protected function acquireMutex()
    {
        $this->mutex = Instance::ensure($this->mutex, Mutex::className());
        return $this->mutex->acquire($this->composeMutexName());
    }
protected function acquireMutex()
    {
        $this->mutex = Instance::ensure($this->mutex, Mutex::className());
        return $this->mutex->acquire($this->composeMutexName());
    }
protected function acquireMutex ( ) { $ this -> mutex = Instance :: ensure ( $ this -> mutex , Mutex :: className ( ) ) ; return $ this -> mutex -> acquire ( $ this -> composeMutexName ( ) ) ; }
Acquires current action lock.
@return boolean lock acquiring result.
Acquires current action lock .