12 "github.com/prometheus/prometheus/util/flock"
13 log "github.com/sirupsen/logrus"
14 cmn "github.com/tendermint/tmlibs/common"
15 browser "github.com/toqueteos/webbrowser"
17 "github.com/vapor/accesstoken"
18 "github.com/vapor/account"
19 "github.com/vapor/api"
20 "github.com/vapor/asset"
21 "github.com/vapor/blockchain/pseudohsm"
22 "github.com/vapor/blockchain/txfeed"
23 cfg "github.com/vapor/config"
24 "github.com/vapor/consensus"
25 "github.com/vapor/database"
26 dbm "github.com/vapor/database/leveldb"
27 "github.com/vapor/env"
28 "github.com/vapor/event"
29 "github.com/vapor/mining/cpuminer"
30 "github.com/vapor/net/websocket"
31 "github.com/vapor/netsync"
32 "github.com/vapor/protocol"
33 w "github.com/vapor/wallet"
37 webHost = "http://127.0.0.1"
41 // Node represent bytom node
46 eventDispatcher *event.Dispatcher
47 syncManager *netsync.SyncManager
50 accessTokens *accesstoken.CredentialStore
51 notificationMgr *websocket.WSNotificationManager
54 txfeed *txfeed.Tracker
55 cpuMiner *cpuminer.CPUMiner
59 // NewNode create bytom node
60 func NewNode(config *cfg.Config) *Node {
61 ctx := context.Background()
62 if err := lockDataDirectory(config); err != nil {
63 cmn.Exit("Error: " + err.Error())
65 if err := cfg.LoadFederationFile(config.FederationFile(), config); err != nil {
66 cmn.Exit(cmn.Fmt("Failed to load federated information:[%s]", err.Error()))
69 initActiveNetParams(config)
70 initCommonConfig(config)
73 if config.DBBackend != "memdb" && config.DBBackend != "leveldb" {
74 cmn.Exit(cmn.Fmt("Param db_backend [%v] is invalid, use leveldb or memdb", config.DBBackend))
76 coreDB := dbm.NewDB("core", config.DBBackend, config.DBDir())
77 store := database.NewStore(coreDB)
79 tokenDB := dbm.NewDB("accesstoken", config.DBBackend, config.DBDir())
80 accessTokens := accesstoken.NewStore(tokenDB)
82 dispatcher := event.NewDispatcher()
83 txPool := protocol.NewTxPool(store, dispatcher)
84 chain, err := protocol.NewChain(store, txPool, dispatcher)
86 cmn.Exit(cmn.Fmt("Failed to create chain structure: %v", err))
89 var accounts *account.Manager
90 var assets *asset.Registry
92 var txFeed *txfeed.Tracker
94 txFeedDB := dbm.NewDB("txfeeds", config.DBBackend, config.DBDir())
95 txFeed = txfeed.NewTracker(txFeedDB, chain)
97 if err = txFeed.Prepare(ctx); err != nil {
98 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("start txfeed")
102 hsm, err := pseudohsm.New(config.KeysDir())
104 cmn.Exit(cmn.Fmt("initialize HSM failed: %v", err))
107 if !config.Wallet.Disable {
108 walletDB := dbm.NewDB("wallet", config.DBBackend, config.DBDir())
109 accounts = account.NewManager(walletDB, chain)
110 assets = asset.NewRegistry(walletDB, chain)
111 wallet, err = w.NewWallet(walletDB, accounts, assets, hsm, chain, dispatcher, config.Wallet.TxIndex)
113 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("init NewWallet")
116 // trigger rescan wallet
117 if config.Wallet.Rescan {
118 wallet.RescanBlocks()
122 syncManager, err := netsync.NewSyncManager(config, chain, txPool, dispatcher)
124 cmn.Exit(cmn.Fmt("Failed to create sync manager: %v", err))
127 notificationMgr := websocket.NewWsNotificationManager(config.Websocket.MaxNumWebsockets, config.Websocket.MaxNumConcurrentReqs, chain, dispatcher)
129 // run the profile server
130 profileHost := config.ProfListenAddress
131 if profileHost != "" {
132 // Profiling bytomd programs.see (https://blog.golang.org/profiling-go-programs)
133 // go tool pprof http://profileHose/debug/pprof/heap
135 if err = http.ListenAndServe(profileHost, nil); err != nil {
136 cmn.Exit(cmn.Fmt("Failed to register tcp profileHost: %v", err))
142 eventDispatcher: dispatcher,
144 syncManager: syncManager,
145 accessTokens: accessTokens,
149 miningEnable: config.Mining,
151 notificationMgr: notificationMgr,
154 node.cpuMiner = cpuminer.NewCPUMiner(chain, accounts, txPool, dispatcher)
155 node.BaseService = *cmn.NewBaseService(nil, "Node", node)
159 // Lock data directory after daemonization
160 func lockDataDirectory(config *cfg.Config) error {
161 _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
163 return errors.New("datadir already used by another process")
168 func initActiveNetParams(config *cfg.Config) {
170 consensus.ActiveNetParams, exist = consensus.NetParams[config.ChainID]
172 cmn.Exit(cmn.Fmt("chain_id[%v] don't exist", config.ChainID))
176 func initLogFile(config *cfg.Config) {
177 if config.LogFile == "" {
180 cmn.EnsureDir(filepath.Dir(config.LogFile), 0700)
181 file, err := os.OpenFile(config.LogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
185 log.WithFields(log.Fields{"module": logModule, "err": err}).Info("using default")
190 func initCommonConfig(config *cfg.Config) {
191 cfg.CommonConfig = config
194 // Lanch web broser or not
195 func launchWebBrowser(port string) {
196 webAddress := webHost + ":" + port
197 log.Info("Launching System Browser with :", webAddress)
198 if err := browser.Open(webAddress); err != nil {
199 log.Error(err.Error())
204 func (n *Node) initAndstartAPIServer() {
205 n.api = api.NewAPI(n.syncManager, n.wallet, n.txfeed, n.cpuMiner, n.chain, n.config, n.accessTokens, n.eventDispatcher, n.notificationMgr)
207 listenAddr := env.String("LISTEN", n.config.ApiAddress)
209 n.api.StartServer(*listenAddr)
212 func (n *Node) OnStart() error {
214 if _, err := n.wallet.AccountMgr.GetMiningAddress(); err != nil {
215 n.miningEnable = false
221 if !n.config.VaultMode {
222 if err := n.syncManager.Start(); err != nil {
227 n.initAndstartAPIServer()
228 if err := n.notificationMgr.Start(); err != nil {
232 if !n.config.Web.Closed {
233 _, port, err := net.SplitHostPort(n.config.ApiAddress)
235 log.Error("Invalid api address")
238 launchWebBrowser(port)
243 func (n *Node) OnStop() {
244 n.notificationMgr.Shutdown()
245 n.notificationMgr.WaitForShutdown()
246 n.BaseService.OnStop()
250 if !n.config.VaultMode {
253 n.eventDispatcher.Stop()
256 func (n *Node) RunForever() {
257 // Sleep forever and then...
258 cmn.TrapSignal(func() {