input/plugins/Alsa: catch all exceptions #1906
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snd_pcm_poll_descriptors_revents() may return any error code; the ALSA docs do not constrain the permitted values. A 'hw' device will only ever return an error if the pfd array passed in is invalid (-EINVAL), but other I/O plugins may return arbitary errors. For example a network-based device may return -EPIPE etc. The resulting exception thrown by AlsaNonBlockPcm::DispatchSockets() must be caught to prevent the mpd process from being aborted.
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snd_pcm_poll_descriptors_revents() may return any error code; the ALSA docs do not constrain the permitted values. A 'hw' device will only ever return an error if the pfd array passed in is invalid (-EINVAL), but other I/O plugins may return arbitary errors. For example a network-based device may return -EPIPE etc. The resulting exception thrown by
AlsaNonBlockPcm::DispatchSockets() must be caught to prevent the mpd process from being aborted.