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Author SHA1 Message Date
Kenny Levinsen ca7cab1a2d wayland: Consistently use errno for errors 2020-01-14 20:06:13 +01:00
Kenny Levinsen 083b294659 wayland: Simplify dispatch_pending error handling 
wl_display_dispatch_pending does not return EAGAIN, and always sets an
error when it fails. This allows us to handle errors in a simpler
manner.
 2020-01-14 20:04:23 +01:00
Kenny Levinsen bc24716476 wayland: errno does not have to be cleared 
As long as errno is only read on error from an errno-setting function,
then there is no need to reset errno between uses.
 2020-01-14 20:04:23 +01:00
Kenny Levinsen 4acab65016 wayland: Only cancel display read after prepare success 
The display reader count only increments when wl_display_prepare_read
succeeds.  Calling wl_display_cancel_read when wl_display_prepare_read
has not succeeded results in a negative reader count, which does not
have well-defined behavior.
 2020-01-14 20:00:47 +01:00
Kenny Levinsen f6b03f106c wayland: Cancel display read before abortOnFatalError 
Calling wl_display_cancel_read immediately ensures that other readers
waiting on us will have a chance to wake up and discover the error in a
timely manner.
 2020-01-14 19:59:02 +01:00