<?php 
 
/* 
 * This file is part of the Symfony package. 
 * 
 * (c) Fabien Potencier <[email protected]> 
 * 
 * For the full copyright and license information, please view the LICENSE 
 * file that was distributed with this source code. 
 */ 
 
/** 
 * Runs a PHP script that can be stopped only with a SIGKILL (9) signal for 3 seconds. 
 * 
 * @args duration Run this script with a custom duration 
 * 
 * @example `php NonStopableProcess.php 42` will run the script for 42 seconds 
 */ 
function handleSignal($signal) 
{ 
    switch ($signal) { 
        case SIGTERM: 
            $name = 'SIGTERM'; 
            break; 
        case SIGINT: 
            $name = 'SIGINT'; 
            break; 
        default: 
            $name = $signal.' (unknown)'; 
            break; 
    } 
 
    echo "signal $name\n"; 
} 
 
pcntl_signal(SIGTERM, 'handleSignal'); 
pcntl_signal(SIGINT, 'handleSignal'); 
 
echo 'received '; 
 
$duration = isset($argv[1]) ? (int) $argv[1] : 3; 
$start = microtime(true); 
 
while ($duration > (microtime(true) - $start)) { 
    usleep(10000); 
    pcntl_signal_dispatch(); 
} 
 
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