GMainLoop 동작방식

출처:https://developer.gnome.org/glib/unstable/glib-The-Main-Event-Loop.html

The GMainLoop data type represents a main event loop. 

A GMainLoop is created with g_main_loop_new(). After adding the initial event sources, g_main_loop_run() is called. This continuously checks for new events from each of the event sources and dispatches them. Finally, the processing of an event from one of the sources leads to a call to g_main_loop_quit() to exit the main loop, andg_main_loop_run() returns.