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b4a08e642b
Sometimes, particularly with large clipboard pastes to Windows, we could end up waiting for the timeout to expire, rather than pasting the data. Various changes to improve reliability: 1. Use XFlush() not XSync() in winProcessXEventsTimeout(). It makes no sense to ensure we have received replies to outstanding requests if we are going to wait for them using select() 2. Add XFlush() to winClipboardProc() Make sure we have sent any requests before we wait using select() 3. Don't use FD_ISSET() to check which fd is ready This looks like a Cygwin select() bug in that it sometimes returns 0 with an empty fd set before the timeout expires, but a fd appears to be ready. Add select() return value to debug output when we are warning that this has happened. 4. Drain event queues before entering select() Unconditionally drain event queues before entering select(). This seems to be the recommended way of writing select() and X event processing loops. winClipboardFlushXEvents() checks using XPending(), and winClipboardFlushWindowsMessageQueue() checks using PeekMessage() so this is safe against blocking, but means that may not need to enter select() at all sometimes. Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk> Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
X Server
The X server accepts requests from client applications to create windows,
which are (normally rectangular) "virtual screens" that the client program
can draw into.
Windows are then composed on the actual screen by the X server
(or by a separate composite manager) as directed by the window manager,
which usually communicates with the user via graphical controls such as buttons
and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the
following article:
http://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the
Xorg mailing list:
http://lists.freedesktop.org/mailman/listinfo/xorg
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/xserver
http://cgit.freedesktop.org/xorg/xserver
For patch submission instructions, see:
http://www.x.org/wiki/Development/Documentation/SubmittingPatches
For more information on the git code manager, see:
http://wiki.x.org/wiki/GitPage