Reportedly, the maximum pid of 65536 is much too small in bigger
environments. Raise the maximum PID to 4194304, whihc is the maximum
pid on Linux (PID_MAX_LIMIT defined in include/linux/threads.h).
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
If a realtime policy is selected, set the '(18) priority' field to the
negated sched_priority minus one. If SCHED_IDLE is selected, set it to
the lowest priority 39. Also set '(19) nice' to the originally requested
nice value. Ensure consistence with the current Windows priority in all
cases. Move the sched_priority from/to Windows priority mapping from
sched_get/setparam() to new functions in miscfuncs.cc.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Add SCHED_RESET_ON_FORK to <sys/sched.h>. If this flag is set, SCHED_FIFO
and SCHED_RR are reset to SCHED_OTHER and negative nice values are reset to
zero in each child process created with fork(2).
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Add SCHED_BATCH to <sys/sched.h>. SCHED_BATCH is similar to SCHED_OTHER,
except that the nice value is mapped to a one step lower Windows priority.
Rework the mapping functions to ease the addition of this functionality.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
cygpath automatically adds the root-local prefix \\?\ automatically
for paths exceeding 260 bytes. However, it does not add the root-local
prefix if the path contains path components invalid in DOS paths, for
instance path components with trailing dots or spaces.
Add the -r option to always add the root-local prefix to the path.
Add the option to the documentation and improve the help text.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Add SCHED_IDLE to <sys/sched.h>. If SCHED_IDLE is selected, preserve
the nice value and set the Windows priority to IDLE_PRIORITY_CLASS.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
If SCHED_OTHER is selected, set the Windows priority according to the
nice value. If SCHED_FIFO or SCHED_RR is selected, preserve the nice
value and set the Windows priority according to the sched_priority
parameter.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Return new nice value instead of 0 on success.
Set errno to EPERM instead of EACCES on failure.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Windows silently sets a lower priority than requested if the new priority
requires administrator privileges. Revert to previous priority and fail
with EACCES or EPERM in this case.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Provide libaio.a for those projects (such as stress-ng) checking for
POSIX aio support by looking for this library at configure time.
A release note is provided for Cygwin 3.6.0.
Signed-off-by: Mark Geisert <mark@maxrnd.com>
Fixes: N/A (new code)
Previously, sigfe had a bug that the signal handler destroys fpu state.
This is caused by fninit instruction in sigdelayed. With this patch,
saving/restoring the FPU/SIMD state is done using fxsave/fxrstor or
xsave/xrstor rather than fnstcw/fldcw, stmxcsr/ldmxcsr and push/pop
xmm0-xmm15. Since xsave/xrstor is used, not only x87/MMX/SSE states
but also AVX/AVX2/AVX-512 states can be maintained unlike before.
Addresses: https://cygwin.com/pipermail/cygwin/2024-October/256503.html
Fixes: ed89fbc3ff11 ("* gendef (sigdelayed (x86_64)): Save and restore FPU control word.")
Reported-by: Christian Franke <Christian.Franke@t-online.de>
Suggested-by: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
Previously, cygwin read pipe used non-blocking mode although non-
cygwin app uses blocking-mode by default. Despite this requirement,
if a cygwin app is executed from a non-cygwin app and the cygwin
app exits, read pipe remains on non-blocking mode because of the
commit fc691d0246b9. Due to this behaviour, the non-cygwin app
cannot read the pipe correctly after that. Similarly, if a non-
cygwin app is executed from a cygwin app and the non-cygwin app
exits, the read pipe mode remains on blocking mode although cygwin
read pipe should be non-blocking mode.
These bugs were provoked by pipe mode toggling between cygwin and
non-cygwin apps. To make management of pipe mode simpler, this
patch has re-designed the pipe implementation. In this new
implementation, both read and write pipe basically use only blocking
mode and the behaviour corresponding to the pipe mode is simulated
in raw_read() and raw_write(). Only when NtQueryInformationFile
(FilePipeLocalInformation) fails for some reasons, the raw_read()/
raw_write() cannot simulate non-blocking access. Therefore, the pipe
mode is temporarily changed to non-blocking mode.
Moreover, because the fact that NtSetInformationFile() in
set_pipe_non_blocking(true) fails with STATUS_PIPE_BUSY if the pipe
is not empty has been found, query handle is not necessary anymore.
This allows the implementation much simpler than before.
Addresses: https://github.com/git-for-windows/git/issues/5115
Fixes: fc691d0246b9 ("Cygwin: pipe: Make sure to set read pipe non-blocking for cygwin apps.");
Reported-by: isaacag, Johannes Schindelin <Johannes.Schindelin@gmx.de>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>, Ken Brown <kbrown@cornell.edu>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
Continue using WSD for enumerating //, but switch back to
WNet for enumerating shares.
Add trying to enumerate NFS shares for machine names given as FQDN.
Only downcase server names, keep case of shares intact.
Move downcasing into dir_cache class.
Add a comment to explain an extrem weirdness in Windows.
Fixes: 205190a80bd0 ("Cygwin: // and //server: switch to Network Discovery")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
SMBv1 is ultimately deprecated since Novemer 2023. It's also
not installed by default on latest Windows versions.
Drop using the WNet (SMBv1) API in favor of using Network Discovery.
Given there's no documented Win32 API for that, the code now uses
the Shell API.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
So far ps(1) always prints the full path of the executable under
the COMMAND heading.
With -f, print the command line instead.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Basically maintain a hidden DIR* inside fhandlers.
- lseek has to be tweaked to allow basic seeking on the directory
descriptor.
- the current implementation does not keep the dir positions
between duplicated descriptor in sync. In fact, every descriptor
keeps its own copy of the DIR* and after dup/fork/exec, the
directory position is reset to 0, i. e., to the start of the
directory, as if rewinddir() has been called on the new descriptors.
While this behaviour isn't yet covered by the Issue 8 draft,
a bug report along these lines exists and will probably be
picked up for TC1.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
