cpu_count(logical=True)
self.assertEqual(mpstat_lcpu, psutil_lcpu)
def test_net_if_addrs_names(self):
out = sh('/etc/ifconfig -l')
ifconfig_names = set(out.split())
psutil_names = set(psutil.net_if_addrs().keys())
self.assertSetEqual(ifconfig_names, psutil_names)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# TODO: (FreeBSD) add test for comparing connections with 'sockstat' cmd.
"""Tests specific to all BSD platforms."""
import datetime
import os
import re
import time
import unittest
import psutil
from psutil import BSD
from psutil import FREEBSD
from psutil import NETBSD
from psutil import OPENBSD
from psutil.tests import HAS_BATTERY
from psutil.tests import TOLERANCE_SYS_MEM
from psutil.tests import PsutilTestCase
from psutil.tests import retry_on_failure
from psutil.tests import sh
from psutil.tests import spawn_testproc
from psutil.tests import terminate
from psutil.tests import which
if BSD:
from psutil._psutil_posix import getpagesize
PAGESIZE = getpagesize()
# muse requires root privileges
MUSE_AVAILABLE = os.getuid() == 0 and which('muse')
else:
PAGESIZE = None
MUSE_AVAILABLE = False
def sysctl(cmdline):
"""Expects a sysctl command with an argument and parse the result
returning only the value of interest.
"""
result = sh("sysctl " + cmdline)
if FREEBSD:
result = result[result.find(": ") + 2:]
elif OPENBSD or NETBSD:
result = result[result.find("=") + 1:]
try:
return int(result)
except ValueError:
return result
def muse(field):
"""Thin wrapper around 'muse' cmdline utility."""
out = sh('muse')
for line in out.split('\n'):
if line.startswith(field):
break
else:
raise ValueError("line not found")
return int(line.split()[1])
# =====================================================================
# --- All BSD*
# =====================================================================
@unittest.skipIf(not BSD, "BSD only")
class BSDTestCase(PsutilTestCase):
"""Generic tests common to all BSD variants."""
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
@unittest.skipIf(NETBSD, "-o lstart doesn't work on NETBSD")
def test_process_create_time(self):
output = sh("ps -o lstart -p %s" % self.pid)
start_ps = output.replace('STARTED', '').strip()
start_psutil = psutil.Process(self.pid).create_time()
start_psutil = time.strftime("%a %b %e %H:%M:%S %Y",
time.localtime(start_psutil))
self.assertEqual(start_ps, start_psutil)
def test_disks(self):
# test psutil.disk_usage() and psutil.disk_partitions()
# against "df -a"
def df(path):
out = sh('df -k "%s"' % path).strip()
lines = out.split('\n')
lines.pop(0)
line = lines.pop(0)
dev, total, used, free = line.split()[:4]
if dev == 'none':
dev = ''
total = int(total) * 1024
used = int(used) * 1024
free = int(free) * 1024
return dev, total, used, free
for part in psutil.disk_partitions(all=False):
usage = psutil.disk_usage(part.mountpoint)
dev, total, used, free = df(part.mountpoint)
self.assertEqual(part.device, dev)
self.assertEqual(usage.total, total)
# 10 MB tolerance
if abs(usage.free - free) > 10 * 1024 * 1024:
raise self.fail("psutil=%s, df=%s" % (usage.free, free))
if abs(usage.used - used) > 10 * 1024 * 1024:
raise self.fail("psutil=%s, df=%s" % (usage.used, used))
@unittest.skipIf(not which('sysctl'), "sysctl cmd not available")
def test_cpu_count_logical(self):
syst = sysctl("hw.ncpu")
self.assertEqual(psutil.cpu_count(logical=True), syst)
@unittest.skipIf(not which('sysctl'), "sysctl cmd not available")
@unittest.skipIf(NETBSD, "skipped on NETBSD") # we check /proc/meminfo
def test_virtual_memory_total(self):
num = sysctl('hw.physmem')
self.assertEqual(num, psutil.virtual_memory().total)
@unittest.skipIf(not which('ifconfig'), "ifconfig cmd not available")
def test_net_if_stats(self):
for name, stats in psutil.net_if_stats().items():
try:
out = sh("ifconfig %s" % name)
except RuntimeError:
pass
else:
self.assertEqual(stats.isup, 'RUNNING' in out, msg=out)
if "mtu" in out:
self.assertEqual(stats.mtu,
int(re.findall(r'mtu (\d+)', out)[0]))
# =====================================================================
# --- FreeBSD
# =====================================================================
@unittest.skipIf(not FREEBSD, "FREEBSD only")
class FreeBSDPsutilTestCase(PsutilTestCase):
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
@retry_on_failure()
def test_memory_maps(self):
out = sh('procstat -v %s' % self.pid)
maps = psutil.Process(self.pid).memory_maps(grouped=False)
lines = out.split('\n')[1:]
while lines:
line = lines.pop()
fields = line.split()
_, start, stop, perms, res = fields[:5]
map = maps.pop()
self.assertEqual("%s-%s" % (start, stop), map.addr)
self.assertEqual(int(res), map.rss)
if not map.path.startswith('['):
self.assertEqual(fields[10], map.path)
def test_exe(self):
out = sh('procstat -b %s' % self.pid)
self.assertEqual(psutil.Process(self.pid).exe(),
out.split('\n')[1].split()[-1])
def test_cmdline(self):
out = sh('procstat -c %s' % self.pid)
self.assertEqual(' '.join(psutil.Process(self.pid).cmdline()),
' '.join(out.split('\n')[1].split()[2:]))
def test_uids_gids(self):
out = sh('procstat -s %s' % self.pid)
euid, ruid, suid, egid, rgid, sgid = out.split('\n')[1].split()[2:8]
p = psutil.Process(self.pid)
uids = p.uids()
gids = p.gids()
self.assertEqual(uids.real, int(ruid))
self.assertEqual(uids.effective, int(euid))
self.assertEqual(uids.saved, int(suid))
self.assertEqual(gids.real, int(rgid))
self.assertEqual(gids.effective, int(egid))
self.assertEqual(gids.saved, int(sgid))
@retry_on_failure()
def test_ctx_switches(self):
tested = []
out = sh('procstat -r %s' % self.pid)
p = psutil.Process(self.pid)
for line in out.split('\n'):
line = line.lower().strip()
if ' voluntary context' in line:
pstat_value = int(line.split()[-1])
psutil_value = p.num_ctx_switches().voluntary
self.assertEqual(pstat_value, psutil_value)
tested.append(None)
elif ' involuntary context' in line:
pstat_value = int(line.split()[-1])
psutil_value = p.num_ctx_switches().involuntary
self.assertEqual(pstat_value, psutil_value)
tested.append(None)
if len(tested) != 2:
raise RuntimeError("couldn't find lines match in procstat out")
@retry_on_failure()
def test_cpu_times(self):
tested = []
out = sh('procstat -r %s' % self.pid)
p = psutil.Process(self.pid)
for line in out.split('\n'):
line = line.lower().strip()
if 'user time' in line:
pstat_value = float('0.' + line.split()[-1].split('.')[-1])
psutil_value = p.cpu_times().user
self.assertEqual(pstat_value, psutil_value)
tested.append(None)
elif 'system time' in line:
pstat_value = float('0.' + line.split()[-1].split('.')[-1])
psutil_value = p.cpu_times().system
self.assertEqual(pstat_value, psutil_value)
tested.append(None)
if len(tested) != 2:
raise RuntimeError("couldn't find lines match in procstat out")
@unittest.skipIf(not FREEBSD, "FREEBSD only")
class FreeBSDSystemTestCase(PsutilTestCase):
@staticmethod
def parse_swapinfo():
# the last line is always the total
output = sh("swapinfo -k").splitlines()[-1]
parts = re.split(r'\s+', output)
if not parts:
raise ValueError("Can't parse swapinfo: %s" % output)
# the size is in 1k units, so multiply by 1024
total, used, free = (int(p) * 1024 for p in parts[1:4])
return total, used, free
def test_cpu_frequency_against_sysctl(self):
# Currently only cpu 0 is frequency is supported in FreeBSD
# All other cores use the same frequency.
sensor = "dev.cpu.0.freq"
try:
sysctl_result = int(sysctl(sensor))
except RuntimeError:
self.skipTest("frequencies not supported by kernel")
self.assertEqual(psutil.cpu_freq().current, sysctl_result)
sensor = "dev.cpu.0.freq_levels"
sysctl_result = sysctl(sensor)
# sysctl returns a string of the format:
# <freq_level_1>/<voltage_level_1> <freq_level_2>/<voltage_level_2>...
# Ordered highest available to lowest available.
max_freq = int(sysctl_result.split()[0].split("/")[0])
min_freq = int(sysctl_result.split()[-1].split("/")[0])
self.assertEqual(psutil.cpu_freq().max, max_freq)
self.assertEqual(psutil.cpu_freq().min, min_freq)
# --- virtual_memory(); tests against sysctl
@retry_on_failure()
def test_vmem_active(self):
syst = sysctl("vm.stats.vm.v_active_count") * PAGESIZE
self.assertAlmostEqual(psutil.virtual_memory().active, syst,
delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_inactive(self):
syst = sysctl("vm.stats.vm.v_inactive_count") * PAGESIZE
self.assertAlmostEqual(psutil.virtual_memory().inactive, syst,
delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_wired(self):
syst = sysctl("vm.stats.vm.v_wire_count") * PAGESIZE
self.assertAlmostEqual(psutil.virtual_memory().wired, syst,
delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_cached(self):
syst = sysctl("vm.stats.vm.v_cache_count") * PAGESIZE
self.assertAlmostEqual(psutil.virtual_memory().cached, syst,
delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_free(self):
syst = sysctl("vm.stats.vm.v_free_count") * PAGESIZE
self.assertAlmostEqual(psutil.virtual_memory().free, syst,
delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_buffers(self):
syst = sysctl("vfs.bufspace")
self.assertAlmostEqual(psutil.virtual_memory().buffers, syst,
delta=TOLERANCE_SYS_MEM)
# --- virtual_memory(); tests against muse
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
def test_muse_vmem_total(self):
num = muse('Total')
self.assertEqual(psutil.virtual_memory().total, num)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_active(self):
num = muse('Active')
self.assertAlmostEqual(psutil.virtual_memory().active, num,
delta=TOLERANCE_SYS_MEM)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_inactive(self):
num = muse('Inactive')
self.assertAlmostEqual(psutil.virtual_memory().inactive, num,
delta=TOLERANCE_SYS_MEM)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_wired(self):
num = muse('Wired')
self.assertAlmostEqual(psutil.virtual_memory().wired, num,
delta=TOLERANCE_SYS_MEM)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_cached(self):
num = muse('Cache')
self.assertAlmostEqual(psutil.virtual_memory().cached, num,
delta=TOLERANCE_SYS_MEM)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_free(self):
num = muse('Free')
self.assertAlmostEqual(psutil.virtual_memory().free, num,
delta=TOLERANCE_SYS_MEM)
@unittest.skipIf(not MUSE_AVAILABLE, "muse not installed")
@retry_on_failure()
def test_muse_vmem_buffers(self):
num = muse('Buffer')
self.assertAlmostEqual(psutil.virtual_memory().buffers, num,
delta=TOLERANCE_SYS_MEM)
def test_cpu_stats_ctx_switches(self):
self.assertAlmostEqual(psutil.cpu_stats().ctx_switches,
sysctl('vm.stats.sys.v_swtch'), delta=1000)
def test_cpu_stats_interrupts(self):
self.assertAlmostEqual(psutil.cpu_stats().interrupts,
sysctl('vm.stats.sys.v_intr'), delta=1000)
def test_cpu_stats_soft_interrupts(self):
self.assertAlmostEqual(psutil.cpu_stats().soft_interrupts,
sysctl('vm.stats.sys.v_soft'), delta=1000)
@retry_on_failure()
def test_cpu_stats_syscalls(self):
# pretty high tolerance but it looks like it's OK.
self.assertAlmostEqual(psutil.cpu_stats().syscalls,
sysctl('vm.stats.sys.v_syscall'), delta=200000)
# def test_cpu_stats_traps(self):
# self.assertAlmostEqual(psutil.cpu_stats().traps,
# sysctl('vm.stats.sys.v_trap'), delta=1000)
# --- swap memory
def test_swapmem_free(self):
total, used, free = self.parse_swapinfo()
self.assertAlmostEqual(
psutil.swap_memory().free, free, delta=TOLERANCE_SYS_MEM)
def test_swapmem_used(self):
total, used, free = self.parse_swapinfo()
self.assertAlmostEqual(
psutil.swap_memory().used, used, delta=TOLERANCE_SYS_MEM)
def test_swapmem_total(self):
total, used, free = self.parse_swapinfo()
self.assertAlmostEqual(
psutil.swap_memory().total, total, delta=TOLERANCE_SYS_MEM)
# --- others
def test_boot_time(self):
s = sysctl('sysctl kern.boottime')
s = s[s.find(" sec = ") + 7:]
s = s[:s.find(',')]
btime = int(s)
self.assertEqual(btime, psutil.boot_time())
# --- sensors_battery
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_sensors_battery(self):
def secs2hours(secs):
m, s = divmod(secs, 60)
h, m = divmod(m, 60)
return "%d:%02d" % (h, m)
out = sh("acpiconf -i 0")
fields = dict([(x.split('\t')[0], x.split('\t')[-1])
for x in out.split("\n")])
metrics = psutil.sensors_battery()
percent = int(fields['Remaining capacity:'].replace('%', ''))
remaining_time = fields['Remaining time:']
self.assertEqual(metrics.percent, percent)
if remaining_time == 'unknown':
self.assertEqual(metrics.secsleft, psutil.POWER_TIME_UNLIMITED)
else:
self.assertEqual(secs2hours(metrics.secsleft), remaining_time)
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_sensors_battery_against_sysctl(self):
self.assertEqual(psutil.sensors_battery().percent,
sysctl("hw.acpi.battery.life"))
self.assertEqual(psutil.sensors_battery().power_plugged,
sysctl("hw.acpi.acline") == 1)
secsleft = psutil.sensors_battery().secsleft
if secsleft < 0:
self.assertEqual(sysctl("hw.acpi.battery.time"), -1)
else:
self.assertEqual(secsleft, sysctl("hw.acpi.battery.time") * 60)
@unittest.skipIf(HAS_BATTERY, "has battery")
def test_sensors_battery_no_battery(self):
# If no battery is present one of these calls is supposed
# to fail, see:
# https://github.com/giampaolo/psutil/issues/1074
with self.assertRaises(RuntimeError):
sysctl("hw.acpi.battery.life")
sysctl("hw.acpi.battery.time")
sysctl("hw.acpi.acline")
self.assertIsNone(psutil.sensors_battery())
# --- sensors_temperatures
def test_sensors_temperatures_against_sysctl(self):
num_cpus = psutil.cpu_count(True)
for cpu in range(num_cpus):
sensor = "dev.cpu.%s.temperature" % cpu
# sysctl returns a string in the format 46.0C
try:
sysctl_result = int(float(sysctl(sensor)[:-1]))
except RuntimeError:
self.skipTest("temperatures not supported by kernel")
self.assertAlmostEqual(
psutil.sensors_temperatures()["coretemp"][cpu].current,
sysctl_result, delta=10)
sensor = "dev.cpu.%s.coretemp.tjmax" % cpu
sysctl_result = int(float(sysctl(sensor)[:-1]))
self.assertEqual(
psutil.sensors_temperatures()["coretemp"][cpu].high,
sysctl_result)
# =====================================================================
# --- OpenBSD
# =====================================================================
@unittest.skipIf(not OPENBSD, "OPENBSD only")
class OpenBSDTestCase(PsutilTestCase):
def test_boot_time(self):
s = sysctl('kern.boottime')
sys_bt = datetime.datetime.strptime(s, "%a %b %d %H:%M:%S %Y")
psutil_bt = datetime.datetime.fromtimestamp(psutil.boot_time())
self.assertEqual(sys_bt, psutil_bt)
# =====================================================================
# --- NetBSD
# =====================================================================
@unittest.skipIf(not NETBSD, "NETBSD only")
class NetBSDTestCase(PsutilTestCase):
@staticmethod
def parse_meminfo(look_for):
with open('/proc/meminfo', 'rt') as f:
for line in f:
if line.startswith(look_for):
return int(line.split()[1]) * 1024
raise ValueError("can't find %s" % look_for)
# --- virtual mem
def test_vmem_total(self):
self.assertEqual(
psutil.virtual_memory().total, self.parse_meminfo("MemTotal:"))
def test_vmem_free(self):
self.assertAlmostEqual(
psutil.virtual_memory().free, self.parse_meminfo("MemFree:"),
delta=TOLERANCE_SYS_MEM)
def test_vmem_buffers(self):
self.assertAlmostEqual(
psutil.virtual_memory().buffers, self.parse_meminfo("Buffers:"),
delta=TOLERANCE_SYS_MEM)
def test_vmem_shared(self):
self.assertAlmostEqual(
psutil.virtual_memory().shared, self.parse_meminfo("MemShared:"),
delta=TOLERANCE_SYS_MEM)
def test_vmem_cached(self):
self.assertAlmostEqual(
psutil.virtual_memory().cached, self.parse_meminfo("Cached:"),
delta=TOLERANCE_SYS_MEM)
# --- swap mem
def test_swapmem_total(self):
self.assertAlmostEqual(
psutil.swap_memory().total, self.parse_meminfo("SwapTotal:"),
delta=TOLERANCE_SYS_MEM)
def test_swapmem_free(self):
self.assertAlmostEqual(
psutil.swap_memory().free, self.parse_meminfo("SwapFree:"),
delta=TOLERANCE_SYS_MEM)
def test_swapmem_used(self):
smem = psutil.swap_memory()
self.assertEqual(smem.used, smem.total - smem.free)
# --- others
def test_cpu_stats_interrupts(self):
with open('/proc/stat', 'rb') as f:
for line in f:
if line.startswith(b'intr'):
interrupts = int(line.split()[1])
break
else:
raise ValueError("couldn't find line")
self.assertAlmostEqual(
psutil.cpu_stats().interrupts, interrupts, delta=1000)
def test_cpu_stats_ctx_switches(self):
with open('/proc/stat', 'rb') as f:
for line in f:
if line.startswith(b'ctxt'):
ctx_switches = int(line.split()[1])
break
else:
raise ValueError("couldn't find line")
self.assertAlmostEqual(
psutil.cpu_stats().ctx_switches, ctx_switches, delta=1000)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for net_connections() and Process.connections() APIs."""
import os
import socket
import textwrap
import unittest
from contextlib import closing
from socket import AF_INET
from socket import AF_INET6
from socket import SOCK_DGRAM
from socket import SOCK_STREAM
import psutil
from psutil import FREEBSD
from psutil import LINUX
from psutil import MACOS
from psutil import NETBSD
from psutil import OPENBSD
from psutil import POSIX
from psutil import SUNOS
from psutil import WINDOWS
from psutil._common import supports_ipv6
from psutil._compat import PY3
from psutil.tests import AF_UNIX
from psutil.tests import HAS_CONNECTIONS_UNIX
from psutil.tests import SKIP_SYSCONS
from psutil.tests import PsutilTestCase
from psutil.tests import bind_socket
from psutil.tests import bind_unix_socket
from psutil.tests import check_connection_ntuple
from psutil.tests import create_sockets
from psutil.tests import reap_children
from psutil.tests import retry_on_failure
from psutil.tests import serialrun
from psutil.tests import skip_on_access_denied
from psutil.tests import tcp_socketpair
from psutil.tests import unix_socketpair
from psutil.tests import wait_for_file
thisproc = psutil.Process()
SOCK_SEQPACKET = getattr(socket, "SOCK_SEQPACKET", object())
@serialrun
class ConnectionTestCase(PsutilTestCase):
def setUp(self):
if not (NETBSD or FREEBSD):
# process opens a UNIX socket to /var/log/run.
cons = thisproc.connections(kind='all')
assert not cons, cons
def tearDown(self):
if not (FREEBSD or NETBSD):
# Make sure we closed all resources.
# NetBSD opens a UNIX socket to /var/log/run.
cons = thisproc.connections(kind='all')
assert not cons, cons
def compare_procsys_connections(self, pid, proc_cons, kind='all'):
"""Given a process PID and its list of connections compare
those against system-wide connections retrieved via
psutil.net_connections.
"""
try:
sys_cons = psutil.net_connections(kind=kind)
except psutil.AccessDenied:
# On MACOS, system-wide connections are retrieved by iterating
# over all processes
if MACOS:
return
else:
raise
# Filter for this proc PID and exlucde PIDs from the tuple.
sys_cons = [c[:-1] for c in sys_cons if c.pid == pid]
sys_cons.sort()
proc_cons.sort()
self.assertEqual(proc_cons, sys_cons)
class TestBasicOperations(ConnectionTestCase):
@unittest.skipIf(SKIP_SYSCONS, "requires root")
def test_system(self):
with create_sockets():
for conn in psutil.net_connections(kind='all'):
check_connection_ntuple(conn)
def test_process(self):
with create_sockets():
for conn in psutil.Process().connections(kind='all'):
check_connection_ntuple(conn)
def test_invalid_kind(self):
self.assertRaises(ValueError, thisproc.connections, kind='???')
self.assertRaises(ValueError, psutil.net_connections, kind='???')
@serialrun
class TestUnconnectedSockets(ConnectionTestCase):
"""Tests sockets which are open but not connected to anything."""
def get_conn_from_sock(self, sock):
cons = thisproc.connections(kind='all')
smap = dict([(c.fd, c) for c in cons])
if NETBSD or FREEBSD:
# NetBSD opens a UNIX socket to /var/log/run
# so there may be more connections.
return smap[sock.fileno()]
else:
self.assertEqual(len(cons), 1)
if cons[0].fd != -1:
self.assertEqual(smap[sock.fileno()].fd, sock.fileno())
return cons[0]
def check_socket(self, sock):
"""Given a socket, makes sure it matches the one obtained
via psutil. It assumes this process created one connection
only (the one supposed to be checked).
"""
conn = self.get_conn_from_sock(sock)
check_connection_ntuple(conn)
# fd, family, type
if conn.fd != -1:
self.assertEqual(conn.fd, sock.fileno())
self.assertEqual(conn.family, sock.family)
# see: http://bugs.python.org/issue30204
self.assertEqual(
conn.type, sock.getsockopt(socket.SOL_SOCKET, socket.SO_TYPE))
# local address
laddr = sock.getsockname()
if not laddr and PY3 and isinstance(laddr, bytes):
# See: http://bugs.python.org/issue30205
laddr = laddr.decode()
if sock.family == AF_INET6:
laddr = laddr[:2]
self.assertEqual(conn.laddr, laddr)
# XXX Solaris can't retrieve system-wide UNIX sockets
if sock.family == AF_UNIX and HAS_CONNECTIONS_UNIX:
cons = thisproc.connections(kind='all')
self.compare_procsys_connections(os.getpid(), cons, kind='all')
return conn
def test_tcp_v4(self):
addr = ("127.0.0.1", 0)
with closing(bind_socket(AF_INET, SOCK_STREAM, addr=addr)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_LISTEN)
@unittest.skipIf(not supports_ipv6(), "IPv6 not supported")
def test_tcp_v6(self):
addr = ("::1", 0)
with closing(bind_socket(AF_INET6, SOCK_STREAM, addr=addr)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_LISTEN)
def test_udp_v4(self):
addr = ("127.0.0.1", 0)
with closing(bind_socket(AF_INET, SOCK_DGRAM, addr=addr)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_NONE)
@unittest.skipIf(not supports_ipv6(), "IPv6 not supported")
def test_udp_v6(self):
addr = ("::1", 0)
with closing(bind_socket(AF_INET6, SOCK_DGRAM, addr=addr)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_NONE)
@unittest.skipIf(not POSIX, 'POSIX only')
def test_unix_tcp(self):
testfn = self.get_testfn()
with closing(bind_unix_socket(testfn, type=SOCK_STREAM)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_NONE)
@unittest.skipIf(not POSIX, 'POSIX only')
def test_unix_udp(self):
testfn = self.get_testfn()
with closing(bind_unix_socket(testfn, type=SOCK_STREAM)) as sock:
conn = self.check_socket(sock)
assert not conn.raddr
self.assertEqual(conn.status, psutil.CONN_NONE)
@serialrun
class TestConnectedSocket(ConnectionTestCase):
"""Test socket pairs which are are actually connected to
each other.
"""
# On SunOS, even after we close() it, the server socket stays around
# in TIME_WAIT state.
@unittest.skipIf(SUNOS, "unreliable on SUONS")
def test_tcp(self):
addr = ("127.0.0.1", 0)
assert not thisproc.connections(kind='tcp4')
server, client = tcp_socketpair(AF_INET, addr=addr)
try:
cons = thisproc.connections(kind='tcp4')
self.assertEqual(len(cons), 2)
self.assertEqual(cons[0].status, psutil.CONN_ESTABLISHED)
self.assertEqual(cons[1].status, psutil.CONN_ESTABLISHED)
# May not be fast enough to change state so it stays
# commenteed.
# client.close()
# cons = thisproc.connections(kind='all')
# self.assertEqual(len(cons), 1)
# self.assertEqual(cons[0].status, psutil.CONN_CLOSE_WAIT)
finally:
server.close()
client.close()
@unittest.skipIf(not POSIX, 'POSIX only')
def test_unix(self):
testfn = self.get_testfn()
server, client = unix_socketpair(testfn)
try:
cons = thisproc.connections(kind='unix')
assert not (cons[0].laddr and cons[0].raddr)
assert not (cons[1].laddr and cons[1].raddr)
if NETBSD or FREEBSD:
# On NetBSD creating a UNIX socket will cause
# a UNIX connection to /var/run/log.
cons = [c for c in cons if c.raddr != '/var/run/log']
self.assertEqual(len(cons), 2, msg=cons)
if LINUX or FREEBSD or SUNOS or OPENBSD:
# remote path is never set
self.assertEqual(cons[0].raddr, "")
self.assertEqual(cons[1].raddr, "")
# one local address should though
self.assertEqual(testfn, cons[0].laddr or cons[1].laddr)
else:
# On other systems either the laddr or raddr
# of both peers are set.
self.assertEqual(cons[0].laddr or cons[1].laddr, testfn)
finally:
server.close()
client.close()
class TestFilters(ConnectionTestCase):
def test_filters(self):
def check(kind, families, types):
for conn in thisproc.connections(kind=kind):
self.assertIn(conn.family, families)
self.assertIn(conn.type, types)
if not SKIP_SYSCONS:
for conn in psutil.net_connections(kind=kind):
self.assertIn(conn.family, families)
self.assertIn(conn.type, types)
with create_sockets():
check('all',
[AF_INET, AF_INET6, AF_UNIX],
[SOCK_STREAM, SOCK_DGRAM, SOCK_SEQPACKET])
check('inet',
[AF_INET, AF_INET6],
[SOCK_STREAM, SOCK_DGRAM])
check('inet4',
[AF_INET],
[SOCK_STREAM, SOCK_DGRAM])
check('tcp',
[AF_INET, AF_INET6],
[SOCK_STREAM])
check('tcp4',
[AF_INET],
[SOCK_STREAM])
check('tcp6',
[AF_INET6],
[SOCK_STREAM])
check('udp',
[AF_INET, AF_INET6],
[SOCK_DGRAM])
check('udp4',
[AF_INET],
[SOCK_DGRAM])
check('udp6',
[AF_INET6],
[SOCK_DGRAM])
if HAS_CONNECTIONS_UNIX:
check('unix',
[AF_UNIX],
[SOCK_STREAM, SOCK_DGRAM, SOCK_SEQPACKET])
@skip_on_access_denied(only_if=MACOS)
def test_combos(self):
reap_children()
def check_conn(proc, conn, family, type, laddr, raddr, status, kinds):
all_kinds = ("all", "inet", "inet4", "inet6", "tcp", "tcp4",
"tcp6", "udp", "udp4", "udp6")
check_connection_ntuple(conn)
self.assertEqual(conn.family, family)
self.assertEqual(conn.type, type)
self.assertEqual(conn.laddr, laddr)
self.assertEqual(conn.raddr, raddr)
self.assertEqual(conn.status, status)
for kind in all_kinds:
cons = proc.connections(kind=kind)
if kind in kinds:
assert cons
else:
assert not cons, cons
# compare against system-wide connections
# XXX Solaris can't retrieve system-wide UNIX
# sockets.
if HAS_CONNECTIONS_UNIX:
self.compare_procsys_connections(proc.pid, [conn])
tcp_template = textwrap.dedent("""
import socket, time
s = socket.socket({family}, socket.SOCK_STREAM)
s.bind(('{addr}', 0))
s.listen(5)
with open('{testfn}', 'w') as f:
f.write(str(s.getsockname()[:2]))
time.sleep(60)
""")
udp_template = textwrap.dedent("""
import socket, time
s = socket.socket({family}, socket.SOCK_DGRAM)
s.bind(('{addr}', 0))
with open('{testfn}', 'w') as f:
f.write(str(s.getsockname()[:2]))
time.sleep(60)
""")
# must be relative on Windows
testfile = os.path.basename(self.get_testfn(dir=os.getcwd()))
tcp4_template = tcp_template.format(
family=int(AF_INET), addr="127.0.0.1", testfn=testfile)
udp4_template = udp_template.format(
family=int(AF_INET), addr="127.0.0.1", testfn=testfile)
tcp6_template = tcp_template.format(
family=int(AF_INET6), addr="::1", testfn=testfile)
udp6_template = udp_template.format(
family=int(AF_INET6), addr="::1", testfn=testfile)
# launch various subprocess instantiating a socket of various
# families and types to enrich psutil results
tcp4_proc = self.pyrun(tcp4_template)
tcp4_addr = eval(wait_for_file(testfile, delete=True))
udp4_proc = self.pyrun(udp4_template)
udp4_addr = eval(wait_for_file(testfile, delete=True))
if supports_ipv6():
tcp6_proc = self.pyrun(tcp6_template)
tcp6_addr = eval(wait_for_file(testfile, delete=True))
udp6_proc = self.pyrun(udp6_template)
udp6_addr = eval(wait_for_file(testfile, delete=True))
else:
tcp6_proc = None
udp6_proc = None
tcp6_addr = None
udp6_addr = None
for p in thisproc.children():
cons = p.connections()
self.assertEqual(len(cons), 1)
for conn in cons:
# TCP v4
if p.pid == tcp4_proc.pid:
check_conn(p, conn, AF_INET, SOCK_STREAM, tcp4_addr, (),
psutil.CONN_LISTEN,
("all", "inet", "inet4", "tcp", "tcp4"))
# UDP v4
elif p.pid == udp4_proc.pid:
check_conn(p, conn, AF_INET, SOCK_DGRAM, udp4_addr, (),
psutil.CONN_NONE,
("all", "inet", "inet4", "udp", "udp4"))
# TCP v6
elif p.pid == getattr(tcp6_proc, "pid", None):
check_conn(p, conn, AF_INET6, SOCK_STREAM, tcp6_addr, (),
psutil.CONN_LISTEN,
("all", "inet", "inet6", "tcp", "tcp6"))
# UDP v6
elif p.pid == getattr(udp6_proc, "pid", None):
check_conn(p, conn, AF_INET6, SOCK_DGRAM, udp6_addr, (),
psutil.CONN_NONE,
("all", "inet", "inet6", "udp", "udp6"))
def test_count(self):
with create_sockets():
# tcp
cons = thisproc.connections(kind='tcp')
self.assertEqual(len(cons), 2 if supports_ipv6() else 1)
for conn in cons:
self.assertIn(conn.family, (AF_INET, AF_INET6))
self.assertEqual(conn.type, SOCK_STREAM)
# tcp4
cons = thisproc.connections(kind='tcp4')
self.assertEqual(len(cons), 1)
self.assertEqual(cons[0].family, AF_INET)
self.assertEqual(cons[0].type, SOCK_STREAM)
# tcp6
if supports_ipv6():
cons = thisproc.connections(kind='tcp6')
self.assertEqual(len(cons), 1)
self.assertEqual(cons[0].family, AF_INET6)
self.assertEqual(cons[0].type, SOCK_STREAM)
# udp
cons = thisproc.connections(kind='udp')
self.assertEqual(len(cons), 2 if supports_ipv6() else 1)
for conn in cons:
self.assertIn(conn.family, (AF_INET, AF_INET6))
self.assertEqual(conn.type, SOCK_DGRAM)
# udp4
cons = thisproc.connections(kind='udp4')
self.assertEqual(len(cons), 1)
self.assertEqual(cons[0].family, AF_INET)
self.assertEqual(cons[0].type, SOCK_DGRAM)
# udp6
if supports_ipv6():
cons = thisproc.connections(kind='udp6')
self.assertEqual(len(cons), 1)
self.assertEqual(cons[0].family, AF_INET6)
self.assertEqual(cons[0].type, SOCK_DGRAM)
# inet
cons = thisproc.connections(kind='inet')
self.assertEqual(len(cons), 4 if supports_ipv6() else 2)
for conn in cons:
self.assertIn(conn.family, (AF_INET, AF_INET6))
self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM))
# inet6
if supports_ipv6():
cons = thisproc.connections(kind='inet6')
self.assertEqual(len(cons), 2)
for conn in cons:
self.assertEqual(conn.family, AF_INET6)
self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM))
# Skipped on BSD becayse by default the Python process
# creates a UNIX socket to '/var/run/log'.
if HAS_CONNECTIONS_UNIX and not (FREEBSD or NETBSD):
cons = thisproc.connections(kind='unix')
self.assertEqual(len(cons), 3)
for conn in cons:
self.assertEqual(conn.family, AF_UNIX)
self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM))
@unittest.skipIf(SKIP_SYSCONS, "requires root")
class TestSystemWideConnections(ConnectionTestCase):
"""Tests for net_connections()."""
def test_it(self):
def check(cons, families, types_):
for conn in cons:
self.assertIn(conn.family, families, msg=conn)
if conn.family != AF_UNIX:
self.assertIn(conn.type, types_, msg=conn)
check_connection_ntuple(conn)
with create_sockets():
from psutil._common import conn_tmap
for kind, groups in conn_tmap.items():
# XXX: SunOS does not retrieve UNIX sockets.
if kind == 'unix' and not HAS_CONNECTIONS_UNIX:
continue
families, types_ = groups
cons = psutil.net_connections(kind)
self.assertEqual(len(cons), len(set(cons)))
check(cons, families, types_)
@retry_on_failure()
def test_multi_sockets_procs(self):
# Creates multiple sub processes, each creating different
# sockets. For each process check that proc.connections()
# and net_connections() return the same results.
# This is done mainly to check whether net_connections()'s
# pid is properly set, see:
# https://github.com/giampaolo/psutil/issues/1013
with create_sockets() as socks:
expected = len(socks)
pids = []
times = 10
fnames = []
for _ in range(times):
fname = self.get_testfn()
fnames.append(fname)
src = textwrap.dedent("""\
import time, os
from psutil.tests import create_sockets
with create_sockets():
with open(r'%s', 'w') as f:
f.write("hello")
time.sleep(60)
""" % fname)
sproc = self.pyrun(src)
pids.append(sproc.pid)
# sync
for fname in fnames:
wait_for_file(fname)
syscons = [x for x in psutil.net_connections(kind='all') if x.pid
in pids]
for pid in pids:
self.assertEqual(len([x for x in syscons if x.pid == pid]),
expected)
p = psutil.Process(pid)
self.assertEqual(len(p.connections('all')), expected)
class TestMisc(PsutilTestCase):
def test_connection_constants(self):
ints = []
strs = []
for name in dir(psutil):
if name.startswith('CONN_'):
num = getattr(psutil, name)
str_ = str(num)
assert str_.isupper(), str_
self.assertNotIn(str, strs)
self.assertNotIn(num, ints)
ints.append(num)
strs.append(str_)
if SUNOS:
psutil.CONN_IDLE
psutil.CONN_BOUND
if WINDOWS:
psutil.CONN_DELETE_TCB
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Contracts tests. These tests mainly check API sanity in terms of
returned types and APIs availability.
Some of these are duplicates of tests test_system.py and test_process.py
"""
import errno
import multiprocessing
import os
import platform
import signal
import stat
import sys
import time
import traceback
import unittest
import psutil
from psutil import AIX
from psutil import BSD
from psutil import FREEBSD
from psutil import LINUX
from psutil import MACOS
from psutil import NETBSD
from psutil import OPENBSD
from psutil import OSX
from psutil import POSIX
from psutil import SUNOS
from psutil import WINDOWS
from psutil._compat import FileNotFoundError
from psutil._compat import long
from psutil._compat import range
from psutil._compat import unicode
from psutil.tests import APPVEYOR
from psutil.tests import CI_TESTING
from psutil.tests import GITHUB_ACTIONS
from psutil.tests import HAS_CPU_FREQ
from psutil.tests import HAS_NET_IO_COUNTERS
from psutil.tests import HAS_SENSORS_FANS
from psutil.tests import HAS_SENSORS_TEMPERATURES
from psutil.tests import PYPY
from psutil.tests import SKIP_SYSCONS
from psutil.tests import VALID_PROC_STATUSES
from psutil.tests import PsutilTestCase
from psutil.tests import check_connection_ntuple
from psutil.tests import create_sockets
from psutil.tests import enum
from psutil.tests import is_namedtuple
from psutil.tests import kernel_version
from psutil.tests import process_namespace
from psutil.tests import serialrun
# ===================================================================
# --- APIs availability
# ===================================================================
# Make sure code reflects what doc promises in terms of APIs
# availability.
class TestAvailConstantsAPIs(PsutilTestCase):
def test_PROCFS_PATH(self):
self.assertEqual(hasattr(psutil, "PROCFS_PATH"),
LINUX or SUNOS or AIX)
def test_win_priority(self):
ae = self.assertEqual
ae(hasattr(psutil, "ABOVE_NORMAL_PRIORITY_CLASS"), WINDOWS)
ae(hasattr(psutil, "BELOW_NORMAL_PRIORITY_CLASS"), WINDOWS)
ae(hasattr(psutil, "HIGH_PRIORITY_CLASS"), WINDOWS)
ae(hasattr(psutil, "IDLE_PRIORITY_CLASS"), WINDOWS)
ae(hasattr(psutil, "NORMAL_PRIORITY_CLASS"), WINDOWS)
ae(hasattr(psutil, "REALTIME_PRIORITY_CLASS"), WINDOWS)
def test_linux_ioprio_linux(self):
ae = self.assertEqual
ae(hasattr(psutil, "IOPRIO_CLASS_NONE"), LINUX)
ae(hasattr(psutil, "IOPRIO_CLASS_RT"), LINUX)
ae(hasattr(psutil, "IOPRIO_CLASS_BE"), LINUX)
ae(hasattr(psutil, "IOPRIO_CLASS_IDLE"), LINUX)
def test_linux_ioprio_windows(self):
ae = self.assertEqual
ae(hasattr(psutil, "IOPRIO_HIGH"), WINDOWS)
ae(hasattr(psutil, "IOPRIO_NORMAL"), WINDOWS)
ae(hasattr(psutil, "IOPRIO_LOW"), WINDOWS)
ae(hasattr(psutil, "IOPRIO_VERYLOW"), WINDOWS)
@unittest.skipIf(GITHUB_ACTIONS and LINUX,
"unsupported on GITHUB_ACTIONS + LINUX")
def test_rlimit(self):
ae = self.assertEqual
ae(hasattr(psutil, "RLIM_INFINITY"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_AS"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_CORE"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_CPU"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_DATA"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_FSIZE"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_MEMLOCK"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_NOFILE"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_NPROC"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_RSS"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_STACK"), LINUX or FREEBSD)
ae(hasattr(psutil, "RLIMIT_LOCKS"), LINUX)
if POSIX:
if kernel_version() >= (2, 6, 8):
ae(hasattr(psutil, "RLIMIT_MSGQUEUE"), LINUX)
if kernel_version() >= (2, 6, 12):
ae(hasattr(psutil, "RLIMIT_NICE"), LINUX)
if kernel_version() >= (2, 6, 12):
ae(hasattr(psutil, "RLIMIT_RTPRIO"), LINUX)
if kernel_version() >= (2, 6, 25):
ae(hasattr(psutil, "RLIMIT_RTTIME"), LINUX)
if kernel_version() >= (2, 6, 8):
ae(hasattr(psutil, "RLIMIT_SIGPENDING"), LINUX)
ae(hasattr(psutil, "RLIMIT_SWAP"), FREEBSD)
ae(hasattr(psutil, "RLIMIT_SBSIZE"), FREEBSD)
ae(hasattr(psutil, "RLIMIT_NPTS"), FREEBSD)
class TestAvailSystemAPIs(PsutilTestCase):
def test_win_service_iter(self):
self.assertEqual(hasattr(psutil, "win_service_iter"), WINDOWS)
def test_win_service_get(self):
self.assertEqual(hasattr(psutil, "win_service_get"), WINDOWS)
def test_cpu_freq(self):
self.assertEqual(hasattr(psutil, "cpu_freq"),
LINUX or MACOS or WINDOWS or FREEBSD or OPENBSD)
def test_sensors_temperatures(self):
self.assertEqual(
hasattr(psutil, "sensors_temperatures"), LINUX or FREEBSD)
def test_sensors_fans(self):
self.assertEqual(hasattr(psutil, "sensors_fans"), LINUX)
def test_battery(self):
self.assertEqual(hasattr(psutil, "sensors_battery"),
LINUX or WINDOWS or FREEBSD or MACOS)
class TestAvailProcessAPIs(PsutilTestCase):
def test_environ(self):
self.assertEqual(hasattr(psutil.Process, "environ"),
LINUX or MACOS or WINDOWS or AIX or SUNOS or
FREEBSD or OPENBSD or NETBSD)
def test_uids(self):
self.assertEqual(hasattr(psutil.Process, "uids"), POSIX)
def test_gids(self):
self.assertEqual(hasattr(psutil.Process, "uids"), POSIX)
def test_terminal(self):
self.assertEqual(hasattr(psutil.Process, "terminal"), POSIX)
def test_ionice(self):
self.assertEqual(hasattr(psutil.Process, "ionice"), LINUX or WINDOWS)
@unittest.skipIf(GITHUB_ACTIONS and LINUX,
"unsupported on GITHUB_ACTIONS + LINUX")
def test_rlimit(self):
self.assertEqual(hasattr(psutil.Process, "rlimit"), LINUX or FREEBSD)
def test_io_counters(self):
hasit = hasattr(psutil.Process, "io_counters")
self.assertEqual(hasit, not (MACOS or SUNOS))
def test_num_fds(self):
self.assertEqual(hasattr(psutil.Process, "num_fds"), POSIX)
def test_num_handles(self):
self.assertEqual(hasattr(psutil.Process, "num_handles"), WINDOWS)
def test_cpu_affinity(self):
self.assertEqual(hasattr(psutil.Process, "cpu_affinity"),
LINUX or WINDOWS or FREEBSD)
def test_cpu_num(self):
self.assertEqual(hasattr(psutil.Process, "cpu_num"),
LINUX or FREEBSD or SUNOS)
def test_memory_maps(self):
hasit = hasattr(psutil.Process, "memory_maps")
self.assertEqual(
hasit, False if OPENBSD or NETBSD or AIX or MACOS else True)
# ===================================================================
# --- API types
# ===================================================================
class TestSystemAPITypes(PsutilTestCase):
"""Check the return types of system related APIs.
Mainly we want to test we never return unicode on Python 2, see:
https://github.com/giampaolo/psutil/issues/1039
"""
@classmethod
def setUpClass(cls):
cls.proc = psutil.Process()
def assert_ntuple_of_nums(self, nt, type_=float, gezero=True):
assert is_namedtuple(nt)
for n in nt:
self.assertIsInstance(n, type_)
if gezero:
self.assertGreaterEqual(n, 0)
def test_cpu_times(self):
self.assert_ntuple_of_nums(psutil.cpu_times())
for nt in psutil.cpu_times(percpu=True):
self.assert_ntuple_of_nums(nt)
def test_cpu_percent(self):
self.assertIsInstance(psutil.cpu_percent(interval=None), float)
self.assertIsInstance(psutil.cpu_percent(interval=0.00001), float)
def test_cpu_times_percent(self):
self.assert_ntuple_of_nums(psutil.cpu_times_percent(interval=None))
self.assert_ntuple_of_nums(psutil.cpu_times_percent(interval=0.0001))
def test_cpu_count(self):
self.assertIsInstance(psutil.cpu_count(), int)
# TODO: remove this once 1892 is fixed
@unittest.skipIf(MACOS and platform.machine() == 'arm64',
"skipped due to #1892")
@unittest.skipIf(not HAS_CPU_FREQ, "not supported")
def test_cpu_freq(self):
if psutil.cpu_freq() is None:
raise self.skipTest("cpu_freq() returns None")
self.assert_ntuple_of_nums(psutil.cpu_freq(), type_=(float, int, long))
def test_disk_io_counters(self):
# Duplicate of test_system.py. Keep it anyway.
for k, v in psutil.disk_io_counters(perdisk=True).items():
self.assertIsInstance(k, str)
self.assert_ntuple_of_nums(v, type_=(int, long))
def test_disk_partitions(self):
# Duplicate of test_system.py. Keep it anyway.
for disk in psutil.disk_partitions():
self.assertIsInstance(disk.device, str)
self.assertIsInstance(disk.mountpoint, str)
self.assertIsInstance(disk.fstype, str)
self.assertIsInstance(disk.opts, str)
self.assertIsInstance(disk.maxfile, (int, type(None)))
self.assertIsInstance(disk.maxpath, (int, type(None)))
@unittest.skipIf(SKIP_SYSCONS, "requires root")
def test_net_connections(self):
with create_sockets():
ret = psutil.net_connections('all')
self.assertEqual(len(ret), len(set(ret)))
for conn in ret:
assert is_namedtuple(conn)
def test_net_if_addrs(self):
# Duplicate of test_system.py. Keep it anyway.
for ifname, addrs in psutil.net_if_addrs().items():
self.assertIsInstance(ifname, str)
for addr in addrs:
if enum is not None and not PYPY:
self.assertIsInstance(addr.family, enum.IntEnum)
else:
self.assertIsInstance(addr.family, int)
self.assertIsInstance(addr.address, str)
self.assertIsInstance(addr.netmask, (str, type(None)))
self.assertIsInstance(addr.broadcast, (str, type(None)))
def test_net_if_stats(self):
# Duplicate of test_system.py. Keep it anyway.
for ifname, info in psutil.net_if_stats().items():
self.assertIsInstance(ifname, str)
self.assertIsInstance(info.isup, bool)
if enum is not None:
self.assertIsInstance(info.duplex, enum.IntEnum)
else:
self.assertIsInstance(info.duplex, int)
self.assertIsInstance(info.speed, int)
self.assertIsInstance(info.mtu, int)
@unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
def test_net_io_counters(self):
# Duplicate of test_system.py. Keep it anyway.
for ifname, _ in psutil.net_io_counters(pernic=True).items():
self.assertIsInstance(ifname, str)
@unittest.skipIf(not HAS_SENSORS_FANS, "not supported")
def test_sensors_fans(self):
# Duplicate of test_system.py. Keep it anyway.
for name, units in psutil.sensors_fans().items():
self.assertIsInstance(name, str)
for unit in units:
self.assertIsInstance(unit.label, str)
self.assertIsInstance(unit.current, (float, int, type(None)))
@unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
def test_sensors_temperatures(self):
# Duplicate of test_system.py. Keep it anyway.
for name, units in psutil.sensors_temperatures().items():
self.assertIsInstance(name, str)
for unit in units:
self.assertIsInstance(unit.label, str)
self.assertIsInstance(unit.current, (float, int, type(None)))
self.assertIsInstance(unit.high, (float, int, type(None)))
self.assertIsInstance(unit.critical, (float, int, type(None)))
def test_boot_time(self):
# Duplicate of test_system.py. Keep it anyway.
self.assertIsInstance(psutil.boot_time(), float)
def test_users(self):
# Duplicate of test_system.py. Keep it anyway.
for user in psutil.users():
self.assertIsInstance(user.name, str)
self.assertIsInstance(user.terminal, (str, type(None)))
self.assertIsInstance(user.host, (str, type(None)))
self.assertIsInstance(user.pid, (int, type(None)))
class TestProcessWaitType(PsutilTestCase):
@unittest.skipIf(not POSIX, "not POSIX")
def test_negative_signal(self):
p = psutil.Process(self.spawn_testproc().pid)
p.terminate()
code = p.wait()
self.assertEqual(code, -signal.SIGTERM)
if enum is not None:
self.assertIsInstance(code, enum.IntEnum)
else:
self.assertIsInstance(code, int)
# ===================================================================
# --- Featch all processes test
# ===================================================================
def proc_info(pid):
tcase = PsutilTestCase()
def check_exception(exc, proc, name, ppid):
tcase.assertEqual(exc.pid, pid)
tcase.assertEqual(exc.name, name)
if isinstance(exc, psutil.ZombieProcess):
if exc.ppid is not None:
tcase.assertGreaterEqual(exc.ppid, 0)
tcase.assertEqual(exc.ppid, ppid)
elif isinstance(exc, psutil.NoSuchProcess):
tcase.assertProcessGone(proc)
str(exc)
def do_wait():
if pid != 0:
try:
proc.wait(0)
except psutil.Error as exc:
check_exception(exc, proc, name, ppid)
try:
proc = psutil.Process(pid)
d = proc.as_dict(['ppid', 'name'])
except psutil.NoSuchProcess:
return {}
name, ppid = d['name'], d['ppid']
info = {'pid': proc.pid}
ns = process_namespace(proc)
# We don't use oneshot() because in order not to fool
# check_exception() in case of NSP.
for fun, fun_name in ns.iter(ns.getters, clear_cache=False):
try:
info[fun_name] = fun()
except psutil.Error as exc:
check_exception(exc, proc, name, ppid)
continue
do_wait()
return info
@serialrun
class TestFetchAllProcesses(PsutilTestCase):
"""Test which iterates over all running processes and performs
some sanity checks against Process API's returned values.
Uses a process pool to get info about all processes.
"""
def setUp(self):
# Using a pool in a CI env may result in deadlock, see:
# https://github.com/giampaolo/psutil/issues/2104
if not CI_TESTING:
self.pool = multiprocessing.Pool()
def tearDown(self):
if not CI_TESTING:
self.pool.terminate()
self.pool.join()
def iter_proc_info(self):
# Fixes "can't pickle <function proc_info>: it's not the
# same object as test_contracts.proc_info".
from psutil.tests.test_contracts import proc_info
if not CI_TESTING:
return self.pool.imap_unordered(proc_info, psutil.pids())
else:
ls = []
for pid in psutil.pids():
ls.append(proc_info(pid))
return ls
def test_all(self):
failures = []
for info in self.iter_proc_info():
for name, value in info.items():
meth = getattr(self, name)
try:
meth(value, info)
except AssertionError:
s = '\n' + '=' * 70 + '\n'
s += "FAIL: test_%s pid=%s, ret=%s\n" % (
name, info['pid'], repr(value))
s += '-' * 70
s += "\n%s" % traceback.format_exc()
s = "\n".join((" " * 4) + i for i in s.splitlines()) + "\n"
failures.append(s)
else:
if value not in (0, 0.0, [], None, '', {}):
assert value, value
if failures:
raise self.fail(''.join(failures))
def cmdline(self, ret, info):
self.assertIsInstance(ret, list)
for part in ret:
self.assertIsInstance(part, str)
def exe(self, ret, info):
self.assertIsInstance(ret, (str, unicode))
self.assertEqual(ret.strip(), ret)
if ret:
if WINDOWS and not ret.endswith('.exe'):
return # May be "Registry", "MemCompression", ...
assert os.path.isabs(ret), ret
# Note: os.stat() may return False even if the file is there
# hence we skip the test, see:
# http://stackoverflow.com/questions/3112546/os-path-exists-lies
if POSIX and os.path.isfile(ret):
if hasattr(os, 'access') and hasattr(os, "X_OK"):
# XXX: may fail on MACOS
try:
assert os.access(ret, os.X_OK)
except AssertionError:
if os.path.exists(ret) and not CI_TESTING:
raise
def pid(self, ret, info):
self.assertIsInstance(ret, int)
self.assertGreaterEqual(ret, 0)
def ppid(self, ret, info):
self.assertIsInstance(ret, (int, long))
self.assertGreaterEqual(ret, 0)
def name(self, ret, info):
self.assertIsInstance(ret, (str, unicode))
if APPVEYOR and not ret and info['status'] == 'stopped':
return
# on AIX, "<exiting>" processes don't have names
if not AIX:
assert ret
def create_time(self, ret, info):
self.assertIsInstance(ret, float)
try:
self.assertGreaterEqual(ret, 0)
except AssertionError:
# XXX
if OPENBSD and info['status'] == psutil.STATUS_ZOMBIE:
pass
else:
raise
# this can't be taken for granted on all platforms
# self.assertGreaterEqual(ret, psutil.boot_time())
# make sure returned value can be pretty printed
# with strftime
time.strftime("%Y %m %d %H:%M:%S", time.localtime(ret))
def uids(self, ret, info):
assert is_namedtuple(ret)
for uid in ret:
self.assertIsInstance(uid, int)
self.assertGreaterEqual(uid, 0)
def gids(self, ret, info):
assert is_namedtuple(ret)
# note: testing all gids as above seems not to be reliable for
# gid == 30 (nodoby); not sure why.
for gid in ret:
self.assertIsInstance(gid, int)
if not MACOS and not NETBSD:
self.assertGreaterEqual(gid, 0)
def username(self, ret, info):
self.assertIsInstance(ret, str)
self.assertEqual(ret.strip(), ret)
assert ret.strip()
def status(self, ret, info):
self.assertIsInstance(ret, str)
assert ret
self.assertNotEqual(ret, '?') # XXX
self.assertIn(ret, VALID_PROC_STATUSES)
def io_counters(self, ret, info):
assert is_namedtuple(ret)
for field in ret:
self.assertIsInstance(field, (int, long))
if field != -1:
self.assertGreaterEqual(field, 0)
def ionice(self, ret, info):
if LINUX:
self.assertIsInstance(ret.ioclass, int)
self.assertIsInstance(ret.value, int)
self.assertGreaterEqual(ret.ioclass, 0)
self.assertGreaterEqual(ret.value, 0)
else: # Windows, Cygwin
choices = [
psutil.IOPRIO_VERYLOW,
psutil.IOPRIO_LOW,
psutil.IOPRIO_NORMAL,
psutil.IOPRIO_HIGH]
self.assertIsInstance(ret, int)
self.assertGreaterEqual(ret, 0)
self.assertIn(ret, choices)
def num_threads(self, ret, info):
self.assertIsInstance(ret, int)
if APPVEYOR and not ret and info['status'] == 'stopped':
return
self.assertGreaterEqual(ret, 1)
def threads(self, ret, info):
self.assertIsInstance(ret, list)
for t in ret:
assert is_namedtuple(t)
self.assertGreaterEqual(t.id, 0)
self.assertGreaterEqual(t.user_time, 0)
self.assertGreaterEqual(t.system_time, 0)
for field in t:
self.assertIsInstance(field, (int, float))
def cpu_times(self, ret, info):
assert is_namedtuple(ret)
for n in ret:
self.assertIsInstance(n, float)
self.assertGreaterEqual(n, 0)
# TODO: check ntuple fields
def cpu_percent(self, ret, info):
self.assertIsInstance(ret, float)
assert 0.0 <= ret <= 100.0, ret
def cpu_num(self, ret, info):
self.assertIsInstance(ret, int)
if FREEBSD and ret == -1:
return
self.assertGreaterEqual(ret, 0)
if psutil.cpu_count() == 1:
self.assertEqual(ret, 0)
self.assertIn(ret, list(range(psutil.cpu_count())))
def memory_info(self, ret, info):
assert is_namedtuple(ret)
for value in ret:
self.assertIsInstance(value, (int, long))
self.assertGreaterEqual(value, 0)
if WINDOWS:
self.assertGreaterEqual(ret.peak_wset, ret.wset)
self.assertGreaterEqual(ret.peak_paged_pool, ret.paged_pool)
self.assertGreaterEqual(ret.peak_nonpaged_pool, ret.nonpaged_pool)
self.assertGreaterEqual(ret.peak_pagefile, ret.pagefile)
def memory_full_info(self, ret, info):
assert is_namedtuple(ret)
total = psutil.virtual_memory().total
for name in ret._fields:
value = getattr(ret, name)
self.assertIsInstance(value, (int, long))
self.assertGreaterEqual(value, 0, msg=(name, value))
if LINUX or OSX and name in ('vms', 'data'):
# On Linux there are processes (e.g. 'goa-daemon') whose
# VMS is incredibly high for some reason.
continue
self.assertLessEqual(value, total, msg=(name, value, total))
if LINUX:
self.assertGreaterEqual(ret.pss, ret.uss)
def open_files(self, ret, info):
self.assertIsInstance(ret, list)
for f in ret:
self.assertIsInstance(f.fd, int)
self.assertIsInstance(f.path, str)
self.assertEqual(f.path.strip(), f.path)
if WINDOWS:
self.assertEqual(f.fd, -1)
elif LINUX:
self.assertIsInstance(f.position, int)
self.assertIsInstance(f.mode, str)
self.assertIsInstance(f.flags, int)
self.assertGreaterEqual(f.position, 0)
self.assertIn(f.mode, ('r', 'w', 'a', 'r+', 'a+'))
self.assertGreater(f.flags, 0)
elif BSD and not f.path:
# XXX see: https://github.com/giampaolo/psutil/issues/595
continue
assert os.path.isabs(f.path), f
try:
st = os.stat(f.path)
except FileNotFoundError:
pass
else:
assert stat.S_ISREG(st.st_mode), f
def num_fds(self, ret, info):
self.assertIsInstance(ret, int)
self.assertGreaterEqual(ret, 0)
def connections(self, ret, info):
with create_sockets():
self.assertEqual(len(ret), len(set(ret)))
for conn in ret:
assert is_namedtuple(conn)
check_connection_ntuple(conn)
def cwd(self, ret, info):
self.assertIsInstance(ret, (str, unicode))
self.assertEqual(ret.strip(), ret)
if ret:
assert os.path.isabs(ret), ret
try:
st = os.stat(ret)
except OSError as err:
if WINDOWS and err.errno in \
psutil._psplatform.ACCESS_DENIED_SET:
pass
# directory has been removed in mean time
elif err.errno != errno.ENOENT:
raise
else:
assert stat.S_ISDIR(st.st_mode)
def memory_percent(self, ret, info):
self.assertIsInstance(ret, float)
assert 0 <= ret <= 100, ret
def is_running(self, ret, info):
self.assertIsInstance(ret, bool)
def cpu_affinity(self, ret, info):
self.assertIsInstance(ret, list)
assert ret != [], ret
cpus = list(range(psutil.cpu_count()))
for n in ret:
self.assertIsInstance(n, int)
self.assertIn(n, cpus)
def terminal(self, ret, info):
self.assertIsInstance(ret, (str, type(None)))
if ret is not None:
assert os.path.isabs(ret), ret
assert os.path.exists(ret), ret
def memory_maps(self, ret, info):
for nt in ret:
self.assertIsInstance(nt.addr, str)
self.assertIsInstance(nt.perms, str)
self.assertIsInstance(nt.path, str)
for fname in nt._fields:
value = getattr(nt, fname)
if fname == 'path':
if not value.startswith(("[", "anon_inode:")):
assert os.path.isabs(nt.path), nt.path
# commented as on Linux we might get
# '/foo/bar (deleted)'
# assert os.path.exists(nt.path), nt.path
elif fname == 'addr':
assert value, repr(value)
elif fname == 'perms':
if not WINDOWS:
assert value, repr(value)
else:
self.assertIsInstance(value, (int, long))
self.assertGreaterEqual(value, 0)
def num_handles(self, ret, info):
self.assertIsInstance(ret, int)
self.assertGreaterEqual(ret, 0)
def nice(self, ret, info):
self.assertIsInstance(ret, int)
if POSIX:
assert -20 <= ret <= 20, ret
else:
priorities = [getattr(psutil, x) for x in dir(psutil)
if x.endswith('_PRIORITY_CLASS')]
self.assertIn(ret, priorities)
if sys.version_info > (3, 4):
self.assertIsInstance(ret, enum.IntEnum)
else:
self.assertIsInstance(ret, int)
def num_ctx_switches(self, ret, info):
assert is_namedtuple(ret)
for value in ret:
self.assertIsInstance(value, (int, long))
self.assertGreaterEqual(value, 0)
def rlimit(self, ret, info):
self.assertIsInstance(ret, tuple)
self.assertEqual(len(ret), 2)
self.assertGreaterEqual(ret[0], -1)
self.assertGreaterEqual(ret[1], -1)
def environ(self, ret, info):
self.assertIsInstance(ret, dict)
for k, v in ret.items():
self.assertIsInstance(k, str)
self.assertIsInstance(v, str)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Tests for detecting function memory leaks (typically the ones
implemented in C). It does so by calling a function many times and
checking whether process memory usage keeps increasing between
calls or over time.
Note that this may produce false positives (especially on Windows
for some reason).
PyPy appears to be completely unstable for this framework, probably
because of how its JIT handles memory, so tests are skipped.
"""
from __future__ import print_function
import functools
import os
import platform
import unittest
import psutil
import psutil._common
from psutil import LINUX
from psutil import MACOS
from psutil import OPENBSD
from psutil import POSIX
from psutil import SUNOS
from psutil import WINDOWS
from psutil._compat import ProcessLookupError
from psutil._compat import super
from psutil.tests import HAS_CPU_AFFINITY
from psutil.tests import HAS_CPU_FREQ
from psutil.tests import HAS_ENVIRON
from psutil.tests import HAS_IONICE
from psutil.tests import HAS_MEMORY_MAPS
from psutil.tests import HAS_NET_IO_COUNTERS
from psutil.tests import HAS_PROC_CPU_NUM
from psutil.tests import HAS_PROC_IO_COUNTERS
from psutil.tests import HAS_RLIMIT
from psutil.tests import HAS_SENSORS_BATTERY
from psutil.tests import HAS_SENSORS_FANS
from psutil.tests import HAS_SENSORS_TEMPERATURES
from psutil.tests import TestMemoryLeak
from psutil.tests import create_sockets
from psutil.tests import get_testfn
from psutil.tests import process_namespace
from psutil.tests import skip_on_access_denied
from psutil.tests import spawn_testproc
from psutil.tests import system_namespace
from psutil.tests import terminate
cext = psutil._psplatform.cext
thisproc = psutil.Process()
FEW_TIMES = 5
def fewtimes_if_linux():
"""Decorator for those Linux functions which are implemented in pure
Python, and which we want to run faster.
"""
def decorator(fun):
@functools.wraps(fun)
def wrapper(self, *args, **kwargs):
if LINUX:
before = self.__class__.times
try:
self.__class__.times = FEW_TIMES
return fun(self, *args, **kwargs)
finally:
self.__class__.times = before
else:
return fun(self, *args, **kwargs)
return wrapper
return decorator
# ===================================================================
# Process class
# ===================================================================
class TestProcessObjectLeaks(TestMemoryLeak):
"""Test leaks of Process class methods."""
proc = thisproc
def test_coverage(self):
ns = process_namespace(None)
ns.test_class_coverage(self, ns.getters + ns.setters)
@fewtimes_if_linux()
def test_name(self):
self.execute(self.proc.name)
@fewtimes_if_linux()
def test_cmdline(self):
self.execute(self.proc.cmdline)
@fewtimes_if_linux()
def test_exe(self):
self.execute(self.proc.exe)
@fewtimes_if_linux()
def test_ppid(self):
self.execute(self.proc.ppid)
@unittest.skipIf(not POSIX, "POSIX only")
@fewtimes_if_linux()
def test_uids(self):
self.execute(self.proc.uids)
@unittest.skipIf(not POSIX, "POSIX only")
@fewtimes_if_linux()
def test_gids(self):
self.execute(self.proc.gids)
@fewtimes_if_linux()
def test_status(self):
self.execute(self.proc.status)
def test_nice(self):
self.execute(self.proc.nice)
def test_nice_set(self):
niceness = thisproc.nice()
self.execute(lambda: self.proc.nice(niceness))
@unittest.skipIf(not HAS_IONICE, "not supported")
def test_ionice(self):
self.execute(self.proc.ionice)
@unittest.skipIf(not HAS_IONICE, "not supported")
def test_ionice_set(self):
if WINDOWS:
value = thisproc.ionice()
self.execute(lambda: self.proc.ionice(value))
else:
self.execute(lambda: self.proc.ionice(psutil.IOPRIO_CLASS_NONE))
fun = functools.partial(cext.proc_ioprio_set, os.getpid(), -1, 0)
self.execute_w_exc(OSError, fun)
@unittest.skipIf(not HAS_PROC_IO_COUNTERS, "not supported")
@fewtimes_if_linux()
def test_io_counters(self):
self.execute(self.proc.io_counters)
@unittest.skipIf(POSIX, "worthless on POSIX")
def test_username(self):
# always open 1 handle on Windows (only once)
psutil.Process().username()
self.execute(self.proc.username)
@fewtimes_if_linux()
def test_create_time(self):
self.execute(self.proc.create_time)
@fewtimes_if_linux()
@skip_on_access_denied(only_if=OPENBSD)
def test_num_threads(self):
self.execute(self.proc.num_threads)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
def test_num_handles(self):
self.execute(self.proc.num_handles)
@unittest.skipIf(not POSIX, "POSIX only")
@fewtimes_if_linux()
def test_num_fds(self):
self.execute(self.proc.num_fds)
@fewtimes_if_linux()
def test_num_ctx_switches(self):
self.execute(self.proc.num_ctx_switches)
@fewtimes_if_linux()
@skip_on_access_denied(only_if=OPENBSD)
def test_threads(self):
self.execute(self.proc.threads)
@fewtimes_if_linux()
def test_cpu_times(self):
self.execute(self.proc.cpu_times)
@fewtimes_if_linux()
@unittest.skipIf(not HAS_PROC_CPU_NUM, "not supported")
def test_cpu_num(self):
self.execute(self.proc.cpu_num)
@fewtimes_if_linux()
def test_memory_info(self):
self.execute(self.proc.memory_info)
@fewtimes_if_linux()
def test_memory_full_info(self):
self.execute(self.proc.memory_full_info)
@unittest.skipIf(not POSIX, "POSIX only")
@fewtimes_if_linux()
def test_terminal(self):
self.execute(self.proc.terminal)
def test_resume(self):
times = FEW_TIMES if POSIX else self.times
self.execute(self.proc.resume, times=times)
@fewtimes_if_linux()
def test_cwd(self):
self.execute(self.proc.cwd)
@unittest.skipIf(not HAS_CPU_AFFINITY, "not supported")
def test_cpu_affinity(self):
self.execute(self.proc.cpu_affinity)
@unittest.skipIf(not HAS_CPU_AFFINITY, "not supported")
def test_cpu_affinity_set(self):
affinity = thisproc.cpu_affinity()
self.execute(lambda: self.proc.cpu_affinity(affinity))
self.execute_w_exc(
ValueError, lambda: self.proc.cpu_affinity([-1]))
@fewtimes_if_linux()
def test_open_files(self):
with open(get_testfn(), 'w'):
self.execute(self.proc.open_files)
@unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
@fewtimes_if_linux()
def test_memory_maps(self):
self.execute(self.proc.memory_maps)
@unittest.skipIf(not LINUX, "LINUX only")
@unittest.skipIf(not HAS_RLIMIT, "not supported")
def test_rlimit(self):
self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE))
@unittest.skipIf(not LINUX, "LINUX only")
@unittest.skipIf(not HAS_RLIMIT, "not supported")
def test_rlimit_set(self):
limit = thisproc.rlimit(psutil.RLIMIT_NOFILE)
self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE, limit))
self.execute_w_exc((OSError, ValueError), lambda: self.proc.rlimit(-1))
@fewtimes_if_linux()
# Windows implementation is based on a single system-wide
# function (tested later).
@unittest.skipIf(WINDOWS, "worthless on WINDOWS")
def test_connections(self):
# TODO: UNIX sockets are temporarily implemented by parsing
# 'pfiles' cmd output; we don't want that part of the code to
# be executed.
with create_sockets():
kind = 'inet' if SUNOS else 'all'
self.execute(lambda: self.proc.connections(kind))
@unittest.skipIf(not HAS_ENVIRON, "not supported")
def test_environ(self):
self.execute(self.proc.environ)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
def test_proc_info(self):
self.execute(lambda: cext.proc_info(os.getpid()))
class TestTerminatedProcessLeaks(TestProcessObjectLeaks):
"""Repeat the tests above looking for leaks occurring when dealing
with terminated processes raising NoSuchProcess exception.
The C functions are still invoked but will follow different code
paths. We'll check those code paths.
"""
@classmethod
def setUpClass(cls):
super().setUpClass()
cls.subp = spawn_testproc()
cls.proc = psutil.Process(cls.subp.pid)
cls.proc.kill()
cls.proc.wait()
@classmethod
def tearDownClass(cls):
super().tearDownClass()
terminate(cls.subp)
def call(self, fun):
try:
fun()
except psutil.NoSuchProcess:
pass
if WINDOWS:
def test_kill(self):
self.execute(self.proc.kill)
def test_terminate(self):
self.execute(self.proc.terminate)
def test_suspend(self):
self.execute(self.proc.suspend)
def test_resume(self):
self.execute(self.proc.resume)
def test_wait(self):
self.execute(self.proc.wait)
def test_proc_info(self):
# test dual implementation
def call():
try:
return cext.proc_info(self.proc.pid)
except ProcessLookupError:
pass
self.execute(call)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
class TestProcessDualImplementation(TestMemoryLeak):
def test_cmdline_peb_true(self):
self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=True))
def test_cmdline_peb_false(self):
self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=False))
# ===================================================================
# system APIs
# ===================================================================
class TestModuleFunctionsLeaks(TestMemoryLeak):
"""Test leaks of psutil module functions."""
def test_coverage(self):
ns = system_namespace()
ns.test_class_coverage(self, ns.all)
# --- cpu
@fewtimes_if_linux()
def test_cpu_count(self): # logical
self.execute(lambda: psutil.cpu_count(logical=True))
@fewtimes_if_linux()
def test_cpu_count_cores(self):
self.execute(lambda: psutil.cpu_count(logical=False))
@fewtimes_if_linux()
def test_cpu_times(self):
self.execute(psutil.cpu_times)
@fewtimes_if_linux()
def test_per_cpu_times(self):
self.execute(lambda: psutil.cpu_times(percpu=True))
@fewtimes_if_linux()
def test_cpu_stats(self):
self.execute(psutil.cpu_stats)
@fewtimes_if_linux()
# TODO: remove this once 1892 is fixed
@unittest.skipIf(MACOS and platform.machine() == 'arm64',
"skipped due to #1892")
@unittest.skipIf(not HAS_CPU_FREQ, "not supported")
def test_cpu_freq(self):
self.execute(psutil.cpu_freq)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
def test_getloadavg(self):
psutil.getloadavg()
self.execute(psutil.getloadavg)
# --- mem
def test_virtual_memory(self):
self.execute(psutil.virtual_memory)
# TODO: remove this skip when this gets fixed
@unittest.skipIf(SUNOS, "worthless on SUNOS (uses a subprocess)")
def test_swap_memory(self):
self.execute(psutil.swap_memory)
def test_pid_exists(self):
times = FEW_TIMES if POSIX else self.times
self.execute(lambda: psutil.pid_exists(os.getpid()), times=times)
# --- disk
def test_disk_usage(self):
times = FEW_TIMES if POSIX else self.times
self.execute(lambda: psutil.disk_usage('.'), times=times)
def test_disk_partitions(self):
self.execute(psutil.disk_partitions)
@unittest.skipIf(LINUX and not os.path.exists('/proc/diskstats'),
'/proc/diskstats not available on this Linux version')
@fewtimes_if_linux()
def test_disk_io_counters(self):
self.execute(lambda: psutil.disk_io_counters(nowrap=False))
# --- proc
@fewtimes_if_linux()
def test_pids(self):
self.execute(psutil.pids)
# --- net
@fewtimes_if_linux()
@unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
def test_net_io_counters(self):
self.execute(lambda: psutil.net_io_counters(nowrap=False))
@fewtimes_if_linux()
@unittest.skipIf(MACOS and os.getuid() != 0, "need root access")
def test_net_connections(self):
# always opens and handle on Windows() (once)
psutil.net_connections(kind='all')
with create_sockets():
self.execute(lambda: psutil.net_connections(kind='all'))
def test_net_if_addrs(self):
# Note: verified that on Windows this was a false positive.
tolerance = 80 * 1024 if WINDOWS else self.tolerance
self.execute(psutil.net_if_addrs, tolerance=tolerance)
def test_net_if_stats(self):
self.execute(psutil.net_if_stats)
# --- sensors
@fewtimes_if_linux()
@unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported")
def test_sensors_battery(self):
self.execute(psutil.sensors_battery)
@fewtimes_if_linux()
@unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
def test_sensors_temperatures(self):
self.execute(psutil.sensors_temperatures)
@fewtimes_if_linux()
@unittest.skipIf(not HAS_SENSORS_FANS, "not supported")
def test_sensors_fans(self):
self.execute(psutil.sensors_fans)
# --- others
@fewtimes_if_linux()
def test_boot_time(self):
self.execute(psutil.boot_time)
def test_users(self):
self.execute(psutil.users)
def test_set_debug(self):
self.execute(lambda: psutil._set_debug(False))
if WINDOWS:
# --- win services
def test_win_service_iter(self):
self.execute(cext.winservice_enumerate)
def test_win_service_get(self):
pass
def test_win_service_get_config(self):
name = next(psutil.win_service_iter()).name()
self.execute(lambda: cext.winservice_query_config(name))
def test_win_service_get_status(self):
name = next(psutil.win_service_iter()).name()
self.execute(lambda: cext.winservice_query_status(name))
def test_win_service_get_description(self):
name = next(psutil.win_service_iter()).name()
self.execute(lambda: cext.winservice_query_descr(name))
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Miscellaneous tests.
"""
import ast
import collections
import errno
import json
import os
import pickle
import socket
import stat
import unittest
import psutil
import psutil.tests
from psutil import LINUX
from psutil import POSIX
from psutil import WINDOWS
from psutil._common import bcat
from psutil._common import cat
from psutil._common import debug
from psutil._common import isfile_strict
from psutil._common import memoize
from psutil._common import memoize_when_activated
from psutil._common import parse_environ_block
from psutil._common import supports_ipv6
from psutil._common import wrap_numbers
from psutil._compat import PY3
from psutil._compat import FileNotFoundError
from psutil._compat import redirect_stderr
from psutil.tests import APPVEYOR
from psutil.tests import CI_TESTING
from psutil.tests import HAS_BATTERY
from psutil.tests import HAS_MEMORY_MAPS
from psutil.tests import HAS_NET_IO_COUNTERS
from psutil.tests import HAS_SENSORS_BATTERY
from psutil.tests import HAS_SENSORS_FANS
from psutil.tests import HAS_SENSORS_TEMPERATURES
from psutil.tests import PYTHON_EXE
from psutil.tests import PYTHON_EXE_ENV
from psutil.tests import SCRIPTS_DIR
from psutil.tests import PsutilTestCase
from psutil.tests import mock
from psutil.tests import reload_module
from psutil.tests import sh
# ===================================================================
# --- Test classes' repr(), str(), ...
# ===================================================================
class TestSpecialMethods(PsutilTestCase):
def test_process__repr__(self, func=repr):
p = psutil.Process(self.spawn_testproc().pid)
r = func(p)
self.assertIn("psutil.Process", r)
self.assertIn("pid=%s" % p.pid, r)
self.assertIn("name='%s'" % str(p.name()),
r.replace("name=u'", "name='"))
self.assertIn("status=", r)
self.assertNotIn("exitcode=", r)
p.terminate()
p.wait()
r = func(p)
self.assertIn("status='terminated'", r)
self.assertIn("exitcode=", r)
with mock.patch.object(psutil.Process, "name",
side_effect=psutil.ZombieProcess(os.getpid())):
p = psutil.Process()
r = func(p)
self.assertIn("pid=%s" % p.pid, r)
self.assertIn("status='zombie'", r)
self.assertNotIn("name=", r)
with mock.patch.object(psutil.Process, "name",
side_effect=psutil.NoSuchProcess(os.getpid())):
p = psutil.Process()
r = func(p)
self.assertIn("pid=%s" % p.pid, r)
self.assertIn("terminated", r)
self.assertNotIn("name=", r)
with mock.patch.object(psutil.Process, "name",
side_effect=psutil.AccessDenied(os.getpid())):
p = psutil.Process()
r = func(p)
self.assertIn("pid=%s" % p.pid, r)
self.assertNotIn("name=", r)
def test_process__str__(self):
self.test_process__repr__(func=str)
def test_error__repr__(self):
self.assertEqual(repr(psutil.Error()), "psutil.Error()")
def test_error__str__(self):
self.assertEqual(str(psutil.Error()), "")
def test_no_such_process__repr__(self):
self.assertEqual(
repr(psutil.NoSuchProcess(321)),
"psutil.NoSuchProcess(pid=321, msg='process no longer exists')")
self.assertEqual(
repr(psutil.NoSuchProcess(321, name="name", msg="msg")),
"psutil.NoSuchProcess(pid=321, name='name', msg='msg')")
def test_no_such_process__str__(self):
self.assertEqual(
str(psutil.NoSuchProcess(321)),
"process no longer exists (pid=321)")
self.assertEqual(
str(psutil.NoSuchProcess(321, name="name", msg="msg")),
"msg (pid=321, name='name')")
def test_zombie_process__repr__(self):
self.assertEqual(
repr(psutil.ZombieProcess(321)),
'psutil.ZombieProcess(pid=321, msg="PID still '
'exists but it\'s a zombie")')
self.assertEqual(
repr(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")),
"psutil.ZombieProcess(pid=321, ppid=320, name='name', msg='foo')")
def test_zombie_process__str__(self):
self.assertEqual(
str(psutil.ZombieProcess(321)),
"PID still exists but it's a zombie (pid=321)")
self.assertEqual(
str(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")),
"foo (pid=321, ppid=320, name='name')")
def test_access_denied__repr__(self):
self.assertEqual(
repr(psutil.AccessDenied(321)),
"psutil.AccessDenied(pid=321)")
self.assertEqual(
repr(psutil.AccessDenied(321, name="name", msg="msg")),
"psutil.AccessDenied(pid=321, name='name', msg='msg')")
def test_access_denied__str__(self):
self.assertEqual(
str(psutil.AccessDenied(321)),
"(pid=321)")
self.assertEqual(
str(psutil.AccessDenied(321, name="name", msg="msg")),
"msg (pid=321, name='name')")
def test_timeout_expired__repr__(self):
self.assertEqual(
repr(psutil.TimeoutExpired(5)),
"psutil.TimeoutExpired(seconds=5, msg='timeout after 5 seconds')")
self.assertEqual(
repr(psutil.TimeoutExpired(5, pid=321, name="name")),
"psutil.TimeoutExpired(pid=321, name='name', seconds=5, "
"msg='timeout after 5 seconds')")
def test_timeout_expired__str__(self):
self.assertEqual(
str(psutil.TimeoutExpired(5)),
"timeout after 5 seconds")
self.assertEqual(
str(psutil.TimeoutExpired(5, pid=321, name="name")),
"timeout after 5 seconds (pid=321, name='name')")
def test_process__eq__(self):
p1 = psutil.Process()
p2 = psutil.Process()
self.assertEqual(p1, p2)
p2._ident = (0, 0)
self.assertNotEqual(p1, p2)
self.assertNotEqual(p1, 'foo')
def test_process__hash__(self):
s = set([psutil.Process(), psutil.Process()])
self.assertEqual(len(s), 1)
# ===================================================================
# --- Misc, generic, corner cases
# ===================================================================
class TestMisc(PsutilTestCase):
def test__all__(self):
dir_psutil = dir(psutil)
for name in dir_psutil:
if name in ('long', 'tests', 'test', 'PermissionError',
'ProcessLookupError'):
continue
if not name.startswith('_'):
try:
__import__(name)
except ImportError:
if name not in psutil.__all__:
fun = getattr(psutil, name)
if fun is None:
continue
if (fun.__doc__ is not None and
'deprecated' not in fun.__doc__.lower()):
raise self.fail('%r not in psutil.__all__' % name)
# Import 'star' will break if __all__ is inconsistent, see:
# https://github.com/giampaolo/psutil/issues/656
# Can't do `from psutil import *` as it won't work on python 3
# so we simply iterate over __all__.
for name in psutil.__all__:
self.assertIn(name, dir_psutil)
def test_version(self):
self.assertEqual('.'.join([str(x) for x in psutil.version_info]),
psutil.__version__)
def test_process_as_dict_no_new_names(self):
# See https://github.com/giampaolo/psutil/issues/813
p = psutil.Process()
p.foo = '1'
self.assertNotIn('foo', p.as_dict())
def test_serialization(self):
def check(ret):
if json is not None:
json.loads(json.dumps(ret))
a = pickle.dumps(ret)
b = pickle.loads(a)
self.assertEqual(ret, b)
check(psutil.Process().as_dict())
check(psutil.virtual_memory())
check(psutil.swap_memory())
check(psutil.cpu_times())
check(psutil.cpu_times_percent(interval=0))
check(psutil.net_io_counters())
if LINUX and not os.path.exists('/proc/diskstats'):
pass
else:
if not APPVEYOR:
check(psutil.disk_io_counters())
check(psutil.disk_partitions())
check(psutil.disk_usage(os.getcwd()))
check(psutil.users())
# # XXX: https://github.com/pypa/setuptools/pull/2896
# @unittest.skipIf(APPVEYOR, "temporarily disabled due to setuptools bug")
# def test_setup_script(self):
# setup_py = os.path.join(ROOT_DIR, 'setup.py')
# if CI_TESTING and not os.path.exists(setup_py):
# return self.skipTest("can't find setup.py")
# module = import_module_by_path(setup_py)
# self.assertRaises(SystemExit, module.setup)
# self.assertEqual(module.get_version(), psutil.__version__)
def test_ad_on_process_creation(self):
# We are supposed to be able to instantiate Process also in case
# of zombie processes or access denied.
with mock.patch.object(psutil.Process, 'create_time',
side_effect=psutil.AccessDenied) as meth:
psutil.Process()
assert meth.called
with mock.patch.object(psutil.Process, 'create_time',
side_effect=psutil.ZombieProcess(1)) as meth:
psutil.Process()
assert meth.called
with mock.patch.object(psutil.Process, 'create_time',
side_effect=ValueError) as meth:
with self.assertRaises(ValueError):
psutil.Process()
assert meth.called
def test_sanity_version_check(self):
# see: https://github.com/giampaolo/psutil/issues/564
with mock.patch(
"psutil._psplatform.cext.version", return_value="0.0.0"):
with self.assertRaises(ImportError) as cm:
reload_module(psutil)
self.assertIn("version conflict", str(cm.exception).lower())
# ===================================================================
# --- psutil/_common.py utils
# ===================================================================
class TestMemoizeDecorator(PsutilTestCase):
def setUp(self):
self.calls = []
tearDown = setUp
def run_against(self, obj, expected_retval=None):
# no args
for _ in range(2):
ret = obj()
self.assertEqual(self.calls, [((), {})])
if expected_retval is not None:
self.assertEqual(ret, expected_retval)
# with args
for _ in range(2):
ret = obj(1)
self.assertEqual(self.calls, [((), {}), ((1, ), {})])
if expected_retval is not None:
self.assertEqual(ret, expected_retval)
# with args + kwargs
for _ in range(2):
ret = obj(1, bar=2)
self.assertEqual(
self.calls, [((), {}), ((1, ), {}), ((1, ), {'bar': 2})])
if expected_retval is not None:
self.assertEqual(ret, expected_retval)
# clear cache
self.assertEqual(len(self.calls), 3)
obj.cache_clear()
ret = obj()
if expected_retval is not None:
self.assertEqual(ret, expected_retval)
self.assertEqual(len(self.calls), 4)
# docstring
self.assertEqual(obj.__doc__, "my docstring")
def test_function(self):
@memoize
def foo(*args, **kwargs):
"""my docstring"""
baseclass.calls.append((args, kwargs))
return 22
baseclass = self
self.run_against(foo, expected_retval=22)
def test_class(self):
@memoize
class Foo:
"""my docstring"""
def __init__(self, *args, **kwargs):
baseclass.calls.append((args, kwargs))
def bar(self):
return 22
baseclass = self
self.run_against(Foo, expected_retval=None)
self.assertEqual(Foo().bar(), 22)
def test_class_singleton(self):
# @memoize can be used against classes to create singletons
@memoize
class Bar:
def __init__(self, *args, **kwargs):
pass
self.assertIs(Bar(), Bar())
self.assertEqual(id(Bar()), id(Bar()))
self.assertEqual(id(Bar(1)), id(Bar(1)))
self.assertEqual(id(Bar(1, foo=3)), id(Bar(1, foo=3)))
self.assertNotEqual(id(Bar(1)), id(Bar(2)))
def test_staticmethod(self):
class Foo:
@staticmethod
@memoize
def bar(*args, **kwargs):
"""my docstring"""
baseclass.calls.append((args, kwargs))
return 22
baseclass = self
self.run_against(Foo().bar, expected_retval=22)
def test_classmethod(self):
class Foo:
@classmethod
@memoize
def bar(cls, *args, **kwargs):
"""my docstring"""
baseclass.calls.append((args, kwargs))
return 22
baseclass = self
self.run_against(Foo().bar, expected_retval=22)
def test_original(self):
# This was the original test before I made it dynamic to test it
# against different types. Keeping it anyway.
@memoize
def foo(*args, **kwargs):
"""foo docstring"""
calls.append(None)
return (args, kwargs)
calls = []
# no args
for _ in range(2):
ret = foo()
expected = ((), {})
self.assertEqual(ret, expected)
self.assertEqual(len(calls), 1)
# with args
for _ in range(2):
ret = foo(1)
expected = ((1, ), {})
self.assertEqual(ret, expected)
self.assertEqual(len(calls), 2)
# with args + kwargs
for _ in range(2):
ret = foo(1, bar=2)
expected = ((1, ), {'bar': 2})
self.assertEqual(ret, expected)
self.assertEqual(len(calls), 3)
# clear cache
foo.cache_clear()
ret = foo()
expected = ((), {})
self.assertEqual(ret, expected)
self.assertEqual(len(calls), 4)
# docstring
self.assertEqual(foo.__doc__, "foo docstring")
class TestCommonModule(PsutilTestCase):
def test_memoize_when_activated(self):
class Foo:
@memoize_when_activated
def foo(self):
calls.append(None)
f = Foo()
calls = []
f.foo()
f.foo()
self.assertEqual(len(calls), 2)
# activate
calls = []
f.foo.cache_activate(f)
f.foo()
f.foo()
self.assertEqual(len(calls), 1)
# deactivate
calls = []
f.foo.cache_deactivate(f)
f.foo()
f.foo()
self.assertEqual(len(calls), 2)
def test_parse_environ_block(self):
def k(s):
return s.upper() if WINDOWS else s
self.assertEqual(parse_environ_block("a=1\0"),
{k("a"): "1"})
self.assertEqual(parse_environ_block("a=1\0b=2\0\0"),
{k("a"): "1", k("b"): "2"})
self.assertEqual(parse_environ_block("a=1\0b=\0\0"),
{k("a"): "1", k("b"): ""})
# ignore everything after \0\0
self.assertEqual(parse_environ_block("a=1\0b=2\0\0c=3\0"),
{k("a"): "1", k("b"): "2"})
# ignore everything that is not an assignment
self.assertEqual(parse_environ_block("xxx\0a=1\0"), {k("a"): "1"})
self.assertEqual(parse_environ_block("a=1\0=b=2\0"), {k("a"): "1"})
# do not fail if the block is incomplete
self.assertEqual(parse_environ_block("a=1\0b=2"), {k("a"): "1"})
def test_supports_ipv6(self):
self.addCleanup(supports_ipv6.cache_clear)
if supports_ipv6():
with mock.patch('psutil._common.socket') as s:
s.has_ipv6 = False
supports_ipv6.cache_clear()
assert not supports_ipv6()
supports_ipv6.cache_clear()
with mock.patch('psutil._common.socket.socket',
side_effect=socket.error) as s:
assert not supports_ipv6()
assert s.called
supports_ipv6.cache_clear()
with mock.patch('psutil._common.socket.socket',
side_effect=socket.gaierror) as s:
assert not supports_ipv6()
supports_ipv6.cache_clear()
assert s.called
supports_ipv6.cache_clear()
with mock.patch('psutil._common.socket.socket.bind',
side_effect=socket.gaierror) as s:
assert not supports_ipv6()
supports_ipv6.cache_clear()
assert s.called
else:
with self.assertRaises(socket.error):
sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
try:
sock.bind(("::1", 0))
finally:
sock.close()
def test_isfile_strict(self):
this_file = os.path.abspath(__file__)
assert isfile_strict(this_file)
assert not isfile_strict(os.path.dirname(this_file))
with mock.patch('psutil._common.os.stat',
side_effect=OSError(errno.EPERM, "foo")):
self.assertRaises(OSError, isfile_strict, this_file)
with mock.patch('psutil._common.os.stat',
side_effect=OSError(errno.EACCES, "foo")):
self.assertRaises(OSError, isfile_strict, this_file)
with mock.patch('psutil._common.os.stat',
side_effect=OSError(errno.ENOENT, "foo")):
assert not isfile_strict(this_file)
with mock.patch('psutil._common.stat.S_ISREG', return_value=False):
assert not isfile_strict(this_file)
def test_debug(self):
if PY3:
from io import StringIO
else:
from StringIO import StringIO
with redirect_stderr(StringIO()) as f:
debug("hello")
msg = f.getvalue()
assert msg.startswith("psutil-debug"), msg
self.assertIn("hello", msg)
self.assertIn(__file__.replace('.pyc', '.py'), msg)
# supposed to use repr(exc)
with redirect_stderr(StringIO()) as f:
debug(ValueError("this is an error"))
msg = f.getvalue()
self.assertIn("ignoring ValueError", msg)
self.assertIn("'this is an error'", msg)
# supposed to use str(exc), because of extra info about file name
with redirect_stderr(StringIO()) as f:
exc = OSError(2, "no such file")
exc.filename = "/foo"
debug(exc)
msg = f.getvalue()
self.assertIn("no such file", msg)
self.assertIn("/foo", msg)
def test_cat_bcat(self):
testfn = self.get_testfn()
with open(testfn, "wt") as f:
f.write("foo")
self.assertEqual(cat(testfn), "foo")
self.assertEqual(bcat(testfn), b"foo")
self.assertRaises(FileNotFoundError, cat, testfn + '-invalid')
self.assertRaises(FileNotFoundError, bcat, testfn + '-invalid')
self.assertEqual(cat(testfn + '-invalid', fallback="bar"), "bar")
self.assertEqual(bcat(testfn + '-invalid', fallback="bar"), "bar")
# ===================================================================
# --- Tests for wrap_numbers() function.
# ===================================================================
nt = collections.namedtuple('foo', 'a b c')
class TestWrapNumbers(PsutilTestCase):
def setUp(self):
wrap_numbers.cache_clear()
tearDown = setUp
def test_first_call(self):
input = {'disk1': nt(5, 5, 5)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
def test_input_hasnt_changed(self):
input = {'disk1': nt(5, 5, 5)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
def test_increase_but_no_wrap(self):
input = {'disk1': nt(5, 5, 5)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
input = {'disk1': nt(10, 15, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
input = {'disk1': nt(20, 25, 30)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
input = {'disk1': nt(20, 25, 30)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
def test_wrap(self):
# let's say 100 is the threshold
input = {'disk1': nt(100, 100, 100)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
# first wrap restarts from 10
input = {'disk1': nt(100, 100, 10)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(100, 100, 110)})
# then it remains the same
input = {'disk1': nt(100, 100, 10)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(100, 100, 110)})
# then it goes up
input = {'disk1': nt(100, 100, 90)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(100, 100, 190)})
# then it wraps again
input = {'disk1': nt(100, 100, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(100, 100, 210)})
# and remains the same
input = {'disk1': nt(100, 100, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(100, 100, 210)})
# now wrap another num
input = {'disk1': nt(50, 100, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(150, 100, 210)})
# and again
input = {'disk1': nt(40, 100, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(190, 100, 210)})
# keep it the same
input = {'disk1': nt(40, 100, 20)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(190, 100, 210)})
def test_changing_keys(self):
# Emulate a case where the second call to disk_io()
# (or whatever) provides a new disk, then the new disk
# disappears on the third call.
input = {'disk1': nt(5, 5, 5)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
input = {'disk1': nt(5, 5, 5),
'disk2': nt(7, 7, 7)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
input = {'disk1': nt(8, 8, 8)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
def test_changing_keys_w_wrap(self):
input = {'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 100)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
# disk 2 wraps
input = {'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 10)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 110)})
# disk 2 disappears
input = {'disk1': nt(50, 50, 50)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
# then it appears again; the old wrap is supposed to be
# gone.
input = {'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 100)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
# remains the same
input = {'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 100)}
self.assertEqual(wrap_numbers(input, 'disk_io'), input)
# and then wraps again
input = {'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 10)}
self.assertEqual(wrap_numbers(input, 'disk_io'),
{'disk1': nt(50, 50, 50),
'disk2': nt(100, 100, 110)})
def test_real_data(self):
d = {'nvme0n1': (300, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048),
'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8),
'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28),
'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)}
self.assertEqual(wrap_numbers(d, 'disk_io'), d)
self.assertEqual(wrap_numbers(d, 'disk_io'), d)
# decrease this ↓
d = {'nvme0n1': (100, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048),
'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8),
'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28),
'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)}
out = wrap_numbers(d, 'disk_io')
self.assertEqual(out['nvme0n1'][0], 400)
# --- cache tests
def test_cache_first_call(self):
input = {'disk1': nt(5, 5, 5)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
self.assertEqual(cache[1], {'disk_io': {}})
self.assertEqual(cache[2], {'disk_io': {}})
def test_cache_call_twice(self):
input = {'disk1': nt(5, 5, 5)}
wrap_numbers(input, 'disk_io')
input = {'disk1': nt(10, 10, 10)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
self.assertEqual(
cache[1],
{'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}})
self.assertEqual(cache[2], {'disk_io': {}})
def test_cache_wrap(self):
# let's say 100 is the threshold
input = {'disk1': nt(100, 100, 100)}
wrap_numbers(input, 'disk_io')
# first wrap restarts from 10
input = {'disk1': nt(100, 100, 10)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
self.assertEqual(
cache[1],
{'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 100}})
self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}})
def check_cache_info():
cache = wrap_numbers.cache_info()
self.assertEqual(
cache[1],
{'disk_io': {('disk1', 0): 0, ('disk1', 1): 0,
('disk1', 2): 100}})
self.assertEqual(cache[2],
{'disk_io': {'disk1': set([('disk1', 2)])}})
# then it remains the same
input = {'disk1': nt(100, 100, 10)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
check_cache_info()
# then it goes up
input = {'disk1': nt(100, 100, 90)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
check_cache_info()
# then it wraps again
input = {'disk1': nt(100, 100, 20)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
self.assertEqual(
cache[1],
{'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 190}})
self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}})
def test_cache_changing_keys(self):
input = {'disk1': nt(5, 5, 5)}
wrap_numbers(input, 'disk_io')
input = {'disk1': nt(5, 5, 5),
'disk2': nt(7, 7, 7)}
wrap_numbers(input, 'disk_io')
cache = wrap_numbers.cache_info()
self.assertEqual(cache[0], {'disk_io': input})
self.assertEqual(
cache[1],
{'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}})
self.assertEqual(cache[2], {'disk_io': {}})
def test_cache_clear(self):
input = {'disk1': nt(5, 5, 5)}
wrap_numbers(input, 'disk_io')
wrap_numbers(input, 'disk_io')
wrap_numbers.cache_clear('disk_io')
self.assertEqual(wrap_numbers.cache_info(), ({}, {}, {}))
wrap_numbers.cache_clear('disk_io')
wrap_numbers.cache_clear('?!?')
@unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
def test_cache_clear_public_apis(self):
if not psutil.disk_io_counters() or not psutil.net_io_counters():
return self.skipTest("no disks or NICs available")
psutil.disk_io_counters()
psutil.net_io_counters()
caches = wrap_numbers.cache_info()
for cache in caches:
self.assertIn('psutil.disk_io_counters', cache)
self.assertIn('psutil.net_io_counters', cache)
psutil.disk_io_counters.cache_clear()
caches = wrap_numbers.cache_info()
for cache in caches:
self.assertIn('psutil.net_io_counters', cache)
self.assertNotIn('psutil.disk_io_counters', cache)
psutil.net_io_counters.cache_clear()
caches = wrap_numbers.cache_info()
self.assertEqual(caches, ({}, {}, {}))
# ===================================================================
# --- Example script tests
# ===================================================================
@unittest.skipIf(not os.path.exists(SCRIPTS_DIR),
"can't locate scripts directory")
class TestScripts(PsutilTestCase):
"""Tests for scripts in the "scripts" directory."""
@staticmethod
def assert_stdout(exe, *args, **kwargs):
kwargs.setdefault("env", PYTHON_EXE_ENV)
exe = '%s' % os.path.join(SCRIPTS_DIR, exe)
cmd = [PYTHON_EXE, exe]
for arg in args:
cmd.append(arg)
try:
out = sh(cmd, **kwargs).strip()
except RuntimeError as err:
if 'AccessDenied' in str(err):
return str(err)
else:
raise
assert out, out
return out
@staticmethod
def assert_syntax(exe):
exe = os.path.join(SCRIPTS_DIR, exe)
if PY3:
f = open(exe, 'rt', encoding='utf8')
else:
f = open(exe, 'rt')
with f:
src = f.read()
ast.parse(src)
def test_coverage(self):
# make sure all example scripts have a test method defined
meths = dir(self)
for name in os.listdir(SCRIPTS_DIR):
if name.endswith('.py'):
if 'test_' + os.path.splitext(name)[0] not in meths:
# self.assert_stdout(name)
raise self.fail('no test defined for %r script'
% os.path.join(SCRIPTS_DIR, name))
@unittest.skipIf(not POSIX, "POSIX only")
def test_executable(self):
for root, dirs, files in os.walk(SCRIPTS_DIR):
for file in files:
if file.endswith('.py'):
path = os.path.join(root, file)
if not stat.S_IXUSR & os.stat(path)[stat.ST_MODE]:
raise self.fail('%r is not executable' % path)
def test_disk_usage(self):
self.assert_stdout('disk_usage.py')
def test_free(self):
self.assert_stdout('free.py')
def test_meminfo(self):
self.assert_stdout('meminfo.py')
def test_procinfo(self):
self.assert_stdout('procinfo.py', str(os.getpid()))
@unittest.skipIf(CI_TESTING and not psutil.users(), "no users")
def test_who(self):
self.assert_stdout('who.py')
def test_ps(self):
self.assert_stdout('ps.py')
def test_pstree(self):
self.assert_stdout('pstree.py')
def test_netstat(self):
self.assert_stdout('netstat.py')
def test_ifconfig(self):
self.assert_stdout('ifconfig.py')
@unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
def test_pmap(self):
self.assert_stdout('pmap.py', str(os.getpid()))
def test_procsmem(self):
if 'uss' not in psutil.Process().memory_full_info()._fields:
raise self.skipTest("not supported")
self.assert_stdout('procsmem.py')
def test_killall(self):
self.assert_syntax('killall.py')
def test_nettop(self):
self.assert_syntax('nettop.py')
def test_top(self):
self.assert_syntax('top.py')
def test_iotop(self):
self.assert_syntax('iotop.py')
def test_pidof(self):
output = self.assert_stdout('pidof.py', psutil.Process().name())
self.assertIn(str(os.getpid()), output)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
def test_winservices(self):
self.assert_stdout('winservices.py')
def test_cpu_distribution(self):
self.assert_syntax('cpu_distribution.py')
@unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
def test_temperatures(self):
if not psutil.sensors_temperatures():
self.skipTest("no temperatures")
self.assert_stdout('temperatures.py')
@unittest.skipIf(not HAS_SENSORS_FANS, "not supported")
def test_fans(self):
if not psutil.sensors_fans():
self.skipTest("no fans")
self.assert_stdout('fans.py')
@unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported")
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_battery(self):
self.assert_stdout('battery.py')
@unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported")
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_sensors(self):
self.assert_stdout('sensors.py')
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""macOS specific tests."""
import platform
import re
import time
import unittest
import psutil
from psutil import MACOS
from psutil import POSIX
from psutil.tests import HAS_BATTERY
from psutil.tests import TOLERANCE_DISK_USAGE
from psutil.tests import TOLERANCE_SYS_MEM
from psutil.tests import PsutilTestCase
from psutil.tests import retry_on_failure
from psutil.tests import sh
from psutil.tests import spawn_testproc
from psutil.tests import terminate
if POSIX:
from psutil._psutil_posix import getpagesize
def sysctl(cmdline):
"""Expects a sysctl command with an argument and parse the result
returning only the value of interest.
"""
out = sh(cmdline)
result = out.split()[1]
try:
return int(result)
except ValueError:
return result
def vm_stat(field):
"""Wrapper around 'vm_stat' cmdline utility."""
out = sh('vm_stat')
for line in out.split('\n'):
if field in line:
break
else:
raise ValueError("line not found")
return int(re.search(r'\d+', line).group(0)) * getpagesize()
@unittest.skipIf(not MACOS, "MACOS only")
class TestProcess(PsutilTestCase):
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
def test_process_create_time(self):
output = sh("ps -o lstart -p %s" % self.pid)
start_ps = output.replace('STARTED', '').strip()
hhmmss = start_ps.split(' ')[-2]
year = start_ps.split(' ')[-1]
start_psutil = psutil.Process(self.pid).create_time()
self.assertEqual(
hhmmss,
time.strftime("%H:%M:%S", time.localtime(start_psutil)))
self.assertEqual(
year,
time.strftime("%Y", time.localtime(start_psutil)))
@unittest.skipIf(not MACOS, "MACOS only")
class TestSystemAPIs(PsutilTestCase):
# --- disk
@retry_on_failure()
def test_disks(self):
# test psutil.disk_usage() and psutil.disk_partitions()
# against "df -a"
def df(path):
out = sh('df -k "%s"' % path).strip()
lines = out.split('\n')
lines.pop(0)
line = lines.pop(0)
dev, total, used, free = line.split()[:4]
if dev == 'none':
dev = ''
total = int(total) * 1024
used = int(used) * 1024
free = int(free) * 1024
return dev, total, used, free
for part in psutil.disk_partitions(all=False):
usage = psutil.disk_usage(part.mountpoint)
dev, total, used, free = df(part.mountpoint)
self.assertEqual(part.device, dev)
self.assertEqual(usage.total, total)
self.assertAlmostEqual(usage.free, free,
delta=TOLERANCE_DISK_USAGE)
self.assertAlmostEqual(usage.used, used,
delta=TOLERANCE_DISK_USAGE)
# --- cpu
def test_cpu_count_logical(self):
num = sysctl("sysctl hw.logicalcpu")
self.assertEqual(num, psutil.cpu_count(logical=True))
def test_cpu_count_cores(self):
num = sysctl("sysctl hw.physicalcpu")
self.assertEqual(num, psutil.cpu_count(logical=False))
# TODO: remove this once 1892 is fixed
@unittest.skipIf(platform.machine() == 'arm64', "skipped due to #1892")
def test_cpu_freq(self):
freq = psutil.cpu_freq()
self.assertEqual(
freq.current * 1000 * 1000, sysctl("sysctl hw.cpufrequency"))
self.assertEqual(
freq.min * 1000 * 1000, sysctl("sysctl hw.cpufrequency_min"))
self.assertEqual(
freq.max * 1000 * 1000, sysctl("sysctl hw.cpufrequency_max"))
# --- virtual mem
def test_vmem_total(self):
sysctl_hwphymem = sysctl('sysctl hw.memsize')
self.assertEqual(sysctl_hwphymem, psutil.virtual_memory().total)
@retry_on_failure()
def test_vmem_free(self):
vmstat_val = vm_stat("free")
psutil_val = psutil.virtual_memory().free
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_active(self):
vmstat_val = vm_stat("active")
psutil_val = psutil.virtual_memory().active
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_inactive(self):
vmstat_val = vm_stat("inactive")
psutil_val = psutil.virtual_memory().inactive
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_vmem_wired(self):
vmstat_val = vm_stat("wired")
psutil_val = psutil.virtual_memory().wired
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
# --- swap mem
@retry_on_failure()
def test_swapmem_sin(self):
vmstat_val = vm_stat("Pageins")
psutil_val = psutil.swap_memory().sin
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
@retry_on_failure()
def test_swapmem_sout(self):
vmstat_val = vm_stat("Pageout")
psutil_val = psutil.swap_memory().sout
self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM)
# --- network
def test_net_if_stats(self):
for name, stats in psutil.net_if_stats().items():
try:
out = sh("ifconfig %s" % name)
except RuntimeError:
pass
else:
self.assertEqual(stats.isup, 'RUNNING' in out, msg=out)
self.assertEqual(stats.mtu,
int(re.findall(r'mtu (\d+)', out)[0]))
# --- sensors_battery
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_sensors_battery(self):
out = sh("pmset -g batt")
percent = re.search(r"(\d+)%", out).group(1)
drawing_from = re.search("Now drawing from '([^']+)'", out).group(1)
power_plugged = drawing_from == "AC Power"
psutil_result = psutil.sensors_battery()
self.assertEqual(psutil_result.power_plugged, power_plugged)
self.assertEqual(psutil_result.percent, int(percent))
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""POSIX specific tests."""
import datetime
import errno
import os
import re
import subprocess
import time
import unittest
import psutil
from psutil import AIX
from psutil import BSD
from psutil import LINUX
from psutil import MACOS
from psutil import OPENBSD
from psutil import POSIX
from psutil import SUNOS
from psutil.tests import HAS_NET_IO_COUNTERS
from psutil.tests import PYTHON_EXE
from psutil.tests import PsutilTestCase
from psutil.tests import mock
from psutil.tests import retry_on_failure
from psutil.tests import sh
from psutil.tests import skip_on_access_denied
from psutil.tests import spawn_testproc
from psutil.tests import terminate
from psutil.tests import which
if POSIX:
import mmap
import resource
from psutil._psutil_posix import getpagesize
def ps(fmt, pid=None):
"""
Wrapper for calling the ps command with a little bit of cross-platform
support for a narrow range of features.
"""
cmd = ['ps']
if LINUX:
cmd.append('--no-headers')
if pid is not None:
cmd.extend(['-p', str(pid)])
else:
if SUNOS or AIX:
cmd.append('-A')
else:
cmd.append('ax')
if SUNOS:
# XXX: set() has not get() method so this cannot work; not sure
# what I meant in here.
fmt_map = set(('command', 'comm', 'start', 'stime'))
fmt = fmt_map.get(fmt, fmt)
cmd.extend(['-o', fmt])
output = sh(cmd)
if LINUX:
output = output.splitlines()
else:
output = output.splitlines()[1:]
all_output = []
for line in output:
line = line.strip()
try:
line = int(line)
except ValueError:
pass
all_output.append(line)
if pid is None:
return all_output
else:
return all_output[0]
# ps "-o" field names differ wildly between platforms.
# "comm" means "only executable name" but is not available on BSD platforms.
# "args" means "command with all its arguments", and is also not available
# on BSD platforms.
# "command" is like "args" on most platforms, but like "comm" on AIX,
# and not available on SUNOS.
# so for the executable name we can use "comm" on Solaris and split "command"
# on other platforms.
# to get the cmdline (with args) we have to use "args" on AIX and
# Solaris, and can use "command" on all others.
def ps_name(pid):
field = "command"
if SUNOS:
field = "comm"
return ps(field, pid).split()[0]
def ps_args(pid):
field = "command"
if AIX or SUNOS:
field = "args"
out = ps(field, pid)
# observed on BSD + Github CI: '/usr/local/bin/python3 -E -O (python3.9)'
out = re.sub(r"\(python.*?\)$", "", out)
return out.strip()
def ps_rss(pid):
field = "rss"
if AIX:
field = "rssize"
return ps(field, pid)
def ps_vsz(pid):
field = "vsz"
if AIX:
field = "vsize"
return ps(field, pid)
@unittest.skipIf(not POSIX, "POSIX only")
class TestProcess(PsutilTestCase):
"""Compare psutil results against 'ps' command line utility (mainly)."""
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc([PYTHON_EXE, "-E", "-O"],
stdin=subprocess.PIPE).pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
def test_ppid(self):
ppid_ps = ps('ppid', self.pid)
ppid_psutil = psutil.Process(self.pid).ppid()
self.assertEqual(ppid_ps, ppid_psutil)
def test_uid(self):
uid_ps = ps('uid', self.pid)
uid_psutil = psutil.Process(self.pid).uids().real
self.assertEqual(uid_ps, uid_psutil)
def test_gid(self):
gid_ps = ps('rgid', self.pid)
gid_psutil = psutil.Process(self.pid).gids().real
self.assertEqual(gid_ps, gid_psutil)
def test_username(self):
username_ps = ps('user', self.pid)
username_psutil = psutil.Process(self.pid).username()
self.assertEqual(username_ps, username_psutil)
def test_username_no_resolution(self):
# Emulate a case where the system can't resolve the uid to
# a username in which case psutil is supposed to return
# the stringified uid.
p = psutil.Process()
with mock.patch("psutil.pwd.getpwuid", side_effect=KeyError) as fun:
self.assertEqual(p.username(), str(p.uids().real))
assert fun.called
@skip_on_access_denied()
@retry_on_failure()
def test_rss_memory(self):
# give python interpreter some time to properly initialize
# so that the results are the same
time.sleep(0.1)
rss_ps = ps_rss(self.pid)
rss_psutil = psutil.Process(self.pid).memory_info()[0] / 1024
self.assertEqual(rss_ps, rss_psutil)
@skip_on_access_denied()
@retry_on_failure()
def test_vsz_memory(self):
# give python interpreter some time to properly initialize
# so that the results are the same
time.sleep(0.1)
vsz_ps = ps_vsz(self.pid)
vsz_psutil = psutil.Process(self.pid).memory_info()[1] / 1024
self.assertEqual(vsz_ps, vsz_psutil)
def test_name(self):
name_ps = ps_name(self.pid)
# remove path if there is any, from the command
name_ps = os.path.basename(name_ps).lower()
name_psutil = psutil.Process(self.pid).name().lower()
# ...because of how we calculate PYTHON_EXE; on MACOS this may
# be "pythonX.Y".
name_ps = re.sub(r"\d.\d", "", name_ps)
name_psutil = re.sub(r"\d.\d", "", name_psutil)
# ...may also be "python.X"
name_ps = re.sub(r"\d", "", name_ps)
name_psutil = re.sub(r"\d", "", name_psutil)
self.assertEqual(name_ps, name_psutil)
def test_name_long(self):
# On UNIX the kernel truncates the name to the first 15
# characters. In such a case psutil tries to determine the
# full name from the cmdline.
name = "long-program-name"
cmdline = ["long-program-name-extended", "foo", "bar"]
with mock.patch("psutil._psplatform.Process.name",
return_value=name):
with mock.patch("psutil._psplatform.Process.cmdline",
return_value=cmdline):
p = psutil.Process()
self.assertEqual(p.name(), "long-program-name-extended")
def test_name_long_cmdline_ad_exc(self):
# Same as above but emulates a case where cmdline() raises
# AccessDenied in which case psutil is supposed to return
# the truncated name instead of crashing.
name = "long-program-name"
with mock.patch("psutil._psplatform.Process.name",
return_value=name):
with mock.patch("psutil._psplatform.Process.cmdline",
side_effect=psutil.AccessDenied(0, "")):
p = psutil.Process()
self.assertEqual(p.name(), "long-program-name")
def test_name_long_cmdline_nsp_exc(self):
# Same as above but emulates a case where cmdline() raises NSP
# which is supposed to propagate.
name = "long-program-name"
with mock.patch("psutil._psplatform.Process.name",
return_value=name):
with mock.patch("psutil._psplatform.Process.cmdline",
side_effect=psutil.NoSuchProcess(0, "")):
p = psutil.Process()
self.assertRaises(psutil.NoSuchProcess, p.name)
@unittest.skipIf(MACOS or BSD, 'ps -o start not available')
def test_create_time(self):
time_ps = ps('start', self.pid)
time_psutil = psutil.Process(self.pid).create_time()
time_psutil_tstamp = datetime.datetime.fromtimestamp(
time_psutil).strftime("%H:%M:%S")
# sometimes ps shows the time rounded up instead of down, so we check
# for both possible values
round_time_psutil = round(time_psutil)
round_time_psutil_tstamp = datetime.datetime.fromtimestamp(
round_time_psutil).strftime("%H:%M:%S")
self.assertIn(time_ps, [time_psutil_tstamp, round_time_psutil_tstamp])
def test_exe(self):
ps_pathname = ps_name(self.pid)
psutil_pathname = psutil.Process(self.pid).exe()
try:
self.assertEqual(ps_pathname, psutil_pathname)
except AssertionError:
# certain platforms such as BSD are more accurate returning:
# "/usr/local/bin/python2.7"
# ...instead of:
# "/usr/local/bin/python"
# We do not want to consider this difference in accuracy
# an error.
adjusted_ps_pathname = ps_pathname[:len(ps_pathname)]
self.assertEqual(ps_pathname, adjusted_ps_pathname)
# On macOS the official python installer exposes a python wrapper that
# executes a python executable hidden inside an application bundle inside
# the Python framework.
# There's a race condition between the ps call & the psutil call below
# depending on the completion of the execve call so let's retry on failure
@retry_on_failure()
def test_cmdline(self):
ps_cmdline = ps_args(self.pid)
psutil_cmdline = " ".join(psutil.Process(self.pid).cmdline())
self.assertEqual(ps_cmdline, psutil_cmdline)
# On SUNOS "ps" reads niceness /proc/pid/psinfo which returns an
# incorrect value (20); the real deal is getpriority(2) which
# returns 0; psutil relies on it, see:
# https://github.com/giampaolo/psutil/issues/1082
# AIX has the same issue
@unittest.skipIf(SUNOS, "not reliable on SUNOS")
@unittest.skipIf(AIX, "not reliable on AIX")
def test_nice(self):
ps_nice = ps('nice', self.pid)
psutil_nice = psutil.Process().nice()
self.assertEqual(ps_nice, psutil_nice)
@unittest.skipIf(not POSIX, "POSIX only")
class TestSystemAPIs(PsutilTestCase):
"""Test some system APIs."""
@retry_on_failure()
def test_pids(self):
# Note: this test might fail if the OS is starting/killing
# other processes in the meantime
pids_ps = sorted(ps("pid"))
pids_psutil = psutil.pids()
# on MACOS and OPENBSD ps doesn't show pid 0
if MACOS or OPENBSD and 0 not in pids_ps:
pids_ps.insert(0, 0)
# There will often be one more process in pids_ps for ps itself
if len(pids_ps) - len(pids_psutil) > 1:
difference = [x for x in pids_psutil if x not in pids_ps] + \
[x for x in pids_ps if x not in pids_psutil]
raise self.fail("difference: " + str(difference))
# for some reason ifconfig -a does not report all interfaces
# returned by psutil
@unittest.skipIf(SUNOS, "unreliable on SUNOS")
@unittest.skipIf(not which('ifconfig'), "no ifconfig cmd")
@unittest.skipIf(not HAS_NET_IO_COUNTERS, "not supported")
def test_nic_names(self):
output = sh("ifconfig -a")
for nic in psutil.net_io_counters(pernic=True).keys():
for line in output.split():
if line.startswith(nic):
break
else:
raise self.fail(
"couldn't find %s nic in 'ifconfig -a' output\n%s" % (
nic, output))
# @unittest.skipIf(CI_TESTING and not psutil.users(), "unreliable on CI")
@retry_on_failure()
def test_users(self):
out = sh("who -u")
if not out.strip():
raise self.skipTest("no users on this system")
lines = out.split('\n')
users = [x.split()[0] for x in lines]
terminals = [x.split()[1] for x in lines]
self.assertEqual(len(users), len(psutil.users()))
with self.subTest(psutil=psutil.users(), who=out):
for idx, u in enumerate(psutil.users()):
self.assertEqual(u.name, users[idx])
self.assertEqual(u.terminal, terminals[idx])
if u.pid is not None: # None on OpenBSD
psutil.Process(u.pid)
@retry_on_failure()
def test_users_started(self):
out = sh("who -u")
if not out.strip():
raise self.skipTest("no users on this system")
# '2023-04-11 09:31' (Linux)
started = re.findall(r"\d\d\d\d-\d\d-\d\d \d\d:\d\d", out)
if started:
tstamp = "%Y-%m-%d %H:%M"
else:
# 'Apr 10 22:27' (macOS)
started = re.findall(r"[A-Z][a-z][a-z] \d\d \d\d:\d\d", out)
if started:
tstamp = "%b %d %H:%M"
else:
raise ValueError(
"cannot interpret tstamp in who output\n%s" % (out))
with self.subTest(psutil=psutil.users(), who=out):
for idx, u in enumerate(psutil.users()):
psutil_value = datetime.datetime.fromtimestamp(
u.started).strftime(tstamp)
self.assertEqual(psutil_value, started[idx])
def test_pid_exists_let_raise(self):
# According to "man 2 kill" possible error values for kill
# are (EINVAL, EPERM, ESRCH). Test that any other errno
# results in an exception.
with mock.patch("psutil._psposix.os.kill",
side_effect=OSError(errno.EBADF, "")) as m:
self.assertRaises(OSError, psutil._psposix.pid_exists, os.getpid())
assert m.called
def test_os_waitpid_let_raise(self):
# os.waitpid() is supposed to catch EINTR and ECHILD only.
# Test that any other errno results in an exception.
with mock.patch("psutil._psposix.os.waitpid",
side_effect=OSError(errno.EBADF, "")) as m:
self.assertRaises(OSError, psutil._psposix.wait_pid, os.getpid())
assert m.called
def test_os_waitpid_eintr(self):
# os.waitpid() is supposed to "retry" on EINTR.
with mock.patch("psutil._psposix.os.waitpid",
side_effect=OSError(errno.EINTR, "")) as m:
self.assertRaises(
psutil._psposix.TimeoutExpired,
psutil._psposix.wait_pid, os.getpid(), timeout=0.01)
assert m.called
def test_os_waitpid_bad_ret_status(self):
# Simulate os.waitpid() returning a bad status.
with mock.patch("psutil._psposix.os.waitpid",
return_value=(1, -1)) as m:
self.assertRaises(ValueError,
psutil._psposix.wait_pid, os.getpid())
assert m.called
# AIX can return '-' in df output instead of numbers, e.g. for /proc
@unittest.skipIf(AIX, "unreliable on AIX")
@retry_on_failure()
def test_disk_usage(self):
def df(device):
try:
out = sh("df -k %s" % device).strip()
except RuntimeError as err:
if "device busy" in str(err).lower():
raise self.skipTest("df returned EBUSY")
raise
line = out.split('\n')[1]
fields = line.split()
total = int(fields[1]) * 1024
used = int(fields[2]) * 1024
free = int(fields[3]) * 1024
percent = float(fields[4].replace('%', ''))
return (total, used, free, percent)
tolerance = 4 * 1024 * 1024 # 4MB
for part in psutil.disk_partitions(all=False):
usage = psutil.disk_usage(part.mountpoint)
try:
total, used, free, percent = df(part.device)
except RuntimeError as err:
# see:
# https://travis-ci.org/giampaolo/psutil/jobs/138338464
# https://travis-ci.org/giampaolo/psutil/jobs/138343361
err = str(err).lower()
if "no such file or directory" in err or \
"raw devices not supported" in err or \
"permission denied" in err:
continue
raise
else:
self.assertAlmostEqual(usage.total, total, delta=tolerance)
self.assertAlmostEqual(usage.used, used, delta=tolerance)
self.assertAlmostEqual(usage.free, free, delta=tolerance)
self.assertAlmostEqual(usage.percent, percent, delta=1)
@unittest.skipIf(not POSIX, "POSIX only")
class TestMisc(PsutilTestCase):
def test_getpagesize(self):
pagesize = getpagesize()
self.assertGreater(pagesize, 0)
self.assertEqual(pagesize, resource.getpagesize())
self.assertEqual(pagesize, mmap.PAGESIZE)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Sun OS specific tests."""
import os
import unittest
import psutil
from psutil import SUNOS
from psutil.tests import PsutilTestCase
from psutil.tests import sh
@unittest.skipIf(not SUNOS, "SUNOS only")
class SunOSSpecificTestCase(PsutilTestCase):
def test_swap_memory(self):
out = sh('env PATH=/usr/sbin:/sbin:%s swap -l' % os.environ['PATH'])
lines = out.strip().split('\n')[1:]
if not lines:
raise ValueError('no swap device(s) configured')
total = free = 0
for line in lines:
line = line.split()
t, f = line[-2:]
total += int(int(t) * 512)
free += int(int(f) * 512)
used = total - free
psutil_swap = psutil.swap_memory()
self.assertEqual(psutil_swap.total, total)
self.assertEqual(psutil_swap.used, used)
self.assertEqual(psutil_swap.free, free)
def test_cpu_count(self):
out = sh("/usr/sbin/psrinfo")
self.assertEqual(psutil.cpu_count(), len(out.split('\n')))
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for system APIS."""
import contextlib
import datetime
import errno
import os
import platform
import pprint
import shutil
import signal
import socket
import sys
import time
import unittest
import psutil
from psutil import AIX
from psutil import BSD
from psutil import FREEBSD
from psutil import LINUX
from psutil import MACOS
from psutil import NETBSD
from psutil import OPENBSD
from psutil import POSIX
from psutil import SUNOS
from psutil import WINDOWS
from psutil._compat import FileNotFoundError
from psutil._compat import long
from psutil.tests import ASCII_FS
from psutil.tests import CI_TESTING
from psutil.tests import DEVNULL
from psutil.tests import GITHUB_ACTIONS
from psutil.tests import GLOBAL_TIMEOUT
from psutil.tests import HAS_BATTERY
from psutil.tests import HAS_CPU_FREQ
from psutil.tests import HAS_GETLOADAVG
from psutil.tests import HAS_NET_IO_COUNTERS
from psutil.tests import HAS_SENSORS_BATTERY
from psutil.tests import HAS_SENSORS_FANS
from psutil.tests import HAS_SENSORS_TEMPERATURES
from psutil.tests import IS_64BIT
from psutil.tests import MACOS_12PLUS
from psutil.tests import PYPY
from psutil.tests import UNICODE_SUFFIX
from psutil.tests import PsutilTestCase
from psutil.tests import check_net_address
from psutil.tests import enum
from psutil.tests import mock
from psutil.tests import retry_on_failure
# ===================================================================
# --- System-related API tests
# ===================================================================
class TestProcessAPIs(PsutilTestCase):
def test_process_iter(self):
self.assertIn(os.getpid(), [x.pid for x in psutil.process_iter()])
sproc = self.spawn_testproc()
self.assertIn(sproc.pid, [x.pid for x in psutil.process_iter()])
p = psutil.Process(sproc.pid)
p.kill()
p.wait()
self.assertNotIn(sproc.pid, [x.pid for x in psutil.process_iter()])
with mock.patch('psutil.Process',
side_effect=psutil.NoSuchProcess(os.getpid())):
self.assertEqual(list(psutil.process_iter()), [])
with mock.patch('psutil.Process',
side_effect=psutil.AccessDenied(os.getpid())):
with self.assertRaises(psutil.AccessDenied):
list(psutil.process_iter())
def test_prcess_iter_w_attrs(self):
for p in psutil.process_iter(attrs=['pid']):
self.assertEqual(list(p.info.keys()), ['pid'])
with self.assertRaises(ValueError):
list(psutil.process_iter(attrs=['foo']))
with mock.patch("psutil._psplatform.Process.cpu_times",
side_effect=psutil.AccessDenied(0, "")) as m:
for p in psutil.process_iter(attrs=["pid", "cpu_times"]):
self.assertIsNone(p.info['cpu_times'])
self.assertGreaterEqual(p.info['pid'], 0)
assert m.called
with mock.patch("psutil._psplatform.Process.cpu_times",
side_effect=psutil.AccessDenied(0, "")) as m:
flag = object()
for p in psutil.process_iter(
attrs=["pid", "cpu_times"], ad_value=flag):
self.assertIs(p.info['cpu_times'], flag)
self.assertGreaterEqual(p.info['pid'], 0)
assert m.called
@unittest.skipIf(PYPY and WINDOWS,
"spawn_testproc() unreliable on PYPY + WINDOWS")
def test_wait_procs(self):
def callback(p):
pids.append(p.pid)
pids = []
sproc1 = self.spawn_testproc()
sproc2 = self.spawn_testproc()
sproc3 = self.spawn_testproc()
procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)]
self.assertRaises(ValueError, psutil.wait_procs, procs, timeout=-1)
self.assertRaises(TypeError, psutil.wait_procs, procs, callback=1)
t = time.time()
gone, alive = psutil.wait_procs(procs, timeout=0.01, callback=callback)
self.assertLess(time.time() - t, 0.5)
self.assertEqual(gone, [])
self.assertEqual(len(alive), 3)
self.assertEqual(pids, [])
for p in alive:
self.assertFalse(hasattr(p, 'returncode'))
@retry_on_failure(30)
def test_1(procs, callback):
gone, alive = psutil.wait_procs(procs, timeout=0.03,
callback=callback)
self.assertEqual(len(gone), 1)
self.assertEqual(len(alive), 2)
return gone, alive
sproc3.terminate()
gone, alive = test_1(procs, callback)
self.assertIn(sproc3.pid, [x.pid for x in gone])
if POSIX:
self.assertEqual(gone.pop().returncode, -signal.SIGTERM)
else:
self.assertEqual(gone.pop().returncode, 1)
self.assertEqual(pids, [sproc3.pid])
for p in alive:
self.assertFalse(hasattr(p, 'returncode'))
@retry_on_failure(30)
def test_2(procs, callback):
gone, alive = psutil.wait_procs(procs, timeout=0.03,
callback=callback)
self.assertEqual(len(gone), 3)
self.assertEqual(len(alive), 0)
return gone, alive
sproc1.terminate()
sproc2.terminate()
gone, alive = test_2(procs, callback)
self.assertEqual(set(pids), set([sproc1.pid, sproc2.pid, sproc3.pid]))
for p in gone:
self.assertTrue(hasattr(p, 'returncode'))
@unittest.skipIf(PYPY and WINDOWS,
"spawn_testproc() unreliable on PYPY + WINDOWS")
def test_wait_procs_no_timeout(self):
sproc1 = self.spawn_testproc()
sproc2 = self.spawn_testproc()
sproc3 = self.spawn_testproc()
procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)]
for p in procs:
p.terminate()
psutil.wait_procs(procs)
def test_pid_exists(self):
sproc = self.spawn_testproc()
self.assertTrue(psutil.pid_exists(sproc.pid))
p = psutil.Process(sproc.pid)
p.kill()
p.wait()
self.assertFalse(psutil.pid_exists(sproc.pid))
self.assertFalse(psutil.pid_exists(-1))
self.assertEqual(psutil.pid_exists(0), 0 in psutil.pids())
def test_pid_exists_2(self):
pids = psutil.pids()
for pid in pids:
try:
assert psutil.pid_exists(pid)
except AssertionError:
# in case the process disappeared in meantime fail only
# if it is no longer in psutil.pids()
time.sleep(.1)
self.assertNotIn(pid, psutil.pids())
pids = range(max(pids) + 15000, max(pids) + 16000)
for pid in pids:
self.assertFalse(psutil.pid_exists(pid), msg=pid)
class TestMiscAPIs(PsutilTestCase):
def test_boot_time(self):
bt = psutil.boot_time()
self.assertIsInstance(bt, float)
self.assertGreater(bt, 0)
self.assertLess(bt, time.time())
@unittest.skipIf(CI_TESTING and not psutil.users(), "unreliable on CI")
def test_users(self):
users = psutil.users()
self.assertNotEqual(users, [])
for user in users:
assert user.name, user
self.assertIsInstance(user.name, str)
self.assertIsInstance(user.terminal, (str, type(None)))
if user.host is not None:
self.assertIsInstance(user.host, (str, type(None)))
user.terminal
user.host
assert user.started > 0.0, user
datetime.datetime.fromtimestamp(user.started)
if WINDOWS or OPENBSD:
self.assertIsNone(user.pid)
else:
psutil.Process(user.pid)
def test_test(self):
# test for psutil.test() function
stdout = sys.stdout
sys.stdout = DEVNULL
try:
psutil.test()
finally:
sys.stdout = stdout
def test_os_constants(self):
names = ["POSIX", "WINDOWS", "LINUX", "MACOS", "FREEBSD", "OPENBSD",
"NETBSD", "BSD", "SUNOS"]
for name in names:
self.assertIsInstance(getattr(psutil, name), bool, msg=name)
if os.name == 'posix':
assert psutil.POSIX
assert not psutil.WINDOWS
names.remove("POSIX")
if "linux" in sys.platform.lower():
assert psutil.LINUX
names.remove("LINUX")
elif "bsd" in sys.platform.lower():
assert psutil.BSD
self.assertEqual([psutil.FREEBSD, psutil.OPENBSD,
psutil.NETBSD].count(True), 1)
names.remove("BSD")
names.remove("FREEBSD")
names.remove("OPENBSD")
names.remove("NETBSD")
elif "sunos" in sys.platform.lower() or \
"solaris" in sys.platform.lower():
assert psutil.SUNOS
names.remove("SUNOS")
elif "darwin" in sys.platform.lower():
assert psutil.MACOS
names.remove("MACOS")
else:
assert psutil.WINDOWS
assert not psutil.POSIX
names.remove("WINDOWS")
# assert all other constants are set to False
for name in names:
self.assertIs(getattr(psutil, name), False, msg=name)
class TestMemoryAPIs(PsutilTestCase):
def test_virtual_memory(self):
mem = psutil.virtual_memory()
assert mem.total > 0, mem
assert mem.available > 0, mem
assert 0 <= mem.percent <= 100, mem
assert mem.used > 0, mem
assert mem.free >= 0, mem
for name in mem._fields:
value = getattr(mem, name)
if name != 'percent':
self.assertIsInstance(value, (int, long))
if name != 'total':
if not value >= 0:
raise self.fail("%r < 0 (%s)" % (name, value))
if value > mem.total:
raise self.fail("%r > total (total=%s, %s=%s)"
% (name, mem.total, name, value))
def test_swap_memory(self):
mem = psutil.swap_memory()
self.assertEqual(
mem._fields, ('total', 'used', 'free', 'percent', 'sin', 'sout'))
assert mem.total >= 0, mem
assert mem.used >= 0, mem
if mem.total > 0:
# likely a system with no swap partition
assert mem.free > 0, mem
else:
assert mem.free == 0, mem
assert 0 <= mem.percent <= 100, mem
assert mem.sin >= 0, mem
assert mem.sout >= 0, mem
class TestCpuAPIs(PsutilTestCase):
def test_cpu_count_logical(self):
logical = psutil.cpu_count()
self.assertIsNotNone(logical)
self.assertEqual(logical, len(psutil.cpu_times(percpu=True)))
self.assertGreaterEqual(logical, 1)
#
if os.path.exists("/proc/cpuinfo"):
with open("/proc/cpuinfo") as fd:
cpuinfo_data = fd.read()
if "physical id" not in cpuinfo_data:
raise unittest.SkipTest("cpuinfo doesn't include physical id")
def test_cpu_count_cores(self):
logical = psutil.cpu_count()
cores = psutil.cpu_count(logical=False)
if cores is None:
raise self.skipTest("cpu_count_cores() is None")
if WINDOWS and sys.getwindowsversion()[:2] <= (6, 1): # <= Vista
self.assertIsNone(cores)
else:
self.assertGreaterEqual(cores, 1)
self.assertGreaterEqual(logical, cores)
def test_cpu_count_none(self):
# https://github.com/giampaolo/psutil/issues/1085
for val in (-1, 0, None):
with mock.patch('psutil._psplatform.cpu_count_logical',
return_value=val) as m:
self.assertIsNone(psutil.cpu_count())
assert m.called
with mock.patch('psutil._psplatform.cpu_count_cores',
return_value=val) as m:
self.assertIsNone(psutil.cpu_count(logical=False))
assert m.called
def test_cpu_times(self):
# Check type, value >= 0, str().
total = 0
times = psutil.cpu_times()
sum(times)
for cp_time in times:
self.assertIsInstance(cp_time, float)
self.assertGreaterEqual(cp_time, 0.0)
total += cp_time
self.assertEqual(total, sum(times))
str(times)
# CPU times are always supposed to increase over time
# or at least remain the same and that's because time
# cannot go backwards.
# Surprisingly sometimes this might not be the case (at
# least on Windows and Linux), see:
# https://github.com/giampaolo/psutil/issues/392
# https://github.com/giampaolo/psutil/issues/645
# if not WINDOWS:
# last = psutil.cpu_times()
# for x in range(100):
# new = psutil.cpu_times()
# for field in new._fields:
# new_t = getattr(new, field)
# last_t = getattr(last, field)
# self.assertGreaterEqual(new_t, last_t,
# msg="%s %s" % (new_t, last_t))
# last = new
def test_cpu_times_time_increases(self):
# Make sure time increases between calls.
t1 = sum(psutil.cpu_times())
stop_at = time.time() + GLOBAL_TIMEOUT
while time.time() < stop_at:
t2 = sum(psutil.cpu_times())
if t2 > t1:
return
raise self.fail("time remained the same")
def test_per_cpu_times(self):
# Check type, value >= 0, str().
for times in psutil.cpu_times(percpu=True):
total = 0
sum(times)
for cp_time in times:
self.assertIsInstance(cp_time, float)
self.assertGreaterEqual(cp_time, 0.0)
total += cp_time
self.assertEqual(total, sum(times))
str(times)
self.assertEqual(len(psutil.cpu_times(percpu=True)[0]),
len(psutil.cpu_times(percpu=False)))
# Note: in theory CPU times are always supposed to increase over
# time or remain the same but never go backwards. In practice
# sometimes this is not the case.
# This issue seemd to be afflict Windows:
# https://github.com/giampaolo/psutil/issues/392
# ...but it turns out also Linux (rarely) behaves the same.
# last = psutil.cpu_times(percpu=True)
# for x in range(100):
# new = psutil.cpu_times(percpu=True)
# for index in range(len(new)):
# newcpu = new[index]
# lastcpu = last[index]
# for field in newcpu._fields:
# new_t = getattr(newcpu, field)
# last_t = getattr(lastcpu, field)
# self.assertGreaterEqual(
# new_t, last_t, msg="%s %s" % (lastcpu, newcpu))
# last = new
def test_per_cpu_times_2(self):
# Simulate some work load then make sure time have increased
# between calls.
tot1 = psutil.cpu_times(percpu=True)
giveup_at = time.time() + GLOBAL_TIMEOUT
while True:
if time.time() >= giveup_at:
return self.fail("timeout")
tot2 = psutil.cpu_times(percpu=True)
for t1, t2 in zip(tot1, tot2):
t1, t2 = psutil._cpu_busy_time(t1), psutil._cpu_busy_time(t2)
difference = t2 - t1
if difference >= 0.05:
return
def test_cpu_times_comparison(self):
# Make sure the sum of all per cpu times is almost equal to
# base "one cpu" times.
base = psutil.cpu_times()
per_cpu = psutil.cpu_times(percpu=True)
summed_values = base._make([sum(num) for num in zip(*per_cpu)])
for field in base._fields:
self.assertAlmostEqual(
getattr(base, field), getattr(summed_values, field), delta=1)
def _test_cpu_percent(self, percent, last_ret, new_ret):
try:
self.assertIsInstance(percent, float)
self.assertGreaterEqual(percent, 0.0)
self.assertIsNot(percent, -0.0)
self.assertLessEqual(percent, 100.0 * psutil.cpu_count())
except AssertionError as err:
raise AssertionError("\n%s\nlast=%s\nnew=%s" % (
err, pprint.pformat(last_ret), pprint.pformat(new_ret)))
def test_cpu_percent(self):
last = psutil.cpu_percent(interval=0.001)
for _ in range(100):
new = psutil.cpu_percent(interval=None)
self._test_cpu_percent(new, last, new)
last = new
with self.assertRaises(ValueError):
psutil.cpu_percent(interval=-1)
def test_per_cpu_percent(self):
last = psutil.cpu_percent(interval=0.001, percpu=True)
self.assertEqual(len(last), psutil.cpu_count())
for _ in range(100):
new = psutil.cpu_percent(interval=None, percpu=True)
for percent in new:
self._test_cpu_percent(percent, last, new)
last = new
with self.assertRaises(ValueError):
psutil.cpu_percent(interval=-1, percpu=True)
def test_cpu_times_percent(self):
last = psutil.cpu_times_percent(interval=0.001)
for _ in range(100):
new = psutil.cpu_times_percent(interval=None)
for percent in new:
self._test_cpu_percent(percent, last, new)
self._test_cpu_percent(sum(new), last, new)
last = new
with self.assertRaises(ValueError):
psutil.cpu_times_percent(interval=-1)
def test_per_cpu_times_percent(self):
last = psutil.cpu_times_percent(interval=0.001, percpu=True)
self.assertEqual(len(last), psutil.cpu_count())
for _ in range(100):
new = psutil.cpu_times_percent(interval=None, percpu=True)
for cpu in new:
for percent in cpu:
self._test_cpu_percent(percent, last, new)
self._test_cpu_percent(sum(cpu), last, new)
last = new
def test_per_cpu_times_percent_negative(self):
# see: https://github.com/giampaolo/psutil/issues/645
psutil.cpu_times_percent(percpu=True)
zero_times = [x._make([0 for x in range(len(x._fields))])
for x in psutil.cpu_times(percpu=True)]
with mock.patch('psutil.cpu_times', return_value=zero_times):
for cpu in psutil.cpu_times_percent(percpu=True):
for percent in cpu:
self._test_cpu_percent(percent, None, None)
def test_cpu_stats(self):
# Tested more extensively in per-platform test modules.
infos = psutil.cpu_stats()
self.assertEqual(
infos._fields,
('ctx_switches', 'interrupts', 'soft_interrupts', 'syscalls'))
for name in infos._fields:
value = getattr(infos, name)
self.assertGreaterEqual(value, 0)
# on AIX, ctx_switches is always 0
if not AIX and name in ('ctx_switches', 'interrupts'):
self.assertGreater(value, 0)
# TODO: remove this once 1892 is fixed
@unittest.skipIf(MACOS and platform.machine() == 'arm64',
"skipped due to #1892")
@unittest.skipIf(not HAS_CPU_FREQ, "not supported")
def test_cpu_freq(self):
def check_ls(ls):
for nt in ls:
self.assertEqual(nt._fields, ('current', 'min', 'max'))
if nt.max != 0.0:
self.assertLessEqual(nt.current, nt.max)
for name in nt._fields:
value = getattr(nt, name)
self.assertIsInstance(value, (int, long, float))
self.assertGreaterEqual(value, 0)
ls = psutil.cpu_freq(percpu=True)
if FREEBSD and not ls:
raise self.skipTest("returns empty list on FreeBSD")
assert ls, ls
check_ls([psutil.cpu_freq(percpu=False)])
if LINUX:
self.assertEqual(len(ls), psutil.cpu_count())
@unittest.skipIf(not HAS_GETLOADAVG, "not supported")
def test_getloadavg(self):
loadavg = psutil.getloadavg()
self.assertEqual(len(loadavg), 3)
for load in loadavg:
self.assertIsInstance(load, float)
self.assertGreaterEqual(load, 0.0)
class TestDiskAPIs(PsutilTestCase):
@unittest.skipIf(PYPY and not IS_64BIT, "unreliable on PYPY32 + 32BIT")
def test_disk_usage(self):
usage = psutil.disk_usage(os.getcwd())
self.assertEqual(usage._fields, ('total', 'used', 'free', 'percent'))
assert usage.total > 0, usage
assert usage.used > 0, usage
assert usage.free > 0, usage
assert usage.total > usage.used, usage
assert usage.total > usage.free, usage
assert 0 <= usage.percent <= 100, usage.percent
if hasattr(shutil, 'disk_usage'):
# py >= 3.3, see: http://bugs.python.org/issue12442
shutil_usage = shutil.disk_usage(os.getcwd())
tolerance = 5 * 1024 * 1024 # 5MB
self.assertEqual(usage.total, shutil_usage.total)
self.assertAlmostEqual(usage.free, shutil_usage.free,
delta=tolerance)
if not MACOS_12PLUS:
# see https://github.com/giampaolo/psutil/issues/2147
self.assertAlmostEqual(usage.used, shutil_usage.used,
delta=tolerance)
# if path does not exist OSError ENOENT is expected across
# all platforms
fname = self.get_testfn()
with self.assertRaises(FileNotFoundError):
psutil.disk_usage(fname)
@unittest.skipIf(not ASCII_FS, "not an ASCII fs")
def test_disk_usage_unicode(self):
# See: https://github.com/giampaolo/psutil/issues/416
with self.assertRaises(UnicodeEncodeError):
psutil.disk_usage(UNICODE_SUFFIX)
def test_disk_usage_bytes(self):
psutil.disk_usage(b'.')
def test_disk_partitions(self):
def check_ntuple(nt):
self.assertIsInstance(nt.device, str)
self.assertIsInstance(nt.mountpoint, str)
self.assertIsInstance(nt.fstype, str)
self.assertIsInstance(nt.opts, str)
self.assertIsInstance(nt.maxfile, (int, type(None)))
self.assertIsInstance(nt.maxpath, (int, type(None)))
if nt.maxfile is not None and not GITHUB_ACTIONS:
self.assertGreater(nt.maxfile, 0)
if nt.maxpath is not None:
self.assertGreater(nt.maxpath, 0)
# all = False
ls = psutil.disk_partitions(all=False)
self.assertTrue(ls, msg=ls)
for disk in ls:
check_ntuple(disk)
if WINDOWS and 'cdrom' in disk.opts:
continue
if not POSIX:
assert os.path.exists(disk.device), disk
else:
# we cannot make any assumption about this, see:
# http://goo.gl/p9c43
disk.device
# on modern systems mount points can also be files
assert os.path.exists(disk.mountpoint), disk
assert disk.fstype, disk
# all = True
ls = psutil.disk_partitions(all=True)
self.assertTrue(ls, msg=ls)
for disk in psutil.disk_partitions(all=True):
check_ntuple(disk)
if not WINDOWS and disk.mountpoint:
try:
os.stat(disk.mountpoint)
except OSError as err:
if GITHUB_ACTIONS and MACOS and err.errno == errno.EIO:
continue
# http://mail.python.org/pipermail/python-dev/
# 2012-June/120787.html
if err.errno not in (errno.EPERM, errno.EACCES):
raise
else:
assert os.path.exists(disk.mountpoint), disk
# ---
def find_mount_point(path):
path = os.path.abspath(path)
while not os.path.ismount(path):
path = os.path.dirname(path)
return path.lower()
mount = find_mount_point(__file__)
mounts = [x.mountpoint.lower() for x in
psutil.disk_partitions(all=True) if x.mountpoint]
self.assertIn(mount, mounts)
@unittest.skipIf(LINUX and not os.path.exists('/proc/diskstats'),
'/proc/diskstats not available on this linux version')
@unittest.skipIf(CI_TESTING and not psutil.disk_io_counters(),
"unreliable on CI") # no visible disks
def test_disk_io_counters(self):
def check_ntuple(nt):
self.assertEqual(nt[0], nt.read_count)
self.assertEqual(nt[1], nt.write_count)
self.assertEqual(nt[2], nt.read_bytes)
self.assertEqual(nt[3], nt.write_bytes)
if not (OPENBSD or NETBSD):
self.assertEqual(nt[4], nt.read_time)
self.assertEqual(nt[5], nt.write_time)
if LINUX:
self.assertEqual(nt[6], nt.read_merged_count)
self.assertEqual(nt[7], nt.write_merged_count)
self.assertEqual(nt[8], nt.busy_time)
elif FREEBSD:
self.assertEqual(nt[6], nt.busy_time)
for name in nt._fields:
assert getattr(nt, name) >= 0, nt
ret = psutil.disk_io_counters(perdisk=False)
assert ret is not None, "no disks on this system?"
check_ntuple(ret)
ret = psutil.disk_io_counters(perdisk=True)
# make sure there are no duplicates
self.assertEqual(len(ret), len(set(ret)))
for key in ret:
assert key, key
check_ntuple(ret[key])
def test_disk_io_counters_no_disks(self):
# Emulate a case where no disks are installed, see:
# https://github.com/giampaolo/psutil/issues/1062
with mock.patch('psutil._psplatform.disk_io_counters',
return_value={}) as m:
self.assertIsNone(psutil.disk_io_counters(perdisk=False))
self.assertEqual(psutil.disk_io_counters(perdisk=True), {})
assert m.called
class TestNetAPIs(PsutilTestCase):
@unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
def test_net_io_counters(self):
def check_ntuple(nt):
self.assertEqual(nt[0], nt.bytes_sent)
self.assertEqual(nt[1], nt.bytes_recv)
self.assertEqual(nt[2], nt.packets_sent)
self.assertEqual(nt[3], nt.packets_recv)
self.assertEqual(nt[4], nt.errin)
self.assertEqual(nt[5], nt.errout)
self.assertEqual(nt[6], nt.dropin)
self.assertEqual(nt[7], nt.dropout)
assert nt.bytes_sent >= 0, nt
assert nt.bytes_recv >= 0, nt
assert nt.packets_sent >= 0, nt
assert nt.packets_recv >= 0, nt
assert nt.errin >= 0, nt
assert nt.errout >= 0, nt
assert nt.dropin >= 0, nt
assert nt.dropout >= 0, nt
ret = psutil.net_io_counters(pernic=False)
check_ntuple(ret)
ret = psutil.net_io_counters(pernic=True)
self.assertNotEqual(ret, [])
for key in ret:
self.assertTrue(key)
self.assertIsInstance(key, str)
check_ntuple(ret[key])
@unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
def test_net_io_counters_no_nics(self):
# Emulate a case where no NICs are installed, see:
# https://github.com/giampaolo/psutil/issues/1062
with mock.patch('psutil._psplatform.net_io_counters',
return_value={}) as m:
self.assertIsNone(psutil.net_io_counters(pernic=False))
self.assertEqual(psutil.net_io_counters(pernic=True), {})
assert m.called
def test_net_if_addrs(self):
nics = psutil.net_if_addrs()
assert nics, nics
nic_stats = psutil.net_if_stats()
# Not reliable on all platforms (net_if_addrs() reports more
# interfaces).
# self.assertEqual(sorted(nics.keys()),
# sorted(psutil.net_io_counters(pernic=True).keys()))
families = set([socket.AF_INET, socket.AF_INET6, psutil.AF_LINK])
for nic, addrs in nics.items():
self.assertIsInstance(nic, str)
self.assertEqual(len(set(addrs)), len(addrs))
for addr in addrs:
self.assertIsInstance(addr.family, int)
self.assertIsInstance(addr.address, str)
self.assertIsInstance(addr.netmask, (str, type(None)))
self.assertIsInstance(addr.broadcast, (str, type(None)))
self.assertIn(addr.family, families)
if sys.version_info >= (3, 4) and not PYPY:
self.assertIsInstance(addr.family, enum.IntEnum)
if nic_stats[nic].isup:
# Do not test binding to addresses of interfaces
# that are down
if addr.family == socket.AF_INET:
s = socket.socket(addr.family)
with contextlib.closing(s):
s.bind((addr.address, 0))
elif addr.family == socket.AF_INET6:
info = socket.getaddrinfo(
addr.address, 0, socket.AF_INET6,
socket.SOCK_STREAM, 0, socket.AI_PASSIVE)[0]
af, socktype, proto, canonname, sa = info
s = socket.socket(af, socktype, proto)
with contextlib.closing(s):
s.bind(sa)
for ip in (addr.address, addr.netmask, addr.broadcast,
addr.ptp):
if ip is not None:
# TODO: skip AF_INET6 for now because I get:
# AddressValueError: Only hex digits permitted in
# u'c6f3%lxcbr0' in u'fe80::c8e0:fff:fe54:c6f3%lxcbr0'
if addr.family != socket.AF_INET6:
check_net_address(ip, addr.family)
# broadcast and ptp addresses are mutually exclusive
if addr.broadcast:
self.assertIsNone(addr.ptp)
elif addr.ptp:
self.assertIsNone(addr.broadcast)
if BSD or MACOS or SUNOS:
if hasattr(socket, "AF_LINK"):
self.assertEqual(psutil.AF_LINK, socket.AF_LINK)
elif LINUX:
self.assertEqual(psutil.AF_LINK, socket.AF_PACKET)
elif WINDOWS:
self.assertEqual(psutil.AF_LINK, -1)
def test_net_if_addrs_mac_null_bytes(self):
# Simulate that the underlying C function returns an incomplete
# MAC address. psutil is supposed to fill it with null bytes.
# https://github.com/giampaolo/psutil/issues/786
if POSIX:
ret = [('em1', psutil.AF_LINK, '06:3d:29', None, None, None)]
else:
ret = [('em1', -1, '06-3d-29', None, None, None)]
with mock.patch('psutil._psplatform.net_if_addrs',
return_value=ret) as m:
addr = psutil.net_if_addrs()['em1'][0]
assert m.called
if POSIX:
self.assertEqual(addr.address, '06:3d:29:00:00:00')
else:
self.assertEqual(addr.address, '06-3d-29-00-00-00')
def test_net_if_stats(self):
nics = psutil.net_if_stats()
assert nics, nics
all_duplexes = (psutil.NIC_DUPLEX_FULL,
psutil.NIC_DUPLEX_HALF,
psutil.NIC_DUPLEX_UNKNOWN)
for name, stats in nics.items():
self.assertIsInstance(name, str)
isup, duplex, speed, mtu, flags = stats
self.assertIsInstance(isup, bool)
self.assertIn(duplex, all_duplexes)
self.assertIn(duplex, all_duplexes)
self.assertGreaterEqual(speed, 0)
self.assertGreaterEqual(mtu, 0)
self.assertIsInstance(flags, str)
@unittest.skipIf(not (LINUX or BSD or MACOS),
"LINUX or BSD or MACOS specific")
def test_net_if_stats_enodev(self):
# See: https://github.com/giampaolo/psutil/issues/1279
with mock.patch('psutil._psutil_posix.net_if_mtu',
side_effect=OSError(errno.ENODEV, "")) as m:
ret = psutil.net_if_stats()
self.assertEqual(ret, {})
assert m.called
class TestSensorsAPIs(PsutilTestCase):
@unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
def test_sensors_temperatures(self):
temps = psutil.sensors_temperatures()
for name, entries in temps.items():
self.assertIsInstance(name, str)
for entry in entries:
self.assertIsInstance(entry.label, str)
if entry.current is not None:
self.assertGreaterEqual(entry.current, 0)
if entry.high is not None:
self.assertGreaterEqual(entry.high, 0)
if entry.critical is not None:
self.assertGreaterEqual(entry.critical, 0)
@unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
def test_sensors_temperatures_fahreneit(self):
d = {'coretemp': [('label', 50.0, 60.0, 70.0)]}
with mock.patch("psutil._psplatform.sensors_temperatures",
return_value=d) as m:
temps = psutil.sensors_temperatures(
fahrenheit=True)['coretemp'][0]
assert m.called
self.assertEqual(temps.current, 122.0)
self.assertEqual(temps.high, 140.0)
self.assertEqual(temps.critical, 158.0)
@unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported")
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_sensors_battery(self):
ret = psutil.sensors_battery()
self.assertGreaterEqual(ret.percent, 0)
self.assertLessEqual(ret.percent, 100)
if ret.secsleft not in (psutil.POWER_TIME_UNKNOWN,
psutil.POWER_TIME_UNLIMITED):
self.assertGreaterEqual(ret.secsleft, 0)
else:
if ret.secsleft == psutil.POWER_TIME_UNLIMITED:
self.assertTrue(ret.power_plugged)
self.assertIsInstance(ret.power_plugged, bool)
@unittest.skipIf(not HAS_SENSORS_FANS, "not supported")
def test_sensors_fans(self):
fans = psutil.sensors_fans()
for name, entries in fans.items():
self.assertIsInstance(name, str)
for entry in entries:
self.assertIsInstance(entry.label, str)
self.assertIsInstance(entry.current, (int, long))
self.assertGreaterEqual(entry.current, 0)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Tests for testing utils (psutil.tests namespace).
"""
import collections
import contextlib
import errno
import os
import socket
import stat
import subprocess
import unittest
import psutil
import psutil.tests
from psutil import FREEBSD
from psutil import NETBSD
from psutil import POSIX
from psutil._common import open_binary
from psutil._common import open_text
from psutil._common import supports_ipv6
from psutil.tests import CI_TESTING
from psutil.tests import COVERAGE
from psutil.tests import HAS_CONNECTIONS_UNIX
from psutil.tests import PYTHON_EXE
from psutil.tests import PYTHON_EXE_ENV
from psutil.tests import PsutilTestCase
from psutil.tests import TestMemoryLeak
from psutil.tests import bind_socket
from psutil.tests import bind_unix_socket
from psutil.tests import call_until
from psutil.tests import chdir
from psutil.tests import create_sockets
from psutil.tests import get_free_port
from psutil.tests import is_namedtuple
from psutil.tests import mock
from psutil.tests import process_namespace
from psutil.tests import reap_children
from psutil.tests import retry
from psutil.tests import retry_on_failure
from psutil.tests import safe_mkdir
from psutil.tests import safe_rmpath
from psutil.tests import serialrun
from psutil.tests import system_namespace
from psutil.tests import tcp_socketpair
from psutil.tests import terminate
from psutil.tests import unix_socketpair
from psutil.tests import wait_for_file
from psutil.tests import wait_for_pid
# ===================================================================
# --- Unit tests for test utilities.
# ===================================================================
class TestRetryDecorator(PsutilTestCase):
@mock.patch('time.sleep')
def test_retry_success(self, sleep):
# Fail 3 times out of 5; make sure the decorated fun returns.
@retry(retries=5, interval=1, logfun=None)
def foo():
while queue:
queue.pop()
1 / 0
return 1
queue = list(range(3))
self.assertEqual(foo(), 1)
self.assertEqual(sleep.call_count, 3)
@mock.patch('time.sleep')
def test_retry_failure(self, sleep):
# Fail 6 times out of 5; th function is supposed to raise exc.
@retry(retries=5, interval=1, logfun=None)
def foo():
while queue:
queue.pop()
1 / 0
return 1
queue = list(range(6))
self.assertRaises(ZeroDivisionError, foo)
self.assertEqual(sleep.call_count, 5)
@mock.patch('time.sleep')
def test_exception_arg(self, sleep):
@retry(exception=ValueError, interval=1)
def foo():
raise TypeError
self.assertRaises(TypeError, foo)
self.assertEqual(sleep.call_count, 0)
@mock.patch('time.sleep')
def test_no_interval_arg(self, sleep):
# if interval is not specified sleep is not supposed to be called
@retry(retries=5, interval=None, logfun=None)
def foo():
1 / 0
self.assertRaises(ZeroDivisionError, foo)
self.assertEqual(sleep.call_count, 0)
@mock.patch('time.sleep')
def test_retries_arg(self, sleep):
@retry(retries=5, interval=1, logfun=None)
def foo():
1 / 0
self.assertRaises(ZeroDivisionError, foo)
self.assertEqual(sleep.call_count, 5)
@mock.patch('time.sleep')
def test_retries_and_timeout_args(self, sleep):
self.assertRaises(ValueError, retry, retries=5, timeout=1)
class TestSyncTestUtils(PsutilTestCase):
def test_wait_for_pid(self):
wait_for_pid(os.getpid())
nopid = max(psutil.pids()) + 99999
with mock.patch('psutil.tests.retry.__iter__', return_value=iter([0])):
self.assertRaises(psutil.NoSuchProcess, wait_for_pid, nopid)
def test_wait_for_file(self):
testfn = self.get_testfn()
with open(testfn, 'w') as f:
f.write('foo')
wait_for_file(testfn)
assert not os.path.exists(testfn)
def test_wait_for_file_empty(self):
testfn = self.get_testfn()
with open(testfn, 'w'):
pass
wait_for_file(testfn, empty=True)
assert not os.path.exists(testfn)
def test_wait_for_file_no_file(self):
testfn = self.get_testfn()
with mock.patch('psutil.tests.retry.__iter__', return_value=iter([0])):
self.assertRaises(IOError, wait_for_file, testfn)
def test_wait_for_file_no_delete(self):
testfn = self.get_testfn()
with open(testfn, 'w') as f:
f.write('foo')
wait_for_file(testfn, delete=False)
assert os.path.exists(testfn)
def test_call_until(self):
ret = call_until(lambda: 1, "ret == 1")
self.assertEqual(ret, 1)
class TestFSTestUtils(PsutilTestCase):
def test_open_text(self):
with open_text(__file__) as f:
self.assertEqual(f.mode, 'rt')
def test_open_binary(self):
with open_binary(__file__) as f:
self.assertEqual(f.mode, 'rb')
def test_safe_mkdir(self):
testfn = self.get_testfn()
safe_mkdir(testfn)
assert os.path.isdir(testfn)
safe_mkdir(testfn)
assert os.path.isdir(testfn)
def test_safe_rmpath(self):
# test file is removed
testfn = self.get_testfn()
open(testfn, 'w').close()
safe_rmpath(testfn)
assert not os.path.exists(testfn)
# test no exception if path does not exist
safe_rmpath(testfn)
# test dir is removed
os.mkdir(testfn)
safe_rmpath(testfn)
assert not os.path.exists(testfn)
# test other exceptions are raised
with mock.patch('psutil.tests.os.stat',
side_effect=OSError(errno.EINVAL, "")) as m:
with self.assertRaises(OSError):
safe_rmpath(testfn)
assert m.called
def test_chdir(self):
testfn = self.get_testfn()
base = os.getcwd()
os.mkdir(testfn)
with chdir(testfn):
self.assertEqual(os.getcwd(), os.path.join(base, testfn))
self.assertEqual(os.getcwd(), base)
class TestProcessUtils(PsutilTestCase):
def test_reap_children(self):
subp = self.spawn_testproc()
p = psutil.Process(subp.pid)
assert p.is_running()
reap_children()
assert not p.is_running()
assert not psutil.tests._pids_started
assert not psutil.tests._subprocesses_started
def test_spawn_children_pair(self):
child, grandchild = self.spawn_children_pair()
self.assertNotEqual(child.pid, grandchild.pid)
assert child.is_running()
assert grandchild.is_running()
children = psutil.Process().children()
self.assertEqual(children, [child])
children = psutil.Process().children(recursive=True)
self.assertEqual(len(children), 2)
self.assertIn(child, children)
self.assertIn(grandchild, children)
self.assertEqual(child.ppid(), os.getpid())
self.assertEqual(grandchild.ppid(), child.pid)
terminate(child)
assert not child.is_running()
assert grandchild.is_running()
terminate(grandchild)
assert not grandchild.is_running()
@unittest.skipIf(not POSIX, "POSIX only")
def test_spawn_zombie(self):
parent, zombie = self.spawn_zombie()
self.assertEqual(zombie.status(), psutil.STATUS_ZOMBIE)
def test_terminate(self):
# by subprocess.Popen
p = self.spawn_testproc()
terminate(p)
self.assertProcessGone(p)
terminate(p)
# by psutil.Process
p = psutil.Process(self.spawn_testproc().pid)
terminate(p)
self.assertProcessGone(p)
terminate(p)
# by psutil.Popen
cmd = [PYTHON_EXE, "-c", "import time; time.sleep(60);"]
p = psutil.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
env=PYTHON_EXE_ENV)
terminate(p)
self.assertProcessGone(p)
terminate(p)
# by PID
pid = self.spawn_testproc().pid
terminate(pid)
self.assertProcessGone(p)
terminate(pid)
# zombie
if POSIX:
parent, zombie = self.spawn_zombie()
terminate(parent)
terminate(zombie)
self.assertProcessGone(parent)
self.assertProcessGone(zombie)
class TestNetUtils(PsutilTestCase):
def bind_socket(self):
port = get_free_port()
with contextlib.closing(bind_socket(addr=('', port))) as s:
self.assertEqual(s.getsockname()[1], port)
@unittest.skipIf(not POSIX, "POSIX only")
def test_bind_unix_socket(self):
name = self.get_testfn()
sock = bind_unix_socket(name)
with contextlib.closing(sock):
self.assertEqual(sock.family, socket.AF_UNIX)
self.assertEqual(sock.type, socket.SOCK_STREAM)
self.assertEqual(sock.getsockname(), name)
assert os.path.exists(name)
assert stat.S_ISSOCK(os.stat(name).st_mode)
# UDP
name = self.get_testfn()
sock = bind_unix_socket(name, type=socket.SOCK_DGRAM)
with contextlib.closing(sock):
self.assertEqual(sock.type, socket.SOCK_DGRAM)
def tcp_tcp_socketpair(self):
addr = ("127.0.0.1", get_free_port())
server, client = tcp_socketpair(socket.AF_INET, addr=addr)
with contextlib.closing(server):
with contextlib.closing(client):
# Ensure they are connected and the positions are
# correct.
self.assertEqual(server.getsockname(), addr)
self.assertEqual(client.getpeername(), addr)
self.assertNotEqual(client.getsockname(), addr)
@unittest.skipIf(not POSIX, "POSIX only")
@unittest.skipIf(NETBSD or FREEBSD,
"/var/run/log UNIX socket opened by default")
def test_unix_socketpair(self):
p = psutil.Process()
num_fds = p.num_fds()
assert not p.connections(kind='unix')
name = self.get_testfn()
server, client = unix_socketpair(name)
try:
assert os.path.exists(name)
assert stat.S_ISSOCK(os.stat(name).st_mode)
self.assertEqual(p.num_fds() - num_fds, 2)
self.assertEqual(len(p.connections(kind='unix')), 2)
self.assertEqual(server.getsockname(), name)
self.assertEqual(client.getpeername(), name)
finally:
client.close()
server.close()
def test_create_sockets(self):
with create_sockets() as socks:
fams = collections.defaultdict(int)
types = collections.defaultdict(int)
for s in socks:
fams[s.family] += 1
# work around http://bugs.python.org/issue30204
types[s.getsockopt(socket.SOL_SOCKET, socket.SO_TYPE)] += 1
self.assertGreaterEqual(fams[socket.AF_INET], 2)
if supports_ipv6():
self.assertGreaterEqual(fams[socket.AF_INET6], 2)
if POSIX and HAS_CONNECTIONS_UNIX:
self.assertGreaterEqual(fams[socket.AF_UNIX], 2)
self.assertGreaterEqual(types[socket.SOCK_STREAM], 2)
self.assertGreaterEqual(types[socket.SOCK_DGRAM], 2)
@serialrun
class TestMemLeakClass(TestMemoryLeak):
@retry_on_failure()
def test_times(self):
def fun():
cnt['cnt'] += 1
cnt = {'cnt': 0}
self.execute(fun, times=10, warmup_times=15)
self.assertEqual(cnt['cnt'], 26)
def test_param_err(self):
self.assertRaises(ValueError, self.execute, lambda: 0, times=0)
self.assertRaises(ValueError, self.execute, lambda: 0, times=-1)
self.assertRaises(ValueError, self.execute, lambda: 0, warmup_times=-1)
self.assertRaises(ValueError, self.execute, lambda: 0, tolerance=-1)
self.assertRaises(ValueError, self.execute, lambda: 0, retries=-1)
@retry_on_failure()
@unittest.skipIf(CI_TESTING, "skipped on CI")
@unittest.skipIf(COVERAGE, "skipped during test coverage")
def test_leak_mem(self):
ls = []
def fun(ls=ls):
ls.append("x" * 24 * 1024)
try:
# will consume around 3M in total
self.assertRaisesRegex(AssertionError, "extra-mem",
self.execute, fun, times=50)
finally:
del ls
def test_unclosed_files(self):
def fun():
f = open(__file__)
self.addCleanup(f.close)
box.append(f)
box = []
kind = "fd" if POSIX else "handle"
self.assertRaisesRegex(AssertionError, "unclosed " + kind,
self.execute, fun)
def test_tolerance(self):
def fun():
ls.append("x" * 24 * 1024)
ls = []
times = 100
self.execute(fun, times=times, warmup_times=0,
tolerance=200 * 1024 * 1024)
self.assertEqual(len(ls), times + 1)
def test_execute_w_exc(self):
def fun_1():
1 / 0
self.execute_w_exc(ZeroDivisionError, fun_1)
with self.assertRaises(ZeroDivisionError):
self.execute_w_exc(OSError, fun_1)
def fun_2():
pass
with self.assertRaises(AssertionError):
self.execute_w_exc(ZeroDivisionError, fun_2)
class TestTestingUtils(PsutilTestCase):
def test_process_namespace(self):
p = psutil.Process()
ns = process_namespace(p)
ns.test()
fun = [x for x in ns.iter(ns.getters) if x[1] == 'ppid'][0][0]
self.assertEqual(fun(), p.ppid())
def test_system_namespace(self):
ns = system_namespace()
fun = [x for x in ns.iter(ns.getters) if x[1] == 'net_if_addrs'][0][0]
self.assertEqual(fun(), psutil.net_if_addrs())
class TestOtherUtils(PsutilTestCase):
def test_is_namedtuple(self):
assert is_namedtuple(collections.namedtuple('foo', 'a b c')(1, 2, 3))
assert not is_namedtuple(tuple())
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Notes about unicode handling in psutil
======================================
Starting from version 5.3.0 psutil adds unicode support, see:
https://github.com/giampaolo/psutil/issues/1040
The notes below apply to *any* API returning a string such as
process exe(), cwd() or username():
* all strings are encoded by using the OS filesystem encoding
(sys.getfilesystemencoding()) which varies depending on the platform
(e.g. "UTF-8" on macOS, "mbcs" on Win)
* no API call is supposed to crash with UnicodeDecodeError
* instead, in case of badly encoded data returned by the OS, the
following error handlers are used to replace the corrupted characters in
the string:
* Python 3: sys.getfilesystemencodeerrors() (PY 3.6+) or
"surrogatescape" on POSIX and "replace" on Windows
* Python 2: "replace"
* on Python 2 all APIs return bytes (str type), never unicode
* on Python 2, you can go back to unicode by doing:
>>> unicode(p.exe(), sys.getdefaultencoding(), errors="replace")
For a detailed explanation of how psutil handles unicode see #1040.
Tests
=====
List of APIs returning or dealing with a string:
('not tested' means they are not tested to deal with non-ASCII strings):
* Process.cmdline()
* Process.connections('unix')
* Process.cwd()
* Process.environ()
* Process.exe()
* Process.memory_maps()
* Process.name()
* Process.open_files()
* Process.username() (not tested)
* disk_io_counters() (not tested)
* disk_partitions() (not tested)
* disk_usage(str)
* net_connections('unix')
* net_if_addrs() (not tested)
* net_if_stats() (not tested)
* net_io_counters() (not tested)
* sensors_fans() (not tested)
* sensors_temperatures() (not tested)
* users() (not tested)
* WindowsService.binpath() (not tested)
* WindowsService.description() (not tested)
* WindowsService.display_name() (not tested)
* WindowsService.name() (not tested)
* WindowsService.status() (not tested)
* WindowsService.username() (not tested)
In here we create a unicode path with a funky non-ASCII name and (where
possible) make psutil return it back (e.g. on name(), exe(), open_files(),
etc.) and make sure that:
* psutil never crashes with UnicodeDecodeError
* the returned path matches
"""
import os
import shutil
import traceback
import unittest
import warnings
from contextlib import closing
import psutil
from psutil import BSD
from psutil import POSIX
from psutil import WINDOWS
from psutil._compat import PY3
from psutil._compat import u
from psutil.tests import APPVEYOR
from psutil.tests import ASCII_FS
from psutil.tests import CI_TESTING
from psutil.tests import HAS_CONNECTIONS_UNIX
from psutil.tests import HAS_ENVIRON
from psutil.tests import HAS_MEMORY_MAPS
from psutil.tests import INVALID_UNICODE_SUFFIX
from psutil.tests import PYPY
from psutil.tests import TESTFN_PREFIX
from psutil.tests import UNICODE_SUFFIX
from psutil.tests import PsutilTestCase
from psutil.tests import bind_unix_socket
from psutil.tests import chdir
from psutil.tests import copyload_shared_lib
from psutil.tests import create_exe
from psutil.tests import get_testfn
from psutil.tests import safe_mkdir
from psutil.tests import safe_rmpath
from psutil.tests import serialrun
from psutil.tests import skip_on_access_denied
from psutil.tests import spawn_testproc
from psutil.tests import terminate
if APPVEYOR:
def safe_rmpath(path): # NOQA
# TODO - this is quite random and I'm not sure why it happens,
# nor I can reproduce it locally:
# https://ci.appveyor.com/project/giampaolo/psutil/build/job/
# jiq2cgd6stsbtn60
# safe_rmpath() happens after reap_children() so this is weird
# Perhaps wait_procs() on Windows is broken? Maybe because
# of STILL_ACTIVE?
# https://github.com/giampaolo/psutil/blob/
# 68c7a70728a31d8b8b58f4be6c4c0baa2f449eda/psutil/arch/
# windows/process_info.c#L146
from psutil.tests import safe_rmpath as rm
try:
return rm(path)
except WindowsError:
traceback.print_exc()
def try_unicode(suffix):
"""Return True if both the fs and the subprocess module can
deal with a unicode file name.
"""
sproc = None
testfn = get_testfn(suffix=suffix)
try:
safe_rmpath(testfn)
create_exe(testfn)
sproc = spawn_testproc(cmd=[testfn])
shutil.copyfile(testfn, testfn + '-2')
safe_rmpath(testfn + '-2')
except (UnicodeEncodeError, IOError):
return False
else:
return True
finally:
if sproc is not None:
terminate(sproc)
safe_rmpath(testfn)
# ===================================================================
# FS APIs
# ===================================================================
class BaseUnicodeTest(PsutilTestCase):
funky_suffix = None
def setUp(self):
if self.funky_suffix is not None:
if not try_unicode(self.funky_suffix):
raise self.skipTest("can't handle unicode str")
@serialrun
@unittest.skipIf(ASCII_FS, "ASCII fs")
@unittest.skipIf(PYPY and not PY3, "too much trouble on PYPY2")
class TestFSAPIs(BaseUnicodeTest):
"""Test FS APIs with a funky, valid, UTF8 path name."""
funky_suffix = UNICODE_SUFFIX
@classmethod
def setUpClass(cls):
cls.funky_name = get_testfn(suffix=cls.funky_suffix)
create_exe(cls.funky_name)
@classmethod
def tearDownClass(cls):
safe_rmpath(cls.funky_name)
def expect_exact_path_match(self):
# Do not expect psutil to correctly handle unicode paths on
# Python 2 if os.listdir() is not able either.
here = '.' if isinstance(self.funky_name, str) else u('.')
with warnings.catch_warnings():
warnings.simplefilter("ignore")
return self.funky_name in os.listdir(here)
# ---
def test_proc_exe(self):
subp = self.spawn_testproc(cmd=[self.funky_name])
p = psutil.Process(subp.pid)
exe = p.exe()
self.assertIsInstance(exe, str)
if self.expect_exact_path_match():
self.assertEqual(os.path.normcase(exe),
os.path.normcase(self.funky_name))
def test_proc_name(self):
subp = self.spawn_testproc(cmd=[self.funky_name])
name = psutil.Process(subp.pid).name()
self.assertIsInstance(name, str)
if self.expect_exact_path_match():
self.assertEqual(name, os.path.basename(self.funky_name))
def test_proc_cmdline(self):
subp = self.spawn_testproc(cmd=[self.funky_name])
p = psutil.Process(subp.pid)
cmdline = p.cmdline()
for part in cmdline:
self.assertIsInstance(part, str)
if self.expect_exact_path_match():
self.assertEqual(cmdline, [self.funky_name])
def test_proc_cwd(self):
dname = self.funky_name + "2"
self.addCleanup(safe_rmpath, dname)
safe_mkdir(dname)
with chdir(dname):
p = psutil.Process()
cwd = p.cwd()
self.assertIsInstance(p.cwd(), str)
if self.expect_exact_path_match():
self.assertEqual(cwd, dname)
@unittest.skipIf(PYPY and WINDOWS, "fails on PYPY + WINDOWS")
def test_proc_open_files(self):
p = psutil.Process()
start = set(p.open_files())
with open(self.funky_name, 'rb'):
new = set(p.open_files())
path = (new - start).pop().path
self.assertIsInstance(path, str)
if BSD and not path:
# XXX - see https://github.com/giampaolo/psutil/issues/595
return self.skipTest("open_files on BSD is broken")
if self.expect_exact_path_match():
self.assertEqual(os.path.normcase(path),
os.path.normcase(self.funky_name))
@unittest.skipIf(not POSIX, "POSIX only")
def test_proc_connections(self):
name = self.get_testfn(suffix=self.funky_suffix)
try:
sock = bind_unix_socket(name)
except UnicodeEncodeError:
if PY3:
raise
else:
raise unittest.SkipTest("not supported")
with closing(sock):
conn = psutil.Process().connections('unix')[0]
self.assertIsInstance(conn.laddr, str)
self.assertEqual(conn.laddr, name)
@unittest.skipIf(not POSIX, "POSIX only")
@unittest.skipIf(not HAS_CONNECTIONS_UNIX, "can't list UNIX sockets")
@skip_on_access_denied()
def test_net_connections(self):
def find_sock(cons):
for conn in cons:
if os.path.basename(conn.laddr).startswith(TESTFN_PREFIX):
return conn
raise ValueError("connection not found")
name = self.get_testfn(suffix=self.funky_suffix)
try:
sock = bind_unix_socket(name)
except UnicodeEncodeError:
if PY3:
raise
else:
raise unittest.SkipTest("not supported")
with closing(sock):
cons = psutil.net_connections(kind='unix')
conn = find_sock(cons)
self.assertIsInstance(conn.laddr, str)
self.assertEqual(conn.laddr, name)
def test_disk_usage(self):
dname = self.funky_name + "2"
self.addCleanup(safe_rmpath, dname)
safe_mkdir(dname)
psutil.disk_usage(dname)
@unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
@unittest.skipIf(not PY3, "ctypes does not support unicode on PY2")
@unittest.skipIf(PYPY, "unstable on PYPY")
def test_memory_maps(self):
# XXX: on Python 2, using ctypes.CDLL with a unicode path
# opens a message box which blocks the test run.
with copyload_shared_lib(suffix=self.funky_suffix) as funky_path:
def normpath(p):
return os.path.realpath(os.path.normcase(p))
libpaths = [normpath(x.path)
for x in psutil.Process().memory_maps()]
# ...just to have a clearer msg in case of failure
libpaths = [x for x in libpaths if TESTFN_PREFIX in x]
self.assertIn(normpath(funky_path), libpaths)
for path in libpaths:
self.assertIsInstance(path, str)
@unittest.skipIf(CI_TESTING, "unreliable on CI")
class TestFSAPIsWithInvalidPath(TestFSAPIs):
"""Test FS APIs with a funky, invalid path name."""
funky_suffix = INVALID_UNICODE_SUFFIX
def expect_exact_path_match(self):
# Invalid unicode names are supposed to work on Python 2.
return True
# ===================================================================
# Non fs APIs
# ===================================================================
class TestNonFSAPIS(BaseUnicodeTest):
"""Unicode tests for non fs-related APIs."""
funky_suffix = UNICODE_SUFFIX if PY3 else 'è'
@unittest.skipIf(not HAS_ENVIRON, "not supported")
@unittest.skipIf(PYPY and WINDOWS, "segfaults on PYPY + WINDOWS")
def test_proc_environ(self):
# Note: differently from others, this test does not deal
# with fs paths. On Python 2 subprocess module is broken as
# it's not able to handle with non-ASCII env vars, so
# we use "è", which is part of the extended ASCII table
# (unicode point <= 255).
env = os.environ.copy()
env['FUNNY_ARG'] = self.funky_suffix
sproc = self.spawn_testproc(env=env)
p = psutil.Process(sproc.pid)
env = p.environ()
for k, v in env.items():
self.assertIsInstance(k, str)
self.assertIsInstance(v, str)
self.assertEqual(env['FUNNY_ARG'], self.funky_suffix)
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)

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#!/usr/bin/env python3
# -*- coding: UTF-8 -*
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Windows specific tests."""
import datetime
import errno
import glob
import os
import platform
import re
import signal
import subprocess
import sys
import time
import unittest
import warnings
import psutil
from psutil import WINDOWS
from psutil._compat import FileNotFoundError
from psutil._compat import super
from psutil._compat import which
from psutil.tests import APPVEYOR
from psutil.tests import GITHUB_ACTIONS
from psutil.tests import HAS_BATTERY
from psutil.tests import IS_64BIT
from psutil.tests import PY3
from psutil.tests import PYPY
from psutil.tests import TOLERANCE_DISK_USAGE
from psutil.tests import TOLERANCE_SYS_MEM
from psutil.tests import PsutilTestCase
from psutil.tests import mock
from psutil.tests import retry_on_failure
from psutil.tests import sh
from psutil.tests import spawn_testproc
from psutil.tests import terminate
if WINDOWS and not PYPY:
with warnings.catch_warnings():
warnings.simplefilter("ignore")
import win32api # requires "pip install pywin32"
import win32con
import win32process
import wmi # requires "pip install wmi" / "make setup-dev-env"
if WINDOWS:
from psutil._pswindows import convert_oserror
cext = psutil._psplatform.cext
@unittest.skipIf(not WINDOWS, "WINDOWS only")
@unittest.skipIf(PYPY, "pywin32 not available on PYPY")
# https://github.com/giampaolo/psutil/pull/1762#issuecomment-632892692
@unittest.skipIf(GITHUB_ACTIONS and not PY3, "pywin32 broken on GITHUB + PY2")
class WindowsTestCase(PsutilTestCase):
pass
def powershell(cmd):
"""Currently not used, but avalable just in case. Usage:
>>> powershell(
"Get-CIMInstance Win32_PageFileUsage | Select AllocatedBaseSize")
"""
if not which("powershell.exe"):
raise unittest.SkipTest("powershell.exe not available")
cmdline = \
'powershell.exe -ExecutionPolicy Bypass -NoLogo -NonInteractive ' + \
'-NoProfile -WindowStyle Hidden -Command "%s"' % cmd
return sh(cmdline)
def wmic(path, what, converter=int):
"""Currently not used, but avalable just in case. Usage:
>>> wmic("Win32_OperatingSystem", "FreePhysicalMemory")
2134124534
"""
out = sh("wmic path %s get %s" % (path, what)).strip()
data = "".join(out.splitlines()[1:]).strip() # get rid of the header
if converter is not None:
if "," in what:
return tuple([converter(x) for x in data.split()])
else:
return converter(data)
else:
return data
# ===================================================================
# System APIs
# ===================================================================
class TestCpuAPIs(WindowsTestCase):
@unittest.skipIf('NUMBER_OF_PROCESSORS' not in os.environ,
'NUMBER_OF_PROCESSORS env var is not available')
def test_cpu_count_vs_NUMBER_OF_PROCESSORS(self):
# Will likely fail on many-cores systems:
# https://stackoverflow.com/questions/31209256
num_cpus = int(os.environ['NUMBER_OF_PROCESSORS'])
self.assertEqual(num_cpus, psutil.cpu_count())
def test_cpu_count_vs_GetSystemInfo(self):
# Will likely fail on many-cores systems:
# https://stackoverflow.com/questions/31209256
sys_value = win32api.GetSystemInfo()[5]
psutil_value = psutil.cpu_count()
self.assertEqual(sys_value, psutil_value)
def test_cpu_count_logical_vs_wmi(self):
w = wmi.WMI()
procs = sum(proc.NumberOfLogicalProcessors
for proc in w.Win32_Processor())
self.assertEqual(psutil.cpu_count(), procs)
def test_cpu_count_cores_vs_wmi(self):
w = wmi.WMI()
cores = sum(proc.NumberOfCores for proc in w.Win32_Processor())
self.assertEqual(psutil.cpu_count(logical=False), cores)
def test_cpu_count_vs_cpu_times(self):
self.assertEqual(psutil.cpu_count(),
len(psutil.cpu_times(percpu=True)))
def test_cpu_freq(self):
w = wmi.WMI()
proc = w.Win32_Processor()[0]
self.assertEqual(proc.CurrentClockSpeed, psutil.cpu_freq().current)
self.assertEqual(proc.MaxClockSpeed, psutil.cpu_freq().max)
class TestSystemAPIs(WindowsTestCase):
def test_nic_names(self):
out = sh('ipconfig /all')
nics = psutil.net_io_counters(pernic=True).keys()
for nic in nics:
if "pseudo-interface" in nic.replace(' ', '-').lower():
continue
if nic not in out:
raise self.fail(
"%r nic wasn't found in 'ipconfig /all' output" % nic)
def test_total_phymem(self):
w = wmi.WMI().Win32_ComputerSystem()[0]
self.assertEqual(int(w.TotalPhysicalMemory),
psutil.virtual_memory().total)
def test_free_phymem(self):
w = wmi.WMI().Win32_PerfRawData_PerfOS_Memory()[0]
self.assertAlmostEqual(
int(w.AvailableBytes), psutil.virtual_memory().free,
delta=TOLERANCE_SYS_MEM)
def test_total_swapmem(self):
w = wmi.WMI().Win32_PerfRawData_PerfOS_Memory()[0]
self.assertEqual(int(w.CommitLimit) - psutil.virtual_memory().total,
psutil.swap_memory().total)
if (psutil.swap_memory().total == 0):
self.assertEqual(0, psutil.swap_memory().free)
self.assertEqual(0, psutil.swap_memory().used)
def test_percent_swapmem(self):
if (psutil.swap_memory().total > 0):
w = wmi.WMI().Win32_PerfRawData_PerfOS_PagingFile(
Name="_Total")[0]
# calculate swap usage to percent
percentSwap = int(w.PercentUsage) * 100 / int(w.PercentUsage_Base)
# exact percent may change but should be reasonable
# assert within +/- 5% and between 0 and 100%
self.assertGreaterEqual(psutil.swap_memory().percent, 0)
self.assertAlmostEqual(psutil.swap_memory().percent, percentSwap,
delta=5)
self.assertLessEqual(psutil.swap_memory().percent, 100)
# @unittest.skipIf(wmi is None, "wmi module is not installed")
# def test__UPTIME(self):
# # _UPTIME constant is not public but it is used internally
# # as value to return for pid 0 creation time.
# # WMI behaves the same.
# w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
# p = psutil.Process(0)
# wmic_create = str(w.CreationDate.split('.')[0])
# psutil_create = time.strftime("%Y%m%d%H%M%S",
# time.localtime(p.create_time()))
# Note: this test is not very reliable
@unittest.skipIf(APPVEYOR, "test not relieable on appveyor")
@retry_on_failure()
def test_pids(self):
# Note: this test might fail if the OS is starting/killing
# other processes in the meantime
w = wmi.WMI().Win32_Process()
wmi_pids = set([x.ProcessId for x in w])
psutil_pids = set(psutil.pids())
self.assertEqual(wmi_pids, psutil_pids)
@retry_on_failure()
def test_disks(self):
ps_parts = psutil.disk_partitions(all=True)
wmi_parts = wmi.WMI().Win32_LogicalDisk()
for ps_part in ps_parts:
for wmi_part in wmi_parts:
if ps_part.device.replace('\\', '') == wmi_part.DeviceID:
if not ps_part.mountpoint:
# this is usually a CD-ROM with no disk inserted
break
if 'cdrom' in ps_part.opts:
break
if ps_part.mountpoint.startswith('A:'):
break # floppy
try:
usage = psutil.disk_usage(ps_part.mountpoint)
except FileNotFoundError:
# usually this is the floppy
break
self.assertEqual(usage.total, int(wmi_part.Size))
wmi_free = int(wmi_part.FreeSpace)
self.assertEqual(usage.free, wmi_free)
# 10 MB tolerance
if abs(usage.free - wmi_free) > 10 * 1024 * 1024:
raise self.fail("psutil=%s, wmi=%s" % (
usage.free, wmi_free))
break
else:
raise self.fail("can't find partition %s" % repr(ps_part))
@retry_on_failure()
def test_disk_usage(self):
for disk in psutil.disk_partitions():
if 'cdrom' in disk.opts:
continue
sys_value = win32api.GetDiskFreeSpaceEx(disk.mountpoint)
psutil_value = psutil.disk_usage(disk.mountpoint)
self.assertAlmostEqual(sys_value[0], psutil_value.free,
delta=TOLERANCE_DISK_USAGE)
self.assertAlmostEqual(sys_value[1], psutil_value.total,
delta=TOLERANCE_DISK_USAGE)
self.assertEqual(psutil_value.used,
psutil_value.total - psutil_value.free)
def test_disk_partitions(self):
sys_value = [
x + '\\' for x in win32api.GetLogicalDriveStrings().split("\\\x00")
if x and not x.startswith('A:')]
psutil_value = [x.mountpoint for x in psutil.disk_partitions(all=True)
if not x.mountpoint.startswith('A:')]
self.assertEqual(sys_value, psutil_value)
def test_net_if_stats(self):
ps_names = set(cext.net_if_stats())
wmi_adapters = wmi.WMI().Win32_NetworkAdapter()
wmi_names = set()
for wmi_adapter in wmi_adapters:
wmi_names.add(wmi_adapter.Name)
wmi_names.add(wmi_adapter.NetConnectionID)
self.assertTrue(ps_names & wmi_names,
"no common entries in %s, %s" % (ps_names, wmi_names))
def test_boot_time(self):
wmi_os = wmi.WMI().Win32_OperatingSystem()
wmi_btime_str = wmi_os[0].LastBootUpTime.split('.')[0]
wmi_btime_dt = datetime.datetime.strptime(
wmi_btime_str, "%Y%m%d%H%M%S")
psutil_dt = datetime.datetime.fromtimestamp(psutil.boot_time())
diff = abs((wmi_btime_dt - psutil_dt).total_seconds())
self.assertLessEqual(diff, 5)
def test_boot_time_fluctuation(self):
# https://github.com/giampaolo/psutil/issues/1007
with mock.patch('psutil._pswindows.cext.boot_time', return_value=5):
self.assertEqual(psutil.boot_time(), 5)
with mock.patch('psutil._pswindows.cext.boot_time', return_value=4):
self.assertEqual(psutil.boot_time(), 5)
with mock.patch('psutil._pswindows.cext.boot_time', return_value=6):
self.assertEqual(psutil.boot_time(), 5)
with mock.patch('psutil._pswindows.cext.boot_time', return_value=333):
self.assertEqual(psutil.boot_time(), 333)
# ===================================================================
# sensors_battery()
# ===================================================================
class TestSensorsBattery(WindowsTestCase):
def test_has_battery(self):
if win32api.GetPwrCapabilities()['SystemBatteriesPresent']:
self.assertIsNotNone(psutil.sensors_battery())
else:
self.assertIsNone(psutil.sensors_battery())
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_percent(self):
w = wmi.WMI()
battery_wmi = w.query('select * from Win32_Battery')[0]
battery_psutil = psutil.sensors_battery()
self.assertAlmostEqual(
battery_psutil.percent, battery_wmi.EstimatedChargeRemaining,
delta=1)
@unittest.skipIf(not HAS_BATTERY, "no battery")
def test_power_plugged(self):
w = wmi.WMI()
battery_wmi = w.query('select * from Win32_Battery')[0]
battery_psutil = psutil.sensors_battery()
# Status codes:
# https://msdn.microsoft.com/en-us/library/aa394074(v=vs.85).aspx
self.assertEqual(battery_psutil.power_plugged,
battery_wmi.BatteryStatus == 2)
def test_emulate_no_battery(self):
with mock.patch("psutil._pswindows.cext.sensors_battery",
return_value=(0, 128, 0, 0)) as m:
self.assertIsNone(psutil.sensors_battery())
assert m.called
def test_emulate_power_connected(self):
with mock.patch("psutil._pswindows.cext.sensors_battery",
return_value=(1, 0, 0, 0)) as m:
self.assertEqual(psutil.sensors_battery().secsleft,
psutil.POWER_TIME_UNLIMITED)
assert m.called
def test_emulate_power_charging(self):
with mock.patch("psutil._pswindows.cext.sensors_battery",
return_value=(0, 8, 0, 0)) as m:
self.assertEqual(psutil.sensors_battery().secsleft,
psutil.POWER_TIME_UNLIMITED)
assert m.called
def test_emulate_secs_left_unknown(self):
with mock.patch("psutil._pswindows.cext.sensors_battery",
return_value=(0, 0, 0, -1)) as m:
self.assertEqual(psutil.sensors_battery().secsleft,
psutil.POWER_TIME_UNKNOWN)
assert m.called
# ===================================================================
# Process APIs
# ===================================================================
class TestProcess(WindowsTestCase):
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
def test_issue_24(self):
p = psutil.Process(0)
self.assertRaises(psutil.AccessDenied, p.kill)
def test_special_pid(self):
p = psutil.Process(4)
self.assertEqual(p.name(), 'System')
# use __str__ to access all common Process properties to check
# that nothing strange happens
str(p)
p.username()
self.assertTrue(p.create_time() >= 0.0)
try:
rss, vms = p.memory_info()[:2]
except psutil.AccessDenied:
# expected on Windows Vista and Windows 7
if not platform.uname()[1] in ('vista', 'win-7', 'win7'):
raise
else:
self.assertTrue(rss > 0)
def test_send_signal(self):
p = psutil.Process(self.pid)
self.assertRaises(ValueError, p.send_signal, signal.SIGINT)
def test_num_handles_increment(self):
p = psutil.Process(os.getpid())
before = p.num_handles()
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, os.getpid())
after = p.num_handles()
self.assertEqual(after, before + 1)
win32api.CloseHandle(handle)
self.assertEqual(p.num_handles(), before)
def test_ctrl_signals(self):
p = psutil.Process(self.spawn_testproc().pid)
p.send_signal(signal.CTRL_C_EVENT)
p.send_signal(signal.CTRL_BREAK_EVENT)
p.kill()
p.wait()
self.assertRaises(psutil.NoSuchProcess,
p.send_signal, signal.CTRL_C_EVENT)
self.assertRaises(psutil.NoSuchProcess,
p.send_signal, signal.CTRL_BREAK_EVENT)
def test_username(self):
name = win32api.GetUserNameEx(win32con.NameSamCompatible)
if name.endswith('$'):
# When running as a service account (most likely to be
# NetworkService), these user name calculations don't produce the
# same result, causing the test to fail.
raise unittest.SkipTest('running as service account')
self.assertEqual(psutil.Process().username(), name)
def test_cmdline(self):
sys_value = re.sub('[ ]+', ' ', win32api.GetCommandLine()).strip()
psutil_value = ' '.join(psutil.Process().cmdline())
if sys_value[0] == '"' != psutil_value[0]:
# The PyWin32 command line may retain quotes around argv[0] if they
# were used unnecessarily, while psutil will omit them. So remove
# the first 2 quotes from sys_value if not in psutil_value.
# A path to an executable will not contain quotes, so this is safe.
sys_value = sys_value.replace('"', '', 2)
self.assertEqual(sys_value, psutil_value)
# XXX - occasional failures
# def test_cpu_times(self):
# handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
# win32con.FALSE, os.getpid())
# self.addCleanup(win32api.CloseHandle, handle)
# sys_value = win32process.GetProcessTimes(handle)
# psutil_value = psutil.Process().cpu_times()
# self.assertAlmostEqual(
# psutil_value.user, sys_value['UserTime'] / 10000000.0,
# delta=0.2)
# self.assertAlmostEqual(
# psutil_value.user, sys_value['KernelTime'] / 10000000.0,
# delta=0.2)
def test_nice(self):
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, os.getpid())
self.addCleanup(win32api.CloseHandle, handle)
sys_value = win32process.GetPriorityClass(handle)
psutil_value = psutil.Process().nice()
self.assertEqual(psutil_value, sys_value)
def test_memory_info(self):
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, self.pid)
self.addCleanup(win32api.CloseHandle, handle)
sys_value = win32process.GetProcessMemoryInfo(handle)
psutil_value = psutil.Process(self.pid).memory_info()
self.assertEqual(
sys_value['PeakWorkingSetSize'], psutil_value.peak_wset)
self.assertEqual(
sys_value['WorkingSetSize'], psutil_value.wset)
self.assertEqual(
sys_value['QuotaPeakPagedPoolUsage'], psutil_value.peak_paged_pool)
self.assertEqual(
sys_value['QuotaPagedPoolUsage'], psutil_value.paged_pool)
self.assertEqual(
sys_value['QuotaPeakNonPagedPoolUsage'],
psutil_value.peak_nonpaged_pool)
self.assertEqual(
sys_value['QuotaNonPagedPoolUsage'], psutil_value.nonpaged_pool)
self.assertEqual(
sys_value['PagefileUsage'], psutil_value.pagefile)
self.assertEqual(
sys_value['PeakPagefileUsage'], psutil_value.peak_pagefile)
self.assertEqual(psutil_value.rss, psutil_value.wset)
self.assertEqual(psutil_value.vms, psutil_value.pagefile)
def test_wait(self):
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, self.pid)
self.addCleanup(win32api.CloseHandle, handle)
p = psutil.Process(self.pid)
p.terminate()
psutil_value = p.wait()
sys_value = win32process.GetExitCodeProcess(handle)
self.assertEqual(psutil_value, sys_value)
def test_cpu_affinity(self):
def from_bitmask(x):
return [i for i in range(64) if (1 << i) & x]
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, self.pid)
self.addCleanup(win32api.CloseHandle, handle)
sys_value = from_bitmask(
win32process.GetProcessAffinityMask(handle)[0])
psutil_value = psutil.Process(self.pid).cpu_affinity()
self.assertEqual(psutil_value, sys_value)
def test_io_counters(self):
handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
win32con.FALSE, os.getpid())
self.addCleanup(win32api.CloseHandle, handle)
sys_value = win32process.GetProcessIoCounters(handle)
psutil_value = psutil.Process().io_counters()
self.assertEqual(
psutil_value.read_count, sys_value['ReadOperationCount'])
self.assertEqual(
psutil_value.write_count, sys_value['WriteOperationCount'])
self.assertEqual(
psutil_value.read_bytes, sys_value['ReadTransferCount'])
self.assertEqual(
psutil_value.write_bytes, sys_value['WriteTransferCount'])
self.assertEqual(
psutil_value.other_count, sys_value['OtherOperationCount'])
self.assertEqual(
psutil_value.other_bytes, sys_value['OtherTransferCount'])
def test_num_handles(self):
import ctypes
import ctypes.wintypes
PROCESS_QUERY_INFORMATION = 0x400
handle = ctypes.windll.kernel32.OpenProcess(
PROCESS_QUERY_INFORMATION, 0, self.pid)
self.addCleanup(ctypes.windll.kernel32.CloseHandle, handle)
hndcnt = ctypes.wintypes.DWORD()
ctypes.windll.kernel32.GetProcessHandleCount(
handle, ctypes.byref(hndcnt))
sys_value = hndcnt.value
psutil_value = psutil.Process(self.pid).num_handles()
self.assertEqual(psutil_value, sys_value)
def test_error_partial_copy(self):
# https://github.com/giampaolo/psutil/issues/875
exc = WindowsError()
exc.winerror = 299
with mock.patch("psutil._psplatform.cext.proc_cwd", side_effect=exc):
with mock.patch("time.sleep") as m:
p = psutil.Process()
self.assertRaises(psutil.AccessDenied, p.cwd)
self.assertGreaterEqual(m.call_count, 5)
def test_exe(self):
# NtQuerySystemInformation succeeds if process is gone. Make sure
# it raises NSP for a non existent pid.
pid = psutil.pids()[-1] + 99999
proc = psutil._psplatform.Process(pid)
self.assertRaises(psutil.NoSuchProcess, proc.exe)
class TestProcessWMI(WindowsTestCase):
"""Compare Process API results with WMI."""
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
def test_name(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
self.assertEqual(p.name(), w.Caption)
# This fail on github because using virtualenv for test environment
@unittest.skipIf(GITHUB_ACTIONS, "unreliable path on GITHUB_ACTIONS")
def test_exe(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
# Note: wmi reports the exe as a lower case string.
# Being Windows paths case-insensitive we ignore that.
self.assertEqual(p.exe().lower(), w.ExecutablePath.lower())
def test_cmdline(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
self.assertEqual(' '.join(p.cmdline()),
w.CommandLine.replace('"', ''))
def test_username(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
domain, _, username = w.GetOwner()
username = "%s\\%s" % (domain, username)
self.assertEqual(p.username(), username)
@retry_on_failure()
def test_memory_rss(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
rss = p.memory_info().rss
self.assertEqual(rss, int(w.WorkingSetSize))
@retry_on_failure()
def test_memory_vms(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
vms = p.memory_info().vms
# http://msdn.microsoft.com/en-us/library/aa394372(VS.85).aspx
# ...claims that PageFileUsage is represented in Kilo
# bytes but funnily enough on certain platforms bytes are
# returned instead.
wmi_usage = int(w.PageFileUsage)
if (vms != wmi_usage) and (vms != wmi_usage * 1024):
raise self.fail("wmi=%s, psutil=%s" % (wmi_usage, vms))
def test_create_time(self):
w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
p = psutil.Process(self.pid)
wmic_create = str(w.CreationDate.split('.')[0])
psutil_create = time.strftime("%Y%m%d%H%M%S",
time.localtime(p.create_time()))
self.assertEqual(wmic_create, psutil_create)
# ---
@unittest.skipIf(not WINDOWS, "WINDOWS only")
class TestDualProcessImplementation(PsutilTestCase):
"""
Certain APIs on Windows have 2 internal implementations, one
based on documented Windows APIs, another one based
NtQuerySystemInformation() which gets called as fallback in
case the first fails because of limited permission error.
Here we test that the two methods return the exact same value,
see:
https://github.com/giampaolo/psutil/issues/304
"""
@classmethod
def setUpClass(cls):
cls.pid = spawn_testproc().pid
@classmethod
def tearDownClass(cls):
terminate(cls.pid)
def test_memory_info(self):
mem_1 = psutil.Process(self.pid).memory_info()
with mock.patch("psutil._psplatform.cext.proc_memory_info",
side_effect=OSError(errno.EPERM, "msg")) as fun:
mem_2 = psutil.Process(self.pid).memory_info()
self.assertEqual(len(mem_1), len(mem_2))
for i in range(len(mem_1)):
self.assertGreaterEqual(mem_1[i], 0)
self.assertGreaterEqual(mem_2[i], 0)
self.assertAlmostEqual(mem_1[i], mem_2[i], delta=512)
assert fun.called
def test_create_time(self):
ctime = psutil.Process(self.pid).create_time()
with mock.patch("psutil._psplatform.cext.proc_times",
side_effect=OSError(errno.EPERM, "msg")) as fun:
self.assertEqual(psutil.Process(self.pid).create_time(), ctime)
assert fun.called
def test_cpu_times(self):
cpu_times_1 = psutil.Process(self.pid).cpu_times()
with mock.patch("psutil._psplatform.cext.proc_times",
side_effect=OSError(errno.EPERM, "msg")) as fun:
cpu_times_2 = psutil.Process(self.pid).cpu_times()
assert fun.called
self.assertAlmostEqual(
cpu_times_1.user, cpu_times_2.user, delta=0.01)
self.assertAlmostEqual(
cpu_times_1.system, cpu_times_2.system, delta=0.01)
def test_io_counters(self):
io_counters_1 = psutil.Process(self.pid).io_counters()
with mock.patch("psutil._psplatform.cext.proc_io_counters",
side_effect=OSError(errno.EPERM, "msg")) as fun:
io_counters_2 = psutil.Process(self.pid).io_counters()
for i in range(len(io_counters_1)):
self.assertAlmostEqual(
io_counters_1[i], io_counters_2[i], delta=5)
assert fun.called
def test_num_handles(self):
num_handles = psutil.Process(self.pid).num_handles()
with mock.patch("psutil._psplatform.cext.proc_num_handles",
side_effect=OSError(errno.EPERM, "msg")) as fun:
self.assertEqual(psutil.Process(self.pid).num_handles(),
num_handles)
assert fun.called
def test_cmdline(self):
for pid in psutil.pids():
try:
a = cext.proc_cmdline(pid, use_peb=True)
b = cext.proc_cmdline(pid, use_peb=False)
except OSError as err:
err = convert_oserror(err)
if not isinstance(err, (psutil.AccessDenied,
psutil.NoSuchProcess)):
raise
else:
self.assertEqual(a, b)
@unittest.skipIf(not WINDOWS, "WINDOWS only")
class RemoteProcessTestCase(PsutilTestCase):
"""Certain functions require calling ReadProcessMemory.
This trivially works when called on the current process.
Check that this works on other processes, especially when they
have a different bitness.
"""
@staticmethod
def find_other_interpreter():
# find a python interpreter that is of the opposite bitness from us
code = "import sys; sys.stdout.write(str(sys.maxsize > 2**32))"
# XXX: a different and probably more stable approach might be to access
# the registry but accessing 64 bit paths from a 32 bit process
for filename in glob.glob(r"C:\Python*\python.exe"):
proc = subprocess.Popen(args=[filename, "-c", code],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
output, _ = proc.communicate()
proc.wait()
if output == str(not IS_64BIT):
return filename
test_args = ["-c", "import sys; sys.stdin.read()"]
def setUp(self):
super().setUp()
other_python = self.find_other_interpreter()
if other_python is None:
raise unittest.SkipTest(
"could not find interpreter with opposite bitness")
if IS_64BIT:
self.python64 = sys.executable
self.python32 = other_python
else:
self.python64 = other_python
self.python32 = sys.executable
env = os.environ.copy()
env["THINK_OF_A_NUMBER"] = str(os.getpid())
self.proc32 = self.spawn_testproc(
[self.python32] + self.test_args,
env=env,
stdin=subprocess.PIPE)
self.proc64 = self.spawn_testproc(
[self.python64] + self.test_args,
env=env,
stdin=subprocess.PIPE)
def tearDown(self):
super().tearDown()
self.proc32.communicate()
self.proc64.communicate()
def test_cmdline_32(self):
p = psutil.Process(self.proc32.pid)
self.assertEqual(len(p.cmdline()), 3)
self.assertEqual(p.cmdline()[1:], self.test_args)
def test_cmdline_64(self):
p = psutil.Process(self.proc64.pid)
self.assertEqual(len(p.cmdline()), 3)
self.assertEqual(p.cmdline()[1:], self.test_args)
def test_cwd_32(self):
p = psutil.Process(self.proc32.pid)
self.assertEqual(p.cwd(), os.getcwd())
def test_cwd_64(self):
p = psutil.Process(self.proc64.pid)
self.assertEqual(p.cwd(), os.getcwd())
def test_environ_32(self):
p = psutil.Process(self.proc32.pid)
e = p.environ()
self.assertIn("THINK_OF_A_NUMBER", e)
self.assertEqual(e["THINK_OF_A_NUMBER"], str(os.getpid()))
def test_environ_64(self):
p = psutil.Process(self.proc64.pid)
try:
p.environ()
except psutil.AccessDenied:
pass
# ===================================================================
# Windows services
# ===================================================================
@unittest.skipIf(not WINDOWS, "WINDOWS only")
class TestServices(PsutilTestCase):
def test_win_service_iter(self):
valid_statuses = set([
"running",
"paused",
"start",
"pause",
"continue",
"stop",
"stopped",
])
valid_start_types = set([
"automatic",
"manual",
"disabled",
])
valid_statuses = set([
"running",
"paused",
"start_pending",
"pause_pending",
"continue_pending",
"stop_pending",
"stopped"
])
for serv in psutil.win_service_iter():
data = serv.as_dict()
self.assertIsInstance(data['name'], str)
self.assertNotEqual(data['name'].strip(), "")
self.assertIsInstance(data['display_name'], str)
self.assertIsInstance(data['username'], str)
self.assertIn(data['status'], valid_statuses)
if data['pid'] is not None:
psutil.Process(data['pid'])
self.assertIsInstance(data['binpath'], str)
self.assertIsInstance(data['username'], str)
self.assertIsInstance(data['start_type'], str)
self.assertIn(data['start_type'], valid_start_types)
self.assertIn(data['status'], valid_statuses)
self.assertIsInstance(data['description'], str)
pid = serv.pid()
if pid is not None:
p = psutil.Process(pid)
self.assertTrue(p.is_running())
# win_service_get
s = psutil.win_service_get(serv.name())
# test __eq__
self.assertEqual(serv, s)
def test_win_service_get(self):
ERROR_SERVICE_DOES_NOT_EXIST = \
psutil._psplatform.cext.ERROR_SERVICE_DOES_NOT_EXIST
ERROR_ACCESS_DENIED = psutil._psplatform.cext.ERROR_ACCESS_DENIED
name = next(psutil.win_service_iter()).name()
with self.assertRaises(psutil.NoSuchProcess) as cm:
psutil.win_service_get(name + '???')
self.assertEqual(cm.exception.name, name + '???')
# test NoSuchProcess
service = psutil.win_service_get(name)
if PY3:
args = (0, "msg", 0, ERROR_SERVICE_DOES_NOT_EXIST)
else:
args = (ERROR_SERVICE_DOES_NOT_EXIST, "msg")
exc = WindowsError(*args)
with mock.patch("psutil._psplatform.cext.winservice_query_status",
side_effect=exc):
self.assertRaises(psutil.NoSuchProcess, service.status)
with mock.patch("psutil._psplatform.cext.winservice_query_config",
side_effect=exc):
self.assertRaises(psutil.NoSuchProcess, service.username)
# test AccessDenied
if PY3:
args = (0, "msg", 0, ERROR_ACCESS_DENIED)
else:
args = (ERROR_ACCESS_DENIED, "msg")
exc = WindowsError(*args)
with mock.patch("psutil._psplatform.cext.winservice_query_status",
side_effect=exc):
self.assertRaises(psutil.AccessDenied, service.status)
with mock.patch("psutil._psplatform.cext.winservice_query_config",
side_effect=exc):
self.assertRaises(psutil.AccessDenied, service.username)
# test __str__ and __repr__
self.assertIn(service.name(), str(service))
self.assertIn(service.display_name(), str(service))
self.assertIn(service.name(), repr(service))
self.assertIn(service.display_name(), repr(service))
if __name__ == '__main__':
from psutil.tests.runner import run_from_name
run_from_name(__file__)