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pcm: improve handling for snd_pcm_wait()

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The snd_pcm_wait() function is called also internally from
the various plugins to wait for the drain with -1 and from i/o
routines in pcm.c.

Define two special negative timeout values to distinguish the
drain and i/o wait and calculate the maximal timeout according
the wait place.

Fixes: https://github.com/alsa-project/alsa-lib/issues/228
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2023-05-02 16:56:49 +02:00
parent 1de6f99c7d
commit e2d9e41174
9 changed files with 55 additions and 10 deletions
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2
src/pcm/pcm_share.c
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@ -1194,7 +1194,7 @@ static int snd_pcm_share_drain(snd_pcm_t *pcm)
_snd_pcm_share_update(pcm);
Pthread_mutex_unlock(&slave->mutex);
if (!(pcm->mode & SND_PCM_NONBLOCK))
snd_pcm_wait(pcm, -1);
snd_pcm_wait(pcm, SND_PCM_WAIT_DRAIN);
return 0;
default:
assert(0);