BOOL UtJoin(HANDLE ThreadHandle) {
PUTHREAD Uthread = (PUTHREAD)ThreadHandle;
if (Uthread == RunningThread || !UtAlive(ThreadHandle)) return FALSE;
RunningThread->State = BLOCKED;
InsertTailList(&Uthread->Joiners, &RunningThread->Link);
UtDeactivate();
return TRUE;
}
VOID WaitLatch (PCountDownLatch CountDownLatch) {
// coloca a thread invocante em espera até que o contador interno tenha o valor zero
if (CountDownLatch->counter > 0) {
WAIT_BLOCK WaitBlock;
WaitBlock.Thread = UtSelf();
InsertTailList(&CountDownLatch->Waiters, &WaitBlock.Link);
UtDeactivate();
}
}
VOID EventWait (PEVENT Event) {
if (Event->Signaled == TRUE) {
Event->Signaled = FALSE;
} else {
WAIT_BLOCK WaitBlock;
WaitBlock.Thread = UtSelf();
InsertTailList(&Event->Waiters, &WaitBlock.Link);
UtDeactivate();
}
}
void Client(UT_ARGUMENT arg) {
int i;
long * numbers = (long *)arg;
clientStarted = true;
if ( ! serverStarted ) UtDeactivate();
for (i = 0; i < MAX_WORK; i++) {
n = numbers[i];
hasWork = true;
hasAnswer = false;
UtActivate(utServer);
if (!hasAnswer) UtDeactivate();
numbers[i] = res;
}
end = true;
hasWork = true;
UtActivate(utServer);
}
void Server(UT_ARGUMENT arg) {
serverStarted = true;
if ( clientStarted )
UtActivate(utClient);
for (;;) {
if (!hasWork) UtDeactivate();
if (end)
break;
res = factorial(n);
hasAnswer = true;
hasWork = false;
UtActivate(utClient);
}
}
