/**
* Unblocks Java thread that monitors specified event queue.
*
* @param queueId queue ID
*/
static void unblockMonitorThread(jint queueId) {
EventQueue* pEventQueue;
jint isolateId;
JVMSPI_ThreadID thread;
GET_EVENT_QUEUE_BY_ID(pEventQueue, queueId);
if (IS_ISOLATE_QUEUE(queueId)) {
/*
* 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.
*/
isolateId = QUEUE_ID_TO_ISOLATE_ID(queueId);
thread = SNI_GetSpecialThread(isolateId);
if (thread != NULL) {
midp_thread_unblock(thread);
} else {
REPORT_CRIT(LC_CORE,
"StoreMIDPEventInVmThread: cannot find "
"native event monitor thread");
}
} else {
/* Unblock thread in the normal (slower) way */
midp_thread_signal(EVENT_QUEUE_SIGNAL, queueId, 0);
}
pEventQueue->isMonitorBlocked = KNI_FALSE;
}
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();
}
