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"
34 nodeCfg *vaporCfg.Config
36 discvCh chan *dht.Node
43 // TODO: set myself as SPV?
44 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
46 cfg.CheckFreqSeconds = 30
48 dbPath, err := makePath()
53 nodeCfg := &vaporCfg.Config{
54 BaseConfig: vaporCfg.DefaultBaseConfig(),
55 P2P: vaporCfg.DefaultP2PConfig(),
56 Federation: vaporCfg.DefaultFederationConfig(),
58 nodeCfg.DBPath = dbPath
59 nodeCfg.ChainID = "mainnet"
60 discvCh := make(chan *dht.Node)
61 privKey, err := signlib.NewPrivKey()
66 chain, txPool, err := mockChainAndPool()
76 privKey: privKey.(chainkd.XPrv),
82 func makePath() (string, error) {
83 usr, err := user.Current()
88 dataPath := usr.HomeDir + "/.precog"
89 if err := os.MkdirAll(dataPath, os.ModePerm); err != nil {
93 tmpDir, err := ioutil.TempDir(dataPath, "")
101 func (m *monitor) Run() {
102 defer os.RemoveAll(m.nodeCfg.DBPath)
105 for _, node := range m.cfg.Nodes {
106 seeds = append(seeds, fmt.Sprintf("%s:%d", node.Host, node.Port))
107 if err := m.upSertNode(&node); err != nil {
111 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
112 if err := m.makeSwitch(); err != nil {
116 go m.discoveryRoutine()
117 go m.collectDiscoveredNodes()
118 go m.connectNodesRoutine()
119 go m.checkStatusRoutine()
122 func (m *monitor) makeSwitch() error {
123 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
124 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
129 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
130 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
131 sw, err := p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
140 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
141 dispatcher := event.NewDispatcher()
142 // add ConsensusReactor for consensusChannel
143 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
144 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
145 // add ProtocolReactor to handle msgs
146 _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB)
151 for label, reactor := range m.sw.GetReactors() {
152 log.Debug("start reactor: (%s:%v)", label, reactor)
153 if _, err := reactor.Start(); err != nil {
158 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
159 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
161 return m.sw.GetSecurity().Start()
165 // 现象是,时间区间过小时, 会一直有 dial ,但是不能 send业务层 msg
166 // 还不确定是不是死锁,时间调大一点比如15s 就可以正确运行
167 // 想法,自己再另外加锁,或者找到锁住的真正原因
168 func (m *monitor) checkStatusRoutine() {
169 peers := peers.NewPeerSet(m.sw)
170 if err := m.prepareReactors(peers); err != nil {
174 protocolReactor, ok := m.sw.GetReactors()["PROTOCOL"]
176 log.Fatal("protocolReactor not found")
179 bestHeight := uint64(0)
180 ticker := time.NewTicker(time.Duration(m.cfg.CheckFreqSeconds) * time.Second)
182 for !m.isConnected() {
183 time.Sleep(1 * time.Second)
185 log.Info("connected peers: ", m.sw.GetPeers().List())
187 for _, peer := range m.sw.GetPeers().List() {
189 protocolReactor.AddPeer(peer)
192 for _, peer := range m.sw.GetPeers().List() {
193 p := peers.GetPeer(peer.ID())
198 if err := p.SendStatus(m.chain.BestBlockHeader(), m.chain.LastIrreversibleHeader()); err != nil {
199 peers.RemovePeer(p.ID())
203 for _, peerInfo := range peers.GetPeerInfos() {
204 if peerInfo.Height > bestHeight {
205 bestHeight = peerInfo.Height
208 m.savePeerInfo(peerInfo)
210 log.Info("bestHeight: ", bestHeight)
213 // msg := struct{ msgs.BlockchainMessage }{&msgs.GetBlockMessage{Height: bestHeight + 1}}
214 // for _, peer := range m.sw.GetPeers().List() {
215 // peers.SendMsg(peer.ID(), msgs.BlockchainChannel, msg)
218 for _, peer := range m.sw.GetPeers().List() {
219 p := peers.GetPeer(peer.ID())
224 peers.RemovePeer(p.ID())
228 log.Info("Disonnect all peers.")
232 func (m *monitor) isConnected() bool {
233 atomic.LoadUint32(&m.connected)
234 return m.connected == uint32(1)
237 func (m *monitor) setConnected() {
238 atomic.StoreUint32(&m.connected, 1)
241 func (m *monitor) setDisonnected() {
242 atomic.StoreUint32(&m.connected, 0)