6 "github.com/sirupsen/logrus"
8 "github.com/bytom/bytom/errors"
9 "github.com/bytom/bytom/event"
10 "github.com/bytom/bytom/netsync/peers"
11 "github.com/bytom/bytom/p2p"
12 "github.com/bytom/bytom/p2p/security"
13 "github.com/bytom/bytom/protocol"
14 "github.com/bytom/bytom/protocol/bc"
15 "github.com/bytom/bytom/protocol/bc/types"
18 // Switch is the interface for p2p switch.
19 type Switch interface {
20 AddReactor(name string, reactor p2p.Reactor) p2p.Reactor
23 // Chain is the interface for Bytom core.
24 type Chain interface {
25 BestBlockHeight() uint64
26 GetHeaderByHash(*bc.Hash) (*types.BlockHeader, error)
27 ProcessBlock(*types.Block) (bool, error)
28 ProcessBlockSignature(signature, pubkey []byte, blockHash *bc.Hash) error
31 type Peers interface {
32 AddPeer(peer peers.BasePeer)
33 BroadcastMsg(bm peers.BroadcastMsg) error
34 GetPeer(id string) *peers.Peer
35 MarkBlock(peerID string, hash *bc.Hash)
36 MarkBlockSignature(peerID string, signature []byte)
37 ProcessIllegal(peerID string, level byte, reason string)
38 RemovePeer(peerID string)
39 SetStatus(peerID string, height uint64, hash *bc.Hash)
42 type blockMsg struct {
47 // Manager is the consensus message network synchronization manager.
52 blockFetcher *blockFetcher
53 eventDispatcher *event.Dispatcher
58 // NewManager create new manager.
59 func NewManager(sw Switch, chain Chain, peers Peers, dispatcher *event.Dispatcher) *Manager {
64 blockFetcher: newBlockFetcher(chain, peers),
65 eventDispatcher: dispatcher,
66 quit: make(chan struct{}),
68 protocolReactor := NewConsensusReactor(manager)
69 manager.sw.AddReactor("CONSENSUS", protocolReactor)
73 func (m *Manager) addPeer(peer peers.BasePeer) {
77 func (m *Manager) processMsg(peerID string, msgType byte, msg ConsensusMessage) {
78 peer := m.peers.GetPeer(peerID)
83 logrus.WithFields(logrus.Fields{"module": logModule, "peer": peer.Addr(), "type": reflect.TypeOf(msg), "message": msg.String()}).Debug("receive message from peer")
85 switch msg := msg.(type) {
86 case *BlockProposeMsg:
87 m.handleBlockProposeMsg(peerID, msg)
89 case *BlockSignatureMsg:
90 m.handleBlockSignatureMsg(peerID, msg)
93 logrus.WithFields(logrus.Fields{"module": logModule, "peer": peerID, "message_type": reflect.TypeOf(msg)}).Error("unhandled message type")
97 func (m *Manager) handleBlockProposeMsg(peerID string, msg *BlockProposeMsg) {
98 block, err := msg.GetProposeBlock()
100 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Warning("failed on get propose block")
105 m.peers.MarkBlock(peerID, &hash)
106 m.blockFetcher.processNewBlock(&blockMsg{peerID: peerID, block: block})
107 m.peers.SetStatus(peerID, block.Height, &hash)
110 func (m *Manager) handleBlockSignatureMsg(peerID string, msg *BlockSignatureMsg) {
111 m.peers.MarkBlockSignature(peerID, msg.Signature)
112 blockHash := bc.NewHash(msg.BlockHash)
113 if err := m.chain.ProcessBlockSignature(msg.Signature, msg.PubKey, &blockHash); err != nil {
114 if errors.Root(err) != protocol.ErrDoubleSignBlock {
115 m.peers.ProcessIllegal(peerID, security.LevelMsgIllegal, err.Error())
120 func (m *Manager) blockProposeMsgBroadcastLoop() {
121 blockProposeMsgSub, err := m.eventDispatcher.Subscribe(event.NewProposedBlockEvent{})
123 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Error("failed on subscribe NewBlockProposeEvent")
126 defer blockProposeMsgSub.Unsubscribe()
130 case obj, ok := <-blockProposeMsgSub.Chan():
132 logrus.WithFields(logrus.Fields{"module": logModule}).Warning("blockProposeMsgSub channel closed")
136 ev, ok := obj.Data.(event.NewProposedBlockEvent)
138 logrus.WithFields(logrus.Fields{"module": logModule}).Error("event type error")
141 proposeMsg, err := NewBlockProposeMsg(&ev.Block)
143 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Error("failed on create BlockProposeMsg")
147 if err := m.peers.BroadcastMsg(NewBroadcastMsg(proposeMsg, consensusChannel)); err != nil {
148 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Error("failed on broadcast BlockProposeBroadcastMsg")
158 func (m *Manager) blockSignatureMsgBroadcastLoop() {
159 blockSignatureMsgSub, err := m.eventDispatcher.Subscribe(event.BlockSignatureEvent{})
161 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Error("failed on subscribe BlockSignatureEvent")
164 defer blockSignatureMsgSub.Unsubscribe()
167 case obj, ok := <-blockSignatureMsgSub.Chan():
169 logrus.WithFields(logrus.Fields{"module": logModule}).Warning("blockProposeMsgSub channel closed")
173 ev, ok := obj.Data.(event.BlockSignatureEvent)
175 logrus.WithFields(logrus.Fields{"module": logModule}).Error("event type error")
179 blockSignatureMsg := NewBroadcastMsg(NewBlockSignatureMsg(ev.BlockHash, ev.Signature, ev.XPub), consensusChannel)
180 if err := m.peers.BroadcastMsg(blockSignatureMsg); err != nil {
181 logrus.WithFields(logrus.Fields{"module": logModule, "err": err}).Error("failed on broadcast BlockSignBroadcastMsg.")
191 func (m *Manager) removePeer(peerID string) {
192 m.peers.RemovePeer(peerID)
195 //Start consensus manager service.
196 func (m *Manager) Start() error {
197 go m.blockFetcher.blockProcessorLoop()
198 go m.blockProposeMsgBroadcastLoop()
199 go m.blockSignatureMsgBroadcastLoop()
203 //Stop consensus manager service.
204 func (m *Manager) Stop() {