12 "github.com/jinzhu/gorm"
13 log "github.com/sirupsen/logrus"
15 vaporCfg "github.com/vapor/config"
16 "github.com/vapor/crypto/ed25519/chainkd"
17 dbm "github.com/vapor/database/leveldb"
18 "github.com/vapor/event"
19 "github.com/vapor/netsync/chainmgr"
20 "github.com/vapor/netsync/consensusmgr"
21 "github.com/vapor/p2p"
22 // msgs "github.com/vapor/netsync/messages"
23 "github.com/vapor/netsync/peers"
24 "github.com/vapor/p2p/discover/dht"
25 "github.com/vapor/p2p/discover/mdns"
26 "github.com/vapor/p2p/signlib"
27 "github.com/vapor/test/mock"
28 "github.com/vapor/toolbar/precog/config"
35 nodeCfg *vaporCfg.Config
37 discvCh chan *dht.Node
42 checkStatusCh chan struct{}
45 // TODO: set myself as SPV?
46 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
48 cfg.CheckFreqSeconds = 15
50 dbPath, err := makePath()
55 nodeCfg := &vaporCfg.Config{
56 BaseConfig: vaporCfg.DefaultBaseConfig(),
57 P2P: vaporCfg.DefaultP2PConfig(),
58 Federation: vaporCfg.DefaultFederationConfig(),
60 nodeCfg.DBPath = dbPath
61 nodeCfg.ChainID = "mainnet"
62 discvCh := make(chan *dht.Node)
63 privKey, err := signlib.NewPrivKey()
68 chain, txPool, err := mockChainAndPool()
74 // RWMutex: &sync.RWMutex{},
79 privKey: privKey.(chainkd.XPrv),
82 dialCh: make(chan struct{}, 1),
83 checkStatusCh: make(chan struct{}, 1),
87 func makePath() (string, error) {
88 usr, err := user.Current()
93 dataPath := usr.HomeDir + "/.precog"
94 if err := os.MkdirAll(dataPath, os.ModePerm); err != nil {
98 tmpDir, err := ioutil.TempDir(dataPath, "")
106 func (m *monitor) Run() {
107 defer os.RemoveAll(m.nodeCfg.DBPath)
110 for _, node := range m.cfg.Nodes {
111 seeds = append(seeds, fmt.Sprintf("%s:%d", node.Host, node.Port))
112 if err := m.upSertNode(&node); err != nil {
116 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
117 if err := m.makeSwitch(); err != nil {
121 m.dialCh <- struct{}{}
122 go m.discoveryRoutine()
123 go m.collectDiscoveredNodes()
124 go m.connectNodesRoutine()
125 go m.checkStatusRoutine()
128 func (m *monitor) makeSwitch() error {
129 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
130 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
135 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
136 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
137 sw, err := p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
146 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
147 dispatcher := event.NewDispatcher()
148 // add ConsensusReactor for consensusChannel
149 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
150 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
151 // add ProtocolReactor to handle msgs
152 _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB)
157 for label, reactor := range m.sw.GetReactors() {
158 log.Debugf("start reactor: (%s:%v)", label, reactor)
159 if _, err := reactor.Start(); err != nil {
164 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
165 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
166 return m.sw.GetSecurity().Start()
169 func (m *monitor) checkStatusRoutine() {
170 peers := peers.NewPeerSet(m.sw)
171 if err := m.prepareReactors(peers); err != nil {
175 bestHeight := uint64(0)
176 for range m.checkStatusCh {
177 for _, peer := range m.sw.GetPeers().List() {
181 log.Infof("%d connected peers: %v", len(m.sw.GetPeers().List()), m.sw.GetPeers().List())
183 for _, peer := range m.sw.GetPeers().List() {
184 p := peers.GetPeer(peer.ID())
189 if err := p.SendStatus(m.chain.BestBlockHeader(), m.chain.LastIrreversibleHeader()); err != nil {
191 peers.RemovePeer(p.ID())
195 for _, peerInfo := range peers.GetPeerInfos() {
196 if peerInfo.Height > bestHeight {
197 bestHeight = peerInfo.Height
200 log.Info("bestHeight: ", bestHeight)
201 m.processPeerInfos(peers.GetPeerInfos())
204 // msg := struct{ msgs.BlockchainMessage }{&msgs.GetBlockMessage{Height: bestHeight + 1}}
205 // for _, peer := range m.sw.GetPeers().List() {
206 // peers.SendMsg(peer.ID(), msgs.BlockchainChannel, msg)
209 for _, peer := range m.sw.GetPeers().List() {
210 p := peers.GetPeer(peer.ID())
215 peers.RemovePeer(p.ID())
217 log.Info("Disonnect all peers.")
218 m.dialCh <- struct{}{}