Function SDL_TryLockRWLockForWriting 

pub unsafe extern "C" fn SDL_TryLockRWLockForWriting(
    rwlock: *mut SDL_RWLock,
) -> bool

Try to lock a read/write lock for writing without blocking.

This works just like SDL_LockRWLockForWriting(), but if the rwlock is not available, then this function returns false immediately.

This technique is useful if you need exclusive access to a resource but don’t want to wait for it, and will return to it to try again later.

It is illegal for the owning thread to lock an already-locked rwlock for writing (read-only may be locked recursively, writing can not). Doing so results in undefined behavior.

It is illegal to request a write lock from a thread that already holds a read-only lock. Doing so results in undefined behavior. Unlock the read-only lock before requesting a write lock.

This function returns true if passed a NULL rwlock.

Parameter: rwlock the rwlock to try to lock. Returns: true on success, false if the lock would block.

Thread Safety: It is safe to call this function from any thread.

Available Since: This function is available since SDL 3.2.0.

See Also: SDL_LockRWLockForWriting See Also: SDL_TryLockRWLockForReading See Also: SDL_UnlockRWLock