Commit Graph

133 Commits

Author SHA1 Message Date
Christopher Faylor 462f4effb1 * mmap.cc: Clean up *ResourceLock calls throughout.
* thread.cc (pthread_cond::TimedWait): Check for WAIT_TIMEOUT as well as
WAIT_ABANDONED.
(__pthread_cond_timedwait): Calculate a relative wait from the abstime
parameter.
2001-06-26 14:47:48 +00:00
Corinna Vinschen b78d6f6e7b * mmap.cc (mmap): Drop usage of the same memory area if the same
region of the same file is mapped twice.
2001-04-19 07:44:34 +00:00
Christopher Faylor 0381fec68f Throughout, change fdtab references to cygheap->fdtab.
* child_info.h (cygheap_exec_info): Eliminate special fdtab stuff.
* spawn.cc (spawn_guts): Ditto.
* cygheap.cc (cygheap_init): Initialize fdtab, if appropriate.
* cygheap.h (CYGHEAPSIZE): Include size of init_cygheap.
(_cmalloc_entry): Include fdtab here.
* dtable.h (dtable): Declare/define new methods.
* dtable.cc (dtable::vfork_child_fixup): New method.
(dtable::fixup_after_exec): Remove unneeded extra arguments.
* dcrt0.cc (dll_crt0_1): Ditto.
* environ.cc (getwinenv): Use case sensitive comparison.
(winenv): Make a copy of environment cache to avoid realloc problems when
duplicate environment variables exist in the environment.  (From Egor Duda)
* net.cc (cygwin_socket): Revert Apr 14 change.
* include/sys/file.h: Protect against previous X_OK definition.
* passwd.cc: Eliminate passwd_sem throughout.
* security.cc: Ditto.
* cygwin.din: Export New functions.
* passwd.cc (read_etc_passwd): Make race safe.
(getpwuid_r): New function.
(getpwnam_r): New function.
2001-04-18 21:10:15 +00:00
Corinna Vinschen 7ade56ca6a * mmap.cc: Move fh_paging_file from some functions to be
a global static variable.
        (class mmap_record): Add `devtype_' member to remember
        the device type of the file. Add declaration for methods
        `get_device', `alloc_fh' and `free_fh'.
        (mmap_record::mmap_record): Initialize `devtype_' correctly.
        (mmap_record::alloc_fh): New method.
        (mmap_record::free_fh): Ditto.
        (munmap): Use new mmap_record::alloc_fh and mmap_record::free_fh
        methods to create a correct fhandler.
        (msync): Ditto.
        (fixup_mmaps_after_fork): Ditto.
2001-04-16 17:26:04 +00:00
Corinna Vinschen 37a2d97a31 * mmap.cc (mmap): Fix conditional for previous patch. 2001-03-27 09:35:39 +00:00
Corinna Vinschen 1636a5a1e8 * mmap.cc (mmap): Outflank copy-on-write problem on 9x by
setting access mode to FILE_MAP_READ when read access is requested.
2001-03-26 18:17:15 +00:00
Corinna Vinschen 98750a8404 * mmap.cc (map::get_list_by_fd): Avoid calling `get_namehash' when
file descriptor is -1.
2001-03-19 13:33:51 +00:00
Corinna Vinschen 675412e9d6 * mmap.cc (fhandler_disk_file::mmap): Use `addr' correctly.
* fhandler_mem.cc (fhandler_dev_mem::mmap): Ditto.
2001-02-23 09:49:19 +00:00
Corinna Vinschen 889109ab1f * mmap.cc (mmap): Check for reusing a mapping only on MAP_SHARED
and on MAP_PRIVATE|MAP_ANON in the special case of offset 0.
2001-02-08 21:10:45 +00:00
Corinna Vinschen db49d0b530 * mmap.cc (class list): Add member `hash'.
(list::list): Initialize `hash'.
        (list::get_list_by_fd): Use filepath hash value to get the correct
        mapping list if it's not an anonymous mapping.
        (map::add_list): Initialize `hash' with filepath hash value.
        (mmap): Check for reusing a mapping only on MAP_SHARED.
2001-02-08 21:02:36 +00:00
Corinna Vinschen cada03f92f * mmap.cc (mmap_record::fixup_map): New method to duplicate
the memory protection in a just forked child.
        (mmap): Realign gran_len to page boundary only on anonymous
        mapping before saving in the mmap_record.
        (munmap): Cleanup code.
        (msync): Ditto.
        (fixup_mmaps_after_fork): Ditto. Call mmap_record::fixup_map now.
2001-02-05 12:36:41 +00:00
Corinna Vinschen 68ea0dc2fc * mmap.cc (mmap): Remove obsolete check for MAP_SHARED|MAP_ANON as
being invalid.
2001-01-29 13:39:17 +00:00
Corinna Vinschen f977222f70 * mmap.cc (mmap_record::find_empty): Fix loop condition. 2001-01-29 09:25:10 +00:00
Corinna Vinschen 174f1a392e * mmap.cc (fhandler_disk_file::mmap): Call CreateFileMapping with
len != 0 only when performing an anonymous mapping.
2001-01-24 04:00:41 +00:00
Corinna Vinschen 9fedfd57d4 * mmap.cc (mmap): Initialize fh to avoid compiler warnings. 2001-01-16 17:02:46 +00:00
Corinna Vinschen 9334c89c1d * mmap.cc (mmap): Add more parameter checking. Change error output
in case of EINVAL. Treat mmapping /dev/zero like MAP_ANONYMOUS.
2001-01-15 22:18:14 +00:00
Corinna Vinschen c6dd43f263 * mmap.cc: include <unistd.h>. Define some bit operations for
the new page map.
        (mmap_record): Change type of base_address_ to caddr_t.
        Add map_map_ member. Add several methods to manipulate map_map_.
        (mmap_record::alloc_map): New method.
        (mmap_record::free_map): Ditto.
        (mmap_record::find_empty): Ditto.
        (mmap_record::map_map): Ditto.
        (mmap_record::unmap_map): Ditto.
        (list::add_record): Change return type to `mmap_record *'.
        Allocate page map.
        (list::match): New method.
        (mmap): Partly rewritten to take care for the new page map. Add some
        parameter checking.
        (munmap): Ditto.
2001-01-15 19:42:33 +00:00
Corinna Vinschen c4efddf601 * fhandler.h (fhandler_base): New method `fixup_mmap_after_fork'.
(fhandler_disk_file: Ditto.
        (fhandler_dev_mem): Ditto.
        * fhandler_mem.cc (fhandler_dev_mem::open): Set OBJ_INHERIT attribute
        for device\physicalmemory handle.
        (fhandler_dev_mem::mmap): Ditto.
        * fhandler_mem.cc (fhandler_dev_mem::fixup_mmap_after_fork): New method.
        * mmap.cc (mmap_record): Add private `fdesc_' member. Change constructor
        accordingly.
        (get_fd): New method.
        (mmap): Use new mmap_record constructor.
        (fhandler_base::fixup_mmap_after_fork): New method.
        (fhandler_disk_file::fixup_mmap_after_fork): Ditto.
        (fixup_mmaps_after_fork): Call `fixup_mmap_after_fork' of appropriate
        fhandler class.
2001-01-11 12:33:12 +00:00
Christopher Faylor 95ec0f241f * mmap.cc (munmap): Check that mmap and munmap length match. 2000-11-28 21:25:45 +00:00
Christopher Faylor 84aeff4126 Throughout use myself->ppid_handle rather than parent_alive.
* child_info.h (child_info): Eliminate parent_alive.
* dcrt0.cc (dll_crt0_1): Call fork_init for debugging pid creation.
* fork.cc (fork_child): Reflect change to fixup_mmaps_after_fork arguments.
(slow_pid_reuse): New function to grab last 'n' pids to prevent pid reuse.
(fork_parent): Move last_fork_proc into slow_pid_reuse.  Handle fork_pids
debugging.  Eliminate unnecessary call to set_child_mmap_ptr.
(fork_init): New debugging function.
* mmap.cc (fixup_mmaps_after_fork): Renamed from recreate_mmaps_after_fork.
Rely on copied data after a fork.
(set_child_mmap_ptr): Eliminate.
* pinfo.h (_pinfo): Eliminate parent_alive, mmap_ptr and reflect above changes.
* spawn.cc (spawn_guts): Eliminate vestiges of "old way" of sending new hProc
to parent process.
2000-11-15 06:27:48 +00:00
Christopher Faylor 166b2571ce * Makefile.in: Remove some obsolete stuff.
* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate.  Set
myself->uid from parent version.  Just use ThreadItem Init method.  Close or
store hexec_proc as appropriate.
(_dll_crt0): Store user_data->forkee here so that proper tests can be made
subsequently.
(do_exit): Remove hExeced stuff.
* environ.cc (environ_init): Accept environ count as well as environ pointer.
* environ.h: Reflect above change.
* pinfo.cc (pinfo_init): Ditto.  Accept environ count.
(fixup_in_spawned_child): Remove.
* spawn.cc (spawn_guts): Move signal code to dll_crt0_1.  Don't suspend execing
process since it is no longer necessary.  Store envc.
* exceptions.cc (signal_fixup_after_exec): New function.
(call_handler): Remove hExeced test.
* child_info.h (cygheap_exec_info): Store envc as well as envp.
(child_info_spawn): Store hexec_proc so that it can be closed in child.
* path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf.
(normalize_win32_path): Ditto.
(cwdstuff::get_initial): Always set lock.
* sigproc.h: Remove hExeced.
* strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced.
* thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method.
(MTinterface::Init1): Eliminate.
(MTinterface::ClearReent): Eliminate.
* thread.h: Reflect above changes.
* include/sys/strace.h (strace): Make microseconds() public.  Make various
functions 'regparm', throughout.
* pinfo.h (_pinfo): Inline simple signal manipulation functions.  Requires
inclusion of thread.h which was removed from .cc files, where appropriate.
throughout.
* pinfo.cc: Eliminate signal manipulation functions.
(_pinfo::exit): Calculate total rusage for exiting process here.
* cygheap.cc (size2bucket): Eliminate.
(init_buckets): Ditto.
(_cmalloc): Calculate size and bits in a loop rather than going through a
function call.
(_crealloc): Use stored array index to calculate allocated size.
* spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
2000-10-16 23:55:58 +00:00
Corinna Vinschen 4ea34a6850 * fhandler.h (fhandler_dev_mem): Add methods mmap, munmap and msync.
Add `unit' member.
        * fhandler_mem.cc (fhandler_dev_mem): Initialize `unit' as well.
        (init): Care for differences between /dev/mem, /dev/kmem (not
        implemented yet) and /dev/port.
        (open): Change debug message to reflect the device.
        (mmap): New function.
        (munmap): Ditto.
        (msync): Ditto.
        (fstat): Use unit when setting st_dev in stat structure.
        * mmap.cc (mmap): Handle MAP_ANONYMOUS flag.
        Change error handling slightly.
        * path.cc (get_device_number): Handle /dev/port.
2000-10-07 17:35:36 +00:00
Corinna Vinschen d12eba25a5 =====================================
These changes require rebuilding all.
        =====================================
        * fhandler.h: Add mmap(), munmap() and msync() to fhandler_base
        and fhandler_disk_file.
        * mmem.cc (mmap): Eliminated device dependent implementation details.
        These are moved to the appropriate fhandler class.
        (munmap): Ditto.
        (msync): Ditto.
        (fhandler_base::mmap): New method.
        (fhandler_base::munmap): Ditto.
        (fhandler_base::msync): Ditto.
        (fhandler_disk_file::mmap): Ditto.
        (fhandler_disk_file::munmap): Ditto.
        (fhandler_disk_file::msync): Ditto.
2000-10-05 13:07:02 +00:00
Christopher Faylor f0338f545d Break out more header info into separate files. Use appropriate header files
throughout.
* shared.h: Remove.
* cygwin_version.h: New file.
* delqueue.h: New file.
* environ.h: New file.
* host_dependent.h: New file.
* perprocess.h: New file.
* registry.h: New file.
* security.h: New file.
2000-09-08 02:56:55 +00:00
Christopher Faylor b0e82b74fb * Makefile.in: Add cygheap.o.
* child_info.h: Add specific exec class.
* cygheap.h: New file.  Contains declarations for cygwin heap.
* cygheap.cc: New file.  Implements cygwin heap functions.
* dcrt0.cc (quoted): Simplify due to new method for passing arguments between
cygwin programs.
(alloc_stack_hard_way): Attempt to handle overlapped stack.
(dll_crt0_1): Move child_info processing here.  Accomodate new method for
passing arguments between cygwin programs.  Initialize cygwin heap.  Establish
__argc and __argv variables.
(_dll_crt0): Move most of child_info processing to dll_crt0_1.
(cygwin_dll_init): Remove duplication.
* dtable.cc (dtable::extend): Allocate dtable using cygwin heap.
(dtable::build_fhandler): Ditto for fhandler type being constructed.
(dtable::dup_worker): Free new fhandler from cygwin heap on error.
(dtable::select_*): Don't assume that this == fdtab.
(dtable::linearize_fd_array): Delete.
(dtable::delinearize_fd_array): Delete.
(dtable::fixup_after_exec): New file.
(dtable::vfork_child_dup): Use cygwin heap.
(dtable::vfork_parent_restore): Ditto.
* dtable.h: Remove obsolete methods.  Add new method.
* environ.cc (posify): Eliminate already_posix parameter and logic.
(envsize): New function.
(_addenv): Use envsize.
(environ_init): Accept an argument pointing to an existing environment list.
If supplied, allocate space for this in the the program's heap.
* fhandler.cc (fhandler_base::operator =): Move here from fhandler.h.  Use
cygwin heap to allocate filenames.
(fhandler_base::set_name): Allocate/free names from cygwin heap.
(fhandler_base::linearize): Delete.
(fhandler_base::de_linearize): Delete.
(fhandler_base::operator delete): Free from cygwin heap.
(fhandler_base::~fhandler_base): Ditto.
* fhandler.h: Accomodate elimination of *linearize and other changes above.
* fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from
de_linearize.
* heap.h: New file.
* fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for
name.  fhandler_tty::fixup_after_exec): Rename from de_linearize.
* fork.cc (fork): Call cygheap_fixup_in_child.
* heap.cc: Use declarations in heap.h.
* malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc
something from the cygwin heap.
* path.cc: Throughout, eliminate use of per-thread cache for cwd.  Use cwd_*
functions rather than cwd_* variables to access cwd_win32 and cwd_posix.
(cwd_win32): New function.
(cwd_posix): New function.
(cwd_hash): New function.
(cwd_fixup_after_exec): New function.
* path.h: Accomodate path.cc changes.
* pinfo.cc (pinfo_init): Accept a pointer to an environment table.  Pass this
to environ_init.  Eliminate old 'title' tests.
* pinfo.h: Accomodate above change in argument.
* spawn.cc (struct av): New method for building argv list.
(av::unshift): New method.
(spawn_guts): Allocate everything that the child process needs in the cygwin
heap and pass a pointer to this to the child.  Build argv list using new
method.  Eliminate delinearize stuff.
* thread.h: Eliminate _cwd_win32 and _cwd_posix buffers.
* winsup.h: Eliminate obsolete functions.  Add envsize() declaration.
2000-09-03 04:16:35 +00:00
Christopher Faylor bccd5e0d85 * winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h files
only in sources which require them.
* Makefile.in: Generate dependencies with -MD option.
2000-08-22 05:10:20 +00:00
Christopher Faylor 9e2baf8dfa * cygerrno.h: New file. Use this throughout whenever errno manipulation is
required.
* errno.cc: Use DWORD to hold Windows errors.
(geterrno_from_win_error): New function.
(seterrno_from_win_error): Use geterrno_from_win_error to convert supplied
windows error (suggested by Corinna Vinschen).
* path.cc (symlink_info): Add error element.
* path.cc (path_conv::check): Remove errno setting.  Use new symlink_info errno
element to set path_conv error, where appropriate.
(symlink_info::check): Set error element rather than attempting to manipulate
errno.  Add more checks for trailing / and /..  even though they are currently
useless.  Avoid setting EINVAL.
* path.cc (normalize_posix_path): Correct check for trailing /.
2000-08-22 03:58:47 +00:00
Christopher Faylor e2ebe11776 * winsup.h: Split out dtable definitions into separate header file.
* dtable.h: New file.
* sigproc.h: Eliminate pinfo.h usage here.  Use it in source files that need
it.
2000-08-12 05:35:42 +00:00
Christopher Faylor 9015e0fb8c Rename hinfo -> dtable. Name the former dtable array 'fdtab'. 2000-08-12 04:48:44 +00:00
DJ Delorie 4c8d72ded5 * winsup.h: take out protections of environ, errno, allow C use
* *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__);
use cur_environ() instead of just environ
* times.cc: remove import protections
* glob.c: add winsup.h
* localtime.c: ditto
* smallprint.c: ditto
* Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
2000-08-02 16:28:18 +00:00
Christopher Faylor 84c7d40932 * include/cygwin/version.h: Bump DLL minor version number to 5 due to all of
the changes below.  Redefine process structure to avoid a fixed size table.
Redefine pinfo/_pinfo classes.  Use these throughout.
* dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change.
(__api_fatal): Accomodate _pinfo::record_death argument change.
* exceptions.cc (really_exit): Ditto.
(sig_handle_tty_stop): Use pinfo constructor to access process info.
(events_init): Don't create pinfo_mutex since it is no longer required.
* external.cc (fillout_pinfo): Use winpids class to iterate over all system
pids.
(cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops.
* fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to
access process info.
* fork.cc (fork): Reorganize to initialize child info after the child has
started since that is when we know the child's winpid, which is necessary to
allocate the pinfo shared memory.
* mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo.
* pinfo.cc: Rename pinfo methods to _pinfo throughout.  Eliminate pinfo_list
stuff.
(set_myself): Accept a pid argument now.  Call pinfo initializer to initialize
myself.  Detect when this is an "execed" process and create an "indirect" pid
block.
(pinfo_init): Accomodate set_myself arg change.
(procinfo): Remove.
(pinfo::lock_pinfo): Remove.
(pinfo::unlock_pinfo): Remove.
(pinfo::init): New method.  Allocates shared memory space for process pinfo
structure.
(pinfo::record_death): Don't call locking functions.
(cygwin_winpid_to_pid): Simplify by using new pinfo constructor.
(EnumProcessesW95): New function for iterating over processes on Windows 95.
(winpids::winpids): New constructor for winpids class.  Sets up a list of
process ids.
(enum_init): Initialize w95/wnt pid enumerators.
* shared.cc (shared-info::initialize): Remove pid initialization.
* shared.h: Move pinfo stuff into pinfo.h.
(class shared_info): Remove pinfo_list element.
* signal.cc (kill_worker): Use pinfo constructor to access process info.
(kill_pgrp): Ditto.  Use winpids methods to access list of processes.
* sigproc.cc: Throughout, modify to use _pinfo where appropriate.
(proc_exists (pid_t)): New function.  Determines if a process exists based on
the pid.
(proc_exists (_pinfo *p): Use new proc_exists function above.
(proc_subproc): Copy pinfo stuff around rather than _pinfo pointers.  Try to be
careful about releasing shared memory when we don't need it anymore.  Remove
pinfo locks.
(remove_zombies): Remove pinfo memory when zombie is going away.
* sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc.
* spawn.cc (spawn_guts): Eliminate pinfo *child argument.  Reorganize to only
initialize child pinfo after process has been started and we know the windows
pid.
(_spawnve): Reflect spawn_guts changes.
* syscalls.cc (setpgid): Use pinfo constructor to access process info.
(getpgid): Ditto.
(internal_getlogin): Use _pinfo.
* winsup.h: Eliminate pinfo_mutex.  Eliminate spawn_guts declaration since it
is static now.  Reflect set_myself argument change.
* include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff.
* include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-29 16:24:59 +00:00
DJ Delorie cfe11d7465 * mmap.cc (list::erase): Increment loop counter.
(map::erase): Likewise.
2000-05-11 22:30:45 +00:00
Christopher Faylor 1fd5e000ac import winsup-2000-02-17 snapshot 2000-02-17 19:38:33 +00:00