name : StreamLockable.php <?php /** * Hoa * * * @license * * New BSD License * * Copyright © 2007-2017, Hoa community. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the Hoa nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ namespace Psy\Readline\Hoa; /** * Interface \Hoa\Stream\IStream\Lockable. * * Interface for lockable input/output. * * @license New BSD License */ interface StreamLockable extends IStream { /** * Acquire a shared lock (reader). * * @const int */ const LOCK_SHARED = \LOCK_SH; /** * Acquire an exclusive lock (writer). * * @const int */ const LOCK_EXCLUSIVE = \LOCK_EX; /** * Release a lock (shared or exclusive). * * @const int */ const LOCK_RELEASE = \LOCK_UN; /** * If we do not want $this->lock() to block while locking. * * @const int */ const LOCK_NO_BLOCK = \LOCK_NB; /** * Portable advisory locking. * Should take a look at stream_supports_lock(). * * @param int $operation operation, use the self::LOCK_* constants * * @return bool */ public function lock(int $operation): bool; }