Re: NSSound Reimplementation

[Wolfgang Lux]

Stefan Bidigaray wrote:

> I tried setting waitUntilDone to YES, still no luck!  The - 
> _finished method still doesn't get called when calling - 
> performSelectorOnMainThread:..., for now I've just made that a - 
> performSelector:withObject:, which works, but is not what I want  
> done.  I guess my next question here is: is - 
> performSelectorOnMainThread:withObject:waitUntilDone: working?   
> Maybe I built -base incorrectly?

I don't think so. The problem with - 
performSelectorOnMainThread:withObject:waitUntilDone: is that the  
call is only scheduled to be executed by the run loop of the main  
thread. Thus, the call will not be executed before the next event is  
received or the next timer expires on the main thread. This is indeed  
different from Mac OS X, where the scheduled call seems to be  
executed immediately if the run loop is idle. As a workaround, you  
could schedule a timer that regularly invokes an empty method in your  
NSSound class on the main thread, e.g.,
  [NSTimer scheduledTimerWithTimeInterval: 1.0
                                   target: self
                                 selector: @selector(_heartBeat:)
                                 userInfo: nil
                                  repeats: YES];
and
  - (void)_heartBeat:(NSTimer *) { }

Wolfgang