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A ClutterTimeoutPool is a source for the GLib main loop which pools multiple timeout functions. The pool is always sorted so that the first timeout to expire is also the first element of the pool; hence, extraction is a constant time operation. This also makes the usage of multiple timeouts at the same priority not compete for a timeslice of the main loop, leading to starvation.
Clutter README. =============== Clutter aims to give a nice easy GObject based API for creating fast, mainly 2D single window stylalised applications such as media box UI's, presentaions, kiosk style apps etc. It uses OpenGL for rendering. Its not meant to be a full featured GUI toolkit for regular desktop apps nor provide a general interface to *all* openGL functionality. It currently uses fairly low end GL functionality with an aim to still work well on open source graphics drivers as well as possibly making an eventual GL ES port feasable. Clutter currently requires GLib >= 2.8, GdkPixbuf and OpenGL >= 1.2. Its also recommended you have some kind of working hardware OpenGL on your target system. Clutter is LGPL licensed. If you want to hack on and improve clutter check the TODO file.