feat:subredis

@@ -7,6 +7,7 @@ use Swoole\Database\RedisPool;
 class RedisCli
 {
     private $pool;
+    public $subRedis = null;
     public function __construct($host,$port,$password,$dbIndex, $num = 20)
     {
         $this->pool = new RedisPool((new RedisConfig)
@@ -117,6 +118,7 @@ class RedisCli
     public function subscribe($channels,callable $onMessage)
     {
         $redis = $this->pool->get();
+        $this->subRedis = $redis;
         try {
             $res = $redis->subscribe($channels,function($redis, $channel, $message)use($onMessage){
                 call_user_func($onMessage,$redis, $channel, $message);
@@ -124,6 +126,7 @@ class RedisCli
         } catch (\RedisException $e) {
             return false;
         }
+        $this->subRedis = null;
         $this->pool->put($redis);
         return $res;
     }
@@ -131,6 +134,7 @@ class RedisCli
     public function psubscribe($channels,callable $onMessage)
     {
         $redis = $this->pool->get();
+        $this->subRedis = $redis;
         try {
             $res = $redis->psubscribe($channels,function($redis, $pattern, $channel, $message)use($onMessage){
                 call_user_func($onMessage, $pattern, $redis, $channel, $message);
@@ -138,6 +142,7 @@ class RedisCli
         }catch (\RedisException $e) {
             return false;
         }
+        $this->subRedis = null;
         $this->pool->put($redis);
         return $res;
     }