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ce13a1dbbf
Back when we had RAC this was a vaguely meaningful thing. Since then it's been a glorified (and confusing) wrapper around xf86BlockSIGIO. Note that the APM and VT switch code are unusual relative to other code that cares about SIGIO state. Most callers push a SIGIO disable to create a critical section for the duration of the caller's stack frame, but those two effectively disable SIGIO after their return and re-enable on their next entry. Reviewed-by: Tiago Vignatti <tigo.vignatti@nokia.com> Signed-off-by: Adam Jackson <ajax@redhat.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