diff options
| author | Jaroslav Kysela <perex@perex.cz> | 2013-04-08 13:28:03 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2013-04-08 13:28:03 +0200 |
| commit | e23fb2c4de29b24c28f0c609521faa28d948a05b (patch) | |
| tree | 6ba8d5d89dd8ee955f221f3ef5bf8c71c9f633d1 /include/pcm.h | |
| parent | 730c833dd8b76cc280246be698980422cb1bce47 (diff) | |
control, pcm: implement snd_ctl_abort() and snd_pcm_abort() functions
Upon an interrupt, it is necessary to abort the wait loops with the EINTR
error code. Introduce snd_*_abort() functions to handle this case.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include/pcm.h')
| -rw-r--r-- | include/pcm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/pcm.h b/include/pcm.h index 22356784..549d6292 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -314,6 +314,8 @@ typedef long snd_pcm_sframes_t; #define SND_PCM_NONBLOCK 0x00000001 /** Async notification (flag for open mode) \hideinitializer */ #define SND_PCM_ASYNC 0x00000002 +/** In an abort state (internal, not allowed for open) */ +#define SND_PCM_ABORT 0x00008000 /** Disable automatic (but not forced!) rate resamplinig */ #define SND_PCM_NO_AUTO_RESAMPLE 0x00010000 /** Disable automatic (but not forced!) channel conversion */ @@ -437,6 +439,7 @@ int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm); int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space); int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock); +static inline int snd_pcm_abort(snd_pcm_t *pcm) { return snd_pcm_nonblock(pcm, 2); } int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, snd_async_callback_t callback, void *private_data); snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler); |