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_thr_ucond_wait drops lock, we should pick it up again.

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This commit is contained in:
David Xu 2006-12-05 23:46:11 +00:00
parent 3f61998e1c
commit a8a343d2e6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=164927
1 changed files with 1 additions and 0 deletions
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lib/libthr/thread/thr_barrier.c
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@ -103,6 +103,7 @@ _pthread_barrier_wait(pthread_barrier_t *barrier)
cycle = bar->b_cycle;
do {
_thr_ucond_wait(&bar->b_cv, &bar->b_lock, NULL, 0);
THR_UMUTEX_LOCK(curthread, &bar->b_lock);
/* test cycle to avoid bogus wakeup */
} while (cycle == bar->b_cycle);
THR_UMUTEX_UNLOCK(curthread, &bar->b_lock);