mirror of
https://github.com/X11Libre/xserver.git
synced 2026-03-26 01:49:01 +00:00
9ddbb03fa5
If both devices are synchronously grabbed, first with a GrabPointer, then with a GrabKeyboard (GrabModeSync on both), sync.other of each device points to the grab of the respective other device. If the keyboard is then thawed through a AllowSome request, the VCK's sync.other is reset to NULL. Subsequently, an event on the VCP would crash the server when dereferencing sync.other on the VCP. The check's purpose is to compare if the other device is grabbed by the same client, which should be checked by accessing (dev->deviceGrab->grab->resource). A check of the server-1.3 sources confirms that. XTS test case: Xlib13 XAllowEvents 20. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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