public static function synExecute($hint_str, $critialFunc)
{
//lock file
$handle = fopen(ConfigManager::getOGameMutexFileName(), "r+");
while (!flock($handle, LOCK_EX)) {
sleep(1);
}
echo "\n== " . $hint_str . " Syn Start ==\n\n";
//critical section
$result = $critialFunc();
echo "\n==Syn end==\n";
flock($handle, LOCK_UN);
fclose($handle);
return $result;
}
