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Fix underflow detection for alsa 

The old method always returned _RUNNING on some machines.
This new method seems to produce the expected behaviour.

Note: -32 is probably -EPIPE, but the appropriate constant was not
available at this time.
This commit is contained in:
Mathijs van de Nes 2016-02-28 17:01:13 +01:00
parent 8544a1dc55
commit f3f194293a
1 changed files with 2 additions and 2 deletions
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4
src/alsa/mod.rs
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@ -317,8 +317,8 @@ impl Voice {
pub fn underflowed(&self) -> bool { pub fn underflowed(&self) -> bool {
let channel = self.channel.lock().expect("channel underflow"); let channel = self.channel.lock().expect("channel underflow");
let state = unsafe { alsa::snd_pcm_state(*channel) }; let available = unsafe { alsa::snd_pcm_avail(*channel) };
state == alsa::SND_PCM_STATE_XRUN available == -32
} }
} }