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SDL Wiki


Unlock the mutex.


int SDL_UnlockMutex(SDL_mutex * mutex);

Function Parameters


the mutex to unlock.

Return Value

Returns 0, or -1 on error.


It is legal for the owning thread to lock an already-locked mutex. It must unlock it the same number of times before it is actually made available for other threads in the system (this is known as a "recursive mutex").

It is an error to unlock a mutex that has not been locked by the current thread, and doing so results in undefined behavior.

It is also an error to unlock a mutex that isn't locked at all.

Code Examples

<<Include(SDL_CreateMutex, , , from="## Begin Mutex Example", to="## End Mutex Example")>>

CategoryAPI, CategoryMutex

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