Remove typo from semaphore.c.snap-2001-07-03

Update ANNOUNCE to get ready for new snapshot.

5 files changed, 3271 insertions, 3240 deletions

diff --git a/ANNOUNCE b/ANNOUNCE
index 45981a7..4067979 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -63,7 +63,11 @@ On success, both routines return SCHED_OTHER.
 

 sched_rr_get_interval

 ---------------------

-Always returns -1 and sets errno to ENOTSUP.

+Always returns -1 and sets errno to ENOTSUP. This is

+implemented as a macro. It returns ENOTSUP rather than

+ENOSYS because sched_get_priority_max() and

+sched_get_priority_min() are supported, but only for

+SCHED_OTHER.

 

 

 pthread_attr_setschedpolicy

@@ -97,7 +101,7 @@ process. This behaviour is equivalent to the following
 Pthreads defaults:

 

 	Inheritance:	PTHREAD_EXPLICIT_SCHED

-	Priority:	THREAD_PRIORITY_NORMAL

+	Priority:		THREAD_PRIORITY_NORMAL

 

 These are also the defaults in pthreads-win32, and now

 reinforced by changes to the library which now actually

@@ -146,7 +150,7 @@ slight improvement for blocking lock operations. Since the
 type of mutex used internally is PTHREAD_MUTEX_DEFAULT, this

 also results in additional speed improvements to CVs and R/W

 lock operations. Subjective observation shows an

-improvement of approximately 30-35% in R/W locks

+improvement of up to 30-35% in R/W locks

 (from tests/rwlock7.c). This is compared to the

 already improved snapshot-2001-06-06.

 

@@ -163,10 +167,11 @@ unlocked or destroyed, an error will ultimately eventuate
 when the owner thread subsequently attempts to unlock or

 destroy the mutex.

 

-These changes appear to be consistent with both

-the behaviour exhibited by other implementations and their

+These changes are consistent with both the behaviour exhibited

+by PTHREAD_MUTEX_NORMAL in other implementations and their

 documentation, including the Open Group documentation.

 

+

 ------------

 Benchmarking

 ------------

@@ -187,29 +192,51 @@ make clean GCE-bench
 UWIN:

 The benchtests are run as part of the testsuite.

 

-Currently these only provide timing for various

-synchronisation senarios for the different mutex types.

-Each test does timings for each of the implemented

-mutex types and, for reference, also repeats the same

-tests using the following:

 

-- Simple Critical Section

-- POSIX mutex implemented using a Critical Section

-- POSIX mutex implemented using a Win32 Mutex

+In this snapshot there are four benchtests timing

+various mutex senarios. They are:

+

+benchtest1 - Lock plus unlock on an unlocked mutex.

+benchtest2 - Lock plus unlock on a locked mutex.

+benchtest3 - Trylock on a locked mutex.

+benchtest4 - Trylock plus unlock on an unlocked mutex.

+

+

+Each test times up to three alternate synchronisation

+implementations as a reference, and then times each of

+the four mutex types provided by the library. Each is

+described below:

 

-The later two represent the old implementation under

-WNT and W9x respectively.

+Simple Critical Section

+- uses a simple Win32 critical section. There is no

+additional overhead for this case as there is in the

+remaining cases.

+

+POSIX mutex implemented using a Critical Section

+- The old implementation which uses runtime adaptation

+depending on the Windows variant being run on. When

+the pthreads DLL was run on WinNT or higher then

+POSIX mutexes would use Win32 Critical Sections.

+

+POSIX mutex implemented using a Win32 Mutex

+- The old implementation which uses runtime adaptation

+depending on the Windows variant being run on. When

+the pthreads DLL was run on Win9x then POSIX mutexes

+would use Win32 Mutexes (because TryEnterCriticalSection

+is not implemented on Win9x).

 

-The mutex types tested are:

 PTHREAD_MUTEX_DEFAULT

 PTHREAD_MUTEX_NORMAL

 PTHREAD_MUTEX_ERRORCHECK

 PTHREAD_MUTEX_RECURSIVE

+- The current implementation supports these mutex types.

+The underlying basis of POSIX mutexes is now the same

+irrespective of the Windows variant.

+

 

-The results from these tests indicate that is may be

-worthwhile re-introducing runtime adaptation of the

-underlying Win32 synchronisation mechanism for WinNT

-systems.

+In all benchtests, the operation is repeated a large

+number of times and an average is calculated. Loop

+overhead is measured and subtracted from all test times.

 

 

 ---------

diff --git a/ChangeLog b/ChangeLog
index d43e0e8..fba734d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3217 +1,3222 @@
-2001-07-01  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by  - Alexander Terekhov.
-
-	* condvar.c: Fixed lost signal bug reported by Timur Aydin
-	(taydin@snet.net).
-	[RPJ (me) didn't translate the original algorithm
-	correctly.]
-	* semaphore.c: Added sem_post_multiple; this is a useful
-	routine, but it doesn't appear to be standard. For now it's
-	not an exported function.
-	
-2001-06-25  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* create.c (pthread_create): Add priority inheritance
-	attributes.
-	* mutex.c (pthread_mutex_lock): Remove some overhead for
-	PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid
-	calling pthread_self() and pthread_equal() to check/set
-	the mutex owner. Introduce a new pseudo owner for this
-	type. Test results suggest increases in speed of up to
-	90% for non-blocking locks.
-	This is the default type of mutex used internally by other
-	synchronising objects, ie. condition variables and
-	read-write locks. The test rwlock7.c shows about a
-	30-35% speed increase over snapshot 2001-06-06. The
-	price of this is that the application developer
-	must ensure correct behaviour, or explicitly set the
-	mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.
-	For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)
-	type mutexes will not return an error if a thread which is not
-	the owner calls pthread_mutex_unlock. The call will succeed
-	in unlocking the mutex if it is currently locked, but a
-	subsequent unlock by the true owner will then fail with EPERM.
-	This is however consistent with some other implementations.
-	(pthread_mutex_unlock): Likewise.
-	(pthread_mutex_trylock): Likewise.
-	(pthread_mutex_destroy): Likewise.
-	* attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the
-	default inheritance attribute; THREAD_PRIORITY_NORMAL is
-	the default priority for new threads.
-	* sched.c (pthread_attr_setschedpolicy): Added routine.
-	(pthread_attr_getschedpolicy): Added routine.
-	(pthread_attr_setinheritsched): Added routine.
-	(pthread_attr_getinheritsched): Added routine.
-	* pthread.h (sched_rr_set_interval): Added as a macro;
-	returns -1 with errno set to ENOSYS.
-
-2001-06-23  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	*sched.c (pthread_attr_setschedparam): Add priority range
-	check.
-	(sched_setscheduler): New function; checks for a valid
-	pid and policy; checks for permission to set information
-	in the target process; expects pid to be a Win32 process ID,
-	not a process handle; the only scheduler policy allowed is
-	SCHED_OTHER.
-	(sched_getscheduler): Likewise, but checks for permission
-	to query.
-	* pthread.h (SCHED_*): Moved to sched.h as defined in the
-	POSIX standard.
-	* sched.h (SCHED_*): Moved from pthread.h.
-	(pid_t): Defined if necessary.
-	(sched_setscheduler): Defined.
-	(sched_getscheduler): Defined.
-	* pthread.def (sched_setscheduler): Exported.
-	(sched_getscheduler): Likewise.
-
-2001-06-23  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by -  Ralf Brese <Ralf.Brese@pdb4.siemens.de>
-
-	* create.c (pthread_create): Set thread priority from
-	thread attributes.
-
-2001-06-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* Made organisational-only changes to UWIN additions.
-	* dll.c (dllMain): Moved UWIN process attach code
-	to pthread_win32_process_attach_np(); moved
-	instance of pthread_count to global.c.
-	* global.c (pthread_count): Moved from dll.c.
-	* nonportable.c (pthread_win32_process_attach_np):
-	Moved _UWIN code to here from dll.c.
-	* implement.h (pthread_count): Define extern int.
-	* create.c (pthread_count): Remove extern int.
-	* private.c (pthread_count): Likewise.
-	* exit.c (pthread_count): Likewise.
-
-2001-06-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by -  David Korn <dgk@research.att.com>
-
-	* dll.c: Added changes necessary to work with UWIN.
-	* create.c: Likewise.
-	* pthread.h: Likewise.
-	* misc.c: Likewise.
-	* exit.c: Likewise.
-	* private.c: Likewise.
-	* implement.h: Likewise.
-	There is some room at the start of struct pthread_t_
-	to implement the signal semantics in UWIN's posix.dll
-	although this is not yet complete.
-	* Nmakefile: Compatible with UWIN's Nmake utility.
-	* Nmakefile.tests: Likewise - for running the tests.
-
-2001-06-08  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* semaphore.h (sem_t): Fixed for compile and test.
-	* implement.h (sem_t_): Likewise.
-	* semaphore.c: Likewise.
-	* private.c (ptw32_sem_timedwait): Updated to use new
-	opaque sem_t.
-
-2001-06-06  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* semaphore.h (sem_t): Is now an opaque pointer;
-	moved actual definition to implement.h.
-	* implement.h (sem_t_): Move here from semaphore.h;
-	was the definition of sem_t.
-	* semaphore.c: Wherever necessary, changed use of sem
-	from that of a pointer to a pointer-pointer; added
-	extra checks for a valid sem_t; NULL sem_t when
-	it is destroyed; added extra checks when creating
-	and destroying sem_t elements in the NEED_SEM
-	code branches; changed from using a pthread_mutex_t
-	((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)
-	in NEED_SEM branches for access serialisation.
-
-2001-06-06  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutexattr_init): Remove 
-	ptw32_mutex_default_kind.
-	
-2001-06-05  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* nonportable.c (pthread_mutex_setdefaultkind_np):
-	Remove - should not have been included in the first place.
-	(pthread_mutex_getdefaultkind_np): Likewise.
-	* global.c (ptw32_mutex_default_kind): Likewise.
-	* mutex.c (pthread_mutex_init): Remove use of
-	ptw32_mutex_default_kind.
-	* pthread.h (pthread_mutex_setdefaultkind_np): Likewise.
-	(pthread_mutex_getdefaultkind_np): Likewise.
-	* pthread.def (pthread_mutexattr_setkind_np): Added.
-	(pthread_mutexattr_getkind_np): Likewise.
-
-	* README: Many changes that should have gone in before
-	the last snapshot.
-	* README.NONPORTABLE: New - referred to by ANNOUNCE
-	but never created; documents the non-portable routines
-	included in the library - moved from README with new
-	routines added.
-	* ANNOUNCE (pthread_mutexattr_setkind_np): Added to
-	compliance list.
-	(pthread_mutexattr_getkind_np): Likewise.
-
-2001-06-04  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* condvar.c: Add original description of the algorithm as
-	developed by Terekhov and Thomas, plus reference to
-	README.CV.
-
-2001-06-03  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by  - Alexander Terekhov <TEREKHOV@de.ibm.com>
-	                - Louis Thomas <lthomas@arbitrade.com>
-
-	* condvar.c (pthread_cond_init): Completely revamped.
-	(pthread_cond_destroy): Likewise.
-	(ptw32_cond_wait_cleanup): Likewise.
-	(ptw32_cond_timedwait): Likewise.
-	(ptw32_cond_unblock): New general signaling routine.
-	(pthread_cond_signal): Now calls ptw32_cond_unblock.
-	(pthread_cond_broadcast): Likewise.
-	* implement.h (pthread_cond_t_): Revamped.
-	* README.CV: New; explanation of the above changes.
-
-2001-05-30  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* pthread.h (rand_r): Fake using _seed argument to quell
-	compiler warning (compiler should optimise this away later).
-
-	* GNUmakefile (OPT): Leave symbolic information out of the library
-	and increase optimisation level - for smaller faster prebuilt
-	dlls.
-	
-2001-05-29  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by  - Milan Gardian <Milan.Gardian@LEIBINGER.com>
-
-	* Makefile: fix typo.
-	* pthreads.h: Fix problems with stdcall/cdecl conventions, in particular
-	remove the need for PT_STDCALL everywhere; remove warning supression.
-	* (errno): Fix the longstanding "inconsistent dll linkage" problem
-	with errno; now also works with /MD debugging libs - 
-	warnings emerged when compiling pthreads library with /MD (or /MDd)
-	compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads
-	using Multithreaded DLL CRT instead of Multithreaded statically linked
-	CRT).
-	* create.c (pthread_create): Likewise; fix typo.
-	* private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't
-	throw exceptions.
-	* Remove unnecessary #includes from a number of modules -
-	[I had to #include malloc.h in implement.h for gcc - rpj].
-
-2001-05-29  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	Contributed by 	- Thomas Pfaff <tpfaff@gmx.net>
-
-	* pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to
-	PTHREAD_MUTEX_DEFAULT_NP.
-	* (PTHREAD_MUTEX_NORMAL): Similarly.
-	* (PTHREAD_MUTEX_ERRORCHECK): Similarly.
-	* (PTHREAD_MUTEX_RECURSIVE): Similarly.
-	* (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub
-	for pthread_mutexattr_settype.
-	* (pthread_mutexattr_getkind_np): New; Linux compatibility stub
-	for pthread_mutexattr_gettype.
-	* mutex.c (pthread_mutexattr_settype): New; allow
-	the following types of mutex:
-	  PTHREAD_MUTEX_DEFAULT_NP
-	  PTHREAD_MUTEX_NORMAL_NP
-	  PTHREAD_MUTEX_ERRORCHECK_NP
-	  PTHREAD_MUTEX_RECURSIVE_NP
-	* Note that PTHREAD_MUTEX_DEFAULT is equivalent to
-	PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer
-	be recursive by default, and a thread will deadlock if it
-	tries to relock a mutex it already owns. This is inline with
-	other pthreads implementations.
-	* (pthread_mutex_lock): Process the lock request
-	according to the mutex type.
-	* (pthread_mutex_init): Eliminate use of Win32 mutexes as the
-	basis of POSIX mutexes - instead, a combination of one critical section
-	and one semaphore are used in conjunction with Win32 Interlocked* routines.
-	* (pthread_mutex_destroy): Likewise.
-	* (pthread_mutex_lock): Likewise.
-	* (pthread_mutex_trylock): Likewise.
-	* (pthread_mutex_unlock): Likewise.
-	* Use longjmp/setjmp to implement cancelation when building the library
-	using a C compiler which doesn't support exceptions, e.g. gcc -x c (note
-	that gcc -x c++ uses exceptions).
-	* Also fixed some of the same typos and eliminated PT_STDCALL as
-	Milan Gardian's patches above.
-
-2001-02-07  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	Contributed by  - Alexander Terekhov <TEREKHOV@de.ibm.com>
-	
-	* rwlock.c: Revamped.
-	* implement.h (pthread_rwlock_t_): Redefined.
-	This implementation does not have reader/writer starvation problem.
-	Rwlock attempts to behave more like a normal mutex with
-	races and scheduling policy determining who is more important;
-	It also supports recursive locking,
-	has less synchronization overhead (no broadcasts at all,
-	readers are not blocked on any condition variable) and seem to
-	be faster than the current implementation [W98 appears to be
-	approximately 15 percent faster at least - on top of speed increase
-	from Thomas Pfaff's changes to mutex.c - rpj].
-
-2000-12-29  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* Makefile: Back-out "for" loops which don't work.
-
-	* GNUmakefile: Remove the fake.a target; add the "realclean"
-	target; don't remove built libs under the "clean" target.
-
-	* config.h: Add a guard against multiple inclusion.
-
-	* semaphore.h: Add some defines from config.h to make
-	semaphore.h independent of config.h when building apps.
-
-	* pthread.h (_errno): Back-out previous fix until we know how to
-	fix it properly.
-
-	* implement.h (lockCount): Add missing element to pthread_mutex_t_.
-
-	* sync.c (pthread_join): Spelling fix in comment.
-
-	* private.c (ptw32_threadStart): Reset original termination
-	function (C++).
-	(ptw32_threadStart): Cleanup detached threads early in case
-	the library is statically linked.
-	(ptw32_callUserDestroyRoutines): Remove [SEH] __try block from
-	destructor call so that unhandled exceptions will be passed through
-	to the 	system; call terminate() from [C++] try block for the same
-	reason.
-
-	* tsd.c (pthread_getspecific): Add comment.
-
-	* mutex.c (pthread_mutex_init): Initialise new elements in
-	pthread_mutex_t.
-	(pthread_mutex_unlock): Invert "pthread_equal()" test.
-
-2000-12-28  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.
-
-	* config.h.in (HAVE_MODE_T): Added.
-	(_UWIN): Start adding defines for the UWIN package.
-
-	* private.c (ptw32_threadStart): Unhandled exceptions are
-	now passed through to the system to deal with. This is consistent
-	with normal Windows behaviour. C++ applications may use
-	set_terminate() to override the default behaviour which is
-	to call ptw32_terminate(). Ptw32_terminate() cleans up some
-	POSIX thread stuff before calling the system default function
-	which calls abort(). The users termination function should conform
-	to standard C++ semantics which is to not return. It should
-	exit the thread (call pthread_exit()) or exit the application.
-	* private.c (ptw32_terminate): Added as the default set_terminate()
-	function. It calls the system default function after cleaning up
-	some POSIX thread stuff.
-
-	* implement.h (ptw32_try_enter_critical_section): Move
-	declaration.
-	* global.c (ptw32_try_enter_critical_section): Moved
-	from dll.c.
-	* dll.c: Move process and thread attach/detach code into
-	functions in nonportable.c.
-	* nonportable.c (pthread_win32_process_attach_np): Process
-	attach code from dll.c is now available to static linked
-	applications.
-	* nonportable.c (pthread_win32_process_detach_np): Likewise.
-	* nonportable.c (pthread_win32_thread_attach_np): Likewise.
-	* nonportable.c (pthread_win32_thread_detach_np): Likewise.
-
-	* pthread.h: Add new non-portable prototypes for static
-	linked applications.
-
-	* GNUmakefile (OPT): Increase optimisation flag and remove
-	debug info flag.
-
-	* pthread.def: Add new non-portable exports for static
-	linked applications.
-
-2000-12-11  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* FAQ: Update Answer 6 re getting a fully working
-	Mingw32 built library.
-
-2000-10-10  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
- 
-        * misc.c (pthread_self): Restore Win32 "last error"
-        cleared by TlsGetValue() call in
-        pthread_getspecific()
-        - "Steven Reddie" <smr@essemer.com.au>
- 
-2000-09-20  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
- 
-        * mutex.c (pthread_mutex_lock): Record the owner
-        of the mutex. This requires also keeping count of
-        recursive locks ourselves rather than leaving it
-        to Win32 since we need to know when to NULL the
-        thread owner when the mutex is unlocked.
-        (pthread_mutex_trylock): Likewise.
-        (pthread_mutex_unlock): Check that the calling
-        thread owns the mutex, decrement the recursive
-        lock count, and NULL the owner if zero. Return
-        EPERM if the mutex is owned by another thread.
-        * implement.h (pthread_mutex_t_): Add ownerThread
-        and lockCount members.
-        - reported by Arthur Kantor <akantor@bexusa.com>
-
-2000-09-13  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_init): Call
-	TryEnterCriticalSection through the pointer
-	rather than directly so that the dll can load
-	on Windows versions that can't resolve the
-	function, eg. Windows 95
-	- "Jef Gearhart" <jgearhart@tpssys.com>
-
-2000-09-09  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* pthread.h (ctime_r): Fix arg.
-
-2000-09-08  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;
-	doesn't seem to be needed though.
-
-	* cancel.c (pthread_cancel): Must get "self" through
-	calling pthread_self() which will ensure a POSIX thread
-	struct is built for non-POSIX threads; return an error
-	if this fails
-	- Ollie Leahy <ollie@mpt.ie>
-	(pthread_setcancelstate): Likewise.
-	(pthread_setcanceltype): Likewise.
-	* misc.c (ptw32_cancelable_wait): Likewise.
-
-	* private.c (ptw32_tkAssocCreate): Remove unused #if 0
-	wrapped code.
-
-	* pthread.h (ptw32_get_exception_services_code):
-	Needed to be forward declared unconditionally.
-
-2000-09-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* cancel.c (pthread_cancel): If called from the main
-	thread "self" would be NULL; get "self" via pthread_self()
-	instead of directly from TLS so that an implicit
-	pthread object is created.
-
-	* misc.c (pthread_equal): Strengthen test for NULLs.
-
-2000-09-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* condvar.c (ptw32_cond_wait_cleanup): Ensure that all
-	waking threads check if they are the last, and notify
-	the broadcaster if so - even if an error occurs in the
-	waiter.
-
-	* semaphore.c (_decrease_semaphore): Should be
-	a call to ptw32_decrease_semaphore.
-	(_increase_semaphore): Should be a call to
-	ptw32_increase_semaphore.
-
-	* misc.c (ptw32_cancelable_wait): Renamed from
-	CancelableWait.
-	* rwlock.c (_rwlock_check*): Renamed to
-	ptw32_rwlock_check*.
-	* mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.
-	* condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.
-	(_cond_check*): Renamed to ptw32_cond_check*.
-	(cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.
-	(ptw32_cond_timedwait): Add comments.
-
-2000-08-22  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* private.c (ptw32_throw): Fix exception test;
-	move exceptionInformation declaration.
-
-	* tsd.c (pthread_key_create): newkey wrongly declared.
-
-	* pthread.h: Fix comment block.
-
-2000-08-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_destroy): Check that the mutex isn't
-	held; invalidate the mutex as early as possible to avoid
-	contention; not perfect - FIXME!
-
-	* rwlock.c (pthread_rwlock_init): Remove redundant assignment
-	to "rw".
-	(pthread_rwlock_destroy): Invalidate the rwlock before
-	freeing up any of it's resources - to avoid contention.
-
-	* private.c (ptw32_tkAssocCreate): Change assoc->lock
-	to use a dynamically initialised mutex - only consumes
-	a W32 mutex or critical section when first used,
-	not before.
-
-	* mutex.c (pthread_mutex_init): Remove redundant assignment
-	to "mx".
-	(pthread_mutexattr_destroy): Set attribute to NULL
-	before freeing it's memory - to avoid contention.
-
-	* implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):
-	Must be defined for all compilers - used as generic
-	exception selectors by ptw32_throw().
-
-	* Several: Fix typos from scripted edit session
-	yesterday.
-
-	* nonportable.c (pthread_mutexattr_setforcecs_np):
-	Moved this function from mutex.c.
-	(pthread_getw32threadhandle_np): New function to
-	return the win32 thread handle that the POSIX
-	thread is using.
-	* mutex.c (pthread_mutexattr_setforcecs_np):
-	Moved to new file "nonportable.c".
-
-	* pthread.h (PTW32_BUILD): Only	redefine __except
-	and catch compiler keywords if we aren't building
-	the library (ie. PTW32_BUILD is not defined) - 
-	this is safer than defining and then undefining
-	if not building the library.
-	* implement.h: Remove __except and catch undefines.
-	* Makefile (CFLAGS): Define PTW32_BUILD.
-	* GNUmakefile (CFLAGS): Define PTW32_BUILD.
-
-	* All appropriate: Change Pthread_exception* to
-	ptw32_exception* to be consistent with internal
-	identifier naming.
-
-	* private.c (ptw32_throw): New function to provide
-	a generic exception throw for all internal
-	exceptions and EH schemes.
-	(ptw32_threadStart): pthread_exit() value is now
-	returned via the thread structure exitStatus
-	element.
-	* exit.c (pthread_exit): pthread_exit() value is now
-	returned via the thread structure exitStatus
-	element.
-	* cancel.c (ptw32_cancel_self): Now uses ptw32_throw.
-	(pthread_setcancelstate): Ditto.
-	(pthread_setcanceltype): Ditto.
-	(pthread_testcancel): Ditto.
-	(pthread_cancel): Ditto.
-	* misc.c (CancelableWait): Ditto.
-	* exit.c (pthread_exit): Ditto.
-	* All applicable: Change PTW32_ prefix to
-	PTW32_ prefix to remove leading underscores
-	from private library identifiers.
-
-2000-08-17  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* All applicable: Change _pthread_ prefix to
-	ptw32_ prefix to remove leading underscores
-	from private library identifiers (single
-	and double leading underscores are reserved in the
-	ANSI C standard for compiler implementations).
-
-	* tsd.c (pthread_create_key): Initialise temporary
-	key before returning it's address to avoid race
-	conditions.
-
-2000-08-13  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* errno.c: Add _MD precompile condition; thus far
-	had no effect when using /MD compile option but I
-	thnk it should be there.
-
-	* exit.c: Add __cplusplus to various #if lines;
-	was compiling SEH code even when VC++ had
-	C++ compile options.
-
-	* private.c: ditto.
-
-	* create.c (pthread_create): Add PT_STDCALL macro to
-	function pointer arg in _beginthread().
-
-	* pthread.h: PT_STDCALL really does need to be defined
-	in both this and impliment.h; don't set it to __cdecl
-	- this macro is only used to extend function pointer
-	casting for functions that will be passed as parameters.
-	(~PThreadCleanup): add cast and group expression.
-	(_errno): Add _MD compile conditional.
-	(PtW32NoCatchWarn): Change pragma message.
-
-	* implement.h: Move and change PT_STDCALL define.
-
-	* need_errno.h: Add _MD to compilation conditional.
-
-	* GNUmakefile: Substantial rewrite for new naming
-	convention; set for nil optimisation (turn it up
-	when we have a working library build; add target
-	"fake.a" to build a libpthreadw32.a from the VC++
-	built DLL pthreadVCE.dll.
-
-	* pthread.def (LIBRARY): Don't specify in the .def
-	file - it is specified on the linker command line
-	since we now use the same .def file for variously
-	named .dlls.
-
-	* Makefile: Substantial rewrite for new naming
-	convention; default nmake target only issues a
-	help message; run nmake with specific target
-	corresponding to the EH scheme being used.
-
-	* README: Update information; add naming convention
-	explanation.
-
-	* ANNOUNCE: Update information.
-
-2000-08-12  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* pthread.h: Add compile-time message when using
-	MSC_VER compiler and C++ EH to warn application
-	programmers to use PtW32Catch instead of catch(...)
-	if they want cancelation and pthread_exit to work.
-
-	* implement.h: Remove #include <semaphore.h>; we
-	use our own local semaphore.h.
-
-2000-08-10  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* cleanup.c (pthread_pop_cleanup): Remove _pthread
-	prefix from __except and catch keywords; implement.h
-	now simply undefines ptw32__except and
-	ptw32_catch if defined; VC++ was not textually
-	substituting ptw32_catch etc back to catch as
-	it was redefined; the reason for using the prefixed
-	version was to make it clear that it was not using
-	the pthread.h redefined catch keyword.
-
-	* private.c (ptw32_threadStart): Ditto.
-	(ptw32_callUserDestroyRoutines): Ditto.
-
-	* implement.h (ptw32__except): Remove #define.
-	(ptw32_catch): Remove #define.
-
-	* GNUmakefile (pthread.a): New target to build
-	libpthread32.a from pthread.dll using dlltool.
-
-	* buildlib.bat: Duplicate cl commands with args to
-	build C++ EH version of pthread.dll; use of .bat
-	files is redundant now that nmake compatible
-	Makefile is included; used as a kludge only now.
-
-	* Makefile: Localise some macros and fix up the clean:
-	target to extend it and work properly.
-
-	* CONTRIBUTORS: Add contributors.
-
-	* ANNOUNCE: Updated.
-
-	* README: Updated.
-
-2000-08-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* pthread.h: Remove #warning - VC++ doesn't accept it.
-
-2000-08-05  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* pthread.h (PtW32CatchAll): Add macro. When compiling
-	applications using VC++ with C++ EH rather than SEH
-	'PtW32CatchAll' must be used in place of any 'catch( ... )'
-	if the application wants pthread cancelation or
-	pthread_exit() to work.
-
-2000-08-03  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* pthread.h: Add a base class ptw32_exception for
-	library internal exceptions and change the "catch"
-	re-define macro to use it.
-
-2000-08-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* GNUmakefile (CFLAGS): Add -mthreads.
-	Add new targets to generate cpp and asm output.
-
-	* sync.c (pthread_join): Remove dead code.
-
-2000-07-25  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* sched.c (sched_get_priority_max): Handle different WinCE and
-	Win32 priority values together.
-	(sched_get_priority_min): Ditto.
-	- Tristan Savatier <tristan@mpegtv.com>
-
-	* create.c (pthread_create): Force new threads to wait until
-	pthread_create has the new thread's handle; we also retain
-	a local copy of the handle for internal use until
-	pthread_create returns.
-
-	* private.c (ptw32_threadStart): Initialise ei[].
-	(ptw32_threadStart): When beginthread is used to start the
-	thread, force waiting until the creator thread had the 
-	thread handle.
-
-	* cancel.c (ptw32_cancel_thread): Include context switch
-	code for defined(_X86_) environments in addition to _M_IX86.
-
-	* rwlock.c (pthread_rwlock_destroy): Assignment changed
-	to avoid compiler warning.
-
-	* private.c (ptw32_get_exception_services_code): Cast
-	NULL return value to avoid compiler warning.
-
-	* cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable
-	to avoid compiler warnings.
-
-	* misc.c (ptw32_new): Change "new" variable to "t" to avoid
-	confusion with the C++ keyword of the same name.
-
-	* condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.
-	(cond_timedwait): Remove unused local variables. to avoid
-	compiler warnings.
-
-	* dll.c (dllMain): Remove 2000-07-21 change - problem
-	appears to be in pthread_create().
-
-2000-07-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* tsd.c (pthread_key_create): If a destructor was given
-	and the pthread_mutex_init failed, then would try to
-	reference a NULL pointer (*key); eliminate this section of
-	code by using a dynamically initialised mutex
-	(PTHREAD_MUTEX_INITIALIZER).
-
-	* tsd.c (pthread_setspecific): Return an error if
-	unable to set the value; simplify cryptic conditional.
-
-	* tsd.c (pthread_key_delete): Locking threadsLock relied
-	on mutex_lock returning an error if the key has no destructor.
-	ThreadsLock is only initialised if the key has a destructor.
-	Making this mutex a static could reduce the number of mutexes
-	used by an application since it is actually created only at
-	first use and it's often destroyed soon after.
-	
-2000-07-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* FAQ: Added Q5 and Q6.
-
-2000-07-21  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>
-
-	* create.c (pthread_create): Set threadH to 0 (zero)
-	everywhere. Some assignments were using NULL. Maybe
-	it should be NULL everywhere - need to check. (I know
-	they are nearly always the same thing - but not by
-	definition.)
-
-	* dll.c: Include resource leakage work-around. This is a
-	partial FIXME which doesn't stop all leakage. The real
-	problem needs to be found and fixed.
-	- "David Baggett" <dmb@itasoftware.com>
-
-	* misc.c (pthread_self): Try to catch NULL thread handles
-	at the point where they might be generated, even though
-	they should always be valid at this point.
-
-	* tsd.c (pthread_setspecific): return an error value if
-	pthread_self() returns NULL.
-
-	* sync.c (pthread_join): return an error value if
-	pthread_self() returns NULL.
-
-	* signal.c (pthread_sigmask): return an error value if
-	pthread_self() returns NULL.
-
-2000-03-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* attr.c (pthread_attr_init): Set default stacksize to zero (0)
-	rather than PTHREAD_STACK_MIN even though these are now the same.
-
-	* pthread.h (PTHREAD_STACK_MIN): Lowered to 0.
-
-2000-01-28  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_init): Free mutex if it has been alloced;
-	if critical sections can be used instead of Win32 mutexes, test
-	that the critical section works and return an error if not.
-
-2000-01-07  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not
-	compiling as C++.
-	(pthread_push_cleanup): Include SEH code only if MSC is not
-	compiling as C++.
-
-	* pthread.h: Include SEH code only if MSC is not
-	compiling as C++.
-
-	* implement.h: Include SEH code only if MSC is not
-	compiling as C++.
-
-	* cancel.c (ptw32_cancel_thread): Add _M_IX86 check.
-	(pthread_testcancel): Include SEH code only if MSC is not
-	compiling as C++.
-	(ptw32_cancel_self): Include SEH code only if MSC is not
-	compiling as C++.
-
-2000-01-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* Makefile: Remove inconsistencies in 'cl' args
-	- Erik Hensema <erik.hensema@group2000.nl>
-
-2000-01-04  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* private.c (ptw32_get_exception_services_code): New; returns
-	value of EXCEPTION_PTW32_SERVICES.
-	(ptw32_processInitialize): Remove initialisation of
-	ptw32_exception_services which is no longer needed.
-
-	* pthread.h (ptw32_exception_services): Remove extern.
-	(ptw32_get_exception_services_code): Add function prototype;
-	use this to return EXCEPTION_PTW32_SERVICES value instead of
-	using the ptw32_exception_services variable which I had
-	trouble exporting through pthread.def.
-
-	* global.c (ptw32_exception_services): Remove declaration.
-
-1999-11-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* implement.h: Forward declare ptw32_new();
-
-	* misc.c (ptw32_new): New; alloc and initialise a new pthread_t.
-	(pthread_self): New thread struct is generated 	by new routine
-	ptw32_new().
-
-	* create.c (pthread_create): New thread struct is generated
-	by new routine ptw32_new().
-
-1999-11-21  Ross Johnson  <rpj@special.ise.canberra.edu.au>
-
-	* global.c (ptw32_exception_services): Declare new variable. 
-
-	* private.c (ptw32_threadStart): Destroy thread's
-	cancelLock mutex; make 'catch' and '__except' usageimmune to
-	redfinitions in pthread.h.
-	(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.
-
-	* 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.
-	- Jason Nye <jnye@nbnet.nb.ca>
-	- Erik Hensema <erik.hensema@group2000.nl>
-
-1999-11-13  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* configure.in (AC_OUTPUT): Put generated output into GNUmakefile
-	rather than Makefile. Makefile will become the MSC nmake compatible
-	version
-	- Erik Hensema <erik.hensema@group2000.nl>
-
-	* misc.c (pthread_self): Add a note about GetCurrentThread
-	returning a pseudo-handle
-	- John Bossom (John.Bossom@cognos.com>
-
-1999-11-10  Ross Johnson  <rpj@ixobrychus.canberra.edu.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.
-	- Todd Owen <towen@lucidcalm.dropbear.id.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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* 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.
-	- Tristan Savatier <tristan@mpegtv.com>
-
-1999-10-30  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* 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:
-	- Erik Hensema <erik.hensema@group2000.nl>
-
-1999-10-23  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* pthread.h (ctime_r): Fix incorrect argument "_tm"
-	- Erik Hensema <erik.hensema@group2000.nl>
-
-1999-10-21  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* 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
-	- Aurelio Medina <aureliom@crt.com>
-
-1999-10-17  Ross Johnson  <rpj@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* 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.
-	- Lorin Hochstein <lmh@xiphos.ca> and 
-	  Peter Slacik <Peter.Slacik@tatramed.sk>;
-	the last waiter will now reset the CV's wasBroadcast flag
-	- Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>.
-
-Thu Sep 16 1999  Ross Johnson  <rpj@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.
-
-Sat Sep 10 12:56:13 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	The following code for POSIX read/write locks was contributed
-	by Aurelio Medina.
-
-	* 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.
-
-Wed Sep  8 12:56:13 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_destroy): Free mutex memory.
-	- Milan Gardian <mg@tatramed.sk>
-
-1999-08-22  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* exit.c (pthread_exit): Fix reference to potentially
-	uninitialised pointer.
-
-1999-08-21  Ross Johnson  <rpj@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@ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): Return exit status from
-	the application thread startup routine.
-	- Milan Gardian <mg@tatramed.sk>
-
-1999-08-18  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* exit.c (pthread_exit): Put status into pthread_t->exitStatus
-	- John Bossom <john.Bossom@cognos.com>
-	* private.c (ptw32_threadStart): Set pthread->exitStatus
-	on exit of try{} block.
-	- John Bossom <john.Bossom@cognos.com>
-	* 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).
-	- John Bossom <john.Bossom@cognos.com>
-
-Tue Aug 17 20:17:58 CDT 1999  Mumit Khan  <khan@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@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@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* 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.
-	- Peter Slacik <Peter.Slacik@tatramed.sk>
-
-1999-07-09  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	The following changes fix a bug identified by
-	Lorin Hochstein <lmh@xiphos.ca> and solved by
-	John Bossom <John.Bossom@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.
-
-
-	* 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@ixobrychus.canberra.edu.au>
-
-	* semaphore.h (mode_t): Conditionally typedef it.
-
-Fri May 28 13:33:05 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* condvar.c (pthread_cond_broadcast): Fix possible memory fault
-	- Mark E. Armstrong <avail@pacbell.net>
-	
-Thu May 27 13:08:46 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* condvar.c (pthread_cond_broadcast): Fix logic bug
-	- Peter Slacik <Peter.Slacik@tatramed.sk>;
-	optimise sem_post loop
-	- Bossom, John <John.Bossom@Cognos.COM>.
-
-Fri May 14 12:13:18 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* attr.c (pthread_attr_setdetachstate): Fix logic bug
-	- Mike Russo <miker@eai.com>.
-
-Sat May  8 09:42:30 1999  Ross Johnson  <rpj@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@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@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@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@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@ixobrychus.canberra.edu.au>
-
-	* Makefile.in (OBJS): Add errno.o.
-
-Fri Apr  2 11:08:50 1999  Ross Johnson  <rpj@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.
-
-	* pthread.h (ptw32_sem_t): Change to sem_t. 
-
-	* semaphore.c (ptw32_sem_*): Change to sem_*; these functions
-	will be exported from the library; set errno on error.
-	- John Bossom <jebossom@cognos.com>
-	(ptw32_sem_timedwait): Moved to private.c.
-
-	* private.c (ptw32_sem_timedwait): Moved from semaphore.c;
-	set errno on error.
-
-	* errno.c (_errno): New file. New function.
-	- John Bossom
-
-	* pthread.h (pthread_t_): Add per-thread errno element.
-
-Fri Mar 26 14:11:45 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* semaphore.c (ptw32_sem_timedwait): Check for negative
-	milliseconds.
-	- Tor Lillqvist <tml@iki.fi>
-
-Wed Mar 24 11:32:07 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* misc.c (CancelableWait): Initialise exceptionInformation[2].
-	(pthread_self): Get a real Win32 thread handle for implicit threads.
-	- John Bossom <jebossom@cognos.com>
-
-	* cancel.c (pthread_testcancel): Initialise exceptionInformation[2].
-	- John Bossom <jebossom@cognos.com>
-
-	* implement.h (SE_INFORMATION): Fix values.
-	- John Bossom <jebossom@cognos.com>
-
-	* private.c (ptw32_threadDestroy): Close the thread handle.
-	- John Bossom <jebossom@cognos.com>
-
-Fri Mar 19 12:57:27 1999  Ross Johnson  <rpj@swan.canberra.edu.au>
-
-	* cancel.c (comments): Update and cleanup.
-
-Fri Mar 19 09:12:59 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.
-
-	* pthread.h (PTHREAD_CANCELED): defined.
-
-Tue Mar 16  1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* all: Add GNU LGPL and Copyright and Warranty.
-	
-Mon Mar 15 00:20:13 1999  Ross Johnson  <rpj@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@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@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@ixobrychus.canberra.edu.au>
-
-	* misc.c (CancelableWait): Undo changes from Mar 8 and 7.
-
-Mon Mar  8 11:18:59 1999  Ross Johnson  <rpj@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@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@ixobrychus.canberra.edu.au>
-
-	* implement.h: Undate comments.
-
-Sun Feb 21 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around
-	cs element initialiser.
-
-1999-02-21  Ben Elliston  <bje@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@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@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@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@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@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@ixobrychus.canberra.edu.au>
-
-	* configure: Various temporary changes.
-	- Kevin Ruland <Kevin.Ruland@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@swan.canberra.edu.au>
-
-	* semaphore.c: Comment format changes.
-
-Thu Feb  4 10:07:28 1999  Ross Johnson  <rpj@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@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@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@swan.canberra.edu.au>
-
-	* implement.h: Add #include <pthread.h>.
-	Change sem_t to ptw32_sem_t.
-
-	Various patches by Kevin Ruland <Kevin.Ruland@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@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@ixobrychus.canberra.edu.au>
-
-	* semaphore.c (sem_wait): Remove second arg to 
-	pthreadCancelableWait() call.
-
-Sat Jan 23 17:36:40 1999  Ross Johnson  <rpj@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@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@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@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.
-
-	* 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().
-	- Scott Lightner <scott@curriculum.com>
-
-Tue Jan 19 10:27:39 1999  Ross Johnson  <rpj@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@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@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@ixobrychus.canberra.edu.au>
-
-	* condvar.c (cond_timedwait): Remove comment.
-
-Fri Jan 15 15:41:28 1999  Ross Johnson  <rpj@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@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@ixobrychus.canberra.edu.au>
-
-	* build.bat: Delete old binaries before compiling/linking.
-
-Tue Jan 12 09:58:38 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* dll.c: The Microsoft compiler pragmas probably are more
-	appropriately protected by _MSC_VER than by _WIN32.
-	- Tor Lillqvist <tml@iki.fi>.
-
-	* condvar.c (pthread_cond_timedwait): Fix function description
-	comments.
-
-	* 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.
-	- Tor Lillqvist <tml@iki.fi>.
-
-	* pthread.def: pthread_mutex_destroy was missing from the def file
-	- Tor Lillqvist <tml@iki.fi>.
-
-	* 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.
-	- Tor Lillqvist <tml@iki.fi>. 
-
-	* semaphore.c (sem_post): Correct typo in comment.
-
-Mon Jan 11 20:33:19 1999  Ross Johnson  <rpj@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  Ben Elliston  <bje@cygnus.com>
-
-	* condvar.c (pthread_cond_init): Invert logic when testing the
-	return value from calloc().
-	- Tor Lillqvist <tml@iki.fi>.
-
-Sat Jan  9 14:32:08 1999  Ross Johnson  <rpj@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@hem2.passagen.se>.
-
-Tue Jan  5 16:33:04 1999  Ross Johnson  <rpj@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@toilet.to.cygnus.com>
-
-	* README: Update info about subscribing to the mailing list.
-
-Mon Jan  4 11:23:40 1999  Ross Johnson  <rpj@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* semaphore.c: Initial version. From John Bossom's implementation.
-	* semaphore.h: Initial version. From John Bossom's implementation.
-
-Mon Dec 28 09:54:39 1998  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
-
-	* attr.c (pthread_attr_setstacksize): Merge with John Bossom's version.
-	(pthread_attr_getstacksize): Merge with John Bossom's version.
-	(pthread_attr_setstackaddr): Merge with John Bossom's version.
-	(pthread_attr_getstackaddr): Merge with John Bossom's version.
-	(pthread_attr_init): Merge with John Bossom's version.
-	(pthread_attr_destroy): Merge with John Bossom's version.
-	(pthread_attr_getdetachstate): Merge with John Bossom's version.
-	(pthread_attr_setdetachstate): Merge with John Bossom's version.
-	(is_attr): attr is now **attr (was *attr), so add extra NULL pointer
-	test.
-
-	* 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@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* cancel.c (pthread_setcancelstate): Replaced by John Bossom's version.
-	(pthread_setcanceltype): Replaced by John Bossom's version.
-	(pthread_testcancel): Replaced by John Bossom's version.
-	(pthread_cancel): Replaced by John Bossom's version.
-	
-	* exit.c (pthread_exit): Replaced by John Bossom's version.
-
-	* misc.c (pthread_self): Replaced by John Bossom's version.
-	(pthread_equal): Replaced by John Bossom's version.
-
-	* sync.c (pthread_detach): Replaced by John Bossom's version.
-	(pthread_join): Replaced by John Bossom's version.
-
-	* create.c (pthread_create): Replaced by John Bossom's version.
-
-	* private.c (ptw32_processInitialize): New by John Bossom.
-	(ptw32_processTerminate): Non-public function by John Bossom.
-	(ptw32_threadStart): Non-public function by John Bossom.
- 	(ptw32_threadDestroy): Non-public function by John Bossom.
-	(ptw32_cleanupStack): Non-public function by John Bossom.
-	(ptw32_tkAssocCreate): Non-public function by John Bossom.
-	(ptw32_tkAssocDestroy): Non-public function by John Bossom.
-	(ptw32_callUserDestroyRoutines): Non-public function by John Bossom.
-
-	* implement.h: Added John Bossom's non-API structures and
-	declarations.
-
-	* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress
-	to resolve compile warning from MSVC.
-
-	* dll.c (DLLmain): Replaced by John Bossom's version.
-	* 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@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@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@ise.canberra.edu.au>
-
-	* README: Correct cygwin32 compatibility statement.
-
-Sun Nov 15 21:24:06 1998  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>
-
-	* cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.
-	Fixup CVS merge conflicts.
-
-1998-10-30  Ben Elliston  <bje@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@swan.canberra.edu.au>
-
-	* cleanup.c (ptw32_handler_push): Fixed bug appending new
-	handler to list reported by Peter Slacik
-	<Peter.Slacik@leibinger.freinet.de>.
-	(new_thread): Rename poorly named local variable to
-	"new_handler".
-
-Sat Oct 24 18:34:59 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@ixobrychus.canberra.edu.au>
-
-	* pthread.def: New file for building the DLL.
-
-1998-10-05  Ben Elliston  <bje@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@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@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@cygnus.com>
-
-	* COPYING: Remove.
-
-	* COPYING.LIB: Add. This library is under the LGPL.
-
-1998-09-13  Ben Elliston  <bje@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@cygnus.com>
-
-	* windows.h: No longer needed; remove.
-
-	* windows.c: Likewise.
-
-Sat Sep 12 20:09:24 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@cygnus.com>
-
-	* fork.c (fork): Autoconfiscate.
-
-Sat Jul 25 00:00:13 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@ixobrychus.canberra.edu.au>
-
-	* implement.h: Preliminary implementation specific defines.
-
-	* create.c (pthread_create): Preliminary implementation.
-
-1998-07-11  Ben Elliston  <bje@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@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@cygnus.com>
-
-	* create.c (pthread_create): A dummy stub right now.
-
-	* pthread.h (pthread_create): Add function prototype.
+2001-07-03  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* pthread.h (_POSIX_READER_WRITER_LOCKS): Define it

+	if not already defined.

+

+2001-07-01  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by  - Alexander Terekhov.

+

+	* condvar.c: Fixed lost signal bug reported by Timur Aydin

+	(taydin@snet.net).

+	[RPJ (me) didn't translate the original algorithm

+	correctly.]

+	* semaphore.c: Added sem_post_multiple; this is a useful

+	routine, but it doesn't appear to be standard. For now it's

+	not an exported function.

+	

+2001-06-25  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* create.c (pthread_create): Add priority inheritance

+	attributes.

+	* mutex.c (pthread_mutex_lock): Remove some overhead for

+	PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid

+	calling pthread_self() and pthread_equal() to check/set

+	the mutex owner. Introduce a new pseudo owner for this

+	type. Test results suggest increases in speed of up to

+	90% for non-blocking locks.

+	This is the default type of mutex used internally by other

+	synchronising objects, ie. condition variables and

+	read-write locks. The test rwlock7.c shows about a

+	30-35% speed increase over snapshot 2001-06-06. The

+	price of this is that the application developer

+	must ensure correct behaviour, or explicitly set the

+	mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.

+	For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)

+	type mutexes will not return an error if a thread which is not

+	the owner calls pthread_mutex_unlock. The call will succeed

+	in unlocking the mutex if it is currently locked, but a

+	subsequent unlock by the true owner will then fail with EPERM.

+	This is however consistent with some other implementations.

+	(pthread_mutex_unlock): Likewise.

+	(pthread_mutex_trylock): Likewise.

+	(pthread_mutex_destroy): Likewise.

+	* attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the

+	default inheritance attribute; THREAD_PRIORITY_NORMAL is

+	the default priority for new threads.

+	* sched.c (pthread_attr_setschedpolicy): Added routine.

+	(pthread_attr_getschedpolicy): Added routine.

+	(pthread_attr_setinheritsched): Added routine.

+	(pthread_attr_getinheritsched): Added routine.

+	* pthread.h (sched_rr_set_interval): Added as a macro;

+	returns -1 with errno set to ENOSYS.

+

+2001-06-23  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	*sched.c (pthread_attr_setschedparam): Add priority range

+	check.

+	(sched_setscheduler): New function; checks for a valid

+	pid and policy; checks for permission to set information

+	in the target process; expects pid to be a Win32 process ID,

+	not a process handle; the only scheduler policy allowed is

+	SCHED_OTHER.

+	(sched_getscheduler): Likewise, but checks for permission

+	to query.

+	* pthread.h (SCHED_*): Moved to sched.h as defined in the

+	POSIX standard.

+	* sched.h (SCHED_*): Moved from pthread.h.

+	(pid_t): Defined if necessary.

+	(sched_setscheduler): Defined.

+	(sched_getscheduler): Defined.

+	* pthread.def (sched_setscheduler): Exported.

+	(sched_getscheduler): Likewise.

+

+2001-06-23  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by -  Ralf Brese <Ralf.Brese@pdb4.siemens.de>

+

+	* create.c (pthread_create): Set thread priority from

+	thread attributes.

+

+2001-06-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* Made organisational-only changes to UWIN additions.

+	* dll.c (dllMain): Moved UWIN process attach code

+	to pthread_win32_process_attach_np(); moved

+	instance of pthread_count to global.c.

+	* global.c (pthread_count): Moved from dll.c.

+	* nonportable.c (pthread_win32_process_attach_np):

+	Moved _UWIN code to here from dll.c.

+	* implement.h (pthread_count): Define extern int.

+	* create.c (pthread_count): Remove extern int.

+	* private.c (pthread_count): Likewise.

+	* exit.c (pthread_count): Likewise.

+

+2001-06-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by -  David Korn <dgk@research.att.com>

+

+	* dll.c: Added changes necessary to work with UWIN.

+	* create.c: Likewise.

+	* pthread.h: Likewise.

+	* misc.c: Likewise.

+	* exit.c: Likewise.

+	* private.c: Likewise.

+	* implement.h: Likewise.

+	There is some room at the start of struct pthread_t_

+	to implement the signal semantics in UWIN's posix.dll

+	although this is not yet complete.

+	* Nmakefile: Compatible with UWIN's Nmake utility.

+	* Nmakefile.tests: Likewise - for running the tests.

+

+2001-06-08  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* semaphore.h (sem_t): Fixed for compile and test.

+	* implement.h (sem_t_): Likewise.

+	* semaphore.c: Likewise.

+	* private.c (ptw32_sem_timedwait): Updated to use new

+	opaque sem_t.

+

+2001-06-06  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* semaphore.h (sem_t): Is now an opaque pointer;

+	moved actual definition to implement.h.

+	* implement.h (sem_t_): Move here from semaphore.h;

+	was the definition of sem_t.

+	* semaphore.c: Wherever necessary, changed use of sem

+	from that of a pointer to a pointer-pointer; added

+	extra checks for a valid sem_t; NULL sem_t when

+	it is destroyed; added extra checks when creating

+	and destroying sem_t elements in the NEED_SEM

+	code branches; changed from using a pthread_mutex_t

+	((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)

+	in NEED_SEM branches for access serialisation.

+

+2001-06-06  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* mutex.c (pthread_mutexattr_init): Remove 

+	ptw32_mutex_default_kind.

+	

+2001-06-05  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* nonportable.c (pthread_mutex_setdefaultkind_np):

+	Remove - should not have been included in the first place.

+	(pthread_mutex_getdefaultkind_np): Likewise.

+	* global.c (ptw32_mutex_default_kind): Likewise.

+	* mutex.c (pthread_mutex_init): Remove use of

+	ptw32_mutex_default_kind.

+	* pthread.h (pthread_mutex_setdefaultkind_np): Likewise.

+	(pthread_mutex_getdefaultkind_np): Likewise.

+	* pthread.def (pthread_mutexattr_setkind_np): Added.

+	(pthread_mutexattr_getkind_np): Likewise.

+

+	* README: Many changes that should have gone in before

+	the last snapshot.

+	* README.NONPORTABLE: New - referred to by ANNOUNCE

+	but never created; documents the non-portable routines

+	included in the library - moved from README with new

+	routines added.

+	* ANNOUNCE (pthread_mutexattr_setkind_np): Added to

+	compliance list.

+	(pthread_mutexattr_getkind_np): Likewise.

+

+2001-06-04  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* condvar.c: Add original description of the algorithm as

+	developed by Terekhov and Thomas, plus reference to

+	README.CV.

+

+2001-06-03  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by  - Alexander Terekhov <TEREKHOV@de.ibm.com>

+	                - Louis Thomas <lthomas@arbitrade.com>

+

+	* condvar.c (pthread_cond_init): Completely revamped.

+	(pthread_cond_destroy): Likewise.

+	(ptw32_cond_wait_cleanup): Likewise.

+	(ptw32_cond_timedwait): Likewise.

+	(ptw32_cond_unblock): New general signaling routine.

+	(pthread_cond_signal): Now calls ptw32_cond_unblock.

+	(pthread_cond_broadcast): Likewise.

+	* implement.h (pthread_cond_t_): Revamped.

+	* README.CV: New; explanation of the above changes.

+

+2001-05-30  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* pthread.h (rand_r): Fake using _seed argument to quell

+	compiler warning (compiler should optimise this away later).

+

+	* GNUmakefile (OPT): Leave symbolic information out of the library

+	and increase optimisation level - for smaller faster prebuilt

+	dlls.

+	

+2001-05-29  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by  - Milan Gardian <Milan.Gardian@LEIBINGER.com>

+

+	* Makefile: fix typo.

+	* pthreads.h: Fix problems with stdcall/cdecl conventions, in particular

+	remove the need for PT_STDCALL everywhere; remove warning supression.

+	* (errno): Fix the longstanding "inconsistent dll linkage" problem

+	with errno; now also works with /MD debugging libs - 

+	warnings emerged when compiling pthreads library with /MD (or /MDd)

+	compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads

+	using Multithreaded DLL CRT instead of Multithreaded statically linked

+	CRT).

+	* create.c (pthread_create): Likewise; fix typo.

+	* private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't

+	throw exceptions.

+	* Remove unnecessary #includes from a number of modules -

+	[I had to #include malloc.h in implement.h for gcc - rpj].

+

+2001-05-29  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	Contributed by 	- Thomas Pfaff <tpfaff@gmx.net>

+

+	* pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to

+	PTHREAD_MUTEX_DEFAULT_NP.

+	* (PTHREAD_MUTEX_NORMAL): Similarly.

+	* (PTHREAD_MUTEX_ERRORCHECK): Similarly.

+	* (PTHREAD_MUTEX_RECURSIVE): Similarly.

+	* (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub

+	for pthread_mutexattr_settype.

+	* (pthread_mutexattr_getkind_np): New; Linux compatibility stub

+	for pthread_mutexattr_gettype.

+	* mutex.c (pthread_mutexattr_settype): New; allow

+	the following types of mutex:

+	  PTHREAD_MUTEX_DEFAULT_NP

+	  PTHREAD_MUTEX_NORMAL_NP

+	  PTHREAD_MUTEX_ERRORCHECK_NP

+	  PTHREAD_MUTEX_RECURSIVE_NP

+	* Note that PTHREAD_MUTEX_DEFAULT is equivalent to

+	PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer

+	be recursive by default, and a thread will deadlock if it

+	tries to relock a mutex it already owns. This is inline with

+	other pthreads implementations.

+	* (pthread_mutex_lock): Process the lock request

+	according to the mutex type.

+	* (pthread_mutex_init): Eliminate use of Win32 mutexes as the

+	basis of POSIX mutexes - instead, a combination of one critical section

+	and one semaphore are used in conjunction with Win32 Interlocked* routines.

+	* (pthread_mutex_destroy): Likewise.

+	* (pthread_mutex_lock): Likewise.

+	* (pthread_mutex_trylock): Likewise.

+	* (pthread_mutex_unlock): Likewise.

+	* Use longjmp/setjmp to implement cancelation when building the library

+	using a C compiler which doesn't support exceptions, e.g. gcc -x c (note

+	that gcc -x c++ uses exceptions).

+	* Also fixed some of the same typos and eliminated PT_STDCALL as

+	Milan Gardian's patches above.

+

+2001-02-07  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	Contributed by  - Alexander Terekhov <TEREKHOV@de.ibm.com>

+	

+	* rwlock.c: Revamped.

+	* implement.h (pthread_rwlock_t_): Redefined.

+	This implementation does not have reader/writer starvation problem.

+	Rwlock attempts to behave more like a normal mutex with

+	races and scheduling policy determining who is more important;

+	It also supports recursive locking,

+	has less synchronization overhead (no broadcasts at all,

+	readers are not blocked on any condition variable) and seem to

+	be faster than the current implementation [W98 appears to be

+	approximately 15 percent faster at least - on top of speed increase

+	from Thomas Pfaff's changes to mutex.c - rpj].

+

+2000-12-29  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* Makefile: Back-out "for" loops which don't work.

+

+	* GNUmakefile: Remove the fake.a target; add the "realclean"

+	target; don't remove built libs under the "clean" target.

+

+	* config.h: Add a guard against multiple inclusion.

+

+	* semaphore.h: Add some defines from config.h to make

+	semaphore.h independent of config.h when building apps.

+

+	* pthread.h (_errno): Back-out previous fix until we know how to

+	fix it properly.

+

+	* implement.h (lockCount): Add missing element to pthread_mutex_t_.

+

+	* sync.c (pthread_join): Spelling fix in comment.

+

+	* private.c (ptw32_threadStart): Reset original termination

+	function (C++).

+	(ptw32_threadStart): Cleanup detached threads early in case

+	the library is statically linked.

+	(ptw32_callUserDestroyRoutines): Remove [SEH] __try block from

+	destructor call so that unhandled exceptions will be passed through

+	to the 	system; call terminate() from [C++] try block for the same

+	reason.

+

+	* tsd.c (pthread_getspecific): Add comment.

+

+	* mutex.c (pthread_mutex_init): Initialise new elements in

+	pthread_mutex_t.

+	(pthread_mutex_unlock): Invert "pthread_equal()" test.

+

+2000-12-28  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.

+

+	* config.h.in (HAVE_MODE_T): Added.

+	(_UWIN): Start adding defines for the UWIN package.

+

+	* private.c (ptw32_threadStart): Unhandled exceptions are

+	now passed through to the system to deal with. This is consistent

+	with normal Windows behaviour. C++ applications may use

+	set_terminate() to override the default behaviour which is

+	to call ptw32_terminate(). Ptw32_terminate() cleans up some

+	POSIX thread stuff before calling the system default function

+	which calls abort(). The users termination function should conform

+	to standard C++ semantics which is to not return. It should

+	exit the thread (call pthread_exit()) or exit the application.

+	* private.c (ptw32_terminate): Added as the default set_terminate()

+	function. It calls the system default function after cleaning up

+	some POSIX thread stuff.

+

+	* implement.h (ptw32_try_enter_critical_section): Move

+	declaration.

+	* global.c (ptw32_try_enter_critical_section): Moved

+	from dll.c.

+	* dll.c: Move process and thread attach/detach code into

+	functions in nonportable.c.

+	* nonportable.c (pthread_win32_process_attach_np): Process

+	attach code from dll.c is now available to static linked

+	applications.

+	* nonportable.c (pthread_win32_process_detach_np): Likewise.

+	* nonportable.c (pthread_win32_thread_attach_np): Likewise.

+	* nonportable.c (pthread_win32_thread_detach_np): Likewise.

+

+	* pthread.h: Add new non-portable prototypes for static

+	linked applications.

+

+	* GNUmakefile (OPT): Increase optimisation flag and remove

+	debug info flag.

+

+	* pthread.def: Add new non-portable exports for static

+	linked applications.

+

+2000-12-11  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* FAQ: Update Answer 6 re getting a fully working

+	Mingw32 built library.

+

+2000-10-10  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+ 

+        * misc.c (pthread_self): Restore Win32 "last error"

+        cleared by TlsGetValue() call in

+        pthread_getspecific()

+        - "Steven Reddie" <smr@essemer.com.au>

+ 

+2000-09-20  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+ 

+        * mutex.c (pthread_mutex_lock): Record the owner

+        of the mutex. This requires also keeping count of

+        recursive locks ourselves rather than leaving it

+        to Win32 since we need to know when to NULL the

+        thread owner when the mutex is unlocked.

+        (pthread_mutex_trylock): Likewise.

+        (pthread_mutex_unlock): Check that the calling

+        thread owns the mutex, decrement the recursive

+        lock count, and NULL the owner if zero. Return

+        EPERM if the mutex is owned by another thread.

+        * implement.h (pthread_mutex_t_): Add ownerThread

+        and lockCount members.

+        - reported by Arthur Kantor <akantor@bexusa.com>

+

+2000-09-13  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* mutex.c (pthread_mutex_init): Call

+	TryEnterCriticalSection through the pointer

+	rather than directly so that the dll can load

+	on Windows versions that can't resolve the

+	function, eg. Windows 95

+	- "Jef Gearhart" <jgearhart@tpssys.com>

+

+2000-09-09  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* pthread.h (ctime_r): Fix arg.

+

+2000-09-08  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;

+	doesn't seem to be needed though.

+

+	* cancel.c (pthread_cancel): Must get "self" through

+	calling pthread_self() which will ensure a POSIX thread

+	struct is built for non-POSIX threads; return an error

+	if this fails

+	- Ollie Leahy <ollie@mpt.ie>

+	(pthread_setcancelstate): Likewise.

+	(pthread_setcanceltype): Likewise.

+	* misc.c (ptw32_cancelable_wait): Likewise.

+

+	* private.c (ptw32_tkAssocCreate): Remove unused #if 0

+	wrapped code.

+

+	* pthread.h (ptw32_get_exception_services_code):

+	Needed to be forward declared unconditionally.

+

+2000-09-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* cancel.c (pthread_cancel): If called from the main

+	thread "self" would be NULL; get "self" via pthread_self()

+	instead of directly from TLS so that an implicit

+	pthread object is created.

+

+	* misc.c (pthread_equal): Strengthen test for NULLs.

+

+2000-09-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* condvar.c (ptw32_cond_wait_cleanup): Ensure that all

+	waking threads check if they are the last, and notify

+	the broadcaster if so - even if an error occurs in the

+	waiter.

+

+	* semaphore.c (_decrease_semaphore): Should be

+	a call to ptw32_decrease_semaphore.

+	(_increase_semaphore): Should be a call to

+	ptw32_increase_semaphore.

+

+	* misc.c (ptw32_cancelable_wait): Renamed from

+	CancelableWait.

+	* rwlock.c (_rwlock_check*): Renamed to

+	ptw32_rwlock_check*.

+	* mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.

+	* condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.

+	(_cond_check*): Renamed to ptw32_cond_check*.

+	(cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.

+	(ptw32_cond_timedwait): Add comments.

+

+2000-08-22  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* private.c (ptw32_throw): Fix exception test;

+	move exceptionInformation declaration.

+

+	* tsd.c (pthread_key_create): newkey wrongly declared.

+

+	* pthread.h: Fix comment block.

+

+2000-08-18  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* mutex.c (pthread_mutex_destroy): Check that the mutex isn't

+	held; invalidate the mutex as early as possible to avoid

+	contention; not perfect - FIXME!

+

+	* rwlock.c (pthread_rwlock_init): Remove redundant assignment

+	to "rw".

+	(pthread_rwlock_destroy): Invalidate the rwlock before

+	freeing up any of it's resources - to avoid contention.

+

+	* private.c (ptw32_tkAssocCreate): Change assoc->lock

+	to use a dynamically initialised mutex - only consumes

+	a W32 mutex or critical section when first used,

+	not before.

+

+	* mutex.c (pthread_mutex_init): Remove redundant assignment

+	to "mx".

+	(pthread_mutexattr_destroy): Set attribute to NULL

+	before freeing it's memory - to avoid contention.

+

+	* implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):

+	Must be defined for all compilers - used as generic

+	exception selectors by ptw32_throw().

+

+	* Several: Fix typos from scripted edit session

+	yesterday.

+

+	* nonportable.c (pthread_mutexattr_setforcecs_np):

+	Moved this function from mutex.c.

+	(pthread_getw32threadhandle_np): New function to

+	return the win32 thread handle that the POSIX

+	thread is using.

+	* mutex.c (pthread_mutexattr_setforcecs_np):

+	Moved to new file "nonportable.c".

+

+	* pthread.h (PTW32_BUILD): Only	redefine __except

+	and catch compiler keywords if we aren't building

+	the library (ie. PTW32_BUILD is not defined) - 

+	this is safer than defining and then undefining

+	if not building the library.

+	* implement.h: Remove __except and catch undefines.

+	* Makefile (CFLAGS): Define PTW32_BUILD.

+	* GNUmakefile (CFLAGS): Define PTW32_BUILD.

+

+	* All appropriate: Change Pthread_exception* to

+	ptw32_exception* to be consistent with internal

+	identifier naming.

+

+	* private.c (ptw32_throw): New function to provide

+	a generic exception throw for all internal

+	exceptions and EH schemes.

+	(ptw32_threadStart): pthread_exit() value is now

+	returned via the thread structure exitStatus

+	element.

+	* exit.c (pthread_exit): pthread_exit() value is now

+	returned via the thread structure exitStatus

+	element.

+	* cancel.c (ptw32_cancel_self): Now uses ptw32_throw.

+	(pthread_setcancelstate): Ditto.

+	(pthread_setcanceltype): Ditto.

+	(pthread_testcancel): Ditto.

+	(pthread_cancel): Ditto.

+	* misc.c (CancelableWait): Ditto.

+	* exit.c (pthread_exit): Ditto.

+	* All applicable: Change PTW32_ prefix to

+	PTW32_ prefix to remove leading underscores

+	from private library identifiers.

+

+2000-08-17  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* All applicable: Change _pthread_ prefix to

+	ptw32_ prefix to remove leading underscores

+	from private library identifiers (single

+	and double leading underscores are reserved in the

+	ANSI C standard for compiler implementations).

+

+	* tsd.c (pthread_create_key): Initialise temporary

+	key before returning it's address to avoid race

+	conditions.

+

+2000-08-13  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* errno.c: Add _MD precompile condition; thus far

+	had no effect when using /MD compile option but I

+	thnk it should be there.

+

+	* exit.c: Add __cplusplus to various #if lines;

+	was compiling SEH code even when VC++ had

+	C++ compile options.

+

+	* private.c: ditto.

+

+	* create.c (pthread_create): Add PT_STDCALL macro to

+	function pointer arg in _beginthread().

+

+	* pthread.h: PT_STDCALL really does need to be defined

+	in both this and impliment.h; don't set it to __cdecl

+	- this macro is only used to extend function pointer

+	casting for functions that will be passed as parameters.

+	(~PThreadCleanup): add cast and group expression.

+	(_errno): Add _MD compile conditional.

+	(PtW32NoCatchWarn): Change pragma message.

+

+	* implement.h: Move and change PT_STDCALL define.

+

+	* need_errno.h: Add _MD to compilation conditional.

+

+	* GNUmakefile: Substantial rewrite for new naming

+	convention; set for nil optimisation (turn it up

+	when we have a working library build; add target

+	"fake.a" to build a libpthreadw32.a from the VC++

+	built DLL pthreadVCE.dll.

+

+	* pthread.def (LIBRARY): Don't specify in the .def

+	file - it is specified on the linker command line

+	since we now use the same .def file for variously

+	named .dlls.

+

+	* Makefile: Substantial rewrite for new naming

+	convention; default nmake target only issues a

+	help message; run nmake with specific target

+	corresponding to the EH scheme being used.

+

+	* README: Update information; add naming convention

+	explanation.

+

+	* ANNOUNCE: Update information.

+

+2000-08-12  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* pthread.h: Add compile-time message when using

+	MSC_VER compiler and C++ EH to warn application

+	programmers to use PtW32Catch instead of catch(...)

+	if they want cancelation and pthread_exit to work.

+

+	* implement.h: Remove #include <semaphore.h>; we

+	use our own local semaphore.h.

+

+2000-08-10  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* cleanup.c (pthread_pop_cleanup): Remove _pthread

+	prefix from __except and catch keywords; implement.h

+	now simply undefines ptw32__except and

+	ptw32_catch if defined; VC++ was not textually

+	substituting ptw32_catch etc back to catch as

+	it was redefined; the reason for using the prefixed

+	version was to make it clear that it was not using

+	the pthread.h redefined catch keyword.

+

+	* private.c (ptw32_threadStart): Ditto.

+	(ptw32_callUserDestroyRoutines): Ditto.

+

+	* implement.h (ptw32__except): Remove #define.

+	(ptw32_catch): Remove #define.

+

+	* GNUmakefile (pthread.a): New target to build

+	libpthread32.a from pthread.dll using dlltool.

+

+	* buildlib.bat: Duplicate cl commands with args to

+	build C++ EH version of pthread.dll; use of .bat

+	files is redundant now that nmake compatible

+	Makefile is included; used as a kludge only now.

+

+	* Makefile: Localise some macros and fix up the clean:

+	target to extend it and work properly.

+

+	* CONTRIBUTORS: Add contributors.

+

+	* ANNOUNCE: Updated.

+

+	* README: Updated.

+

+2000-08-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* pthread.h: Remove #warning - VC++ doesn't accept it.

+

+2000-08-05  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* pthread.h (PtW32CatchAll): Add macro. When compiling

+	applications using VC++ with C++ EH rather than SEH

+	'PtW32CatchAll' must be used in place of any 'catch( ... )'

+	if the application wants pthread cancelation or

+	pthread_exit() to work.

+

+2000-08-03  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* pthread.h: Add a base class ptw32_exception for

+	library internal exceptions and change the "catch"

+	re-define macro to use it.

+

+2000-08-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* GNUmakefile (CFLAGS): Add -mthreads.

+	Add new targets to generate cpp and asm output.

+

+	* sync.c (pthread_join): Remove dead code.

+

+2000-07-25  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* sched.c (sched_get_priority_max): Handle different WinCE and

+	Win32 priority values together.

+	(sched_get_priority_min): Ditto.

+	- Tristan Savatier <tristan@mpegtv.com>

+

+	* create.c (pthread_create): Force new threads to wait until

+	pthread_create has the new thread's handle; we also retain

+	a local copy of the handle for internal use until

+	pthread_create returns.

+

+	* private.c (ptw32_threadStart): Initialise ei[].

+	(ptw32_threadStart): When beginthread is used to start the

+	thread, force waiting until the creator thread had the 

+	thread handle.

+

+	* cancel.c (ptw32_cancel_thread): Include context switch

+	code for defined(_X86_) environments in addition to _M_IX86.

+

+	* rwlock.c (pthread_rwlock_destroy): Assignment changed

+	to avoid compiler warning.

+

+	* private.c (ptw32_get_exception_services_code): Cast

+	NULL return value to avoid compiler warning.

+

+	* cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable

+	to avoid compiler warnings.

+

+	* misc.c (ptw32_new): Change "new" variable to "t" to avoid

+	confusion with the C++ keyword of the same name.

+

+	* condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.

+	(cond_timedwait): Remove unused local variables. to avoid

+	compiler warnings.

+

+	* dll.c (dllMain): Remove 2000-07-21 change - problem

+	appears to be in pthread_create().

+

+2000-07-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* tsd.c (pthread_key_create): If a destructor was given

+	and the pthread_mutex_init failed, then would try to

+	reference a NULL pointer (*key); eliminate this section of

+	code by using a dynamically initialised mutex

+	(PTHREAD_MUTEX_INITIALIZER).

+

+	* tsd.c (pthread_setspecific): Return an error if

+	unable to set the value; simplify cryptic conditional.

+

+	* tsd.c (pthread_key_delete): Locking threadsLock relied

+	on mutex_lock returning an error if the key has no destructor.

+	ThreadsLock is only initialised if the key has a destructor.

+	Making this mutex a static could reduce the number of mutexes

+	used by an application since it is actually created only at

+	first use and it's often destroyed soon after.

+	

+2000-07-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* FAQ: Added Q5 and Q6.

+

+2000-07-21  Ross Johnson  <rpj@setup1.ise.canberra.edu.au>

+

+	* create.c (pthread_create): Set threadH to 0 (zero)

+	everywhere. Some assignments were using NULL. Maybe

+	it should be NULL everywhere - need to check. (I know

+	they are nearly always the same thing - but not by

+	definition.)

+

+	* dll.c: Include resource leakage work-around. This is a

+	partial FIXME which doesn't stop all leakage. The real

+	problem needs to be found and fixed.

+	- "David Baggett" <dmb@itasoftware.com>

+

+	* misc.c (pthread_self): Try to catch NULL thread handles

+	at the point where they might be generated, even though

+	they should always be valid at this point.

+

+	* tsd.c (pthread_setspecific): return an error value if

+	pthread_self() returns NULL.

+

+	* sync.c (pthread_join): return an error value if

+	pthread_self() returns NULL.

+

+	* signal.c (pthread_sigmask): return an error value if

+	pthread_self() returns NULL.

+

+2000-03-02  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* attr.c (pthread_attr_init): Set default stacksize to zero (0)

+	rather than PTHREAD_STACK_MIN even though these are now the same.

+

+	* pthread.h (PTHREAD_STACK_MIN): Lowered to 0.

+

+2000-01-28  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* mutex.c (pthread_mutex_init): Free mutex if it has been alloced;

+	if critical sections can be used instead of Win32 mutexes, test

+	that the critical section works and return an error if not.

+

+2000-01-07  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not

+	compiling as C++.

+	(pthread_push_cleanup): Include SEH code only if MSC is not

+	compiling as C++.

+

+	* pthread.h: Include SEH code only if MSC is not

+	compiling as C++.

+

+	* implement.h: Include SEH code only if MSC is not

+	compiling as C++.

+

+	* cancel.c (ptw32_cancel_thread): Add _M_IX86 check.

+	(pthread_testcancel): Include SEH code only if MSC is not

+	compiling as C++.

+	(ptw32_cancel_self): Include SEH code only if MSC is not

+	compiling as C++.

+

+2000-01-06  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* Makefile: Remove inconsistencies in 'cl' args

+	- Erik Hensema <erik.hensema@group2000.nl>

+

+2000-01-04  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* private.c (ptw32_get_exception_services_code): New; returns

+	value of EXCEPTION_PTW32_SERVICES.

+	(ptw32_processInitialize): Remove initialisation of

+	ptw32_exception_services which is no longer needed.

+

+	* pthread.h (ptw32_exception_services): Remove extern.

+	(ptw32_get_exception_services_code): Add function prototype;

+	use this to return EXCEPTION_PTW32_SERVICES value instead of

+	using the ptw32_exception_services variable which I had

+	trouble exporting through pthread.def.

+

+	* global.c (ptw32_exception_services): Remove declaration.

+

+1999-11-22  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* implement.h: Forward declare ptw32_new();

+

+	* misc.c (ptw32_new): New; alloc and initialise a new pthread_t.

+	(pthread_self): New thread struct is generated 	by new routine

+	ptw32_new().

+

+	* create.c (pthread_create): New thread struct is generated

+	by new routine ptw32_new().

+

+1999-11-21  Ross Johnson  <rpj@special.ise.canberra.edu.au>

+

+	* global.c (ptw32_exception_services): Declare new variable. 

+

+	* private.c (ptw32_threadStart): Destroy thread's

+	cancelLock mutex; make 'catch' and '__except' usageimmune to

+	redfinitions in pthread.h.

+	(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.

+

+	* 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.

+	- Jason Nye <jnye@nbnet.nb.ca>

+	- Erik Hensema <erik.hensema@group2000.nl>

+

+1999-11-13  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* configure.in (AC_OUTPUT): Put generated output into GNUmakefile

+	rather than Makefile. Makefile will become the MSC nmake compatible

+	version

+	- Erik Hensema <erik.hensema@group2000.nl>

+

+	* misc.c (pthread_self): Add a note about GetCurrentThread

+	returning a pseudo-handle

+	- John Bossom (John.Bossom@cognos.com>

+

+1999-11-10  Ross Johnson  <rpj@ixobrychus.canberra.edu.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.

+	- Todd Owen <towen@lucidcalm.dropbear.id.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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* 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.

+	- Tristan Savatier <tristan@mpegtv.com>

+

+1999-10-30  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* 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:

+	- Erik Hensema <erik.hensema@group2000.nl>

+

+1999-10-23  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* pthread.h (ctime_r): Fix incorrect argument "_tm"

+	- Erik Hensema <erik.hensema@group2000.nl>

+

+1999-10-21  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* 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

+	- Aurelio Medina <aureliom@crt.com>

+

+1999-10-17  Ross Johnson  <rpj@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* 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.

+	- Lorin Hochstein <lmh@xiphos.ca> and 

+	  Peter Slacik <Peter.Slacik@tatramed.sk>;

+	the last waiter will now reset the CV's wasBroadcast flag

+	- Graham Dumpleton <Graham.Dumpleton@ra.pad.otc.telstra.com.au>.

+

+Thu Sep 16 1999  Ross Johnson  <rpj@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.

+

+Sat Sep 10 12:56:13 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	The following code for POSIX read/write locks was contributed

+	by Aurelio Medina.

+

+	* 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.

+

+Wed Sep  8 12:56:13 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* mutex.c (pthread_mutex_destroy): Free mutex memory.

+	- Milan Gardian <mg@tatramed.sk>

+

+1999-08-22  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* exit.c (pthread_exit): Fix reference to potentially

+	uninitialised pointer.

+

+1999-08-21  Ross Johnson  <rpj@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@ixobrychus.canberra.edu.au>

+

+	* private.c (ptw32_threadStart): Return exit status from

+	the application thread startup routine.

+	- Milan Gardian <mg@tatramed.sk>

+

+1999-08-18  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* exit.c (pthread_exit): Put status into pthread_t->exitStatus

+	- John Bossom <john.Bossom@cognos.com>

+	* private.c (ptw32_threadStart): Set pthread->exitStatus

+	on exit of try{} block.

+	- John Bossom <john.Bossom@cognos.com>

+	* 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).

+	- John Bossom <john.Bossom@cognos.com>

+

+Tue Aug 17 20:17:58 CDT 1999  Mumit Khan  <khan@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@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@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* 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.

+	- Peter Slacik <Peter.Slacik@tatramed.sk>

+

+1999-07-09  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	The following changes fix a bug identified by

+	Lorin Hochstein <lmh@xiphos.ca> and solved by

+	John Bossom <John.Bossom@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.

+

+

+	* 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@ixobrychus.canberra.edu.au>

+

+	* semaphore.h (mode_t): Conditionally typedef it.

+

+Fri May 28 13:33:05 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* condvar.c (pthread_cond_broadcast): Fix possible memory fault

+	- Mark E. Armstrong <avail@pacbell.net>

+	

+Thu May 27 13:08:46 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* condvar.c (pthread_cond_broadcast): Fix logic bug

+	- Peter Slacik <Peter.Slacik@tatramed.sk>;

+	optimise sem_post loop

+	- Bossom, John <John.Bossom@Cognos.COM>.

+

+Fri May 14 12:13:18 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* attr.c (pthread_attr_setdetachstate): Fix logic bug

+	- Mike Russo <miker@eai.com>.

+

+Sat May  8 09:42:30 1999  Ross Johnson  <rpj@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@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@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@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@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@ixobrychus.canberra.edu.au>

+

+	* Makefile.in (OBJS): Add errno.o.

+

+Fri Apr  2 11:08:50 1999  Ross Johnson  <rpj@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.

+

+	* pthread.h (ptw32_sem_t): Change to sem_t. 

+

+	* semaphore.c (ptw32_sem_*): Change to sem_*; these functions

+	will be exported from the library; set errno on error.

+	- John Bossom <jebossom@cognos.com>

+	(ptw32_sem_timedwait): Moved to private.c.

+

+	* private.c (ptw32_sem_timedwait): Moved from semaphore.c;

+	set errno on error.

+

+	* errno.c (_errno): New file. New function.

+	- John Bossom

+

+	* pthread.h (pthread_t_): Add per-thread errno element.

+

+Fri Mar 26 14:11:45 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* semaphore.c (ptw32_sem_timedwait): Check for negative

+	milliseconds.

+	- Tor Lillqvist <tml@iki.fi>

+

+Wed Mar 24 11:32:07 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* misc.c (CancelableWait): Initialise exceptionInformation[2].

+	(pthread_self): Get a real Win32 thread handle for implicit threads.

+	- John Bossom <jebossom@cognos.com>

+

+	* cancel.c (pthread_testcancel): Initialise exceptionInformation[2].

+	- John Bossom <jebossom@cognos.com>

+

+	* implement.h (SE_INFORMATION): Fix values.

+	- John Bossom <jebossom@cognos.com>

+

+	* private.c (ptw32_threadDestroy): Close the thread handle.

+	- John Bossom <jebossom@cognos.com>

+

+Fri Mar 19 12:57:27 1999  Ross Johnson  <rpj@swan.canberra.edu.au>

+

+	* cancel.c (comments): Update and cleanup.

+

+Fri Mar 19 09:12:59 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.

+

+	* pthread.h (PTHREAD_CANCELED): defined.

+

+Tue Mar 16  1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* all: Add GNU LGPL and Copyright and Warranty.

+	

+Mon Mar 15 00:20:13 1999  Ross Johnson  <rpj@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@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@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@ixobrychus.canberra.edu.au>

+

+	* misc.c (CancelableWait): Undo changes from Mar 8 and 7.

+

+Mon Mar  8 11:18:59 1999  Ross Johnson  <rpj@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@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@ixobrychus.canberra.edu.au>

+

+	* implement.h: Undate comments.

+

+Sun Feb 21 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around

+	cs element initialiser.

+

+1999-02-21  Ben Elliston  <bje@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@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@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@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@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@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@ixobrychus.canberra.edu.au>

+

+	* configure: Various temporary changes.

+	- Kevin Ruland <Kevin.Ruland@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@swan.canberra.edu.au>

+

+	* semaphore.c: Comment format changes.

+

+Thu Feb  4 10:07:28 1999  Ross Johnson  <rpj@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@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@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@swan.canberra.edu.au>

+

+	* implement.h: Add #include <pthread.h>.

+	Change sem_t to ptw32_sem_t.

+

+	Various patches by Kevin Ruland <Kevin.Ruland@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@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@ixobrychus.canberra.edu.au>

+

+	* semaphore.c (sem_wait): Remove second arg to 

+	pthreadCancelableWait() call.

+

+Sat Jan 23 17:36:40 1999  Ross Johnson  <rpj@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@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@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@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.

+

+	* 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().

+	- Scott Lightner <scott@curriculum.com>

+

+Tue Jan 19 10:27:39 1999  Ross Johnson  <rpj@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@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@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@ixobrychus.canberra.edu.au>

+

+	* condvar.c (cond_timedwait): Remove comment.

+

+Fri Jan 15 15:41:28 1999  Ross Johnson  <rpj@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@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@ixobrychus.canberra.edu.au>

+

+	* build.bat: Delete old binaries before compiling/linking.

+

+Tue Jan 12 09:58:38 1999  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* dll.c: The Microsoft compiler pragmas probably are more

+	appropriately protected by _MSC_VER than by _WIN32.

+	- Tor Lillqvist <tml@iki.fi>.

+

+	* condvar.c (pthread_cond_timedwait): Fix function description

+	comments.

+

+	* 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.

+	- Tor Lillqvist <tml@iki.fi>.

+

+	* pthread.def: pthread_mutex_destroy was missing from the def file

+	- Tor Lillqvist <tml@iki.fi>.

+

+	* 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.

+	- Tor Lillqvist <tml@iki.fi>. 

+

+	* semaphore.c (sem_post): Correct typo in comment.

+

+Mon Jan 11 20:33:19 1999  Ross Johnson  <rpj@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  Ben Elliston  <bje@cygnus.com>

+

+	* condvar.c (pthread_cond_init): Invert logic when testing the

+	return value from calloc().

+	- Tor Lillqvist <tml@iki.fi>.

+

+Sat Jan  9 14:32:08 1999  Ross Johnson  <rpj@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@hem2.passagen.se>.

+

+Tue Jan  5 16:33:04 1999  Ross Johnson  <rpj@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@toilet.to.cygnus.com>

+

+	* README: Update info about subscribing to the mailing list.

+

+Mon Jan  4 11:23:40 1999  Ross Johnson  <rpj@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* semaphore.c: Initial version. From John Bossom's implementation.

+	* semaphore.h: Initial version. From John Bossom's implementation.

+

+Mon Dec 28 09:54:39 1998  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.

+

+	* attr.c (pthread_attr_setstacksize): Merge with John Bossom's version.

+	(pthread_attr_getstacksize): Merge with John Bossom's version.

+	(pthread_attr_setstackaddr): Merge with John Bossom's version.

+	(pthread_attr_getstackaddr): Merge with John Bossom's version.

+	(pthread_attr_init): Merge with John Bossom's version.

+	(pthread_attr_destroy): Merge with John Bossom's version.

+	(pthread_attr_getdetachstate): Merge with John Bossom's version.

+	(pthread_attr_setdetachstate): Merge with John Bossom's version.

+	(is_attr): attr is now **attr (was *attr), so add extra NULL pointer

+	test.

+

+	* 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@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@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  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* cancel.c (pthread_setcancelstate): Replaced by John Bossom's version.

+	(pthread_setcanceltype): Replaced by John Bossom's version.

+	(pthread_testcancel): Replaced by John Bossom's version.

+	(pthread_cancel): Replaced by John Bossom's version.

+	

+	* exit.c (pthread_exit): Replaced by John Bossom's version.

+

+	* misc.c (pthread_self): Replaced by John Bossom's version.

+	(pthread_equal): Replaced by John Bossom's version.

+

+	* sync.c (pthread_detach): Replaced by John Bossom's version.

+	(pthread_join): Replaced by John Bossom's version.

+

+	* create.c (pthread_create): Replaced by John Bossom's version.

+

+	* private.c (ptw32_processInitialize): New by John Bossom.

+	(ptw32_processTerminate): Non-public function by John Bossom.

+	(ptw32_threadStart): Non-public function by John Bossom.

+ 	(ptw32_threadDestroy): Non-public function by John Bossom.

+	(ptw32_cleanupStack): Non-public function by John Bossom.

+	(ptw32_tkAssocCreate): Non-public function by John Bossom.

+	(ptw32_tkAssocDestroy): Non-public function by John Bossom.

+	(ptw32_callUserDestroyRoutines): Non-public function by John Bossom.

+

+	* implement.h: Added John Bossom's non-API structures and

+	declarations.

+

+	* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress

+	to resolve compile warning from MSVC.

+

+	* dll.c (DLLmain): Replaced by John Bossom's version.

+	* 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@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@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@ise.canberra.edu.au>

+

+	* README: Correct cygwin32 compatibility statement.

+

+Sun Nov 15 21:24:06 1998  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

+

+	* cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.

+	Fixup CVS merge conflicts.

+

+1998-10-30  Ben Elliston  <bje@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@swan.canberra.edu.au>

+

+	* cleanup.c (ptw32_handler_push): Fixed bug appending new

+	handler to list reported by Peter Slacik

+	<Peter.Slacik@leibinger.freinet.de>.

+	(new_thread): Rename poorly named local variable to

+	"new_handler".

+

+Sat Oct 24 18:34:59 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@ixobrychus.canberra.edu.au>

+

+	* pthread.def: New file for building the DLL.

+

+1998-10-05  Ben Elliston  <bje@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@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@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@cygnus.com>

+

+	* COPYING: Remove.

+

+	* COPYING.LIB: Add. This library is under the LGPL.

+

+1998-09-13  Ben Elliston  <bje@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@cygnus.com>

+

+	* windows.h: No longer needed; remove.

+

+	* windows.c: Likewise.

+

+Sat Sep 12 20:09:24 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@cygnus.com>

+

+	* fork.c (fork): Autoconfiscate.

+

+Sat Jul 25 00:00:13 1998  Ross Johnson  <rpj@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@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@ixobrychus.canberra.edu.au>

+

+	* implement.h: Preliminary implementation specific defines.

+

+	* create.c (pthread_create): Preliminary implementation.

+

+1998-07-11  Ben Elliston  <bje@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@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@cygnus.com>

+

+	* create.c (pthread_create): A dummy stub right now.

+

+	* pthread.h (pthread_create): Add function prototype.

diff --git a/semaphore.c b/semaphore.c
index f2210d4..8819df1 100644
--- a/semaphore.c
+++ b/semaphore.c
@@ -498,7 +498,6 @@ sem_post_multiple (sem_t * sem, int count )
     {
       result = EINVAL;
     }
-  else
 
 #ifdef NEED_SEM
 
diff --git a/tests/benchtest1.c b/tests/benchtest1.c
index 8514fa4..1859b69 100644
--- a/tests/benchtest1.c
+++ b/tests/benchtest1.c
@@ -73,7 +73,7 @@ main (int argc, char *argv[])
   pthread_mutexattr_init(&ma);
 
   printf( "========================================================================\n");
-  printf( "\nNon-blocking mutex lock plus unlock.\n%ld iterations\n\n",
+  printf( "\nLock plus unlock on an unlocked mutex.\n%ld iterations\n\n",
           ITERATIONS);
   printf( "%-40s %15s %15s\n",
 	    "Test",
diff --git a/tests/benchtest2.c b/tests/benchtest2.c
index a049961..b3fc9eb 100644
--- a/tests/benchtest2.c
+++ b/tests/benchtest2.c
@@ -147,7 +147,7 @@ main (int argc, char *argv[])
   assert(pthread_mutexattr_init(&ma) == 0);
 
   printf( "========================================================================\n");
-  printf( "\nBlocking mutex lock plus unlock.\n");
+  printf( "\nLock plus unlock on an unlocked mutex.\n");
   printf("%ld iterations, four locks/unlocks per iteration.\n\n", ITERATIONS);
 
   printf( "%-40s %15s %15s\n",