EVOLUTION-NINJA

Edit File: 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:
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

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;
}