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Core Wayland window system code and protocol
5ec8062df2
To fix a shutdown crash in weston's x11 compositor I want to move the weston X window close to an idle handler. Since idle handlers are processed at the start of an event loop, the handler that deals with window close will run at the start of the next input_loop dispatch, after which the dispatcher blocks on epoll forever (since all input events that will ever occur have been consumed). Dispatching idle callbacks both at the start and end of event-loop processing will prevent this permanent blocking. Note that just moving the callback dispatch could theoretically result in an idle callback being delayed indefinitely while waiting for epoll_wait() to complete. Callbacks are removed from the list when they're run, so the second dispatch won't result in any extra calls. Signed-off-by: Derek Foreman <derekf@osg.samsung.com> Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com> Reviewed-by: Bryce Harrington <bryce@osg.samsung.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.