/*
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
}
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
}