Kristian Høgsberg
f63fab7241
A round trip is sufficient here. We need to make sure that the server has received the wl_test request and that we've received the event that the request triggers. The wl_display_roundtrip() helper does exactly that: it sends a wl_display.sync request, which will hit the server after the wl_test requests and thus the wl_callback.done event will come back after the server has seen all the previous requests and after we've handled all preceeding event.
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.