Unlock the read/write lock.
void SDL_UnlockRWLock(SDL_RWLock *rwlock) SDL_RELEASE_GENERIC(rwlock);
|rwlock||the rwlock to unlock.|
Use this function to unlock the rwlock, whether it was locked for read-only or write operations.
It is legal for the owning thread to lock an already-locked read-only lock. 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 rwlock").
It is illegal to unlock a rwlock that has not been locked by the current thread, and doing so results in undefined behavior.
This function is available since SDL 3.0.0.