The essential thing you showed in your code is that you went into a loop while
waiting for isPlaying to turn to NO, or at least never returned from your
action method back to AppKit. I don't hear you saying otherwise.
If that's what you're doing, bear in mind that other APIs (I'm thinking of
Foundation networking; I can all but guarantee that NSSound is the same) are
"supposed to run asynchronously," but that means that you can — you _must_ —
return from the event that started the network transaction, all the way back to
AppKit; and _must not_ block waiting for completion.
It's the run loop, and not your code, that detects completion. The completion
notifications will not arrive unless control returns to an AppKit/UIKit
runloop. You get the notification through the delegate method. It's not like
spawning a thread and waiting for it to clear a flag.
— F
On 22 Jul 2012, at 7:43 PM, Jay Reynolds Freeman wrote:
> The "sleep" was only for instrumentation; without the sleep and the NSLog,
> the code exhibits the problem described. And [NSSound play] is supposed to
> run asynchronously ...
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