/**
* Checks if file locked
*
* @param string $process_name file name
* @return boolean
*/
public static function isLocked($process_name = 'process_message')
{
$pidfile = ProcessPid::getDir() . DIRECTORY_SEPARATOR . $process_name . '.lock';
$running_pid = 0;
if (file_exists($pidfile)) {
$size = @filesize($pidfile);
$running_pid = @file_get_contents($pidfile);
if ($size > 0 && $running_pid == false) {
return true;
}
}
return false;
}
