Subversion-Projekte lars-tiefland.php_share

#!/usr/bin/php -q

<?php

/**

 * System_Daemon turns PHP-CLI scripts into daemons.

 *

 * PHP version 5

 *

 * @category  System

 * @package   System_Daemon

 * @author    Kevin <kevin@vanzonneveld.net>

 * @copyright 2008 Kevin van Zonneveld

 * @license   http://www.opensource.org/licenses/bsd-license.php

 * @link      http://github.com/kvz/system_daemon

 */

/**

 * System_Daemon Example Code

 *

 * If you run this code successfully, a daemon will be spawned

 * but unless have already generated the init.d script, you have

 * no real way of killing it yet.

 *

 * In this case wait 3 runs, which is the maximum for this example.

 *

 *

 * In panic situations, you can always kill you daemon by typing

 *

 * killall -9 signals.php

 * OR:

 * killall -9 php

 */

// Make it possible to test in source directory

// This is for PEAR developers only

ini_set('include_path', ini_get('include_path').':..');

// Include Class

error_reporting(E_ALL);

require_once 'System/Daemon.php';

// Setup

System_Daemon::setOptions(array(

    'appName' => 'signals',

    'appDir' => dirname(__FILE__),

    'appDescription' => 'Showcases how you could catch POSIX signals',

    'authorName' => 'Kevin van Zonneveld',

    'authorEmail' => 'kevin@vanzonneveld.net',

    'sysMaxExecutionTime' => '0',

    'sysMaxInputTime' => '0',

    'sysMemoryLimit' => '1024M',

    'appRunAsGID' => 1000,

    'appRunAsUID' => 1000,

));

// Overrule the signal handler with any function

System_Daemon::setSigHandler(SIGTERM, 'myHandler');

function myHandler($signal) {

    if ($signal === SIGTERM) {

        System_Daemon::warning('I received the termination signal. ' . $sig);

        // Execute some final code

        // and be sure to:

        System_Daemon::stop();

    }

}

// Spawn Daemon

System_Daemon::start();

// Here comes your own actual code

// This variable keeps track of how many 'runs' or 'loops' your daemon has

// done so far. For example purposes, we're quitting on 3.

$cnt = 1;

// While checks on 2 things in this case:

// - That the Daemon Class hasn't reported it's dying

// - That we're not executing more than 3 runs

while (!System_Daemon::isDying() && $cnt <=3) {

    // Log something using the Daemon class's logging facility

    // Depending on runmode it will either end up:

    //  - In the /var/log/logparser.log

    //  - On screen (in case we're not a daemon yet)

    System_Daemon::info('{appName} running %s/3',

        $cnt

    );

    // Relax the system by sleeping for a little bit

    // iterate() also clears statcache

    System_Daemon::iterate(2);

    // Just here to showcase how sighandlers can work

    // to catch a

    //   /etc/init.d/signals stop

    // The SIGTERM signal tells the daemon to quit.

    // Normally it's catched by the ::defaultSigHandler()

    // but now we catch it with myHandler()

    posix_kill(posix_getpid(), SIGTERM);

    $cnt++;

}

// Shut down the daemon nicely

// This is ignored if the class is actually running in the foreground

System_Daemon::stop();