/*
* Function: NewWorkQueue
*
* The queue constructor - semaphores are initialised to match
* max number of queue entries.
*
*/
WorkQueue*
NewWorkQueue()
{
WorkQueue* wq = (WorkQueue*)malloc(sizeof(WorkQueue));
if (!wq) {
queue_error("NewWorkQueue", "malloc() failed");
return wq;
}
memset(wq, 0, sizeof *wq);
InitializeCriticalSection(&wq->queueLock);
wq->workAvailable = newSemaphore(0, WORKQUEUE_SIZE);
wq->roomAvailable = newSemaphore(WORKQUEUE_SIZE, WORKQUEUE_SIZE);
/* Fail if we were unable to create any of the sync objects. */
if ( NULL == wq->workAvailable ||
NULL == wq->roomAvailable ) {
FreeWorkQueue(wq);
return NULL;
}
return wq;
}
int main() {
run_sem = newSemaphore(1);
run_queue = newQueue();
start_thread(counter);
start_thread(printCounter);
start_thread(counter2);
run();
return 0;
}
void init(void) {
bufferWrite = newSemaphore(1);
bufferNotFull = newSemaphore(8);
bufferNotEmpty = newSemaphore(0);
}
void init() {
balanceLock = newSemaphore(1);
}
