wm怎么找到好友的狀態(tài)原理

phperv6 更新于2015-11-10

protected static function sendUdpAndRecv($address , $data)
   {
       $buffer = GatewayProtocol::encode($data);
       // 非workerman環(huán)境，使用udp發(fā)送數(shù)據(jù)
       $client = stream_socket_client("udp://$address", $errno, $errmsg);
       if(strlen($buffer) == stream_socket_sendto($client, $buffer))
       {
           // 阻塞讀
           stream_set_blocking($client, 1);
           // 1秒超時
           stream_set_timeout($client, 1);
           // 讀udp數(shù)據(jù)
           $data = fread($client, 655350);
           // 返回結(jié)果
           return json_decode($data, true);
       }
       else
       {
           throw new \Exception("sendUdpAndRecv($address, \$bufer) fail ! Can not send UDP data!", 502);
       }
   }

判斷客戶端的狀態(tài),給客戶端對應(yīng)的gateway發(fā)送udp，但是怎么找到客服端對應(yīng)的連接呢

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1個回答

walkor 2015-11-10

打賞

udp數(shù)據(jù)里面包含了客戶端標示client_id，gateway收到udp數(shù)據(jù)解析得到client_id，從當前進程中可以直接得到對應(yīng)的連接，因為所有連接都存儲在一個數(shù)組中，數(shù)組的key就是client_id

phperv6 2015-11-10

$this->storeClientAddress($connection->globalClientId, $address);
phperv6 2015-11-10

case GatewayProtocol::CMD_IS_ONLINE:
$connection->send((int)isset($this->_clientConnections[$data['client_id']]));