Thursday, September 6, 2012

[android-developers] Re: AudioTrack: thread safety of operations?

Tamás Kovács wrote:
The documentation says that AudioTrack.write() is thread-safe in terms of stop().

What about the other operations? As far as I can see, e.g. play() and pause() should also be callable from another thread.

write() is blocking, so it does not make much sense to call pause() from the same thread as write().

Is it OK to use an own thread for write() and using the other operations (stop, pause, play) from a different thread?

Nearly always, absence of a promise of thread safety is equivalent to a promise of thread unsafety.

This is more likely given the care to specify that 'write()' "is thread safe with respect to stop() calls
specifically. IOW, if it was thread safe for other calls they'd've said so.

We go by the docs, too, so we're unlikely to give you a different answer than the Javadocs do.

-- 
Lew

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