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C interface to the X Window System protocol, which replaces the traditional Xlib interface.
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Python 42.2%
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Ran Benita dc28118747 Avoid request counter truncation in replies map after 2**32 requests 
The c->in request counters are uint64_t, and can realistically go over
2**32 over a lifetime of a client. The c->in->replies map however uses
unsigned int keys and the passed request numbers are silently truncated.

I haven't analyzed in depth what happens what it wraps around but it's
probably nothing good.

The only user of the xcb_list.c map code is c->in->replies, so just
change it to use uint64_t keys.

Reviewed-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Ran Benita <ran@unusedvar.com>
 		2021-09-30 17:22:06 +00:00
doc Fix typos & awkward wording in tutorial 2014-07-11 20:41:15 -07:00
m4 config: issue an error if DRI3 is requested, but sendfds is not available 2014-08-06 13:26:08 +02:00
man Escape \n to display properly in xcb-requests man page 2015-04-29 23:23:05 -07:00
src Avoid request counter truncation in replies map after 2**32 requests 2021-09-30 17:22:06 +00:00
tests tests: don't use deprecated fail_unless check API 2020-11-18 23:06:05 -05:00
tools Match only XCB-namespaced XID generators when converting to xcb_generate_id. 2006-10-15 12:34:30 -07:00
.autom4te.cfg Use build-aux as autom4te cache directory 2013-08-15 00:35:07 +02:00
.gitignore gitignore: add files generated by make check 2020-11-18 23:06:32 -05:00
COPYING Fix the year in COPYING. 2006-04-27 17:32:20 -07:00
Makefile.am Add README.md to EXTRA_DIST 2019-02-17 12:23:17 -08:00
NEWS Release libxcb 1.14 2020-02-22 12:20:08 -08:00
README.md Update README for gitlab migration 2019-02-16 13:41:28 -08:00
autogen.sh autogen.sh: Implement GNOME Build API 2013-01-16 13:20:49 -05:00
check-pc-requires Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
configure.ac tests: don't use deprecated fail_unless check API 2020-11-18 23:06:05 -05:00
xcb-composite.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-damage.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-dpms.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-dri2.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-dri3.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-ge.pc.in optionally build the GE extension 2017-03-11 10:51:33 +01:00
xcb-glx.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-present.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-randr.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-record.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-render.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-res.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-screensaver.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-shape.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-shm.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-sync.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xevie.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xf86dri.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xfixes.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xinerama.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xinput.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xkb.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xprint.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xselinux.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xtest.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xv.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb-xvmc.pc.in Move internal/private dependencies to Requires.private 2014-10-03 23:53:54 +02:00
xcb.pc.in Store xcbproto version libxcb was compiled with 2009-05-25 12:20:23 +02:00

README.md

About libxcb

libxcb provides an interface to the X Window System protocol, which replaces the traditional Xlib interface. It has several advantages over Xlib, including:

  • size: small, simple library, and lower memory footprint
  • latency hiding: batch several requests and wait for the replies later
  • direct protocol access: interface and protocol correspond exactly
  • proven thread support: transparently access XCB from multiple threads
  • easy extension implementation: interfaces auto-generated from XML-XCB

Xlib also uses XCB as a transport layer, allowing software to make requests and receive responses with both, which eases porting to XCB. However, client programs, libraries, and toolkits will gain the most benefit from a native XCB port.

More information about xcb is available from our website:

https://xcb.freedesktop.org/

Please report any issues you find to the freedesktop.org bug tracker at:

https://gitlab.freedesktop.org/xorg/lib/libxcb/issues

Discussion about XCB occurs on the XCB mailing list:

https://lists.freedesktop.org/mailman/listinfo/xcb

You can obtain the latest development versions of XCB using GIT from the libxcb code repository at:

https://gitlab.freedesktop.org/xorg/lib/libxcb

For anonymous checkouts, use:

git clone https://gitlab.freedesktop.org/xorg/lib/libxcb.git

For developers, use:

git clone git@gitlab.freedesktop.org:xorg/lib/libxcb.git