/**
* 注册一个shutdown函数（一般是清理函数）
* @param callback $callback array(obj,func), 'class::staticfunc',....
* @param string $funcDesc function desc
*/
public static function registerShutdown($callback, $funcDesc)
{
if ($callback === null) {
foreach (self::$funcShutdown as $funcDesc => $func) {
try {
if (is_array($func) || is_string($func)) {
call_user_func($func);
} else {
$func();
}
} catch (\ErrorException $e) {
error_log('error shutdown:' . $funcDesc . " " . $e->getMessage() . "\n" . $e->getTraceAsString());
}
}
if (class_exists("\\Sooh\\DB\\Broker", false)) {
\Sooh\DB\Broker::free();
}
} else {
self::$funcShutdown[$funcDesc] = $callback;
}
}