Function SDL_TryLockRWLockForReading 

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

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

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

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

Trying to lock for read-only access can succeed if other threads are holding read-only locks, as this won’t prevent access.

This function returns true if passed a NULL rwlock.

Parameters

• rwlock: the rwlock to try to lock.

Return value

Returns true on success, false if the lock would block.

Thread safety

It is safe to call this function from any thread.

Availability

This function is available since SDL 3.2.0.

See also

• SDL_LockRWLockForReading
• SDL_TryLockRWLockForWriting
• SDL_UnlockRWLock