Mercurial > sdl-ios-xcode
view src/events/SDL_sysevents.h @ 5113:481dabb098ef
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
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 27 Jan 2011 14:45:06 -0800 |
parents | c2539ff054c8 |
children | b530ef003506 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is SDL_free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "../video/SDL_sysvideo.h" /* Useful functions and variables from SDL_sysevents.c */ #ifdef __BEOS__ /* The Be event loop runs in a separate thread */ #define MUST_THREAD_EVENTS #endif #ifdef __WIN32__ /* Windows doesn't allow a separate event thread */ #define CANT_THREAD_EVENTS #endif /* vi: set ts=4 sw=4 expandtab: */