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Core Wayland window system code and protocol
0f23b73a06
If for some reason that errno is neither value (ENOMEM or EINVAL), then prior to this patch, there would be a NULL deref in wl_closure_lookup(...) at the "else if" conditional when closure == NULL. Also, closure might not be NULL but still fall into the block due to the wl_closure_lookup < 0 condition... in that case, we need to destroy the closure to avoid a memory leak. Currently, wl_connection_demarshal only sets errno to ENOMEM or EINVAL... we've already checked for ENOMEM so remove check for EINVAL (just assume it). Also, call wl_closure_destroy(...) unconditionally in the "else if" block (assume it can handle NULL closure, too, which it does right now). Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com> |
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| doc | ||
| m4 | ||
| protocol | ||
| spec | ||
| src | ||
| tests | ||
| .gitignore | ||
| autogen.sh | ||
| configure.ac | ||
| COPYING | ||
| Makefile.am | ||
| README | ||
| TODO | ||
| wayland-scanner.m4 | ||
| wayland-scanner.mk | ||
What is Wayland
Wayland is a project to define a protocol for a compositor to talk to
its clients as well as a library implementation of the protocol. The
compositor can be a standalone display server running on Linux kernel
modesetting and evdev input devices, an X application, or a wayland
client itself. The clients can be traditional applications, X servers
(rootless or fullscreen) or other display servers.
The wayland protocol is essentially only about input handling and
buffer management. The compositor receives input events and forwards
them to the relevant client. The clients creates buffers and renders
into them and notifies the compositor when it needs to redraw. The
protocol also handles drag and drop, selections, window management and
other interactions that must go through the compositor. However, the
protocol does not handle rendering, which is one of the features that
makes wayland so simple. All clients are expected to handle rendering
themselves, typically through cairo or OpenGL.
The weston compositor is a reference implementation of a wayland
compositor and the weston repository also includes a few example
clients.
Building the wayland libraries is fairly simple, aside from libffi,
they don't have many dependencies:
$ git clone git://anongit.freedesktop.org/wayland/wayland
$ cd wayland
$ ./autogen.sh --prefix=PREFIX
$ make
$ make install
where PREFIX is where you want to install the libraries. See
http://wayland.freedesktop.org for more complete build instructions
for wayland, weston, xwayland and various toolkits.