It seems like POLLIN is specified as equivalent to POLLRDNORM | POLLRDBAND. Some systems (e.g. QNX and HP-UX) take this literaly and have POLLIN defined as the above bit combination. Other systems (e.g. Linux) have POLLIN as just a single bit. This means that if no out-of-band data is available (which should never be the case), the result of poll() will not fulfil (fd.revents & POLLIN) == POLLIN on QNX, because the POLLRDBAND bit is not set. In other words, even though poll() signaled that the fd is readable, xcb would not read from the file descriptor. Fix this by checking if any bits from POLLIN are set in the result of poll(), instead of all of them. (This change was independently done by seanb@qnx.com as well) Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=38001 Acked-by: Julien Cristau <jcristau@debian.org> Signed-off-by: Uli Schlachter <psychon@znc.in> |
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doc | ||
m4 | ||
src | ||
tests | ||
tools | ||
.autom4te.cfg | ||
.gitignore | ||
COPYING | ||
INSTALL | ||
Makefile.am | ||
NEWS | ||
README | ||
autogen.sh | ||
configure.ac | ||
xcb-composite.pc.in | ||
xcb-damage.pc.in | ||
xcb-dpms.pc.in | ||
xcb-dri2.pc.in | ||
xcb-glx.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