Bug 45044

Summary:	pa_mainloop should report POLLNVAL when that occurs with IO events
Product:	PulseAudio	Reporter:	Tanu Kaskinen <tanuk>
Component:	core	Assignee:	pulseaudio-bugs
Status:	RESOLVED MOVED	QA Contact:	pulseaudio-bugs
Severity:	normal
Priority:	medium	CC:	lennart
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Tanu Kaskinen 2012-01-21 10:05:03 UTC

poll() may return POLLNVAL in revents, but pa_mainloop ignores that. According to "man poll", POLLNVAL signals an "invalid request: fd not open (output only)". I'm not sure how that should be interpreted: if we never call poll() on an fd that we have closed ourselves, is it guaranteed that POLLNVAL will never occur? If so, we could have an assertion for that in map_flags_from_libc(). Or probably not: pa_mainloop can also be used by clients, and they may not be as careful with their file descriptors.

As proposed by Arun, I think we should add PA_IO_EVENT_INVALID to pa_io_event_flags_t.

Discussion:
http://lists.freedesktop.org/archives/pulseaudio-discuss/2011-December/012517.html

Comment 1 GitLab Migration User 2018-07-30 09:54:05 UTC

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