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Fix CPU hog with combination of rate plugin

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Fix CPU hog with some apps (e.g. artsd) when rate plugin is used
together with dmix (or possible hw).
This commit is contained in:
Takashi Iwai 2005-04-22 16:36:13 +00:00
parent 56b3974439
commit 467d69c5bc
3 changed files with 55 additions and 69 deletions
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6
src/pcm/pcm_direct.c
View file

@ -447,7 +447,7 @@ int snd_pcm_direct_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned in
events = pfds[0].revents;
if (events & POLLIN) {
snd_pcm_uframes_t avail;
int empty = 0;
int empty;
snd_pcm_avail_update(pcm);
if (pcm->stream == SND_PCM_STREAM_PLAYBACK) {
events |= POLLOUT;
@ -457,10 +457,10 @@ int snd_pcm_direct_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned in
avail = snd_pcm_mmap_capture_avail(pcm);
}
empty = avail < pcm->avail_min;
if (empty)
if (empty) {
snd_pcm_direct_clear_timer_queue(dmix);
if (empty)
events &= ~(POLLOUT|POLLIN);
}
}
switch (snd_pcm_state(dmix->spcm)) {
case SND_PCM_STATE_XRUN: