[Bug 750397] CRITICAL: Race condition in GstBus

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=750397

--- Comment #49 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
(In reply to Matt Gruenke from comment #48)

> Please understand that, in spite of removing O_NONBLOCK, the intention is
> still that RELEASE_EVENT() shouldn't block for any appreciable amount of
> time.  We only avoid O_NONBLOCK to ensure the read() succeeds.

The thing is that the API specifies explicitly that it should not succeed if
there is no data to be read, as such we must not block.

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