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Visual C++

ChangeLog：源码内容

(ptw32_processInitialize): Init new constant ptw32_exception_services.
* create.c (pthread_create): Initialise thread's cancelLock
mutex.
* cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except'
usage immune to redfinition s in pthread.h.
* private.c: Ditto.
* pthread.h (catch): Redefine 'catch' so that C++ applications
won't catch our internal exceptions.
(__except): ditto for __except.
* implement.h (ptw32_catch): Define internal version
of 'catch' because 'catch' is redefined by pthread.h.
(__except): ditto for __except.
(struct pthread_t_): Add cancelLock mutex for async cancel
safety.
1999-11-21 Jason Nye <jnye at nbnet.nb.ca>, Erik Hensema <erik.hensema at group2000.nl>
* cancel.c (ptw32_cancel_self): New; part of the async
cancellation implementation.
(ptw32_cancel_thread): Ditto; this function is X86
processor specific.
(pthread_setcancelstate): Add check for pending async
cancel request and cancel the calling thread if
required; add async-cancel safety lock.
(pthread_setcanceltype): Ditto.
1999-11-13 Erik Hensema <erik.hensema at group2000.nl>
* configure.in (AC_OUTPUT): Put generated output into GNUmakefile
rather than Makefile. Makefile will become the MSC nmake compatible
version
1999-11-13 John Bossom (John.Bossom@cognos.com>
* misc.c (pthread_self): Add a note about GetCurrentThread
returning a pseudo-handle
1999-11-10 Todd Owen <towen at lucidcalm.dropbear.id.au>
* dll.c (dllMain): Free kernel32 ASAP.
If TryEnterCriticalSection is not being used, then free
the kernel32.dll handle now, rather than leaving it until
DLL_PROCESS_DETACH.
Note: this is not a pedantic exercise in freeing unused
resources! It is a work-around for a bug in Windows 95
(see microsoft knowledge base article, Q187684) which
does Bad Things when FreeLibrary is called within
the DLL_PROCESS_DETACH code, in certain situations.
Since w95 just happens to be a platform which does not
provide TryEnterCriticalSection, the bug will be
effortlessly avoided.
1999-11-10 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c (pthread_join): Make it a deferred cancelation point.
* misc.c (pthread_self): Explicitly initialise implicitly
created thread state to default values.
1999-11-05 Tristan Savatier <tristan at mpegtv.com>
* pthread.h (winsock.h): Include unconditionally.
(ETIMEDOUT): Change fallback value to that defined by winsock.h.
* general: Patched for portability to WinCE. The details are
described in the file WinCE-PORT. Follow the instructions
in README.WinCE to make the appropriate changes in config.h.
1999-10-30 Erik Hensema <erik.hensema at group2000.nl>
* create.c (pthread_create): Explicitly initialise thread state to
default values.
* cancel.c (pthread_setcancelstate): Check for NULL 'oldstate'
for compatibility with Solaris pthreads;
(pthread_setcanceltype): ditto:
1999-10-23 Erik Hensema <erik.hensema at group2000.nl>
* pthread.h (ctime_r): Fix incorrect argument "_tm"
1999-10-21 Aurelio Medina <aureliom at crt.com>
* pthread.h (_POSIX_THREADS): Only define it if it isn't
already defined. Projects may need to define this on
the CC command line under Win32 as it doesn't have unistd.h
1999-10-17 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* rwlock.c (pthread_rwlock_destroy): Add cast to remove compile
warning.
* condvar.c (pthread_cond_broadcast): Only release semaphores
if there are waiting threads.
1999-10-15 Lorin Hochstein <lmh at xiphos.ca>, Peter Slacik <Peter.Slacik at tatramed.sk>
* condvar.c (cond_wait_cleanup): New static cleanup handler for
cond_timedwait;
(cond_timedwait): pthread_cleanup_push args changed;
canceling a thread while it's in pthread_cond_wait
will now decrement the waiters count and cleanup if it's the
last waiter.
1999-10-15 Graham Dumpleton <Graham.Dumpleton at ra.pad.otc.telstra.com.au>
* condvar.c (cond_wait_cleanup): the last waiter will now reset the CV's
wasBroadcast flag
Thu Sep 16 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* rwlock.c (pthread_rwlock_destroy): Add serialisation.
(_rwlock_check_need_init): Check for detroyed rwlock.
* rwlock.c: Check return codes from _rwlock_check_need_init();
modify comments; serialise access to rwlock objects during
operations; rename rw_mutex to rw_lock.
* implement.h: Rename rw_mutex to rw_lock.
* mutex.c (pthread_mutex_destroy): Add serialisation.
(_mutex_check_need_init): Check for detroyed mutex.
* condvar.c (pthread_cond_destroy): Add serialisation.
(_cond_check_need_init): Check for detroyed condvar.
* mutex.c: Modify comments.
* condvar.c: Modify comments.
1999-08-10 Aurelio Medina <aureliom at crt.com>
* implement.h (pthread_rwlock_t_): Add.
* pthread.h (pthread_rwlock_t): Add.
(PTHREAD_RWLOCK_INITIALIZER): Add.
Add rwlock function prototypes.
* rwlock.c: New module.
* pthread.def: Add new rwlock functions.
* private.c (ptw32_processInitialize): initialise
ptw32_rwlock_test_init_lock critical section.
* global.c (ptw32_rwlock_test_init_lock): Add.
* mutex.c (pthread_mutex_destroy): Don't free mutex memory
if mutex is PTHREAD_MUTEX_INITIALIZER and has not been
initialised yet.
1999-08-08 Milan Gardian <mg at tatramed.sk>
* mutex.c (pthread_mutex_destroy): Free mutex memory.
1999-08-22 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* exit.c (pthread_exit): Fix reference to potentially
uninitialised pointer.
1999-08-21 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_threadStart): Apply fix of 1999-08-19
this time to C++ and non-trapped C versions. Ommitted to
do this the first time through.
1999-08-19 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_threadStart): Return exit status from
the application thread startup routine.
- Milan Gardian <mg at tatramed.sk>
1999-08-18 John Bossom <john.Bossom at cognos.com>
* exit.c (pthread_exit): Put status into pthread_t->exitStatus
* private.c (ptw32_threadStart): Set pthread->exitStatus
on exit of try{} block.
* sync.c (pthread_join): use pthread_exitStatus value if the
thread exit doesn't return a value (for Mingw32 CRTDLL
which uses endthread instead of _endthreadex).
Tue Aug 17 20:17:58 CDT 1999 Mumit Khan <khan at xraylith.wisc.edu>
* create.c (pthread_create): Add CRTDLL suppport.
* exit.c (pthread_exit): Likewise.
* private.c (ptw32_threadStart): Likewise.
(ptw32_threadDestroy): Likewise.
* sync.c (pthread_join): Likewise.
* tests/join1.c (main): Warn about partial support for CRTDLL.
Tue Aug 17 20:00:08 1999 Mumit Khan <khan at xraylith.wisc.edu>
* Makefile.in (LD): Delete entry point.
* acconfig.h (STDCALL): Delete unused macro.
* configure.in: Remove test for STDCALL.
* config.h.in: Regenerate.
* errno.c (_errno): Fix self type.
* pthread.h (PT_STDCALL): Move from here to
* implement.h (PT_STDCALL): here.
(ptw32_threadStart): Fix prototype.
* private.c (ptw32_threadStart): Likewise.
1999-08-14 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* exit.c (pthread_exit): Don't call pthread_self() but
get thread handle directly from TSD for efficiency.
1999-08-12 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_threadStart): ei[] only declared if _MSC_VER.
* exit.c (pthread_exit): Check for implicitly created threads
to avoid raising an unhandled exception.
1999-07-12 Peter Slacik <Peter.Slacik at tatramed.sk>
* condvar.c (pthread_cond_destroy): Add critical section.
(cond_timedwait): Add critical section; check for timeout
waiting on semaphore.
(pthread_cond_broadcast): Add critical section.
1999-07-09 Lorin Hochstein <lmh at xiphos.ca>, John Bossom <John.Bossom at Cognos.COM>
The problem was that cleanup handlers were not executed when
pthread_exit() was called.
* implement.h (pthread_t_): Add exceptionInformation element for
C++ per-thread exception information.
(general): Define and rename exceptions.
1999-07-09 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (CancelableWait): PTW32_EPS_CANCEL (SEH) and
ptw32_exception_cancel (C++) used to identify the exception.
* cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and
ptw32_exception_cancel (C++) used to identify the exception.
* exit.c (pthread_exit): throw/raise an exception to return to
ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH)
and ptw32_exception_exit (C++) used to identify the exception.
* private.c (ptw32_threadStart): Add pthread_exit exception trap;
clean up and exit the thread directly rather than via pthread_exit().
Sun May 30 00:25:02 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* semaphore.h (mode_t): Conditionally typedef it.
Fri May 28 13:33:05 1999 Mark E. Armstrong <avail at pacbell.net>
* condvar.c (pthread_cond_broadcast): Fix possible memory fault
Thu May 27 13:08:46 1999 Peter Slacik <Peter.Slacik at tatramed.sk>
* condvar.c (pthread_cond_broadcast): Fix logic bug
Thu May 27 13:08:46 1999 Bossom, John <John.Bossom at Cognos.COM>
* condvar.c (pthread_cond_broadcast): optimise sem_post loop
Fri May 14 12:13:18 1999 Mike Russo <miker at eai.com>
* attr.c (pthread_attr_setdetachstate): Fix logic bug
Sat May 8 09:42:30 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.def (sem_open): Add.
(sem_close): Add.
(sem_unlink): Add.
(sem_getvalue): Add.
* FAQ (Question 3): Add.
Thu Apr 8 01:16:23 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* semaphore.c (sem_open): New function; returns an error (ENOSYS).
(sem_close): ditto.
(sem_unlink): ditto.
(sem_getvalue): ditto.
* semaphore.h (_POSIX_SEMAPHORES): define.
Wed Apr 7 14:09:52 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* errno.c (_REENTRANT || _MT): Invert condition.
* pthread.h (_errno): Conditionally include prototype.
Wed Apr 7 09:37:00 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* *.c (comments): Remove individual attributions - these are
documented sufficiently elsewhere.
* implement.h (pthread.h): Remove extraneous include.
Sun Apr 4 11:05:57 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sched.c (sched.h): Include.
* sched.h: New file for POSIX 1b scheduling.
* pthread.h: Move opaque structures to implement.h; move sched_*
prototypes out and into sched.h.
* implement.h: Add opaque structures from pthread.h.
* sched.c (sched_yield): New function.
* condvar.c (ptw32_sem_*): Rename to sem_*; except for
ptw32_sem_timedwait which is an private function.
Sat Apr 3 23:28:00 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* Makefile.in (OBJS): Add errno.o.
Fri Apr 2 11:08:50 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h (ptw32_sem_*): Remove prototypes now defined in
semaphore.h.
* pthread.h (sempahore.h): Include.
* semaphore.h: New file for POSIX 1b semaphores.
* semaphore.c (ptw32_sem_timedwait): Moved to private.c.
* pthread.h (ptw32_sem_t): Change to sem_t.
* private.c (ptw32_sem_timedwait): Moved from semaphore.c;
set errno on error.
* pthread.h (pthread_t_): Add per-thread errno element.
Fri Apr 2 11:08:50 1999 John Bossom <jebossom at cognos.com>
* semaphore.c (ptw32_sem_*): Change to sem_*; these functions
will be exported from the library; set errno on error.
* errno.c (_errno): New file. New function.
Fri Mar 26 14:11:45 1999 Tor Lillqvist <tml at iki.fi>
* semaphore.c (ptw32_sem_timedwait): Check for negative
milliseconds.
Wed Mar 24 11:32:07 1999 John Bossom <jebossom at cognos.com>
* misc.c (CancelableWait): Initialise exceptionInformation[2].
(pthread_self): Get a real Win32 thread handle for implicit threads.
* cancel.c (pthread_testcancel): Initialise exceptionInformation[2].
* implement.h (SE_INFORMATION): Fix values.
* private.c (ptw32_threadDestroy): Close the thread handle.
Fri Mar 19 12:57:27 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* cancel.c (comments): Update and cleanup.
Fri Mar 19 09:12:59 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.
* pthread.h (PTHREAD_CANCELED): defined.
Tue Mar 16 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* all: Add GNU LGPL and Copyright and Warranty.
Mon Mar 15 00:20:13 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (pthread_cond_init): fix possible uninitialised use
of cv.
Sun Mar 14 21:01:59 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (pthread_cond_destroy): don't do full cleanup if
static initialised cv has never been used.
(cond_timedwait): check result of auto-initialisation.
Thu Mar 11 09:01:48 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *);
define a value to serve as PTHREAD_MUTEX_INITIALIZER.
(pthread_mutex_t_): remove staticinit and valid elements.
(pthread_cond_t): revert to (pthread_cond_t_ *);
define a value to serve as PTHREAD_COND_INITIALIZER.
(pthread_cond_t_): remove staticinit and valid elements.
* mutex.c (pthread_mutex_t args): adjust indirection of references.
(all functions): check for PTHREAD_MUTEX_INITIALIZER value;
check for NULL (invalid).
* condvar.c (pthread_cond_t args): adjust indirection of references.
(all functions): check for PTHREAD_COND_INITIALIZER value;
check for NULL (invalid).
Wed Mar 10 17:18:12 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (CancelableWait): Undo changes from Mar 8 and 7.
Mon Mar 8 11:18:59 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (CancelableWait): Ensure cancelEvent handle is the lowest
indexed element in the handles array. Enhance test for abandoned
objects.
* pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not
initialised are set to zero by the compiler. This avoids the
problem of initialising the opaque critical section element in it.
(PTHREAD_COND_INITIALIZER): Ditto.
* semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier.
Sun Mar 7 12:31:14 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (pthread_cond_init): set semaphore initial value
to 0, not 1. cond_timedwait was returning signaled immediately.
* misc.c (CancelableWait): Place the cancel event handle first
in the handle table for WaitForMultipleObjects. This ensures that
the cancel event is recognised and acted apon if both objects
happen to be signaled together.
* private.c (ptw32_cond_test_init_lock): Initialise and destroy.
* implement.h (ptw32_cond_test_init_lock): Add extern.
* global.c (ptw32_cond_test_init_lock): Add declaration.
* condvar.c (pthread_cond_destroy): check for valid initialised CV;
flag destroyed CVs as invalid.
(pthread_cond_init): pthread_cond_t is no longer just a pointer.
This is because PTHREAD_COND_INITIALIZER needs state info to reside
in pthread_cond_t so that it can initialise on first use. Will work on
making pthread_cond_t (and other objects like it) opaque again, if
possible, later.
(cond_timedwait): add check for statically initialisation of
CV; initialise on first use.
(pthread_cond_signal): check for valid CV.
(pthread_cond_broadcast): check for valid CV.
(_cond_check_need_init): Add.
* pthread.h (PTHREAD_COND_INITIALIZER): Fix.
(pthread_cond_t): no longer a pointer to pthread_cond_t_.
(pthread_cond_t_): add 'staticinit' and 'valid' elements.
Sat Mar 6 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Undate comments.
Sun Feb 21 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around
cs element initialiser.
1999-02-21 Ben Elliston <bje at cygnus.com>
* pthread.h (pthread_exit): The return type of this function is
void, not int.
* exit.c (pthread_exit): Do not return 0.
Sat Feb 20 16:03:30 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* dll.c (DLLMain): Expand TryEnterCriticalSection support test.
* mutex.c (pthread_mutex_trylock): The check for
ptw32_try_enter_critical_section == NULL should have been
removed long ago.
Fri Feb 19 16:03:30 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c (pthread_join): Fix pthread_equal() test.
* mutex.c (pthread_mutex_trylock): Check mutex != NULL before
using it.
Thu Feb 18 16:17:30 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (pthread_equal): Fix inverted result.
* Makefile.in: Use libpthread32.a as the name of the DLL export
library instead of pthread.lib.
* condvar.c (pthread_cond_init): cv could have been used unitialised;
initialise.
* create.c (pthread_create): parms could have been used unitialised;
initialise.
* pthread.h (struct pthread_once_t_): Remove redefinition.
Sat Feb 13 03:03:30 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (struct pthread_once_t_): Replaced.
* misc.c (pthread_once): Replace with John Bossom's version;
has lighter weight serialisation; fixes problem of not holding
competing threads until after the init_routine completes.
Thu Feb 11 13:34:14 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (CancelableWait): Change C++ exception throw.
* sync.c (pthread_join): Change FIXME comment - issue resolved.
Wed Feb 10 12:49:11 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* configure: Various temporary changes.
- Kevin Ruland <Kevin.Ruland at anheuser-busch.com>
* README: Update.
* pthread.def (pthread_attr_getstackaddr): uncomment
(pthread_attr_setstackaddr): uncomment
Fri Feb 5 13:42:30 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* semaphore.c: Comment format changes.
Thu Feb 4 10:07:28 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* global.c: Remove ptw32_exception instantiation.
* cancel.c (pthread_testcancel): Change C++ exception throw.
* implement.h: Remove extern declaration.
Wed Feb 3 13:04:44 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup().
* pthread.def: Ditto.
* pthread.h: Ditto.
* pthread.def (pthread_cleanup_push): Remove from export list;
the function is defined as a macro under all compilers.
(pthread_cleanup_pop): Ditto.
* pthread.h: Remove #if defined().
Wed Feb 3 10:13:48 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c (pthread_join): Check for NULL value_ptr arg;
check for detached threads.
Tue Feb 2 18:07:43 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* implement.h: Add #include <pthread.h>.
Change sem_t to ptw32_sem_t.
Tue Feb 2 18:07:43 1999 Kevin Ruland <Kevin.Ruland at anheuser-busch.com>
* signal.c (pthread_sigmask): Add and modify casts.
Reverse LHS/RHS bitwise assignments.
* pthread.h: Remove #include <semaphore.h>.
(PTW32_ATTR_VALID): Add cast.
(struct pthread_t_): Add sigmask element.
* dll.c: Add "extern C" for DLLMain.
(DllMain): Add cast.
* create.c (pthread_create): Set sigmask in thread.
* condvar.c: Remove #include. Change sem_* to ptw32_sem_*.
* attr.c: Changed #include.
* Makefile.in: Additional targets and changes to build the library
as a DLL.
Fri Jan 29 11:56:28 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* Makefile.in (OBJS): Add semaphore.o to list.
* semaphore.c (ptw32_sem_timedwait): Move from private.c.
Rename sem_* to ptw32_sem_*.
* pthread.h (pthread_cond_t): Change type of sem_t.
_POSIX_SEMAPHORES no longer defined.
* semaphore.h: Contents moved to implement.h.
Removed from source tree.
* implement.h: Add semaphore function prototypes and rename all
functions to prepend 'ptw32_'. They are
now private to the pthreads-win32 implementation.
* private.c: Change #warning.
Move ptw32_sem_timedwait() to semaphore.c.
* cleanup.c: Change #warning.
* misc.c: Remove #include <errno.h>
* pthread.def: Cleanup CVS merge conflicts.
* global.c: Ditto.
* ChangeLog: Ditto.
* cleanup.c: Ditto.
Sun Jan 24 01:34:52 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* semaphore.c (sem_wait): Remove second arg to
pthreadCancelableWait() call.
Sat Jan 23 17:36:40 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.def: Add new functions to export list.
* pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New.
(PTHREAD_MUTEX_FORCE_CS_NP): New.
* README: Updated.
Fri Jan 22 14:31:59 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed
with egcs. Add -g for debugging.
* create.c (pthread_create): Replace __stdcall with PT_STDCALL
macro. This is a hack and must be fixed.
* misc.c (CancelableWait): Remove redundant statement.
* mutex.c (pthread_mutexattr_init): Cast calloc return value.
* misc.c (CancelableWait): Add cast.
(pthread_self): Add cast.
* exit.c (pthread_exit): Add cast.
* condvar.c (pthread_condattr_init): Cast calloc return value.
* cleanup.c: Reorganise conditional compilation.
* attr.c (pthread_attr_init): Remove unused 'result'.
Cast malloc return value.
* private.c (ptw32_callUserDestroyRoutines): Redo conditional
compilation.
* misc.c (CancelableWait): C++ version uses 'throw'.
* cancel.c (pthread_testcancel): Ditto.
* implement.h (class ptw32_exception): Define for C++.
* pthread.h: Fix C, C++, and Win32 SEH condition compilation
mayhem around pthread_cleanup_* defines. C++ version now uses John
Bossom's cleanup handlers.
(pthread_attr_t): Make 'valid' unsigned.
Define '_timeb' as 'timeb' for Ming32.
Define PT_STDCALL as nothing for Mingw32. May be temporary.
* cancel.c (pthread_testcancel): Cast return value.
Wed Jan 20 09:31:28 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (pthread_mutexattr_t): Changed to a pointer.
* mutex.c (pthread_mutex_init): Conditionally create Win32 mutex
- from John Bossom's implementation.
(pthread_mutex_destroy): Conditionally close Win32 mutex
- from John Bossom's implementation.
(pthread_mutexattr_init): Replaced by John Bossom's version.
(pthread_mutexattr_destroy): Ditto.
(pthread_mutexattr_getpshared): New function from John Bossom's
implementation.
(pthread_mutexattr_setpshared): New function from John Bossom's
implementation.
Tue Jan 19 18:27:42 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* pthread.h (pthreadCancelableTimedWait): New prototype.
(pthreadCancelableWait): Remove second argument.
* misc.c (CancelableWait): New static function is
pthreadCancelableWait() renamed.
(pthreadCancelableWait): Now just calls CancelableWait() with
INFINITE timeout.
(pthreadCancelableTimedWait): Just calls CancelableWait()
with passed in timeout.
Tue Jan 19 18:27:42 1999 Scott Lightner <scott at curriculum.com>
* private.c (ptw32_sem_timedwait): 'abstime' arg really is
absolute time. Calculate relative time to wait from current
time before passing timeout to new routine
pthreadCancelableTimedWait().
Tue Jan 19 10:27:39 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (pthread_mutexattr_setforcecs_np): New prototype.
* mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs'
attributes to 0.
(pthread_mutexattr_setforcecs_np): New function (not portable).
* pthread.h (pthread_mutex_t):
Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER.
The pthread_mutex_*() routines will try to optimise performance
by choosing either mutexes or critical sections as the basis
for pthread mutexes for each indevidual mutex.
(pthread_mutexattr_t_): Add 'forcecs' element.
Some applications may choose to force use of critical sections
if they know that:-
the mutex is PROCESS_PRIVATE and,
either the OS supports TryEnterCriticalSection() or
pthread_mutex_trylock() will never be called on the mutex.
This attribute will be setable via a non-portable routine.
Note: We don't yet support PROCESS_SHARED mutexes, so the
implementation as it stands will default to Win32 mutexes only if
the OS doesn't support TryEnterCriticalSection. On Win9x, and early
versions of NT 'forcecs' will need to be set in order to get
critical section based mutexes.
Sun Jan 17 12:01:26 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit'
value to '1' and existing 'valid' value to '1'.
* global.c (ptw32_mutex_test_init_lock): Add.
* implement.h (ptw32_mutex_test_init_lock.): Add extern.
* private.c (ptw32_processInitialize): Init critical section for
global lock used by _mutex_check_need_init().
(ptw32_processTerminate): Ditto (:s/Init/Destroy/).
* dll.c (dllMain): Move call to FreeLibrary() so that it is only
called once when the process detaches.
* mutex.c (_mutex_check_need_init): New static function to test
and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised
access to the internal state of the uninitialised static mutex.
Called from pthread_mutex_trylock() and pthread_mutex_lock() which
do a quick unguarded test to check if _mutex_check_need_init()
needs to be called. This is safe as the test is conservative
and is repeated inside the guarded section of
_mutex_check_need_init(). Thus in all calls except the first
calls to lock static mutexes, the additional overhead to lock any
mutex is a single memory fetch and test for zero.
* pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes
initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised
until the first attempt to lock it. Using the 'valid'
flag (which flags the mutex as destroyed or not) to record this
information would be messy. It is possible for a statically
initialised mutex such as this to be destroyed before ever being
used.
* mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init()
to test/init PTHREAD_MUTEX_INITIALIZER mutexes.
(pthread_mutex_lock): Ditto.
(pthread_mutex_unlock): Add check to ensure we don't try to unlock
an unitialised static mutex.
(pthread_mutex_destroy): Add check to ensure we don't try to delete
a critical section that we never created. Allows us to destroy
a static mutex that has never been locked (and hence initialised).
(pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex.
Sun Jan 17 12:01:26 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_sem_timedwait): Move from semaphore.c.
* semaphore.c : Remove redundant #includes.
(ptw32_sem_timedwait): Move to private.c.
(sem_wait): Add missing abstime arg to pthreadCancelableWait() call.
Fri Jan 15 23:38:05 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (cond_timedwait): Remove comment.
Fri Jan 15 15:41:28 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* pthread.h: Add new 'abstime' arg to pthreadCancelableWait()
prototype.
* condvar.c (cond_timedwait): New generalised function called by
both pthread_cond_wait() and pthread_cond_timedwait(). This is
essentially pthread_cond_wait() renamed and modified to add the
'abstime' arg and call the new ptw32_sem_timedwait() instead of
sem_wait().
(pthread_cond_wait): Now just calls the internal static
function cond_timedwait() with an INFINITE wait.
(pthread_cond_timedwait): Now implemented. Calls the internal
static function cond_timedwait().
* implement.h (ptw32_sem_timedwait): New internal function
prototype.
* misc.c (pthreadCancelableWait): Added new 'abstime' argument
to allow shorter than INFINITE wait.
* semaphore.c (ptw32_sem_timedwait): New function for internal
use. This is essentially sem_wait() modified to add the
'abstime' arg and call the modified (see above)
pthreadCancelableWait().
Thu Jan 14 14:27:13 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c: Correct _cplusplus to __cplusplus wherever used.
* Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS.
The derived Makefile will compile all units of the package as C++
so that those which include try/catch exception handling should work
properly. The package should compile ok if CC=gcc, however, exception
handling will not be included and thus thread cancellation, for
example, will not work.
* cleanup.c (ptw32_pop_cleanup): Add #warning to compile this
file as C++ if using a cygwin32 environment. Perhaps the whole package
should be compiled using g++ under cygwin.
* private.c (ptw32_threadStart): Change #error directive
into #warning and bracket for __CYGWIN__ and derivative compilers.
Wed Jan 13 09:34:52 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* build.bat: Delete old binaries before compiling/linking.
Tue Jan 12 09:58:38 1999 Tor Lillqvist <tml at iki.fi>
* dll.c: The Microsoft compiler pragmas probably are more
appropriately protected by _MSC_VER than by _WIN32.
* pthread.h: Define ETIMEDOUT. This should be returned by
pthread_cond_timedwait which is not implemented yet as of
snapshot-1999-01-04-1305. It was implemented in the older version.
The Microsoft compiler pragmas probably are more appropriately
protected by _MSC_VER than by _WIN32.
* pthread.def: pthread_mutex_destroy was missing from the def file
* condvar.c (pthread_cond_broadcast): Ensure we only wait on threads
if there were any waiting on the condition.
I think pthread_cond_broadcast should do the WaitForSingleObject
only if cv->waiters > 0? Otherwise it seems to hang, at least in the
testg thread program from glib.
Tue Jan 12 09:58:38 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (pthread_cond_timedwait): Fix function description
comments.
* semaphore.c (sem_post): Correct typo in comment.
Mon Jan 11 20:33:19 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h: Re-arrange conditional compile of pthread_cleanup-*
macros.
* cleanup.c (ptw32_push_cleanup): Provide conditional
compile of cleanup->prev.
1999-01-11 Tor Lillqvist <tml at iki.fi>
* condvar.c (pthread_cond_init): Invert logic when testing the
return value from calloc().
Sat Jan 9 14:32:08 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Compile-time switch for CYGWIN derived environments
to use CreateThread instead of _beginthreadex. Ditto for ExitThread.
Patch provided by Anders Norlander <anorland at hem2.passagen.se>.
Tue Jan 5 16:33:04 1999 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except
block. Move trailing "}" out of #ifdef _WIN32 block left there by
(rpj's) mistake.
* private.c: Remove #include <errno.h> which is included by pthread.h.
1998-12-11 Ben Elliston <bje at toilet.to.cygnus.com>
* README: Update info about subscribing to the mailing list.
Mon Jan 4 11:23:40 1999 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* all: No code changes, just cleanup.
- remove #if 0 /* Pre Bossom */ enclosed code.
- Remove some redundant #includes.
* pthread.h: Update implemented/unimplemented routines list.
* Tag the bossom merge branch getting ready to merge back to main
trunk.
Tue Dec 29 13:11:16 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Move the following struct definitions to pthread.h:
pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,
pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,
pthread_condattr_t_, pthread_once_t_.
* pthread.h: Add "_" prefix to pthread_push_cleanup and
pthread_pop_cleanup internal routines, and associated struct and
typedefs.
* buildlib.bat: Add compile command for semaphore.c
* pthread.def: Comment out pthread_atfork routine name.
Now unimplemented.
* tsd.c (pthread_setspecific): Rename tkAssocCreate to
ptw32_tkAssocCreate.
(pthread_key_delete): Rename tkAssocDestroy to
ptw32_tkAssocDestroy.
* sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy
* sched.c (is_attr): attr is now **attr (was *attr), so add extra
NULL pointer test.
(pthread_attr_setschedparam): Increase redirection for attr which is
now a **.
(pthread_attr_getschedparam): Ditto.
(pthread_setschedparam): Change thread validation and rename "thread"
Win32 thread Handle element name to match John Bossom's version.
(pthread_getschedparam): Ditto.
* private.c (ptw32_threadDestroy): Rename call to
callUserDestroyRoutines() as ptw32_callUserDestroyRoutines()
* misc.c: Add #include "implement.h".
* dll.c: Remove defined(KLUDGE) wrapped code.
* fork.c: Remove redefinition of ENOMEM.
Remove pthread_atfork() and fork() with #if 0/#endif.
* create.c (pthread_create): Rename threadStart and threadDestroy calls
to ptw32_threadStart and ptw32_threadDestroy.
* implement.h: Rename "detachedstate" to "detachstate".
* attr.c: Rename "detachedstate" to "detachstate".
Mon Dec 28 09:54:39 1998 John Bossom
* semaphore.c: Initial version.
* semaphore.h: Initial version.
Mon Dec 28 09:54:39 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
Mon Dec 28 09:54:39 1998 John Bossom, Ben Elliston
* attr.c (pthread_attr_setstacksize): Merge with John's version.
(pthread_attr_getstacksize): Merge with John's version.
(pthread_attr_setstackaddr): Merge with John's version.
(pthread_attr_getstackaddr): Merge with John's version.
(pthread_attr_init): Merge with John's version.
(pthread_attr_destroy): Merge with John's version.
(pthread_attr_getdetachstate): Merge with John's version.
(pthread_attr_setdetachstate): Merge with John's version.
(is_attr): attr is now **attr (was *attr), so add extra NULL pointer
test.
Mon Dec 28 09:54:39 1998 Ross Johnson
* implement.h (pthread_attr_t_): Add and rename elements in JEB's
version to correspond to original, so that it can be used with
original attr routines.
* pthread.h: Add #endif at end which was truncated in merging.
Sun Dec 20 14:51:58 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard
but provides a hook that can be used to implement cancellation points in
applications that use this library.
* pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses
try/catch to emulate John Bossom's WIN32 __try/__finally behaviour.
In the WIN32 version __finally block, add a test for AbnormalTermination otherwise
cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation
should cause the cleanup to run irrespective of the execute arg.
* condvar.c (pthread_condattr_init): Replaced by John Bossom's version.
(pthread_condattr_destroy): Replaced by John Bossom's version.
(pthread_condattr_getpshared): Replaced by John Bossom's version.
(pthread_condattr_setpshared): Replaced by John Bossom's version.
(pthread_cond_init): Replaced by John Bossom's version.
Fix comment (refered to mutex rather than condition variable).
(pthread_cond_destroy): Replaced by John Bossom's version.
(pthread_cond_wait): Replaced by John Bossom's version.
(pthread_cond_timedwait): Replaced by John Bossom's version.
(pthread_cond_signal): Replaced by John Bossom's version.
(pthread_cond_broadcast): Replaced by John Bossom's version.
Thu Dec 17 19:10:46 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* tsd.c (pthread_key_create): Replaced by John Bossom's version.
(pthread_key_delete): Replaced by John Bossom's version.
(pthread_setspecific): Replaced by John Bossom's version.
(pthread_getspecific): Replaced by John Bossom's version.
Mon Dec 7 09:44:40 1998 John Bossom
* cancel.c (pthread_setcancelstate): Replaced.
(pthread_setcanceltype): Replaced.
(pthread_testcancel): Replaced.
(pthread_cancel): Replaced.
* exit.c (pthread_exit): Replaced.
* misc.c (pthread_self): Replaced.
(pthread_equal): Replaced.
* sync.c (pthread_detach): Replaced.
(pthread_join): Replaced.
* create.c (pthread_create): Replaced.
* private.c (ptw32_processInitialize): New.
(ptw32_processTerminate): New.
(ptw32_threadStart): New.
(ptw32_threadDestroy): New.
(ptw32_cleanupStack): New.
(ptw32_tkAssocCreate): New.
(ptw32_tkAssocDestroy): New.
(ptw32_callUserDestroyRoutines): New.
* implement.h: Added non-API structures and declarations.
* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress
to resolve compile warning from MSVC.
* dll.c (DLLmain): Replaced.
* dll.c (PthreadsEntryPoint):
Re-applied Anders Norlander's patch:-
Initialize ptw32_try_enter_critical_section at startup
and release kernel32 handle when DLL is being unloaded.
Sun Dec 6 21:54:35 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* buildlib.bat: Fix args to CL when building the .DLL
* cleanup.c (ptw32_destructor_run_all): Fix TSD key management.
This is a tidy-up before TSD and Thread management is completely
replaced by John Bossom's code.
* tsd.c (pthread_key_create): Fix TSD key management.
* global.c (ptw32_key_virgin_next): Initialise.
* build.bat: New DOS script to compile and link a pthreads app
using Microsoft's CL compiler linker.
* buildlib.bat: New DOS script to compile all the object files
and create pthread.lib and pthread.dll using Microsoft's CL
compiler linker.
1998-12-05 Anders Norlander <anorland at hem2.passagen.se>
* implement.h (ptw32_try_enter_critical_section): New extern
* dll.c (ptw32_try_enter_critical_section): New pointer to
TryEnterCriticalSection if it exists; otherwise NULL.
* dll.c (PthreadsEntryPoint):
Initialize ptw32_try_enter_critical_section at startup
and release kernel32 handle when DLL is being unloaded.
* mutex.c (pthread_mutex_trylock): Replaced check for NT with
a check if ptw32_try_enter_critical_section is valid
pointer to a function. Call ptw32_try_enter_critical_section
instead of TryEnterCriticalSection to avoid errors on Win95.
Thu Dec 3 13:32:00 1998 Ross Johnson <rpj at ise.canberra.edu.au>
* README: Correct cygwin32 compatibility statement.
Sun Nov 15 21:24:06 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.
Fixup CVS merge conflicts.
1998-10-30 Ben Elliston <bje at cygnus.com>
* condvar.c (cond_wait): Fix semantic error. Test for equality
instead of making an assignment.
Fri Oct 30 15:15:50 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c (ptw32_handler_push): Fixed bug appending new
handler to list reported by Peter Slacik
<Peter.Slacik at leibinger.freinet.de>.
(new_thread): Rename poorly named local variable to
"new_handler".
Sat Oct 24 18:34:59 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* global.c: Add TSD key management array and index declarations.
* implement.h: Ditto for externs.
Fri Oct 23 00:08:09 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h (PTW32_TSD_KEY_REUSE): Add enum.
* private.c (ptw32_delete_thread): Add call to
ptw32_destructor_run_all() to clean up the threads keys.
* cleanup.c (ptw32_destructor_run_all): Check for no more dirty
keys to run destructors on. Assume that the destructor call always
succeeds and set the key value to NULL.
Thu Oct 22 21:44:44 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* tsd.c (pthread_setspecific): Add key management code.
(pthread_key_create): Ditto.
(pthread_key_delete): Ditto.
* implement.h (struct ptw32_tsd_key): Add status member.
* tsd.c: Add description of pthread_key_delete() from the
standard as a comment.
Fri Oct 16 17:38:47 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c (ptw32_destructor_run_all): Fix and improve
stepping through the key table.
Thu Oct 15 14:05:01 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* private.c (ptw32_new_thread): Remove init of destructorstack.
No longer an element of pthread_t.
* tsd.c (pthread_setspecific): Fix type declaration and cast.
(pthread_getspecific): Ditto.
(pthread_getspecific): Change error return value to NULL if key
is not in use.
Thu Oct 15 11:53:21 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* global.c (ptw32_tsd_key_table): Fix declaration.
* implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern.
(ptw32_tsd_mutex): Ditto.
* create.c (ptw32_start_call): Fix "keys" array declaration.
Add comment.
* tsd.c (pthread_setspecific): Fix type declaration and cast.
(pthread_getspecific): Ditto.
* cleanup.c (ptw32_destructor_run_all): Declare missing loop
counter.
Wed Oct 14 21:09:24 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_new_thread): Increment ptw32_threads_count.
(ptw32_delete_thread): Decrement ptw32_threads_count.
Remove some comments.
* exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that
should have been pthread_mutex_unlock() calls.
(ptw32_vacuum): Remove call to ptw32_destructor_pop_all().
* create.c (pthread_create): Fix two pthread_mutex_lock() calls that
should have been pthread_mutex_unlock() calls.
* global.c (ptw32_tsd_mutex): Add mutex for TSD operations.
* tsd.c (pthread_key_create): Add critical section.
(pthread_setspecific): Ditto.
(pthread_getspecific): Ditto.
(pthread_key_delete): Ditto.
* sync.c (pthread_join): Fix two pthread_mutex_lock() calls that
should have been pthread_mutex_unlock() calls.
Mon Oct 12 00:00:44 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h (ptw32_tsd_key_table): New.
* create.c (ptw32_start_call): Initialise per-thread TSD keys
to NULL.
* misc.c (pthread_once): Correct typo in comment.
* implement.h (ptw32_destructor_push): Remove.
(ptw32_destructor_pop): Remove.
(ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all.
(PTW32_TSD_KEY_DELETED): Add enum.
(PTW32_TSD_KEY_INUSE): Add enum.
* cleanup.c (ptw32_destructor_push): Remove.
(ptw32_destructor_pop): Remove.
(ptw32_destructor_run_all): Totally revamped TSD.
* dll.c (ptw32_TSD_keys_TlsIndex): Initialise.
* tsd.c (pthread_setspecific): Totally revamped TSD.
(pthread_getspecific): Ditto.
(pthread_create): Ditto.
(pthread_delete): Ditto.
Sun Oct 11 22:44:55 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* global.c (ptw32_tsd_key_table): Add new global.
* implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key):
Add.
(struct _pthread): Remove destructorstack.
* cleanup.c (ptw32_destructor_run_all): Rename from
ptw32_destructor_pop_all. The key destructor stack was made
global rather than per-thread. No longer removes destructor nodes
from the stack. Comments updated.
1998-10-06 Ben Elliston <bje at cygnus.com>
* condvar.c (cond_wait): Use POSIX, not Win32 mutex calls.
(pthread_cond_broadcast): Likewise.
(pthread_cond_signal): Likewise.
1998-10-05 Ben Elliston <bje at cygnus.com>
* pthread.def: Update. Some functions aren't available yet, others
are macros in <pthread.h>.
* tests/join.c: Remove; useless.
Mon Oct 5 14:25:08 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* pthread.def: New file for building the DLL.
1998-10-05 Ben Elliston <bje at cygnus.com>
* misc.c (pthread_equal): Correct inverted logic bug.
(pthread_once): Use the POSIX mutex primitives, not Win32. Remove
irrelevant FIXME comment.
* global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h.
* pthread.h (PTHREAD_MUTEX_INITIALIZER): Define.
(pthread_mutex_t): Reimplement as a struct containing a valid
flag. If the flag is ever down upon entry to a mutex operation,
we call pthread_mutex_create() to initialise the object. This
fixes the problem of how to handle statically initialised objects
that can't call InitializeCriticalSection() due to their context.
(PTHREAD_ONCE_INIT): Define.
* mutex.c (pthread_mutex_init): Set valid flag.
(pthread_mutex_destroy): Clear valid flag.
(pthread_mutex_lock): Check and handle the valid flag.
(pthread_mutex_unlock): Likewise.
(pthread_mutex_trylock): Likewise.
* tests/mutex3.c: New file; test for the static initialisation
macro. Passes.
* tests/create1.c: New file; test pthread_create(). Passes.
* tests/equal.c: Poor test; remove.
* tests/equal1.c New file; test pthread_equal(). Passes.
* tests/once1.c: New file; test for pthread_once(). Passes.
* tests/self.c: Remove; rename to self1.c.
* tests/self1.c: This is the old self.c.
* tests/self2.c: New file. Test pthread_self() with a single
thread. Passes.
* tests/self3.c: New file. Test pthread_self() with a couple of
threads to ensure their thread IDs differ. Passes.
1998-10-04 Ben Elliston <bje at cygnus.com>
* tests/mutex2.c: Test pthread_mutex_trylock(). Passes.
* tests/mutex1.c: New basic test for mutex functions (it passes).
(main): Eliminate warning.
* configure.in: Test for __stdcall, not _stdcall. Typo.
* configure: Regenerate.
* attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32
does know about ENOSYS after all.
(pthread_attr_setstackaddr): Likewise.
1998-10-03 Ben Elliston <bje at cygnus.com>
* configure.in: Test for the `_stdcall' keyword. Define `STDCALL'
to `_stdcall' if we have it, null otherwise.
* configure: Regenerate.
* acconfig.h (STDCALL): New define.
* config.h.in: Regenerate.
* create.c (ptw32_start_call): Add STDCALL prefix.
* mutex.c (pthread_mutex_init): Correct function signature.
* attr.c (pthread_attr_init): Only zero out the `sigmask' member
if we have the sigset_t type.
* pthread.h: No need to include <unistd.h>. It doesn't even exist
on Win32! Again, an artifact of cross-compilation.
(pthread_sigmask): Only provide if we have the sigset_t type.
* process.h: Remove. This was a stand-in before we started doing
native compilation under Win32.
* pthread.h (pthread_mutex_init): Make `attr' argument const.
1998-10-02 Ben Elliston <bje at cygnus.com>
* COPYING: Remove.
* COPYING.LIB: Add. This library is under the LGPL.
1998-09-13 Ben Elliston <bje at cygnus.com>
* configure.in: Test for required system features.
* configure: Generate.
* acconfig.h: New file.
* config.h.in: Generate.
* Makefile.in: Renamed from Makefile.
* COPYING: Import from a recent GNU package.
* config.guess: Likewise.
* config.sub: Likewise.
* install-sh: Likewise.
* config.h: Remove.
* Makefile: Likewise.
1998-09-12 Ben Elliston <bje at cygnus.com>
* windows.h: No longer needed; remove.
* windows.c: Likewise.
Sat Sep 12 20:09:24 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* windows.h: Remove error number definitions. These are in <errno.h>
* tsd.c: Add comment explaining rationale for not building
POSIX TSD on top of Win32 TLS.
1998-09-12 Ben Elliston <bje at cygnus.com>
* {most}.c: Include <errno.h> to get POSIX error values.
* signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is
defined.
* config.h: #undef features, don't #define them. This will be
generated by autoconf very soon.
1998-08-11 Ben Elliston <bje at cygnus.com>
* Makefile (LIB): Define.
(clean): Define target.
(all): Build a library not just the object files.
* pthread.h: Provide a definition for struct timespec if we don't
already have one.
* windows.c (TlsGetValue): Bug fix.
Thu Aug 6 15:19:22 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* misc.c (pthread_once): Fix arg 1 of EnterCriticalSection()
and LeaveCriticalSection() calls to pass address-of lock.
* fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr
in each ptw32_handler_push() call.
* exit.c (ptw32_exit): Fix attr arg in
pthread_attr_getdetachstate() call.
* private.c (ptw32_new_thread): Typecast (HANDLE) NULL.
(ptw32_delete_thread): Ditto.
* implement.h: (PTW32_MAX_THREADS): Add define. This keeps
changing in an attempt to make thread administration data types
opaque and cleanup DLL startup.
* dll.c (PthreadsEntryPoint):
(ptw32_virgins): Remove malloc() and free() calls.
(ptw32_reuse): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* global.c (_POSIX_THREAD_THREADS_MAX): Initialise with
PTW32_MAX_THREADS.
(ptw32_virgins): Ditto.
(ptw32_reuse): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* create.c (pthread_create): Typecast (HANDLE) NULL.
Typecast (unsigned (*)(void *)) start_routine.
* condvar.c (pthread_cond_init): Add address-of operator & to
arg 1 of pthread_mutex_init() call.
(pthread_cond_destroy): Add address-of operator & to
arg 1 of pthread_mutex_destroy() call.
* cleanup.c (ptw32_destructor_pop_all): Add (int) cast to
pthread_getspecific() arg.
(ptw32_destructor_pop): Add (void *) cast to "if" conditional.
(ptw32_destructor_push): Add (void *) cast to
ptw32_handler_push() "key" arg.
(malloc.h): Add include.
* implement.h (ptw32_destructor_pop): Add prototype.
* tsd.c (implement.h): Add include.
* sync.c (pthread_join): Remove target_thread_mutex and it's
initialisation. Rename getdetachedstate to getdetachstate.
Remove unused variable "exitcode".
(pthread_detach): Remove target_thread_mutex and it's
initialisation. Rename getdetachedstate to getdetachstate.
Rename setdetachedstate to setdetachstate.
* signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK.
Cast "set" to (long *) in assignment to passify compiler warning.
Add address-of operator & to thread->attr.sigmask in memcpy() call
and assignment.
(pthread_sigmask): Add address-of operator & to thread->attr.sigmask
in memcpy() call and assignment.
* windows.h (THREAD_PRIORITY_ERROR_RETURN): Add.
(THREAD_PRIORITY_LOWEST): Add.
(THREAD_PRIORITY_HIGHEST): Add.
* sched.c (is_attr): Add function.
(implement.h): Add include.
(pthread_setschedparam): Rename all instances of "sched_policy"
to "sched_priority".
(pthread_getschedparam): Ditto.
Tue Aug 4 16:57:58 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* private.c (ptw32_delete_thread): Fix typo. Add missing ';'.
* global.c (ptw32_virgins): Change types from pointer to
array pointer.
(ptw32_reuse): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* implement.h(ptw32_virgins): Change types from pointer to
array pointer.
(ptw32_reuse): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* private.c (ptw32_delete_thread): Fix "entry" should be "thread".
* misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex.
* global.c: Add comment.
* misc.c (pthread_once): Fix member -> dereferences.
Change ptw32_once_flag to once_control->flag in "if" test.
Tue Aug 4 00:09:30 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h(ptw32_virgins): Add extern.
(ptw32_virgin_next): Ditto.
(ptw32_reuse): Ditto.
(ptw32_reuse_top): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* global.c (ptw32_virgins): Changed from array to pointer.
Storage allocation for the array moved into dll.c.
(ptw32_reuse): Ditto.
(ptw32_win32handle_map): Ditto.
(ptw32_threads_mutex_table): Ditto.
* dll.c (PthreadsEntryPoint): Set up thread admin storage when
DLL is loaded.
* fork.c (pthread_atfork): Fix function pointer arg to all
ptw32_handler_push() calls. Change "arg" arg to NULL in child push.
* exit.c: Add windows.h and process.h includes.
(ptw32_exit): Add local detachstate declaration.
(ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate().
* pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c
(_POSIX_THREAD_ATTR_STACKADDR): Ditto.
* create.c (pthread_create): Fix #if should be #ifdef.
(ptw32_start_call): Remove usused variables.
* process.h: Create.
* windows.h: Move _beginthreadex and _endthreadex into
process.h
Mon Aug 3 21:19:57 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* condvar.c (pthread_cond_init): Add NULL attr to
pthread_mutex_init() call - default attributes will be used.
(cond_wait): Fix typo.
(cond_wait): Fix typo - cv was ev.
(pthread_cond_broadcast): Fix two identical typos.
* cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from
PTHREAD_DESTRUCTOR_ITERATIONS.
* pthread.h: Move _POSIX_* values into posix.h
* pthread.h: Fix typo in pthread_mutex_init() prototype.
* attr.c (pthread_attr_init): Fix error in priority member init.
* windows.h (THREAD_PRIORITY_NORMAL): Add.
* pthread.h (sched_param): Add missing ';' to struct definition.
* attr.c (pthread_attr_init): Remove obsolete pthread_attr_t
member initialisation - cancelstate, canceltype, cancel_pending.
(is_attr): Make arg "attr" a const.
* implement.h (PTW32_HANDLER_POP_LIFO): Remove definition.
(PTW32_HANDLER_POP_FIFO): Ditto.
(PTW32_VALID): Add missing newline escape ().
(ptw32_handler_node): Make element "next" a pointer.
1998-08-02 Ben Elliston <bje at cygnus.com>
* windows.h: Remove duplicate TlsSetValue() prototype. Add
TlsGetValue() prototype.
(FALSE): Define.
(TRUE): Likewise.
Add forgotten errno values. Guard against multiple #includes.
* windows.c: New file. Implement stubs for Win32 functions.
* Makefile (SRCS): Remove. Not explicitly needed.
(CFLAGS): Add -Wall for all warnings with GCC.
Sun Aug 2 19:03:42 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* config.h: Create. This is a temporary stand-in for autoconf yet
to be done.
(HAVE_SIGNAL_H): Add.
* pthread.h: Minor rearrangement for temporary config.h.
Fri Jul 31 14:00:29 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* cleanup.c (ptw32_destructor_pop): Implement. Removes
destructors associated with a key without executing them.
(ptw32_destructor_pop_all): Add FIXME comment.
* tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop().
Fri Jul 31 00:05:45 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* tsd.c (pthread_key_create): Update to properly associate
the destructor routine with the key.
(pthread_key_delete): Add FIXME comment.
* exit.c (ptw32_vacuum): Add call to
ptw32_destructor_pop_all().
* implement.h (ptw32_handler_pop_all): Add prototype.
(ptw32_destructor_pop_all): Ditto.
* cleanup.c (ptw32_destructor_push): Implement. This is just a
call to ptw32_handler_push().
(ptw32_destructor_pop_all): Implement. This is significantly
different to ptw32_handler_pop_all().
* Makefile (SRCS): Create. Preliminary.
* windows.h: Create. Contains Win32 definitions for compile
testing. This is just a standin for the real one.
* pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK.
(windows.h): Add include. Required for CRITICAL_SECTION.
(pthread_cond_t): Move enum declaration outside of struct
definition.
(unistd.h): Add include - may be temporary.
* condvar.c (windows.h): Add include.
* implement.h (PTW32_THIS): Remove - no longer required.
(PTW32_STACK): Use pthread_self() instead of PTW32_THIS.
Thu Jul 30 23:12:45 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Remove ptw32_find_entry() prototype.
* private.c: Extend comments.
Remove ptw32_find_entry() - no longer needed.
* create.c (ptw32_start_call): Add call to TlsSetValue() to
store the thread ID.
* dll.c (PthreadsEntryPoint): Implement. This is called
whenever a process loads the DLL. Used to initialise thread
local storage.
* implement.h: Add ptw32_threadID_TlsIndex.
Add ()s around PTW32_VALID expression.
* misc.c (pthread_self): Re-implement using Win32 TLS to store
the threads own ID.
Wed Jul 29 11:39:03 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c: Corrections in comments.
(ptw32_new_thread): Alter "if" flow to be more natural.
* cleanup.c (ptw32_handler_push): Same as below.
* create.c (pthread_create): Same as below.
* private.c (ptw32_new_thread): Rename "new" to "new_thread".
Since when has a C programmer been required to know C++?
Tue Jul 28 14:04:29 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* implement.h: Add PTW32_VALID macro.
* sync.c (pthread_join): Modify to use the new thread
type and ptw32_delete_thread(). Rename "target" to "thread".
Remove extra local variable "target".
(pthread_detach): Ditto.
* signal.c (pthread_sigmask): Move init of "us" out of inner block.
Fix instance of "this" should have been "us". Rename "us" to "thread".
* sched.c (pthread_setschedparam): Modify to use the new thread
type.
(pthread_getschedparam): Ditto.
* private.c (ptw32_find_thread): Fix return type and arg.
* implement.h: Remove PTW32_YES and PTW32_NO.
(ptw32_new_thread): Add prototype.
(ptw32_find_thread): Ditto.
(ptw32_delete_thread): Ditto.
(ptw32_new_thread_entry): Remove prototype.
(ptw32_find_thread_entry): Ditto.
(ptw32_delete_thread_entry): Ditto.
( PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE):
Add.
* create.c (pthread_create): Minor rename "us" to "new" (I need
these cues but it doesn't stop me coming out with some major bugs
at times).
Load start_routine and arg into the thread so the wrapper can
call it.
* exit.c (pthread_exit): Fix pthread_this should be pthread_self.
* cancel.c (pthread_setcancelstate): Change
ptw32_threads_thread_t * to pthread_t and init with
pthread_this().
(pthread_setcanceltype): Ditto.
* exit.c (ptw32_exit): Add new pthread_t arg.
Rename ptw32_delete_thread_entry to ptw32_delete_thread.
Rename "us" to "thread".
(pthread_exit): Call ptw32_exit with added thread arg.
* create.c (ptw32_start_call): Insert missing ")".
Add "us" arg to ptw32_exit() call.
(pthread_create): Modify to use new thread allocation scheme.
* private.c: Added detailed explanation of the new thread
allocation scheme.
(ptw32_new_thread): Totally rewritten to use
new thread allocation scheme.
(ptw32_delete_thread): Ditto.
(ptw32_find_thread): Obsolete.
Mon Jul 27 17:46:37 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* create.c (pthread_create): Start of rewrite. Not completed yet.
* private.c (ptw32_new_thread_entry): Start of rewrite. Not
complete.
* implement.h (ptw32_threads_thread): Rename, remove thread
member, add win32handle and ptstatus members.
(ptw32_t): Add.
* pthread.h: pthread_t is no longer mapped directly to a Win32
HANDLE type. This is so we can let the Win32 thread terminate and
reuse the HANDLE while pthreads holds it's own thread ID until
the last waiting join exits.
Mon Jul 27 00:20:37 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_delete_thread_entry): Destroy the thread
entry attribute object before deleting the thread entry itself.
* attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.
(pthread_attr_setdetachstate): Rename "detached" to "detachedstate".
(pthread_attr_getdetachstate): Ditto.
* exit.c (ptw32_exit): Fix incorrect check for detachedstate.
* implement.h (ptw32_call_t): Remove env member.
Sun Jul 26 13:06:12 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h (ptw32_new_thread_entry): Fix prototype.
(ptw32_find_thread_entry): Ditto.
(ptw32_delete_thread_entry): Ditto.
(ptw32_exit): Add prototype.
* exit.c (ptw32_exit): New function. Called from pthread_exit()
and ptw32_start_call() to exit the thread. It allows an extra
argument which is the return code passed to _endthreadex().
(ptw32_exit): Move thread entry delete call from ptw32_vacuum()
into here. Add more explanation of thread entry deletion.
(ptw32_exit): Clarify comment.
* create.c (ptw32_start_call): Change pthread_exit() call to
ptw32_exit() call.
* exit.c (ptw32_vacuum): Add thread entry deletion code
moved from ptw32_start_call(). See next item.
(pthread_exit): Remove longjmp(). Add mutex lock around thread table
manipulation code. This routine now calls _enthreadex().
* create.c (ptw32_start_call): Remove setjmp() call and move
cleanup code out. Call pthread_exit(NULL) to terminate the thread.
1998-07-26 Ben Elliston <bje at cygnus.com>
* tsd.c (pthread_getspecific): Update comments.
* mutex.c (pthread_mutexattr_setpshared): Not supported; remove.
(pthread_mutexattr_getpshared): Likewise.
* pthread.h (pthread_mutexattr_setpshared): Remove prototype.
(pthread_mutexattr_getpshared): Likewise.
Sun Jul 26 00:09:59 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c: Rename all instances of ptw32_count_mutex to
ptw32_table_mutex.
* implement.h: Rename ptw32_count_mutex to
ptw32_table_mutex.
* global.c: Rename ptw32_count_mutex to
ptw32_table_mutex.
* create.c (pthread_create): Add critical sections.
(ptw32_start_call): Rename ptw32_count_mutex to
ptw32_table_mutex.
* cancel.c (pthread_setcancelstate): Fix indirection bug and rename
"this" to "us".
* signal.c (pthread_sigmask): Rename "this" to "us" and fix some
minor syntax errors. Declare "us" and initialise it.
* sync.c (pthread_detach): Rename "this" to "target".
* pthread.h: Converting PTHREAD_* defines to alias the (const int)
values in global.c.
* global.c: Started converting PTHREAD_* defines to (const int) as
a part of making the eventual pthreads DLL binary compatible
through version changes.
* condvar.c (cond_wait): Add cancelation point. This applies the
point to both pthread_cond_wait() and pthread_cond_timedwait().
* exit.c (pthread_exit): Rename "this" to "us".
* implement.h: Add comment.
* sync.c (pthread_join): I've satisfied myself that pthread_detach()
does set the detached attribute in the thread entry attributes
to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test
that attribute instead of a separate flag.
* create.c (pthread_create): Rename "this" to "us".
(pthread_create): cancelstate and canceltype are not attributes
so the copy to thread entry attribute storage was removed.
Only the thread itself can change it's cancelstate or canceltype,
ie. the thread must exist already.
* private.c (ptw32_delete_thread_entry): Mutex locks removed.
Mutexes must be applied at the caller level.
(ptw32_new_thread_entry): Ditto.
(ptw32_new_thread_entry): Init cancelstate, canceltype, and
cancel_pending to default values.
(ptw32_new_thread_entry): Rename "this" to "new".
(ptw32_find_thread_entry): Rename "this" to "entry".
(ptw32_delete_thread_entry): Rename "thread_entry" to "entry".
* create.c (ptw32_start_call): Mutexes changed to
ptw32_count_mutex. All access to the threads table entries is
under the one mutex. Otherwise chaos reigns.
Sat Jul 25 23:16:51 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h (ptw32_threads_thread): Move cancelstate and
canceltype members out of pthread_attr_t into here.
* fork.c (fork): Add comment.
1998-07-25 Ben Elliston <bje at cygnus.com>
* fork.c (fork): Autoconfiscate.
Sat Jul 25 00:00:13 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* create.c (ptw32_start_call): Set thread priority. Ensure our
thread entry is removed from the thread table but only if
pthread_detach() was called and there are no waiting joins.
(pthread_create): Set detach flag in thread entry if the
thread is created PTHREAD_CREATE_DETACHED.
* pthread.h (pthread_attr_t): Rename member "detachedstate".
* attr.c (pthread_attr_init): Rename attr members.
* exit.c (pthread_exit): Fix indirection mistake.
* implement.h (PTW32_THREADS_TABLE_INDEX): Add.
* exit.c (ptw32_vacuum): Fix incorrect args to
ptw32_handler_pop_all() calls.
Make thread entry removal conditional.
* sync.c (pthread_join): Add multiple join and async detach handling.
* implement.h (PTW32_THREADS_TABLE_INDEX): Add.
* global.c (ptw32_threads_mutex_table): Add.
* implement.h (ptw32_once_flag): Remove.
(ptw32_once_lock): Ditto.
(ptw32_threads_mutex_table): Add.
* global.c (ptw32_once_flag): Remove.
(ptw32_once_lock): Ditto.
* sync.c (pthread_join): Fix tests involving new return value
from ptw32_find_thread_entry().
(pthread_detach): Ditto.
* private.c (ptw32_find_thread_entry): Failure return code
changed from -1 to NULL.
Fri Jul 24 23:09:33 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* create.c (pthread_create): Change . to -> in sigmask memcpy() args.
* pthread.h: (pthread_cancel): Add function prototype.
(pthread_testcancel): Ditto.
1998-07-24 Ben Elliston <bje at cygnus.com>
* pthread.h (pthread_condattr_t): Rename dummy structure member.
(pthread_mutexattr_t): Likewise.
Fri Jul 24 21:13:55 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* cancel.c (pthread_cancel): Implement.
(pthread_testcancel): Implement.
* exit.c (pthread_exit): Add comment explaining the longjmp().
* implement.h (ptw32_threads_thread_t): New member cancelthread.
(PTW32_YES): Define.
(PTW32_NO): Define.
(RND_SIZEOF): Remove.
* create.c (pthread_create): Rename cancelability to cancelstate.
* pthread.h (pthread_attr_t): Rename cancelability to cancelstate.
(PTHREAD_CANCELED): Define.
1998-07-24 Ben Elliston <bje at cygnus.com>
* pthread.h (SIG_BLOCK): Define if not already defined.
(SIG_UNBLOCK): Likewise.
(SIG_SETMASK): Likewise.
(pthread_attr_t): Add signal mask member.
(pthread_sigmask): Add function prototype.
* signal.c (pthread_sigmask): Implement.
* create.c: #include <string.h> to get a prototype for memcpy().
(pthread_create): New threads inherit their creator's signal
mask. Copy the signal mask to the new thread structure if we know
about signals.
Fri Jul 24 16:33:17 1998 Ross Johnson <rpj at swan.canberra.edu.au>
* fork.c (pthread_atfork): Add all the necessary push calls.
Local implementation semantics:
If we get an ENOMEM at any time then ALL handlers
(including those from previous pthread_atfork() calls) will be
popped off each of the three atfork stacks before we return.
(fork): Add all the necessary pop calls. Add the thread cancellation
and join calls to the child fork.
Add #includes.
* implement.h: (ptw32_handler_push): Fix return type and stack arg
type in prototype.
(ptw32_handler_pop): Fix stack arg type in prototype.
(ptw32_handler_pop_all): Fix stack arg type in prototype.
* cleanup.c (ptw32_handler_push): Change return type to int and
return ENOMEM if malloc() fails.
* sync.c (pthread_detach): Use equality test, not assignment.
* create.c (ptw32_start_call): Add call to Win32 CloseHandle()
if thread is detached.
1998-07-24 Ben Elliston <bje at cygnus.com>
* sync.c (pthread_detach): Close the Win32 thread handle to
emulate detached (or daemon) threads.
Fri Jul 24 03:00:25 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c (pthread_join): Save valueptr arg in joinvalueptr for
pthread_exit() to use.
* private.c (ptw32_new_thread_entry): Initialise joinvalueptr to
NULL.
* create.c (ptw32_start_call): Rewrite to facilitate joins.
pthread_exit() will do a longjmp() back to here. Does appropriate
cleanup and exit/return from the thread.
(pthread_create): _beginthreadex() now passes a pointer to our
thread table entry instead of just the call member of that entry.
* implement.h (ptw32_threads_thread): New member
void ** joinvalueptr.
(ptw32_call_t): New member jmpbuf env.
* exit.c (pthread_exit): Major rewrite to handle joins and handing
value pointer to joining thread. Uses longjmp() back to
ptw32_start_call().
* create.c (pthread_create): Ensure values of new attribute members
are copied to the thread attribute object.
* attr.c (pthread_attr_destroy): Fix merge conflicts.
(pthread_attr_getdetachstate): Fix merge conflicts.
(pthread_attr_setdetachstate): Fix merge conflicts.
* pthread.h: Fix merge conflicts.
* sync.c (pthread_join): Fix merge conflicts.
Fri Jul 24 00:21:21 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* sync.c (pthread_join): Add check for valid and joinable
thread.
(pthread_detach): Implement. After checking for a valid and joinable
thread, it's still a no-op.
* private.c (ptw32_find_thread_entry): Bug prevented returning
an error value in some cases.
* attr.c (pthread_attr_setdetachedstate): Implement.
(pthread_attr_getdetachedstate): Implement.
* implement.h: Move more hidden definitions into here from
pthread.h.
1998-07-24 Ben Elliston <bje at cygnus.com>
* pthread.h (PTHREAD_CREATE_JOINABLE): Define.
(PTHREAD_CREATE_DETACHED): Likewise.
(pthread_attr_t): Add new structure member `detached'.
(pthread_attr_getdetachstate): Add function prototype.
(pthread_attr_setdetachstate): Likewise.
* sync.c (pthread_join): Return if the target thread is detached.
* attr.c (pthread_attr_init): Initialise cancelability and
canceltype structure members.
(pthread_attr_getdetachstate): Implement.
(pthread_attr_setdetachstate): Likewise.
* implement.h (PTW32_CANCEL_DEFAULTS): Remove. Bit fields
proved to be too cumbersome. Set the defaults in attr.c using the
public PTHREAD_CANCEL_* constants.
* cancel.c: New file.
* pthread.h (sched_param): Define this type.
(pthread_attr_getschedparam): Add function prototype.
(pthread_attr_setschedparam): Likewise.
(pthread_setcancelstate): Likewise.
(pthread_setcanceltype): Likewise.
(sched_get_priority_min): Likewise.
(sched_get_priority_max): Likewise.
(pthread_mutexattr_setprotocol): Remove; not supported.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
(pthread_attr_t): Add canceltype member. Update comments.
(SCHED_OTHER): Define this scheduling policy constant.
(SCHED_FIFO): Likewise.
(SCHED_RR): Likewise.
(SCHED_MIN): Define the lowest possible value for this constant.
(SCHED_MAX): Likewise, the maximum possible value.
(PTHREAD_CANCEL_ASYNCHRONOUS): Redefine.
(PTHREAD_CANCEL_DEFERRED): Likewise.
* sched.c: New file.
(pthread_setschedparam): Implement.
(pthread_getschedparam): Implement.
(sched_get_priority_max): Validate policy argument.
(sched_get_priority_min): Likewise.
* mutex.c (pthread_mutexattr_setprotocol): Remove; not supported.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
Fri Jul 24 00:21:21 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* create.c (pthread_create): Arg to ptw32_new_thread_entry()
changed. See next entry. Move mutex locks out. Changes made yesterday
and today allow us to start the new thread running rather than
temporarily suspended.
* private.c (ptw32_new_thread_entry): ptw32_thread_table
was changed back to a table of thread structures rather than pointers.
As such we're trading storage for increaded speed. This routine
was modified to work with the new table. Mutex lock put in around
global data accesses.
(ptw32_find_thread_entry): Ditto
(ptw32_delete_thread_entry): Ditto
Thu Jul 23 23:25:30 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* global.c: New. Global data objects declared here. These moved from
pthread.h.
* pthread.h: Move implementation hidden definitions into
implement.h.
* implement.h: Move implementation hidden definitions from
pthread.h. Add constants to index into the different handler stacks.
* cleanup.c (ptw32_handler_push): Simplify args. Restructure.
(ptw32_handler_pop): Simplify args. Restructure.
(ptw32_handler_pop_all): Simplify args. Restructure.
Wed Jul 22 00:16:22 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge
conflicts.
* private.c (ptw32_find_thread_entry): Changes to return type
to support leaner ptw32_threads_table[] which now only stores
ptw32_thread_thread_t *.
(ptw32_new_thread_entry): Internal changes.
(ptw32_delete_thread_entry): Internal changes to avoid contention.
Calling routines changed accordingly.
* pthread.h: Modified cleanup macros to use new generic push and pop.
Added destructor and atfork stacks to ptw32_threads_thread_t.
* cleanup.c (ptw32_handler_push, ptw32_handler_pop,
ptw32_handler_pop_all): Renamed cleanup push and pop routines
and made generic to handle destructors and atfork handlers as
well.
* create.c (ptw32_start_call): New function is a wrapper for
all new threads. It allows us to do some cleanup when the thread
returns, ie. that is otherwise only done if the thread is cancelled.
* exit.c (ptw32_vacuum): New function contains code from
pthread_exit() that we need in the new ptw32_start_call()
as well.
* implement.h: Various additions and minor changes.
* pthread.h: Various additions and minor changes.
Change cleanup handler macros to use generic handler push and pop
functions.
* attr.c: Minor mods to all functions.
(is_attr): Implemented missing function.
* create.c (pthread_create): More clean up.
* private.c (ptw32_find_thread_entry): Implement.
(ptw32_delete_thread_entry): Implement.
(ptw32_new_thread_entry): Implement.
These functions manipulate the implementations internal thread
table and are part of general code cleanup and modularisation.
They replace ptw32_getthreadindex() which was removed.
* exit.c (pthread_exit): Changed to use the new code above.
* pthread.h: Add cancelability constants. Update comments.
1998-07-22 Ben Elliston <bje at cygnus.com>
* attr.c (pthread_setstacksize): Update test of attr argument.
(pthread_getstacksize): Likewise.
(pthread_setstackaddr): Likewise.
(pthread_getstackaddr): Likewise.
(pthread_attr_init): No need to allocate any storage.
(pthread_attr_destroy): No need to free any storage.
* mutex.c (is_attr): Not likely to be needed; remove.
(remove_attr): Likewise.
(insert_attr): Likewise.
* implement.h (ptw32_mutexattr_t): Moved to a public definition
in pthread.h. There was little gain in hiding these details.
(ptw32_condattr_t): Likewise.
(ptw32_attr_t): Likewise.
* pthread.h (pthread_atfork): Add function prototype.
(pthread_attr_t): Moved here from implement.h.
* fork.c (pthread_atfork): Preliminary implementation.
(ptw32_fork): Likewise.
Wed Jul 22 00:16:22 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* cleanup.c (ptw32_cleanup_push): Implement.
(ptw32_cleanup_pop): Implement.
(ptw32_do_cancellation): Implement.
These are private to the implementation. The real cleanup functions
are macros. See below.
* pthread.h (pthread_cleanup_push): Implement as a macro.
(pthread_cleanup_pop): Implement as a macro.
Because these are macros which start and end a block, the POSIX scoping
requirement is observed. See the comment in the file.
* exit.c (pthread_exit): Refine the code.
* create.c (pthread_create): Code cleanup.
* implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)
up to multiple of DWORD.
Add function prototypes.
* private.c (ptw32_getthreadindex): "*thread" should have been
"thread". Detect empty slot fail condition.
1998-07-20 Ben Elliston <bje at cygnus.com>
* misc.c (pthread_once): Implement. Don't use a per-application
flag and mutex--make `pthread_once_t' contain these elements in
their structure. The earlier version had incorrect semantics.
* pthread.h (ptw32_once_flag): Add new variable. Remove.
(ptw32_once_lock): Add new mutex lock to ensure integrity of
access to ptw32_once_flag. Remove.
(pthread_once): Add function prototype.
(pthread_once_t): Define this type.
Mon Jul 20 02:31:05 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* private.c (ptw32_getthreadindex): Implement.
* pthread.h: Add application static data dependent on
_PTHREADS_BUILD_DLL define. This is needed to avoid allocating
non-sharable static data within the pthread DLL.
* implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t
and PTW32_HASH_INDEX.
* exit.c (pthread_exit): Begin work on cleanup and de-allocate
thread-private storage.
* create.c (pthread_create): Add thread to thread table.
Keep a thread-private copy of the attributes with default values
filled in when necessary. Same for the cleanup stack. Make
pthread_create C run-time library friendly by using _beginthreadex()
instead of CreateThread(). Fix error returns.
Sun Jul 19 16:26:23 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Rename pthreads_thread_count to ptw32_threads_count.
Create ptw32_threads_thread_t struct to keep thread specific data.
* create.c: Rename pthreads_thread_count to ptw32_threads_count.
(pthread_create): Handle errors from CreateThread().
1998-07-19 Ben Elliston <bje at cygnus.com>
* condvar.c (pthread_cond_wait): Generalise. Moved from here ..
(cond_wait): To here.
(pthread_cond_timedwait): Implement; use generalised cond_wait().
* pthread.h (pthread_key_t): Define this type.
(pthread_key_create): Add function prototype.
(pthread_setspecific): Likewise.
(pthread_getspecific): Likwise.
(pthread_key_delete): Likewise.
* tsd.c (pthread_key_create): Implement.
(pthread_setspecific): Likewise.
(pthread_getspecific): Likewise.
(pthread_key_delete): Likewise.
* mutex.c (pthread_mutex_trylock): Return ENOSYS if this function
is called on a Win32 platform which is not Windows NT.
1998-07-18 Ben Elliston <bje at cygnus.com>
* condvar.c (pthread_condattr_init): Do not attempt to malloc any
storage; none is needed now that condattr_t is an empty struct.
(pthread_condattr_destory): Likewise; do not free storage.
(pthread_condattr_setpshared): No longer supported; return ENOSYS.
(pthread_condattr_getpshared): Likewise.
(pthread_cond_init): Implement with help from Douglas Schmidt.
Remember to initialise the cv's internal mutex.
(pthread_cond_wait): Likewise.
(pthread_cond_signal): Likewise.
(pthread_cond_broadcast): Likewise.
(pthread_cond_timedwait): Preliminary implementation, but I need
to see some API documentation for `WaitForMultipleObject'.
(pthread_destory): Implement.
* pthread.h (pthread_cond_init): Add function protoype.
(pthread_cond_broadcast): Likewise.
(pthread_cond_signal): Likewise.
(pthread_cond_timedwait): Likewise.
(pthread_cond_wait): Likewise.
(pthread_cond_destroy): Likewise.
(pthread_cond_t): Define this type. Fix for u_int. Do not assume
that the mutex contained withing the pthread_cond_t structure will
be a critical section. Use our new POSIX type!
* implement.h (ptw32_condattr_t): Remove shared attribute.
1998-07-17 Ben Elliston <bje at cygnus.com>
* pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.
(PTHREAD_PROCESS_SHARED): Likewise. No support for mutexes shared
across processes for now.
(pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better
performance.
* implement.h (ptw32_mutexattr_t): Remove shared attribute.
* mutex.c (pthread_mutexattr_setpshared): This optional function
is no longer supported, since we want to implement POSIX mutex
variables using the much more efficient Win32 critical section
primitives. Critical section objects in Win32 cannot be shared
between processes.
(pthread_mutexattr_getpshared): Likewise.
(pthread_mutexattr_init): No need to malloc any storage; the
attributes structure is now empty.
(pthread_mutexattr_destroy): This is now a nop.
(pthread_mutex_init): Use InitializeCriticalSection().
(pthread_mutex_destroy): Use DeleteCriticalSection().
(pthread_mutex_lock): Use EnterCriticalSection().
(pthread_mutex_trylock): Use TryEnterCriticalSection(). This is
not supported by Windows 9x, but trylock is a hack anyway, IMHO.
(pthread_mutex_unlock): Use LeaveCriticalSection().
1998-07-14 Ben Elliston <bje at cygnus.com>
* attr.c (pthread_attr_setstacksize): Implement.
(pthread_attr_getstacksize): Likewise.
(pthread_attr_setstackaddr): Likewise.
(pthread_attr_getstackaddr): Likewise.
(pthread_attr_init): Likewise.
(pthread_attr_destroy): Likewise.
* condvar.c (pthread_condattr_init): Add `_cond' to function name.
* mutex.c (pthread_mutex_lock): Add `_mutex' to function name.
(pthread_mutex_trylock): Likewise.
(pthread_mutex_unlock): Likewise.
* pthread.h (pthread_condattr_setpshared): Fix typo.
(pthread_attr_init): Add function prototype.
(pthread_attr_destroy): Likewise.
(pthread_attr_setstacksize): Likewise.
(pthread_attr_getstacksize): Likewise.
(pthread_attr_setstackaddr): Likewise.
(pthread_attr_getstackaddr): Likewise.
Mon Jul 13 01:09:55 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Wrap in #ifndef _IMPLEMENT_H
* create.c (pthread_create): Map stacksize attr to Win32.
* mutex.c: Include implement.h
1998-07-13 Ben Elliston <bje at cygnus.com>
* condvar.c (pthread_condattr_init): Implement.
(pthread_condattr_destroy): Likewise.
(pthread_condattr_setpshared): Likewise.
(pthread_condattr_getpshared): Likewise.
* implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.
(PTHREAD_STACK_MIN): Specify; needs confirming.
(ptw32_attr_t): Define this type.
(ptw32_condattr_t): Likewise.
* pthread.h (pthread_mutex_t): Define this type.
(pthread_condattr_t): Likewise.
(pthread_mutex_destroy): Add function prototype.
(pthread_lock): Likewise.
(pthread_trylock): Likewise.
(pthread_unlock): Likewise.
(pthread_condattr_init): Likewise.
(pthread_condattr_destroy): Likewise.
(pthread_condattr_setpshared): Likewise.
(pthread_condattr_getpshared): Likewise.
* mutex.c (pthread_mutex_init): Implement.
(pthread_mutex_destroy): Likewise.
(pthread_lock): Likewise.
(pthread_trylock): Likewise.
(pthread_unlock): Likewise.
1998-07-12 Ben Elliston <bje at cygnus.com>
* implement.h (ptw32_mutexattr_t): Define this implementation
internal type. Application programmers only see a mutex attribute
object as a void pointer.
* pthread.h (pthread_mutexattr_t): Define this type.
(pthread_mutexattr_init): Add function prototype.
(pthread_mutexattr_destroy): Likewise.
(pthread_mutexattr_setpshared): Likewise.
(pthread_mutexattr_getpshared): Likewise.
(pthread_mutexattr_setprotocol): Likewise.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
(PTHREAD_PROCESS_PRIVATE): Define.
(PTHREAD_PROCESS_SHARED): Define.
* mutex.c (pthread_mutexattr_init): Implement.
(pthread_mutexattr_destroy): Implement.
(pthread_mutexattr_setprotocol): Implement.
(pthread_mutexattr_getprotocol): Likewise.
(pthread_mutexattr_setprioceiling): Likewise.
(pthread_mutexattr_getprioceiling): Likewise.
(pthread_mutexattr_setpshared): Likewise.
(pthread_mutexattr_getpshared): Likewise.
(insert_attr): New function; very preliminary implementation!
(is_attr): Likewise.
(remove_attr): Likewise.
Sat Jul 11 14:48:54 1998 Ross Johnson <rpj at ixobrychus.canberra.edu.au>
* implement.h: Preliminary implementation specific defines.
* create.c (pthread_create): Preliminary implementation.
1998-07-11 Ben Elliston <bje at cygnus.com>
* sync.c (pthread_join): Implement.
* misc.c (pthread_equal): Likewise.
* pthread.h (pthread_join): Add function prototype.
(pthread_equal): Likewise.
1998-07-10 Ben Elliston <bje at cygnus.com>
* misc.c (pthread_self): Implement.
* exit.c (pthread_exit): Implement.
* pthread.h (pthread_exit): Add function prototype.
(pthread_self): Likewise.
(pthread_t): Define this type.
1998-07-09 Ben Elliston <bje at cygnus.com>
* create.c (pthread_create): A dummy stub right now.
* pthread.h (pthread_create): Add function prototype.