/**
* Helper function used by StoreMIDPEventInVmThread. Enqueues an event
* to be processed by the Java event thread for a given event queue.
*
* @param event the event to enqueue
* @queueID ID of the queue to enqueue event from
*/
static void StoreMIDPEventInVmThreadImp(MidpEvent event, jint queueId) {
EventQueue* pEventQueue;
GET_EVENT_QUEUE_BY_ID(pEventQueue, queueId);
midp_logThreadId("StoreMIDPEventInVmThread");
midp_waitAndLockEventQueue();
if (pEventQueue->numEvents != MAX_EVENTS) {
pEventQueue->events[pEventQueue->eventIn] = event;
pEventQueue->eventIn++;
if (pEventQueue->eventIn == MAX_EVENTS) {
/* This is a circular queue, so start back at zero. */
pEventQueue->eventIn = 0;
}
pEventQueue->numEvents++;
if (pEventQueue->isMonitorBlocked) {
unblockMonitorThread(queueId);
}
} else {
/*
* Ignore the event; there is no space to store it.
* IMPL NOTE: this should be fixed, or it should be a fatal error;
* dropping an event can lead to a full system deadlock.
*/
REPORT_CRIT1(LC_CORE,"**event queue %d full, dropping event",
queueId);
}
midp_unlockEventQueue();
#if ENABLE_EVENT_SPYING
if (queueId != gsEventSpyingQueueId) {
GET_EVENT_QUEUE_BY_ID(pEventQueue, gsEventSpyingQueueId);
if (pEventQueue->isActive && event.type != EVENT_QUEUE_SHUTDOWN) {
if (0 == duplicateMIDPEventFields(&event)) {
StoreMIDPEventInVmThreadImp(event, gsEventSpyingQueueId);
} else {
REPORT_CRIT(LC_CORE,
"StoreMIDPEventInVmThread: Out of memory.");
return;
}
}
}
#endif
}
static void StoreMIDPEventInVmThreadImp(MidpEvent event, int isolateId) {
EventQueue* pEventQueue;
JVMSPI_ThreadID thread;
pEventQueue = getIsolateEventQueue(isolateId);
midp_logThreadId("StoreMIDPEventInVmThread");
midp_waitAndLockEventQueue();
if (pEventQueue->numEvents != MAX_EVENTS) {
pEventQueue->events[pEventQueue->eventIn] = event;
pEventQueue->eventIn++;
if (pEventQueue->eventIn == MAX_EVENTS) {
/* This is a circular queue, so start back at zero. */
pEventQueue->eventIn = 0;
}
pEventQueue->numEvents++;
if (pEventQueue->isMonitorBlocked) {
/*
* The event monitor thread has been saved as the "special" thread
* of this particular isolate in order to avoid having to search
* the entire list of threads.
*/
thread = SNI_GetSpecialThread(isolateId);
if (thread != NULL) {
midp_thread_unblock(thread);
pEventQueue->isMonitorBlocked = KNI_FALSE;
} else {
REPORT_CRIT(LC_CORE,
"StoreMIDPEventInVmThread: cannot find "
"native event monitor thread");
}
}
} else {
/*
* Ignore the event; there is no space to store it.
* IMPL NOTE: this should be fixed, or it should be a fatal error;
* dropping an event can lead to a full system deadlock.
*/
REPORT_CRIT1(LC_CORE,"**event queue %d full, dropping event",
isolateId);
}
midp_unlockEventQueue();
}
