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Add poll_descriptors and poll_descriptors_count callbacks

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Added poll_descriptors and poll_descriptors_count callbacks for multiple
poll_fd's.
This commit is contained in:
Takashi Iwai 2005-05-18 10:45:06 +00:00
parent cf4f4bc9c4
commit 842b573424
19 changed files with 74 additions and 1 deletions
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6
src/pcm/pcm.c
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@ -1273,7 +1273,9 @@ int snd_pcm_unlink(snd_pcm_t *pcm)
int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm)
{
assert(pcm);
return 1;
if (pcm->ops->poll_descriptors_count)
return pcm->ops->poll_descriptors_count(pcm->op_arg);
return pcm->poll_fd_count;
}
@ -1306,6 +1308,8 @@ int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int s
int err;
assert(pcm && pfds);
if (pcm->ops->poll_descriptors)
return pcm->ops->poll_descriptors(pcm->op_arg, pfds, space);
if (pcm->fast_ops->poll_ask) {
err = pcm->fast_ops->poll_ask(pcm->fast_op_arg);
if (err < 0)