There is no technical reason why xcb_get_setup() and xcb_get_file_descriptor() shouldn't work on non-static error connections. They cannot be used for many useful things, but at least they work. This works around bugs in lots of programs out there which assume that xcb_get_setup() does not return NULL and which just happily dereference the results. Since xcb_connect() never returns NULL, it's a bit weird that xcb_get_setup() can do so. xcb_get_file_descriptor() is just modified since this can be done here equally easily and because the fd isn't closed until the final xcb_disconnect() on the error connection. Non-static error connections are connections which entered an error state after xcb_connect() succeeded. If something goes wrong in establishing a connection, xcb_connect() will return a static error connection which doesn't have the fields used here. Signed-off-by: Uli Schlachter <psychon@znc.in> |
||
---|---|---|
doc | ||
m4 | ||
man | ||
src | ||
tests | ||
tools | ||
.autom4te.cfg | ||
.gitignore | ||
COPYING | ||
Makefile.am | ||
NEWS | ||
README | ||
autogen.sh | ||
check-pc-requires | ||
configure.ac | ||
xcb-composite.pc.in | ||
xcb-damage.pc.in | ||
xcb-dpms.pc.in | ||
xcb-dri2.pc.in | ||
xcb-dri3.pc.in | ||
xcb-glx.pc.in | ||
xcb-present.pc.in | ||
xcb-randr.pc.in | ||
xcb-record.pc.in | ||
xcb-render.pc.in | ||
xcb-res.pc.in | ||
xcb-screensaver.pc.in | ||
xcb-shape.pc.in | ||
xcb-shm.pc.in | ||
xcb-sync.pc.in | ||
xcb-xevie.pc.in | ||
xcb-xf86dri.pc.in | ||
xcb-xfixes.pc.in | ||
xcb-xinerama.pc.in | ||
xcb-xinput.pc.in | ||
xcb-xkb.pc.in | ||
xcb-xprint.pc.in | ||
xcb-xselinux.pc.in | ||
xcb-xtest.pc.in | ||
xcb-xv.pc.in | ||
xcb-xvmc.pc.in | ||
xcb.pc.in |
About libxcb ============ libxcb provides an interface to the X Window System protocol, which replaces the current 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 can also use 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. Please report any issues you find to the freedesktop.org bug tracker, at: <https://bugs.freedesktop.org/enter_bug.cgi?product=XCB> Discussion about XCB occurs on the XCB mailing list: <mailto:xcb at lists.freedesktop.org> <http://lists.freedesktop.org/mailman/listinfo/xcb> You can obtain the latest development versions of XCB using GIT. For anonymous checkouts, use: git clone git://anongit.freedesktop.org/git/xcb/libxcb For developers, use: git clone git+ssh://git.freedesktop.org/git/xcb/libxcb