Sam Lantinga 9b5a15bc30 Improved timer implementation ... The new timer model is formalized as using a separate thread to handle timer callbacks. This was the case on almost every platform before, but it's now a requirement, and simplifies the implementation and makes it perform consistently across platforms. Goals: * Minimize timer thread blocking * Dispatch timers as accurately as possible * SDL_AddTimer() and SDL_RemoveTimer() are completely threadsafe * SDL_RemoveTimer() doesn't crash with a timer that's expired or removed		2011-01-27 14:45:06 -08:00
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SDL_systimer.c	Improved timer implementation	2011-01-27 14:45:06 -08:00