State

Returns the number of active readers only if the mutex is read-locked, otherwise null.

Returns true if there are pending readers or writers waiting to acquire the lock.

Returns true if read locks are available to be acquired.

Returns true if the mutex is read-locked and no writer is waiting.

Returns true if the mutex is unlocked.

Returns true if the mutex is write-locked.

Returns true if the mutex is read-locked or a writer is waiting to acquire the lock.

Returns the number of pending readers only if the mutex is write-locked, otherwise null.