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Enhanced snd_pcm_wait

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Jaroslav Kysela 2001-11-14 08:58:25 +00:00
parent df4a432789
commit 169c36213d
1 changed files with 4 additions and 2 deletions
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6
src/pcm/pcm.c
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@ -1176,7 +1176,9 @@ int snd_pcm_open_slave(snd_pcm_t **pcmp, snd_config_t *root,
* \brief Wait for a PCM to become ready * \brief Wait for a PCM to become ready
* \param pcm PCM handle * \param pcm PCM handle
* \param timeout maximum time in milliseconds to wait * \param timeout maximum time in milliseconds to wait
* \return 0 on success otherwise a negative error code * \return a positive value on success otherwise a negative error code
* \retval 0 timeout occured
* \retval 1 PCM stream is ready for I/O
*/ */
int snd_pcm_wait(snd_pcm_t *pcm, int timeout) int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
{ {
@ -1187,7 +1189,7 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
err = poll(&pfd, 1, timeout); err = poll(&pfd, 1, timeout);
if (err < 0) if (err < 0)
return -errno; return -errno;
return 0; return err > 0 ? 1 : 0;
} }
/** /**