Limit the number of events processed by PL_ProcessPendingEvents; check in

troy@netscape.com. Bugzilla 13660.
This commit is contained in:
srinivas%netscape.com 1999-09-20 02:11:10 +00:00
Родитель ab55f42520
Коммит f8307a0a1f
1 изменённых файлов: 34 добавлений и 2 удалений

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@ -338,7 +338,9 @@ PL_GetEvent(PLEventQueue* self)
return NULL;
mon = self->monitor;
PR_EnterMonitor(mon);
if (mon) {
PR_EnterMonitor(mon);
}
if ( self->type == EventQueueIsNative )
err = _pl_AcknowledgeNativeNotify(self);
@ -352,7 +354,9 @@ PL_GetEvent(PLEventQueue* self)
}
done:
PR_ExitMonitor(mon);
if (mon) {
PR_ExitMonitor(mon);
}
return event;
}
@ -462,6 +466,7 @@ PL_ProcessPendingEvents(PLEventQueue* self)
if (PR_FALSE != self->processingEvents) return;
self->processingEvents = PR_TRUE;
#if 0
while (PR_TRUE) {
PLEvent* event = PL_GetEvent(self);
if (event == NULL) break;
@ -470,6 +475,33 @@ PL_ProcessPendingEvents(PLEventQueue* self)
PL_HandleEvent(event);
PR_LOG(event_lm, PR_LOG_DEBUG, ("$$$ done processing event"));
}
#else
/* Only process the events that are already in the queue, and
* not any new events that get added. Do this by making a copy of
* the queue
*/
PR_EnterMonitor(self->monitor);
if (PR_CLIST_IS_EMPTY(&self->queue)) {
PR_ExitMonitor(self->monitor);
} else {
struct PLEventQueue tmpQueue;
/* Copy the events to a temporary queue */
memcpy(&tmpQueue, self, sizeof(tmpQueue));
tmpQueue.queue.next->prev = &tmpQueue.queue;
tmpQueue.queue.prev->next = &tmpQueue.queue;
tmpQueue.monitor = 0; /* don't waste time locking this queue when getting events */
PR_INIT_CLIST(&self->queue);
PR_ExitMonitor(self->monitor);
/* Now process the existing events */
while (PR_TRUE) {
PLEvent* event = PL_GetEvent(&tmpQueue);
if (event == NULL) break;
PR_LOG(event_lm, PR_LOG_DEBUG, ("$$$ processing event"));
PL_HandleEvent(event);
PR_LOG(event_lm, PR_LOG_DEBUG, ("$$$ done processing event"));
}
}
#endif
self->processingEvents = PR_FALSE;
}