Mercurial > sdl-ios-xcode
diff src/thread/generic/SDL_syscond.c @ 5112:0846f18eb625
Improved condition variable documentation
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 27 Jan 2011 10:40:17 -0800 |
| parents | f7b03b6838cb |
| children | b530ef003506 |
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--- a/src/thread/generic/SDL_syscond.c Thu Jan 27 10:07:14 2011 -0800 +++ b/src/thread/generic/SDL_syscond.c Thu Jan 27 10:40:17 2011 -0800 @@ -145,18 +145,19 @@ Typical use: Thread A: - SDL_LockMutex(lock); - while ( ! condition ) { - SDL_CondWait(cond); - } - SDL_UnlockMutex(lock); + SDL_LockMutex(lock); + while ( ! condition ) { + SDL_CondWait(cond, lock); + } + SDL_UnlockMutex(lock); Thread B: - SDL_LockMutex(lock); - ... - condition = true; - ... - SDL_UnlockMutex(lock); + SDL_LockMutex(lock); + ... + condition = true; + ... + SDL_CondSignal(cond); + SDL_UnlockMutex(lock); */ int SDL_CondWaitTimeout(SDL_cond * cond, SDL_mutex * mutex, Uint32 ms)