Basic Dispatch Sync

dispatch_sync_example

@implementation ThreadyMcThreaderson
{
	dispatch_queue_t _syncQueue;
}

- (id)init
{
	self = [super init];
	if (self)
	{
		_syncQueue = dispatch_queue_create("com.doug.syncygoodness", 0);
	}
	return self;
}

- (void)dealloc
{
	dispatch_release(_syncQueue);
#if !__has_feature(objc_arc)
	[super dealloc];
#endif
}

- (void)doSomethingSyncy
{
	// You could
	@synchronized(self)
	{
		
	}
	// But you should
	dispatch_sync(_syncQueue, ^(void) {
		// This is your critical section
	}
}

@end