mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-01 22:58:49 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

A next try to fix the snd_pcm_wait() behaviour with direct plugins

Browse source
This commit is contained in:
Jaroslav Kysela 2004-03-24 08:50:01 +00:00
parent f2175f1384
commit f5a5284c6d
2 changed files with 17 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

25
src/pcm/pcm.c
View file

@ -2082,20 +2082,10 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
}
err = snd_pcm_poll_descriptors(pcm, &pfd, 1);
assert(err == 1);
__retry:
err_poll = poll(&pfd, 1, timeout);
if (err_poll < 0)
return -errno;
#if 0 /* very useful code to test poll related problems */
{
snd_pcm_sframes_t delay, avail_update;
snd_pcm_hwsync(pcm);
avail_update = snd_pcm_avail_update(pcm);
if (avail_update < pcm->avail_min) {
printf("*** snd_pcm_wait() FATAL ERROR!!!\n");
printf("avail_min = %li, avail_update = %li\n", pcm->avail_min, avail_update);
}
}
#endif
err = snd_pcm_poll_descriptors_revents(pcm, &pfd, 1, &revents);
if (err < 0)
return err;
@ -2112,6 +2102,19 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
return -EIO;
}
}
if ((revents & (POLLIN | POLLOUT)) == 0)
goto __retry;
#if 0 /* very useful code to test poll related problems */
{
snd_pcm_sframes_t avail_update;
snd_pcm_hwsync(pcm);
avail_update = snd_pcm_avail_update(pcm);
if (avail_update < (snd_pcm_sframes_t)pcm->avail_min) {
printf("*** snd_pcm_wait() FATAL ERROR!!!\n");
printf("avail_min = %li, avail_update = %li\n", pcm->avail_min, avail_update);
}
}
#endif
return err_poll > 0 ? 1 : 0;
}