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fixed bug with dynamic poll stall;

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This commit is contained in:
Alexander Vdolainen 2015-04-02 17:07:37 +03:00
parent d90a188e78
commit 5e1068290c
1 changed files with 13 additions and 2 deletions
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15
lib/queue.c
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@ -261,7 +261,7 @@ static void *__poll_thread(void *poll)
case USR_MSG:
/* schedule new task for poll - increase or decrease */
pthread_rwlock_rdlock(&(p->stats_lock));
if(pth_queue_length(p->queue) > p->sleep_value) {
if((pth_queue_length(p->queue) + 1 /* since we take a job */) >= p->sleep_value) {
memset(&sysbuf, 0, sizeof(pth_msg_t));
pth_queue_add(p->queue, &sysbuf, POLL_INCREASE);
} else if((pth_queue_length(p->queue) > p->sleep_value) && (p->sleep_value > 1)) {
@ -274,7 +274,7 @@ static void *__poll_thread(void *poll)
break;
case POLL_DECREASE:
pthread_rwlock_rdlock(&(p->stats_lock));
if(p->poll_value > 1) r = 1; /* exit now */
if(p->poll_value > 2) r = 1; /* exit now */
pthread_rwlock_unlock(&(p->stats_lock));
if(r) {
pthread_rwlock_wrlock(&(p->stats_lock));
@ -356,6 +356,17 @@ int pth_dqtpoll_init(pth_dqtpoll_t *tpoll, int (*jobdata_callback)(void *))
ndata->myid = 0;
ndata->pthrd = tpoll;
if(pthread_create(&(poll[0]), NULL, __poll_thread, ndata)) {
__eadd:
pthread_rwlock_destroy(&(tpoll->stats_lock));
goto __enomem;
}
/* second thread initiation */
ndata = malloc(sizeof(struct __pthrd_data));
if(!ndata) goto __eadd;
idx_reserve(idx, 1);
ndata->myid = 1;
ndata->pthrd = tpoll;
if(pthread_create(&(poll[1]), NULL, __poll_thread, ndata)) {
pthread_rwlock_destroy(&(tpoll->stats_lock));
goto __enomem;
}