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| author | Tilghman Lesher <tilghman@meg.abyt.es> | 2009-01-12 23:45:51 +0000 |
|---|---|---|
| committer | Tilghman Lesher <tilghman@meg.abyt.es> | 2009-01-12 23:45:51 +0000 |
| commit | c02a52075cb398ffcfde203d93d7b9f3c7806851 (patch) | |
| tree | 8fe997736ff8be2210b03dc01c3ebefbfd9e7ef8 /channels/chan_alsa.c | |
| parent | 1aa7233f0c9351f9341ae5651a0ebb502bf153a9 (diff) | |
Merged revisions 167095 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r167095 | tilghman | 2008-12-31 18:01:22 -0600 (Wed, 31 Dec 2008) | 5 lines
Repeat attempts to write when we receive -EAGAIN from the driver, as detailed
in the ALSA sample code (see http://www.alsa-project.org/alsa-doc/alsa-lib/_2test_2pcm_8c-example.html#a32)
Reported by: Jerry Geis (via the -users list)
Fixed by: me (license 14)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@168526 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'channels/chan_alsa.c')
| -rw-r--r-- | channels/chan_alsa.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/channels/chan_alsa.c b/channels/chan_alsa.c index 991f2c2bb..0de290042 100644 --- a/channels/chan_alsa.c +++ b/channels/chan_alsa.c @@ -381,13 +381,17 @@ static int alsa_write(struct ast_channel *chan, struct ast_frame *f) state = snd_pcm_state(alsa.ocard); if (state == SND_PCM_STATE_XRUN) snd_pcm_prepare(alsa.ocard); - res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2); + while ((res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2)) == -EAGAIN) { + usleep(1); + } if (res == -EPIPE) { #if DEBUG ast_debug(1, "XRUN write\n"); #endif snd_pcm_prepare(alsa.ocard); - res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2); + while ((res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2)) == -EAGAIN) { + usleep(1); + } if (res != len / 2) { ast_log(LOG_ERROR, "Write error: %s\n", snd_strerror(res)); res = -1; |