avoid using \Swoole\Serialize for mem leak issue

Author: fdreamsu

src/HttpServer.php

@@ -177,7 +177,7 @@ function () use ($cmds, $host, $port) {
                     ]);
                 if (! $client->connect($host, $port ?? Environment::getServiceConfig()->terminal_server_port, - 1))
                     exit("connect failed. Error: {$client->errCode}\n");
-                $client->send(\Swoole\Serialize::pack($cmds, SWOOLE_FAST_PACK) . "\r\n");
+                $client->send(implode("\x1E", $cmds) . "\r\n");
                 for($response = $client->recv(); $response; $response = $client->recv())
                     echo $response;
                 $client->close();

src/TerminalServer.php

@@ -42,7 +42,7 @@ public function onReceive(\Swoole\Server $server, int $fd, int $reactor_id, stri
                 'switch' => 0
             ]);
         $data = substr($data, 0, - 2);
-        $cmds = \Swoole\Serialize::unpack($data);
+        $cmds = explode("\x1E", $data);
         switch ($cmds[0]) {
             case 'show' :
                 if ($cmds[1] === 'request') {

src/session.php

@@ -246,7 +246,13 @@ public static function get(string $key) {
         $value = $ob->hGet($ob->sid, $key);
 
         if (isset($value))
-            $value = \Swoole\serialize::unpack($value);
+            try {
+                $value = \Json::decodeAsObject($value);
+            } catch(\JsonDecodeFailException $e) {
+                // 旧版本兼容，并试图以新格式存储
+                $value = \Swoole\serialize::unpack($value);
+                $ob->changed[$key] = true;
+            }
         $ob->data->{$key} = $value;
         return $value;
     }
@@ -260,7 +266,13 @@ public static function has(string $key): bool {
         $value = $ob->hGet($ob->sid, $key);
 
         if (isset($value))
-            $value = \Swoole\serialize::unpack($value);
+            try {
+                $value = \Json::decodeAsObject($value);
+            } catch(\JsonDecodeFailException $e) {
+                // 旧版本兼容，并试图以新格式存储
+                $value = \Swoole\serialize::unpack($value);
+                $ob->changed[$key] = true;
+            }
         $ob->data->{$key} = $value;
         return isset($value);
     }
@@ -355,7 +367,7 @@ private function saveIfNeeded(): void {
         foreach ($this->changed as $key=>$tmp) {
             $value = $this->data->{$key};
             if (isset($value))
-                $set[$key] = \Swoole\serialize::pack($value);
+                $set[$key] = \Json::encode($value);
             else
                 $del[] = $key;
         }