Fix issues on win32 with multithreading.

We weren't properly rechecking based on spurious wakeups (which
technically can happen on x64 too.)

Core/ThreadEventQueue.h

@@ -75,9 +75,13 @@ struct ThreadEventQueue : public B {
 		eventsHaveRun_ = true;
 
 		do {
-			if (!HasEvents()) {
+			while (!HasEvents() && !ShouldExitEventLoop() && threadEnabled_) {
 				eventsWait_.wait(eventsLock_);
 			}
+			// Quit the loop if the queue is drained and coreState has tripped, or threading is disabled.
+			if (!HasEvents()) {
+				break;
+			}
 
 			for (Event ev = GetNextEvent(); EventType(ev) != EVENT_INVALID; ev = GetNextEvent()) {
 				eventsLock_.unlock();
@@ -95,11 +99,6 @@ struct ThreadEventQueue : public B {
 				}
 				eventsLock_.lock();
 			}
-
-			// Quit the loop if the queue is drained and coreState has tripped, or threading is disabled.
-			if (ShouldExitEventLoop() || !threadEnabled_) {
-				break;
-			}
 		} while (CoreTiming::GetTicks() < globalticks);
 
 		// This will force the waiter to check coreState, even if we didn't actually drain.