13 "github.com/jinzhu/gorm"
14 log "github.com/sirupsen/logrus"
15 // dbm "github.com/vapor/database/leveldb"
17 vaporCfg "github.com/vapor/config"
18 "github.com/vapor/crypto/ed25519/chainkd"
19 dbm "github.com/vapor/database/leveldb"
20 "github.com/vapor/event"
21 "github.com/vapor/p2p"
22 // conn "github.com/vapor/p2p/connection"
23 "github.com/vapor/netsync/chainmgr"
24 "github.com/vapor/netsync/consensusmgr"
25 msgs "github.com/vapor/netsync/messages"
26 "github.com/vapor/netsync/peers"
27 "github.com/vapor/p2p/discover/dht"
28 "github.com/vapor/p2p/discover/mdns"
29 "github.com/vapor/p2p/signlib"
30 "github.com/vapor/test/mock"
31 "github.com/vapor/toolbar/precog/config"
37 nodeCfg *vaporCfg.Config
39 discvCh chan *dht.Node
45 // TODO: set myself as SPV?
46 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
48 cfg.CheckFreqSeconds = 1
51 tmpDir, err := ioutil.TempDir(".", "vpPrecog")
53 log.Fatalf("failed to create temporary data folder: %v", err)
56 nodeCfg := &vaporCfg.Config{
57 BaseConfig: vaporCfg.DefaultBaseConfig(),
58 P2P: vaporCfg.DefaultP2PConfig(),
59 Federation: vaporCfg.DefaultFederationConfig(),
61 nodeCfg.DBPath = tmpDir
62 nodeCfg.ChainID = "mainnet"
63 discvCh := make(chan *dht.Node)
64 privKey, err := signlib.NewPrivKey()
69 chain, txPool, err := mockChainAndPool()
79 privKey: privKey.(chainkd.XPrv),
85 func (m *monitor) Run() {
86 defer os.RemoveAll(m.nodeCfg.DBPath)
89 for _, node := range m.cfg.Nodes {
90 seeds = append(seeds, fmt.Sprintf("%s:%d", node.Host, node.Port))
91 if err := m.upSertNode(&node); err != nil {
95 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
96 if err := m.makeSwitch(); err != nil {
100 go m.discoveryRoutine()
101 go m.collectDiscoveredNodes()
102 go m.connectNodesRoutine()
103 go m.checkStatusRoutine()
106 func (m *monitor) makeSwitch() error {
107 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
108 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
113 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
114 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
115 sw, err := p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
124 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
125 dispatcher := event.NewDispatcher()
126 // add ConsensusReactor for consensusChannel
127 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
128 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
129 // add ProtocolReactor to handle msgs
130 _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB)
135 for label, reactor := range m.sw.GetReactors() {
136 log.Debug("start reactor: (%s:%v)", label, reactor)
137 if _, err := reactor.Start(); err != nil {
142 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
143 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
145 return m.sw.GetSecurity().Start()
148 func (m *monitor) checkStatusRoutine() {
149 peers := peers.NewPeerSet(m.sw)
150 if err := m.prepareReactors(peers); err != nil {
154 bestHeight := uint64(0)
155 ticker := time.NewTicker(time.Duration(m.cfg.CheckFreqSeconds) * time.Second)
156 for ; true; <-ticker.C {
157 // TODO: peerSet 会自动更新吗?
158 for _, peer := range m.sw.GetPeers().List() {
162 for _, reactor := range m.sw.GetReactors() {
163 log.Debug("AddPeer for reactor", reactor)
164 for _, peer := range m.sw.GetPeers().List() {
165 log.Debug("AddPeer", peer)
167 reactor.AddPeer(peer)
171 for _, peerInfo := range peers.GetPeerInfos() {
172 if peerInfo.Height > bestHeight {
173 bestHeight = peerInfo.Height
176 log.Info("bestHeight", bestHeight)
178 // msg := struct{ msgs.BlockchainMessage }{&msgs.GetBlockMessage{Height: bestHeight + 1}}
179 // for _, peer := range m.sw.GetPeers().List() {
180 // peers.SendMsg(peer.ID(), msgs.BlockchainChannel, msg)