[alsa-devel] pcm write from posix threads

Brian Rhodes bgr at acdstar.com
Wed Aug 20 00:24:06 CEST 2008

When calling snd_pcm_write* from a thread how do you safely cancel the 
thread?  I've tried masking the signals which are used in alsa lib, yet 
I am getting a segfault on pthread_exit().  My thread is looping doing 
the following.


I am checking return values to handle those functions being woken up by 
pthread cancel and attempting to exit.  In testing the process it 
performs fine until I start actually writing data.  Once I write some 
data, a pthread_exit will segfault.  My cancellation routine is calling 
snd_pcm_drop, then doing a cancel followed by join.

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