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* pthread.h: Conditionally added some #defines from config.h
needed when not building the library. e.g. NEED_ERRNO, NEED_SEM.
(PTW32_DLLPORT): Now only defined if _DLL defined.
(_errno): Compiler directive was incorrectly including prototype.
* sched.h: Conditionally added some #defines from config.h
needed when not building the library.
* semaphore.h: Replace an instance of NEED_SEM that should
have been NEED_ERRNO. This change currently has nil effect.
* GNUmakefile: Correct some recent changes.
* Makefile: Add rule to generate pre-processor output.
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critical section to solve deadlock problem.
* pthread.c: Add all remaining C modules.
* pthread.h: Use dllexport/dllimport attributes on functions
to avoid using pthread.def.
* sched.h: Likewise.
* semaphore.h: Likewise.
* GNUmakefile: Add new targets for single translation
unit build to maximise inlining potential; generate
pthread.def automatically.
* Makefile: Likewise, but no longer uses pthread.def.
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to disable cancelation at the start of a thread's cancelation
run to prevent double cancelation. The main problem
arises if a thread is canceling and then receives a subsequent
async cancel request.
* private.c: Likewise.
* condvar.c: Place pragmas around cleanup_push/pop to turn
off inline optimisation (/Obn where n>0 - MSVC only). Various
optimisation switches in MSVC turn this on, which interferes with
the way that cleanup handlers are run in C++ EH and SEH
code. Application code compiled with inline optimisation must
also wrap cleanup_push/pop blocks with the pragmas, e.g.
#pragma inline_depth(0)
pthread_cleanup_push(...)
...
pthread_cleanup_pop(...)
#pragma inline_depth(8)
* rwlock.c: Likewise.
* mutex.c: Remove attempts to inline some functions.
* signal.c: Modify misleading comment.
tests/
* mutex8: New test.
* mutex8n: New test.
* mutex8e: New test.
* mutex8r: New test.
* cancel6a: New test.
* cancel6d: New test.
* cleanup0.c: Add pragmas for inline optimisation control.
* cleanup1.c: Add pragmas for inline optimisation control.
* cleanup2.c: Add pragmas for inline optimisation control.
* cleanup3.c: Add pragmas for inline optimisation control.
* condvar7.c: Add pragmas for inline optimisation control.
* condvar8.c: Add pragmas for inline optimisation control.
* condvar9.c: Add pragmas for inline optimisation control.
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* mutex.c (pthread_mutex_timedlock): New function suggested by
Alexander Terekhov. The logic required to implement this
properly came from Alexander, with some collaboration
with Thomas Pfaff.
(pthread_mutex_unlock): Wrap the waiters check and sema
post in a critical section to prevent a race with
pthread_mutex_timedlock.
(ptw32_timed_semwait): New function;
returns a special result if the absolute timeout parameter
represents a time already passed when called; used by
pthread_mutex_timedwait(). Have deliberately not reused
the name "ptw32_sem_timedwait" because they are not the same
routine.
* condvar.c (ptw32_cond_timedwait): Use the new sem_timedwait()
instead of ptw32_sem_timedwait(), which now has a different
function. See previous.
* implement.h: Remove prototype for ptw32_sem_timedwait.
See next.
(pthread_mutex_t_): Add critical section element for access
to lock_idx during mutex post-timeout processing.
* semaphore.h (sem_timedwait): See next.
* semaphore.c (sem_timedwait): See next.
* private.c (ptw32_sem_timedwait): Move to semaphore.c
and rename as sem_timedwait().
2002-01-18 Ross Johnson <rpj@special.ise.canberra.edu.au>
* sync.c (pthread_join): Was getting the exit code from the
calling thread rather than the joined thread if
defined(__MINGW32__) && !defined(__MSVCRT__).
2002-01-15 Ross Johnson <rpj@special.ise.canberra.edu.au>
* pthread.h: Unless the build explicitly defines __CLEANUP_SEH,
__CLEANUP_CXX, or __CLEANUP_C, then the build defaults to
__CLEANUP_C style cleanup. This style uses setjmp/longjmp
in the cancelation and thread exit implementations and therefore
won't do stack unwinding if linked to applications that have it
(e.g. C++ apps). This is currently consistent with most/all
commercial Unix POSIX threads implementations.
* spin.c (pthread_spin_init): Edit renamed function call.
* nonportable.c (pthread_num_processors_np): New.
(pthread_getprocessors_np): Renamed to ptw32_getprocessors
and moved to private.c.
* private.c (pthread_getprocessors): Moved here from
nonportable.c.
* pthread.def (pthread_getprocessors_np): Removed
from export list.
* rwlock.c (pthread_rwlockattr_init): New.
(pthread_rwlockattr_destroy): New.
(pthread_rwlockattr_getpshared): New.
(pthread_rwlockattr_setpshared): New.
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section calls.
(pthread_mutex_destroy): Likewise.
(pthread_mutex_unlock): Likewise.
(pthread_mutex_trylock): Likewise; recursive mutexes
now increment the lock count rather than return EBUSY;
errorcheck mutexes return EDEADLCK rather than
EBUSY. This behaviour is consistent with the Solaris
pthreads implementation.
* implement.h (pthread_mutex_t_): Remove critical
section element - no longer needed.
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checking and actually store the scope value even
though it's not really necessary.
(pthread_attr_getscope): Return stored value.
* implement.h (pthread_attr_t_): Add new scope element.
* ANNOUNCE: Fix out of date comment next to
pthread_attr_setscope in conformance section.
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a cancelation point; re-enable deferred cancelability
around the CV call.
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* spin.c: New module implementing spin locks.
* barrier.c: New module implementing barriers.
* pthread.h (_POSIX_SPIN_LOCKS): defined.
(_POSIX_BARRIERS): Defined.
(pthread_spin_*): Defined.
(pthread_barrier*): Defined.
(PTHREAD_BARRIER_SERIAL_THREAD): Defined.
* implement.h (pthread_spinlock_t_): Defined.
(pthread_barrier_t_): Defined.
(pthread_barrierattr_t_): Defined.
* mutex.c (pthread_mutex_lock): Return with the error
if an auto-initialiser initialisation fails.
* nonportable.c (pthread_getprocessors_np): New; gets the
number of available processors for the current process.
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Update ANNOUNCE to get ready for new snapshot.
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