David Herrmann
fcb6bf43a4
Set errno and return -1 in public API calls like all other weston code does. Most systemd+dbus calls return negative error-codes instead of -1 and setting errno. Thus, we need to explicitly set errno before returning. Also note that we must set errno _after_ the cleanup path. Calling functions like close() in the cleanup path might overwrite errno (which is not what we want). So protect errno until the final return -1;
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 buiding weston and its dependencies.