mirror of
https://github.com/genodelabs/genode.git
synced 2025-03-22 12:06:00 +00:00
d22cddd1e8
This patch changes nitpicker's way of redrawing. Originally, redraw operations were triggered immediately by the RPC functions invoked by clients. In the presence of clients that invoked a large number of those functions, the server could become overloaded with processing redraw operations. The new version performs redraw operations out of band with the RPC functions. Similar to the design of the DOpE GUI server, redraw operations are processed periodically. The RPC functions merely modify meta data and track the dirty areas that need to be updated. Consequently, nitpicker's RPC functions become light-weight operations. As a nice collateral effect of this patch, nitpicker's internal structure could be simplified because the drawing backend is no longer needed by the code that dispatches the RPC interface.
This is the example operating system based on the Genode OS framework: :_Init_: is the first real process in the system. The provided implementation uses a very simple XML parser to read its configuration files. :_Drivers_: The example OS has basic drivers for frame buffer, mouse and keyboard input, the PCI bus, the real-time clock, and system-specific timers. :_Server_: The only server in the example OS is Nitpicker, a minimal-complexity GUI server. :_Test_: are also part of the example OS. You may have a look at the fork bomb as a simple system stress test. :_Ldso_: is the dynamic linker used for loading executables that are linked against shared libraries. :_Lib_: contains libraries used by the components of the OS repository, in particular the device-driver kit, the alarm framework, and support for dynamic linking.