package uspv import ( "log" "github.com/btcsuite/btcd/wire" ) func (s *SPVCon) incomingMessageHandler() { for { n, xm, _, err := wire.ReadMessageN(s.con, s.localVersion, s.param.Net) if err != nil { log.Printf("ReadMessageN error. Disconnecting: %s\n", err.Error()) return } s.RBytes += uint64(n) // log.Printf("Got %d byte %s message\n", n, xm.Command()) switch m := xm.(type) { case *wire.MsgVersion: log.Printf("Got version message. Agent %s, version %d, at height %d\n", m.UserAgent, m.ProtocolVersion, m.LastBlock) s.remoteVersion = uint32(m.ProtocolVersion) // weird cast! bug? case *wire.MsgVerAck: log.Printf("Got verack. Whatever.\n") case *wire.MsgAddr: log.Printf("got %d addresses.\n", len(m.AddrList)) case *wire.MsgPing: log.Printf("Got a ping message. We should pong back or they will kick us off.") s.PongBack(m.Nonce) case *wire.MsgPong: log.Printf("Got a pong response. OK.\n") case *wire.MsgMerkleBlock: err = s.IngestMerkleBlock(m) if err != nil { log.Printf("Merkle block error: %s\n", err.Error()) continue } case *wire.MsgHeaders: moar, err := s.IngestHeaders(m) if err != nil { log.Printf("Header error: %s\n", err.Error()) return } if moar { s.AskForHeaders() } case *wire.MsgTx: err := s.TS.AckTx(m) if err != nil { log.Printf("Incoming Tx error: %s\n", err.Error()) } // log.Printf("Got tx %s\n", m.TxSha().String()) case *wire.MsgReject: log.Printf("Rejected! cmd: %s code: %s tx: %s reason: %s", m.Cmd, m.Code.String(), m.Hash.String(), m.Reason) case *wire.MsgInv: log.Printf("got inv. Contains:\n") for i, thing := range m.InvList { log.Printf("\t%d)%s : %s", i, thing.Type.String(), thing.Hash.String()) if thing.Type == wire.InvTypeTx { // new tx, ingest s.TS.OKTxids[thing.Hash] = 0 // unconfirmed s.AskForTx(thing.Hash) } if thing.Type == wire.InvTypeBlock { // new block, ingest s.AskForBlock(thing.Hash) } } default: log.Printf("Got unknown message type %s\n", m.Command()) } } return } // this one seems kindof pointless? could get ridf of it and let // functions call WriteMessageN themselves... func (s *SPVCon) outgoingMessageHandler() { for { msg := <-s.outMsgQueue n, err := wire.WriteMessageN(s.con, msg, s.localVersion, s.param.Net) if err != nil { log.Printf("Write message error: %s", err.Error()) } s.WBytes += uint64(n) } return }