update to 2.4.3 version (build 403)

add config: swoole.max_wait_time (default 5)
add constant MAIN_WORKER
add getExpireTS() for LightCache
fix savePersistence() bug
add zm_go() to prevent errors

src/ZM/Event/SwooleEvent/OnBeforeReload.php

@@ -0,0 +1,26 @@
+<?php
+
+
+namespace ZM\Event\SwooleEvent;
+
+
+use Swoole\Process;
+use ZM\Annotation\Swoole\SwooleHandler;
+use ZM\Console\Console;
+use ZM\Event\SwooleEvent;
+
+/**
+ * Class OnBeforeReload
+ * @package ZM\Event\SwooleEvent
+ * @SwooleHandler("BeforeReload")
+ */
+class OnBeforeReload implements SwooleEvent
+{
+    public function onCall() {
+        Console::info(Console::setColor("Reloading server...", "gold"));
+        for ($i = 0; $i < ZM_WORKER_NUM; ++$i) {
+            Process::kill(zm_atomic("_#worker_".$i)->get(), SIGUSR1);
+        }
+        usleep(800 * 1000);
+    }
+}