算法优化，环信接口有限制，每个时间段最多能推送多少请求

application/chat/utils/RPush.php

@@ -28,7 +28,19 @@ class RPush
      */
     public function send($target_type, $target, $msg_content, $from, $type, $access_token, $callback)
     {
-        //todo 这里做算法优化，环信接口有限制，每个时间段最多能推送多少请求
+        //todo
+        if(Cache::get('save_message_num')){
+            $save_message_num=Cache::get('save_message_num');
+            if($save_message_num>10){
+                sleep(1);
+                Cache::set('save_message_num', 0);
+            }else{
+                $save_message_num=$save_message_num+1;
+                Cache::set('save_message_num', $save_message_num);
+            }
+        }else{
+            Cache::set('save_message_num', 0);
+        }
 
         $response = $this->sendRequestByCurl($target_type, $target, $msg_content, $from, $type, $access_token);