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