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source: OpenPNE/branches/ebihara/prj_pnebiz/lib/include/PHP/Compat/Function/time_sleep_until.php @ 557

Last change on this file since 557 was 557, checked in by ebihara, 14 years ago

create prj_pnebiz

File size: 1.9 KB
Line 
1<?php
2// +----------------------------------------------------------------------+
3// | PHP Version 4                                                        |
4// +----------------------------------------------------------------------+
5// | Copyright (c) 1997-2004 The PHP Group                                |
6// +----------------------------------------------------------------------+
7// | This source file is subject to version 3.0 of the PHP license,       |
8// | that is bundled with this package in the file LICENSE, and is        |
9// | available at through the world-wide-web at                           |
10// | http://www.php.net/license/3_0.txt.                                  |
11// | If you did not receive a copy of the PHP license and are unable to   |
12// | obtain it through the world-wide-web, please send a note to          |
13// | license@php.net so we can mail you a copy immediately.               |
14// +----------------------------------------------------------------------+
15// | Authors: Arpad Ray <arpad@php.net>                                   |
16// +----------------------------------------------------------------------+
17//
18// $Id: time_sleep_until.php,v 1.2 2005/12/07 21:08:57 aidan Exp $
19
20
21/**
22 * Replace time_sleep_until()
23 *
24 * @category    PHP
25 * @package     PHP_Compat
26 * @link        http://php.net/time_sleep_until
27 * @author      Arpad Ray <arpad@php.net>
28 * @version     $Revision: 1.2 $
29 * @since       PHP 5.1.0
30 * @require     PHP 4.0.1 (trigger_error)
31 */
32if (!function_exists('time_sleep_until')) {
33    function time_sleep_until($timestamp)
34    {
35            list($usec, $sec) = explode(' ', microtime());
36        $now = $sec + $usec;
37        if ($timestamp <= $now) {
38            user_error('Specified timestamp is in the past', E_USER_WARNING);
39            return false;
40        }
41
42        $diff = $timestamp - $now;
43        usleep($diff * 1000000);
44        return true;
45    }
46}
47       
48?>
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