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Swoole\Coroutine\Lock::unlock — Release the lock
With io_uring futex: the system will precisely wake up one coroutine in the waiting queue.
Without io_uring futex: waiting coroutines need to wait for their backoff time to end and compete to reacquire the lock.
Cette fonction ne contient aucun paramètre.
Returns true if the lock was released successfully,
false otherwise.