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winemac: Don't use the main dispatch queue to implement OnMainThread() for a thread with no event queue.

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The main dispatch queue is a serial queue and is a shared resource.  If we
submit a long-running task to it, then no other tasks, including those submitted
by the system frameworks, can run until it completes.
This commit is contained in:
Ken Thomases 2013-10-30 05:52:58 -05:00 committed by Alexandre Julliard
parent a5b51a766b
commit 2f68e47167
1 changed files with 31 additions and 18 deletions
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49
dlls/winemac.drv/cocoa_event.m
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@ -460,42 +460,55 @@ void OnMainThread(dispatch_block_t block)
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSMutableDictionary* threadDict = [[NSThread currentThread] threadDictionary];
WineEventQueue* queue = [threadDict objectForKey:WineEventQueueThreadDictionaryKey];
dispatch_semaphore_t semaphore;
__block BOOL finished;
if (!queue)
{
/* Fall back to synchronous dispatch without handling query events. */
dispatch_sync(dispatch_get_main_queue(), block);
[pool release];
return;
semaphore = dispatch_semaphore_create(0);
dispatch_retain(semaphore);
}
finished = FALSE;
OnMainThreadAsync(^{
block();
finished = TRUE;
[queue signalEventAvailable];
if (queue)
[queue signalEventAvailable];
else
{
dispatch_semaphore_signal(semaphore);
dispatch_release(semaphore);
}
});
while (!finished)
if (queue)
{
MacDrvEvent* macDrvEvent;
struct kevent kev;
while (!finished &&
(macDrvEvent = [queue getEventMatchingMask:event_mask_for_type(QUERY_EVENT)]))
while (!finished)
{
queue->event_handler(macDrvEvent->event);
}
MacDrvEvent* macDrvEvent;
struct kevent kev;
if (!finished)
{
[pool release];
pool = [[NSAutoreleasePool alloc] init];
while (!finished &&
(macDrvEvent = [queue getEventMatchingMask:event_mask_for_type(QUERY_EVENT)]))
{
queue->event_handler(macDrvEvent->event);
}
kevent(queue->kq, NULL, 0, &kev, 1, NULL);
if (!finished)
{
[pool release];
pool = [[NSAutoreleasePool alloc] init];
kevent(queue->kq, NULL, 0, &kev, 1, NULL);
}
}
}
else
{
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
dispatch_release(semaphore);
}
[pool release];
}