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