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Invalidating work after longpoll made hash_pop return no work giving a false positive for dead pool.

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Rework hash_pop to retry while finds no staged work until the abstime timeout really expires.
This commit is contained in:
Con Kolivas 2012-01-17 17:38:59 +11:00
parent 4cf433c917
commit 12afb479d3
1 changed files with 10 additions and 18 deletions
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28
main.c
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@ -4087,31 +4087,23 @@ static bool queue_request(struct thr_info *thr, bool needed)
return true;
}
struct work *hash_pop(const struct timespec *abstime)
static struct work *hash_pop(const struct timespec *abstime)
{
struct work *work = NULL;
int rc;
int rc = 0;
mutex_lock(stgd_lock);
if (HASH_COUNT(staged_work))
goto pop;
if (abstime)
while (!getq->frozen && !HASH_COUNT(staged_work) && !rc)
rc = pthread_cond_timedwait(&getq->cond, stgd_lock, abstime);
else
rc = pthread_cond_wait(&getq->cond, stgd_lock);
if (rc)
goto out;
if (!HASH_COUNT(staged_work))
goto out;
pop:
work = staged_work;
HASH_DEL(staged_work, work);
if (work->clone)
--staged_clones;
out:
if (HASH_COUNT(staged_work)) {
work = staged_work;
HASH_DEL(staged_work, work);
if (work->clone)
--staged_clones;
}
mutex_unlock(stgd_lock);
return work;
}