feat：k线增加ping

@@ -23,6 +23,8 @@ class ExBroker
     private OkxApi $api;
     private ?Websocket $wsAcc;
     private ?Websocket $wsKline;
+    private $timerAccPing = 0;
+    private $timerKlinePing = 0;
 
     public function __construct($apiInfo)
     {
@@ -47,12 +49,15 @@ class ExBroker
         $this->wsAcc->connect(
             $onOpen = function () {
                 $this->wsLogin();
+                //开始定时ping
+                $this->wsAccPing();
             },
             $onMessage = function ($data) use ($onWsData) {
                 $this->onWsDataPre($data, $onWsData);
             },
             $onClose = function () {
                 // 关闭链接
+                swoole_timer_clear($this->timerAccPing);
             }
         );
     }
@@ -74,6 +79,8 @@ class ExBroker
                 ];
                 output("订阅", $subData);
                 $this->wsKline->push(json_encode($subData));
+                //开始定时ping
+                $this->wsKlinePing();
             },
             $onMessage = function ($data) use ($onData) {
                 $data = json_decode($data, true);
@@ -84,10 +91,23 @@ class ExBroker
                 $onData($data);
             },
             $onClose = function () {
-                // 关闭链接
+                // 关闭链接 关闭定时ping
+                swoole_timer_clear($this->timerKlinePing);
             }
         );
     }
+    private function wsKlinePing()
+    {
+        $this->timerKlinePing = swoole_timer_tick(1000 * 20, function () {
+            $this->wsKline->push("ping");
+        });
+    }
+    private function wsAccPing()
+    {
+        $this->timerAccPing = swoole_timer_tick(1000 * 20, function () {
+            $this->wsAcc->push("ping");
+        });
+    }
     private function crateWsSign($timeStamp)
     {
         $method = 'GET';