GskControlServer a simple mechanism for handling control connections This provides a simple server that can be used from the gsk-control-client for runtime manipulation. You can register data and commands that the client will be able to invoke. GskControlClient, gsk-control-client. Opaque class which acts as a database of virtual files and commands. Add a command to the server. @server: the server which should understand the command. @command_name: the name of the command. @func: the function to invoke to handle the command. @data: the data to pass to the function invocation. @server: @path: @error: @Returns: @server: @address: @error: @Returns: @Returns: @server: @path: @content: @content_length: @error: @Returns: