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It is redundant to check x*alloc's return value for null pointers, since they are guaranteed to either return non-NULL or terminate the program. In cases where we memset the malloc'd memory to 0, we can more efficiently use the xzalloc() routine. zalloc looks for opportunities to return memory chunks that have already been zero'd out, so it can provide better performance. This patch addresses this warning, reported by Denis Denisov: [clients/window.c:1164] -> [clients/window.c:1166]: (warning) Possible null pointer dereference: surface - otherwise it is redundant to check it against null. [clients/window.c:4513] -> [clients/window.c:4514]: (warning) Possible null pointer dereference: surface - otherwise it is redundant to check it against null. Signed-off-by: Bryce Harrington <bryce@osg.samsung.com> Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
Weston Weston is the reference implementation of a Wayland compositor, and a useful compositor in its own right. Weston has various backends that lets it run on Linux kernel modesetting and evdev input as well as under X11. Weston ships with a few example clients, from simple clients that demonstrate certain aspects of the protocol to more complete clients and a simplistic toolkit. There is also a quite capable terminal emulator (weston-terminal) and an toy/example desktop shell. Finally, weston also provides integration with the Xorg server and can pull X clients into the Wayland desktop and act as a X window manager. Refer to http://wayland.freedesktop.org/building.html for building weston and its dependencies. The test suite can be invoked via `make check`; see http://wayland.freedesktop.org/testing.html for additional details.