function phpAds_performAutoMaintenance()
{
global $phpAds_config;
// Make sure that the output is sent to the browser before
// loading libraries and connecting to the db
flush();
// Include required files
if (!defined('LIBLOCKS_INCLUDED')) {
require phpAds_path . '/libraries/lib-locks.inc.php';
}
// Load config from the db
phpAds_LoadDbConfig();
$last_run = $phpAds_config['maintenance_timestamp'];
// Make sure that negative values don't break the script
if ($last_run > 0) {
$last_run = strtotime(date('Y-m-d H:00:05', $last_run));
}
if (time() >= $last_run + 3600) {
if ($lock = phpAds_maintenanceGetLock()) {
require phpAds_path . "/libraries/lib-userlog.inc.php";
require phpAds_path . "/maintenance/lib-maintenance.inc.php";
// Got the advisory lock, we can proceed running maintenance
phpAds_userlogSetUser(phpAds_userAutoMaintenance);
// Finally run maintenance
phpAds_performMaintenance();
// Release lock
phpAds_maintenanceReleaseLock($lock);
}
}
}
// Figure out our location
if (strlen(__FILE__) > strlen(basename(__FILE__))) {
define('phpAds_path', ereg_replace("[/\\\\]maintenance[/\\\\][^/\\\\]+\$", '', __FILE__));
} else {
define('phpAds_path', '..');
}
// Include required files
require phpAds_path . "/config.inc.php";
require phpAds_path . "/libraries/lib-db.inc.php";
require phpAds_path . "/libraries/lib-dbconfig.inc.php";
require phpAds_path . "/libraries/lib-cache.inc.php";
require phpAds_path . "/libraries/lib-userlog.inc.php";
require phpAds_path . "/maintenance/lib-maintenance.inc.php";
// Make database connection and load config
phpAds_dbConnect();
phpAds_LoadDbConfig();
// Set maintenance usertype
phpAds_userlogSetUser(phpAds_userMaintenance);
// Sometimes cron jobs could start before the exact minute they were set,
// especially if many are scheduled at the same time (e.g. midnight)
//
// Wait a few seconds if needed, to ensure all goes well, otherwise
// maintenance won't work as it should
if (date('i') == 59 && date('s') >= 45) {
sleep(60 - date('s'));
}
// Finally run maintenance
if (phpAds_performMaintenance()) {
// Update the timestamp
$res = phpAds_dbQuery("\n\t\tUPDATE\n\t\t\t" . $phpAds_config['tbl_config'] . "\n\t\tSET\n\t\t\tmaintenance_cron_timestamp = '" . time() . "'\n\t");
}