Author: davidxu
Date: Mon Mar 17 02:10:45 2014
New Revision: 263255
URL: http://svnweb.freebsd.org/changeset/base/263255
Log:
MFC r263107:
To avoid missing a chance to cancel thread, call _pthread_testcancel at the
beginning of _sem_timedwait.
Submitted by: Eric van Gyzen < eric at vangyzen dot net >
Modified:
stable/9/lib/libc/gen/sem_new.c
Directory Properties:
stable/9/ (props changed)
stable/9/lib/ (props changed)
stable/9/lib/libc/ (props changed)
Modified: stable/9/lib/libc/gen/sem_new.c
==============================================================================
--- stable/9/lib/libc/gen/sem_new.c Sun Mar 16 22:56:22 2014
(r263254)
+++ stable/9/lib/libc/gen/sem_new.c Mon Mar 17 02:10:45 2014
(r263255)
@@ -393,6 +393,7 @@ _sem_timedwait(sem_t * __restrict sem,
return (-1);
retval = 0;
+ _pthread_testcancel();
for (;;) {
while ((val = sem->_kern._count) > 0) {
if (atomic_cmpset_acq_int(&sem->_kern._count, val, val
- 1))
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