package main import ( "os" "os/signal" "github.com/tendermint/tendermint/block" "github.com/tendermint/tendermint/config" "github.com/tendermint/tendermint/consensus" db_ "github.com/tendermint/tendermint/db" mempool_ "github.com/tendermint/tendermint/mempool" "github.com/tendermint/tendermint/p2p" "github.com/tendermint/tendermint/rpc" state_ "github.com/tendermint/tendermint/state" ) type Node struct { lz []p2p.Listener sw *p2p.Switch book *p2p.AddrBook pexReactor *p2p.PEXReactor mempoolReactor *mempool_.MempoolReactor consensusReactor *consensus.ConsensusReactor privValidator *state_.PrivValidator } func NewNode() *Node { // Get BlockStore blockStoreDB := db_.NewMemDB() // TODO configurable db. blockStore := block.NewBlockStore(blockStoreDB) // Get State stateDB := db_.NewMemDB() // TODO configurable db. state := state_.LoadState(stateDB) if state == nil { state = state_.MakeGenesisStateFromFile(stateDB, config.GenesisFile()) state.Save() } // Get PrivValidator var privValidator *state_.PrivValidator if _, err := os.Stat(config.PrivValidatorFile()); err == nil { privValidator = state_.LoadPrivValidator() } // Get PEXReactor book := p2p.NewAddrBook(config.AddrBookFile()) pexReactor := p2p.NewPEXReactor(book) // Get MempoolReactor mempool := mempool_.NewMempool(state) mempoolReactor := mempool_.NewMempoolReactor(mempool) // Get ConsensusReactor consensusReactor := consensus.NewConsensusReactor(blockStore, mempoolReactor, state) if privValidator != nil { consensusReactor.SetPrivValidator(privValidator) } sw := p2p.NewSwitch([]p2p.Reactor{pexReactor, mempoolReactor, consensusReactor}) return &Node{ sw: sw, book: book, pexReactor: pexReactor, mempoolReactor: mempoolReactor, consensusReactor: consensusReactor, privValidator: privValidator, } } func (n *Node) Start() { log.Info("Starting Node") for _, l := range n.lz { go n.inboundConnectionRoutine(l) } n.book.Start() n.sw.Start() } func (n *Node) Stop() { log.Info("Stopping Node") // TODO: gracefully disconnect from peers. n.sw.Stop() n.book.Stop() } // Add a Listener to accept inbound peer connections. func (n *Node) AddListener(l p2p.Listener) { log.Info("Added %v", l) n.lz = append(n.lz, l) n.book.AddOurAddress(l.ExternalAddress()) } func (n *Node) inboundConnectionRoutine(l p2p.Listener) { for { inConn, ok := <-l.Connections() if !ok { break } // New inbound connection! peer, err := n.sw.AddPeerWithConnection(inConn, false) if err != nil { log.Info("Ignoring error from inbound connection: %v\n%v", peer, err) continue } // NOTE: We don't yet have the external address of the // remote (if they have a listener at all). // PEXReactor's pexRoutine will handle that. } // cleanup } func daemon() { // Create & start node n := NewNode() l := p2p.NewDefaultListener("tcp", config.Config.LAddr, false) n.AddListener(l) n.Start() // If seedNode is provided by config, dial out. if config.Config.SeedNode != "" { peer, err := n.sw.DialPeerWithAddress(p2p.NewNetAddressString(config.Config.SeedNode)) if err != nil { log.Error("Error dialing seed: %v", err) //n.book.MarkAttempt(addr) return } else { log.Info("Connected to seed: %v", peer) } } // Run the RPC server. if config.Config.RPC.HTTPPort != 0 { rpc.StartHTTPServer() } // Sleep forever and then... trapSignal(func() { n.Stop() }) } func trapSignal(cb func()) { c := make(chan os.Signal, 1) signal.Notify(c, os.Interrupt) go func() { for sig := range c { log.Info("captured %v, exiting..", sig) cb() os.Exit(1) } }() select {} }