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| author | Ulrich Drepper <drepper@redhat.com> | 2000-01-05 02:09:12 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-01-05 02:09:12 +0000 |
| commit | 1d2fc9b3c59d0e83e04139ddf633731264b76ea2 (patch) | |
| tree | c738cf2a40851dc25be2c252ba5dbb7f335b5e14 /linuxthreads/ChangeLog | |
| parent | f19f2b34439145daf300bf12789bbc61c8d4db28 (diff) | |
| download | glibc-1d2fc9b3c59d0e83e04139ddf633731264b76ea2.tar.gz glibc-1d2fc9b3c59d0e83e04139ddf633731264b76ea2.tar.xz glibc-1d2fc9b3c59d0e83e04139ddf633731264b76ea2.zip | |
Redesigned how cancellation unblocks a thread from internal cancellation points (sem_wait, pthread_join, pthread_cond_{wait,timedwait}). Cancellation won't eat a signal in any of these functions (*required* by POSIX and Single Unix Spec!).
2000-01-03 Kaz Kylheku <kaz@ashi.footprints.net>
Redesigned how cancellation unblocks a thread from internal
cancellation points (sem_wait, pthread_join,
pthread_cond_{wait,timedwait}).
Cancellation won't eat a signal in any of these functions
(*required* by POSIX and Single Unix Spec!).
* condvar.c: spontaneous wakeup on pthread_cond_timedwait won't eat a
simultaneous condition variable signal (not required by POSIX
or Single Unix Spec, but nice).
* spinlock.c: __pthread_lock queues back any received restarts
that don't belong to it instead of assuming ownership of lock
upon any restart; fastlock can no longer be acquired by two threads
simultaneously.
* restart.h: restarts queue even on kernels that don't have
queued real time signals (2.0, early 2.1), thanks to atomic counter,
avoiding a rare race condition in pthread_cond_timedwait.
Diffstat (limited to 'linuxthreads/ChangeLog')
| -rw-r--r-- | linuxthreads/ChangeLog | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index 37be0e829f..78e8552a6f 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,21 @@ +2000-01-03 Kaz Kylheku <kaz@ashi.footprints.net> + + Redesigned how cancellation unblocks a thread from internal + cancellation points (sem_wait, pthread_join, + pthread_cond_{wait,timedwait}). + Cancellation won't eat a signal in any of these functions + (*required* by POSIX and Single Unix Spec!). + * condvar.c: spontaneous wakeup on pthread_cond_timedwait won't eat a + simultaneous condition variable signal (not required by POSIX + or Single Unix Spec, but nice). + * spinlock.c: __pthread_lock queues back any received restarts + that don't belong to it instead of assuming ownership of lock + upon any restart; fastlock can no longer be acquired by two threads + simultaneously. + * restart.h: restarts queue even on kernels that don't have + queued real time signals (2.0, early 2.1), thanks to atomic counter, + avoiding a rare race condition in pthread_cond_timedwait. + 1999-12-31 Andreas Jaeger <aj@suse.de> * internals.h: Remove duplicate prototype declarations. |