Esempio n. 1
0
/*
Conn.performHandshake Responsible for performing handshake with service
*/
func (c *Conn) performHandshake() (err error) {
	var sh skynet.ServiceHandshake
	decoder := bsonrpc.NewDecoder(c.conn)

	err = decoder.Decode(&sh)
	if err != nil {
		log.Println(log.ERROR, "Failed to decode ServiceHandshake", err)
		c.conn.Close()

		return HandshakeFailed
	}

	ch := skynet.ClientHandshake{}
	encoder := bsonrpc.NewEncoder(c.conn)

	err = encoder.Encode(ch)
	if err != nil {
		log.Println(log.ERROR, "Failed to encode ClientHandshake", err)
		c.conn.Close()

		return HandshakeFailed
	}

	if !sh.Registered {
		return ServiceUnregistered
	}

	c.rpcClient = bsonrpc.NewClient(c.conn)
	c.clientID = sh.ClientID

	return
}
Esempio n. 2
0
func getConnectionFactory(s *skynet.ServiceInfo) (factory pools.Factory) {
	factory = func() (pools.Resource, error) {
		conn, err := net.Dial("tcp", s.ServiceAddr.String())

		if err != nil {
			// TODO: handle failure here and attempt to connect to a different instance
			return nil, errors.New("Failed to connect to service: " + s.ServiceAddr.String())
		}

		// get the service handshake
		var sh skynet.ServiceHandshake
		decoder := bsonrpc.NewDecoder(conn)

		err = decoder.Decode(&sh)
		if err != nil {
			conn.Close()
			return nil, err
		}

		ch := skynet.ClientHandshake{}
		encoder := bsonrpc.NewEncoder(conn)

		err = encoder.Encode(ch)
		if err != nil {
			conn.Close()
			return nil, err
		}

		if !sh.Registered {
			// this service has unregistered itself, look elsewhere
			conn.Close()
			return factory()
		}

		resource := ServiceResource{
			rpcClient: bsonrpc.NewClient(conn),
			service:   s,
			clientID:  sh.ClientID,
		}

		return resource, nil
	}
	return
}