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package daemon
import (
"os"
"os/signal"
"github.com/ebuchman/debora"
bc "github.com/tendermint/tendermint/blockchain"
. "github.com/tendermint/tendermint/common"
"github.com/tendermint/tendermint/config"
"github.com/tendermint/tendermint/consensus"
dbm "github.com/tendermint/tendermint/db"
mempl "github.com/tendermint/tendermint/mempool"
"github.com/tendermint/tendermint/p2p"
"github.com/tendermint/tendermint/rpc"
"github.com/tendermint/tendermint/rpc/core"
sm "github.com/tendermint/tendermint/state"
)
type Node struct {
sw *p2p.Switch
book *p2p.AddrBook
blockStore *bc.BlockStore
pexReactor *p2p.PEXReactor
bcReactor *bc.BlockchainReactor
mempoolReactor *mempl.MempoolReactor
consensusState *consensus.ConsensusState
consensusReactor *consensus.ConsensusReactor
privValidator *sm.PrivValidator
}
func NewNode() *Node {
// Get BlockStore
blockStoreDB := dbm.GetDB("blockstore")
blockStore := bc.NewBlockStore(blockStoreDB)
// Get State
stateDB := dbm.GetDB("state")
state := sm.LoadState(stateDB)
if state == nil {
state = sm.MakeGenesisStateFromFile(stateDB, config.App().GetString("GenesisFile"))
state.Save()
}
// Get PrivValidator
var privValidator *sm.PrivValidator
if _, err := os.Stat(config.App().GetString("PrivValidatorFile")); err == nil {
privValidator = sm.LoadPrivValidator(config.App().GetString("PrivValidatorFile"))
log.Info("Loaded PrivValidator", "file", config.App().GetString("PrivValidatorFile"), "privValidator", privValidator)
} else {
log.Info("No PrivValidator found", "file", config.App().GetString("PrivValidatorFile"))
}
// Get PEXReactor
book := p2p.NewAddrBook(config.App().GetString("AddrBookFile"))
pexReactor := p2p.NewPEXReactor(book)
// Get BlockchainReactor
bcReactor := bc.NewBlockchainReactor(state, blockStore, config.App().GetBool("FastSync"))
// Get MempoolReactor
mempool := mempl.NewMempool(state.Copy())
mempoolReactor := mempl.NewMempoolReactor(mempool)
// Get ConsensusReactor
consensusState := consensus.NewConsensusState(state, blockStore, mempoolReactor)
consensusReactor := consensus.NewConsensusReactor(consensusState, blockStore)
if privValidator != nil {
consensusReactor.SetPrivValidator(privValidator)
}
sw := p2p.NewSwitch()
sw.SetNetwork(config.App().GetString("Network"))
sw.AddReactor("PEX", pexReactor)
sw.AddReactor("MEMPOOL", mempoolReactor)
sw.AddReactor("BLOCKCHAIN", bcReactor)
sw.AddReactor("CONSENSUS", consensusReactor)
return &Node{
sw: sw,
book: book,
blockStore: blockStore,
pexReactor: pexReactor,
bcReactor: bcReactor,
mempoolReactor: mempoolReactor,
consensusState: consensusState,
consensusReactor: consensusReactor,
privValidator: privValidator,
}
}
func (n *Node) Start() {
log.Info("Starting Node")
n.book.Start()
n.sw.Reactor("PEX").Start(n.sw)
n.sw.Reactor("MEMPOOL").Start(n.sw)
n.sw.Reactor("BLOCKCHAIN").Start(n.sw)
if !config.App().GetBool("FastSync") {
n.sw.Reactor("CONSENSUS").Start(n.sw)
}
}
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(Fmt("Added %v", l))
n.sw.AddListener(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 (n *Node) DialSeed() {
addr := p2p.NewNetAddressString(config.App().GetString("SeedNode"))
peer, err := n.sw.DialPeerWithAddress(addr)
if err != nil {
log.Error("Error dialing seed", "error", err)
//n.book.MarkAttempt(addr)
return
} else {
log.Info("Connected to seed", "peer", peer)
n.book.AddAddress(addr, addr)
}
}
func (n *Node) StartRPC() {
core.SetBlockStore(n.blockStore)
core.SetConsensusState(n.consensusState)
core.SetMempoolReactor(n.mempoolReactor)
core.SetSwitch(n.sw)
rpc.StartHTTPServer()
}
func (n *Node) Switch() *p2p.Switch {
return n.sw
}
func (n *Node) ConsensusState() *consensus.ConsensusState {
return n.consensusState
}
func (n *Node) MempoolReactor() *mempl.MempoolReactor {
return n.mempoolReactor
}
//------------------------------------------------------------------------------
// debora variables
var (
AppName = "tendermint"
SrcPath = "github.com/tendermint/tendermint/cmd"
PublicKey = "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"
DeboraCallPort = 56565
)
type DeboraMode int
const (
DeboraNullMode = iota // debora off by default
DeboraPeerMode // upgradeable
DeboraDevMode // upgrader
)
func deboraBroadcast(n *Node) func([]byte) {
return func(payload []byte) {
msg := &p2p.PexDeboraMessage{Payload: payload}
n.sw.Broadcast(p2p.PexChannel, msg)
}
}
func Daemon(deborable DeboraMode) {
// Add to debora
if deborable == DeboraPeerMode {
// TODO: support debora.logfile
if err := debora.Add(PublicKey, SrcPath, AppName, config.App().GetString("Debora.LogFile")); err != nil {
log.Info("Failed to add program to debora", "error", err)
}
}
// Create & start node
n := NewNode()
l := p2p.NewDefaultListener("tcp", config.App().GetString("ListenAddr"), false)
n.AddListener(l)
n.Start()
if deborable == DeboraDevMode {
log.Info("Running debora-dev server (listen to call)")
debora.DebListenAndServe("tendermint", DeboraCallPort, deboraBroadcast(n))
}
// If seedNode is provided by config, dial out.
if config.App().GetString("SeedNode") != "" {
n.DialSeed()
}
// Run the RPC server.
if config.App().GetString("RPC.HTTP.ListenAddr") != "" {
n.StartRPC()
}
// 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(Fmt("captured %v, exiting..", sig))
cb()
os.Exit(1)
}
}()
select {}
}