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The Advanced Linux Sound Architecture (ALSA) - library
d3d42f60a6
snd_pcm_wait() & co checks the current avail value and returns immediately if it satisfies <= avail_min condition. It's good in general except for one situation: draining. When the draining is being performed in the non-blocking mode, apps are supposed to wait via poll(), typically via snd_pcm_wait(). So this ends up with the busy loop because of the immediate return from snd_pcm_wait(). A simple workaround is to put the PCM state check and ignore the avail_min condition if it's DRAINING state. The equivalent check is found in the kernel xfer code, too. Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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| alsalisp | ||
| aserver | ||
| doc | ||
| include | ||
| m4 | ||
| modules | ||
| src | ||
| test | ||
| utils | ||
| .gitignore | ||
| acinclude.m4 | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| gitcompile | ||
| INSTALL | ||
| Makefile.am | ||
| MEMORY-LEAK | ||
| NOTES | ||
| TODO | ||