DRAFT |
SDL_mutexP
Use this function to lock the a mutex.
Syntax
int SDL_mutexP(SDL_mutex* mutex)
Function Parameters
mutex |
the mutex to lock |
Return Value
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
Code Examples
You can add your code example here
Remarks
*
SDL_mutexP() locks the mutex, which was previously created with SDL_CreateMutex(). If the mutex is already locked by another thread then SDL_mutexP() will not return until the thread that locked it unlocks it (with SDL_mutexV()). If called repeatedly on a mutex, SDL_mutexV() must be called an equal amount number of times to return the mutex to the/an unlocked state.
SDL also defines a macro #define SDL_LockMutex(m) SDL_mutexP(m).
*
-or-
SDL_mutexP(m) and SDL_LockMutex(m) are equivalent.
-or- The macro SDL_LockMutex(m) will call SDL_mutexP(m).
green
