6 log "github.com/sirupsen/logrus"
7 "github.com/tendermint/go-crypto"
8 "github.com/tendermint/go-wire"
9 cmn "github.com/tendermint/tmlibs/common"
10 dbm "github.com/tendermint/tmlibs/db"
12 cfg "github.com/bytom/config"
13 "github.com/bytom/p2p"
14 core "github.com/bytom/protocol"
15 "github.com/bytom/protocol/bc"
16 "github.com/bytom/version"
19 //SyncManager Sync Manager is responsible for the business layer information synchronization
20 type SyncManager struct {
23 addrBook *p2p.AddrBook // known peers
25 privKey crypto.PrivKeyEd25519 // local node's p2p key
29 blockKeeper *blockKeeper
32 newBlockCh chan *bc.Hash
33 newPeerCh chan struct{}
35 dropPeerCh chan *string
36 quitSync chan struct{}
41 //NewSyncManager create a sync manager
42 func NewSyncManager(config *cfg.Config, chain *core.Chain, txPool *core.TxPool, newBlockCh chan *bc.Hash) (*SyncManager, error) {
43 // Create the protocol manager with the base fields
44 manager := &SyncManager{
47 privKey: crypto.GenPrivKeyEd25519(),
49 quitSync: make(chan struct{}),
50 newBlockCh: newBlockCh,
51 newPeerCh: make(chan struct{}),
52 txSyncCh: make(chan *txsync),
53 dropPeerCh: make(chan *string, maxQuitReq),
57 trustHistoryDB := dbm.NewDB("trusthistory", config.DBBackend, config.DBDir())
58 manager.sw = p2p.NewSwitch(config.P2P, trustHistoryDB)
60 manager.blockKeeper = newBlockKeeper(manager.chain, manager.sw, manager.peers, manager.dropPeerCh)
61 manager.fetcher = NewFetcher(chain, manager.sw, manager.peers)
63 protocolReactor := NewProtocolReactor(chain, txPool, manager.sw, manager.blockKeeper, manager.fetcher, manager.peers, manager.newPeerCh, manager.txSyncCh, manager.dropPeerCh)
64 manager.sw.AddReactor("PROTOCOL", protocolReactor)
66 // Optionally, start the pex reactor
67 //var addrBook *p2p.AddrBook
68 if config.P2P.PexReactor {
69 manager.addrBook = p2p.NewAddrBook(config.P2P.AddrBookFile(), config.P2P.AddrBookStrict)
70 pexReactor := p2p.NewPEXReactor(manager.addrBook)
71 manager.sw.AddReactor("PEX", pexReactor)
78 func protocolAndAddress(listenAddr string) (string, string) {
79 p, address := "tcp", listenAddr
80 parts := strings.SplitN(address, "://", 2)
82 p, address = parts[0], parts[1]
87 func (sm *SyncManager) makeNodeInfo() *p2p.NodeInfo {
88 nodeInfo := &p2p.NodeInfo{
89 PubKey: sm.privKey.PubKey().Unwrap().(crypto.PubKeyEd25519),
90 Moniker: sm.config.Moniker,
91 Network: sm.config.ChainID,
92 Version: version.Version,
94 cmn.Fmt("wire_version=%v", wire.Version),
95 cmn.Fmt("p2p_version=%v", p2p.Version),
99 if !sm.sw.IsListening() {
103 p2pListener := sm.sw.Listeners()[0]
104 p2pHost := p2pListener.ExternalAddress().IP.String()
105 p2pPort := p2pListener.ExternalAddress().Port
107 // We assume that the rpcListener has the same ExternalAddress.
108 // This is probably true because both P2P and RPC listeners use UPnP,
109 // except of course if the rpc is only bound to localhost
110 nodeInfo.ListenAddr = cmn.Fmt("%v:%v", p2pHost, p2pPort)
114 func (sm *SyncManager) netStart() error {
115 // Create & add listener
116 p, address := protocolAndAddress(sm.config.P2P.ListenAddress)
118 l := p2p.NewDefaultListener(p, address, sm.config.P2P.SkipUPNP, nil)
123 sm.sw.SetNodeInfo(sm.makeNodeInfo())
124 sm.sw.SetNodePrivKey(sm.privKey)
125 _, err := sm.sw.Start()
130 // If seeds exist, add them to the address book and dial out
131 if sm.config.P2P.Seeds != "" {
133 seeds := strings.Split(sm.config.P2P.Seeds, ",")
134 if err := sm.DialSeeds(seeds); err != nil {
142 //Start start sync manager service
143 func (sm *SyncManager) Start() {
145 // broadcast transactions
146 go sm.txBroadcastLoop()
148 // broadcast mined blocks
149 go sm.minedBroadcastLoop()
151 // start sync handlers
157 //Stop stop sync manager
158 func (sm *SyncManager) Stop() {
163 func (sm *SyncManager) txBroadcastLoop() {
164 newTxCh := sm.txPool.GetNewTxCh()
167 case newTx := <-newTxCh:
168 sm.peers.BroadcastTx(newTx)
176 func (sm *SyncManager) minedBroadcastLoop() {
179 case blockHash := <-sm.newBlockCh:
180 block, err := sm.chain.GetBlockByHash(blockHash)
182 log.Errorf("Failed on mined broadcast loop get block %v", err)
185 sm.peers.BroadcastMinedBlock(block)
192 //NodeInfo get P2P peer node info
193 func (sm *SyncManager) NodeInfo() *p2p.NodeInfo {
194 return sm.sw.NodeInfo()
197 //BlockKeeper get block keeper
198 func (sm *SyncManager) BlockKeeper() *blockKeeper {
199 return sm.blockKeeper
202 //Peers get sync manager peer set
203 func (sm *SyncManager) Peers() *peerSet {
207 //DialSeeds dial seed peers
208 func (sm *SyncManager) DialSeeds(seeds []string) error {
209 return sm.sw.DialSeeds(sm.addrBook, seeds)
212 //Switch get sync manager switch
213 func (sm *SyncManager) Switch() *p2p.Switch {