11 "github.com/prometheus/prometheus/util/flock"
12 log "github.com/sirupsen/logrus"
13 cmn "github.com/tendermint/tmlibs/common"
14 browser "github.com/toqueteos/webbrowser"
16 "github.com/bytom/bytom/accesstoken"
17 "github.com/bytom/bytom/account"
18 "github.com/bytom/bytom/api"
19 "github.com/bytom/bytom/asset"
20 "github.com/bytom/bytom/blockchain/pseudohsm"
21 "github.com/bytom/bytom/blockchain/txfeed"
22 cfg "github.com/bytom/bytom/config"
23 "github.com/bytom/bytom/consensus"
24 "github.com/bytom/bytom/contract"
25 "github.com/bytom/bytom/database"
26 dbm "github.com/bytom/bytom/database/leveldb"
27 "github.com/bytom/bytom/env"
28 "github.com/bytom/bytom/event"
29 bytomLog "github.com/bytom/bytom/log"
31 "github.com/bytom/bytom/net/websocket"
32 "github.com/bytom/bytom/netsync"
33 "github.com/bytom/bytom/protocol"
34 w "github.com/bytom/bytom/wallet"
38 webHost = "http://127.0.0.1"
42 // Node represent bytom node
47 eventDispatcher *event.Dispatcher
48 syncManager *netsync.SyncManager
51 accessTokens *accesstoken.CredentialStore
52 notificationMgr *websocket.WSNotificationManager
55 txfeed *txfeed.Tracker
58 // NewNode create bytom node
59 func NewNode(config *cfg.Config) *Node {
60 ctx := context.Background()
61 if err := lockDataDirectory(config); err != nil {
62 cmn.Exit("Error: " + err.Error())
65 if err := bytomLog.InitLogFile(config); err != nil {
66 log.WithField("err", err).Fatalln("InitLogFile failed")
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)
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 contracts := contract.NewRegistry(walletDB)
112 wallet, err = w.NewWallet(walletDB, accounts, assets, contracts, hsm, chain, dispatcher, config.Wallet.TxIndex)
114 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("init NewWallet")
117 // trigger rescan wallet
118 if config.Wallet.Rescan {
119 wallet.RescanBlocks()
123 fastSyncDB := dbm.NewDB("fastsync", config.DBBackend, config.DBDir())
124 syncManager, err := netsync.NewSyncManager(config, chain, txPool, dispatcher, fastSyncDB)
126 cmn.Exit(cmn.Fmt("Failed to create sync manager: %v", err))
129 notificationMgr := websocket.NewWsNotificationManager(config.Websocket.MaxNumWebsockets, config.Websocket.MaxNumConcurrentReqs, chain, dispatcher)
131 // run the profile server
132 profileHost := config.ProfListenAddress
133 if profileHost != "" {
134 // Profiling bytomd programs.see (https://blog.golang.org/profiling-go-programs)
135 // go tool pprof http://profileHose/debug/pprof/heap
137 if err = http.ListenAndServe(profileHost, nil); err != nil {
138 cmn.Exit(cmn.Fmt("Failed to register tcp profileHost: %v", err))
144 eventDispatcher: dispatcher,
146 syncManager: syncManager,
147 accessTokens: accessTokens,
152 notificationMgr: notificationMgr,
155 node.BaseService = *cmn.NewBaseService(nil, "Node", node)
160 // Lock data directory after daemonization
161 func lockDataDirectory(config *cfg.Config) error {
162 _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
164 return errors.New("datadir already used by another process")
169 func initActiveNetParams(config *cfg.Config) {
171 consensus.ActiveNetParams, exist = consensus.NetParams[config.ChainID]
173 cmn.Exit(cmn.Fmt("chain_id[%v] don't exist", config.ChainID))
177 func initCommonConfig(config *cfg.Config) {
178 cfg.CommonConfig = config
181 // Lanch web broser or not
182 func launchWebBrowser(port string) {
183 webAddress := webHost + ":" + port
184 log.Info("Launching System Browser with :", webAddress)
185 if err := browser.Open(webAddress); err != nil {
186 log.Error(err.Error())
191 func (n *Node) initAndstartAPIServer() {
192 n.api = api.NewAPI(n.syncManager, n.wallet, n.txfeed, n.chain, n.config, n.accessTokens, n.eventDispatcher, n.notificationMgr)
194 listenAddr := env.String("LISTEN", n.config.ApiAddress)
196 n.api.StartServer(*listenAddr)
199 func (n *Node) OnStart() error {
200 if !n.config.VaultMode {
201 if err := n.syncManager.Start(); err != nil {
206 n.initAndstartAPIServer()
207 if err := n.notificationMgr.Start(); err != nil {
211 if !n.config.Web.Closed {
212 _, port, err := net.SplitHostPort(n.config.ApiAddress)
214 log.Error("Invalid api address")
217 launchWebBrowser(port)
222 func (n *Node) OnStop() {
223 n.notificationMgr.Shutdown()
224 n.notificationMgr.WaitForShutdown()
225 n.BaseService.OnStop()
226 if !n.config.VaultMode {
229 n.eventDispatcher.Stop()
232 func (n *Node) RunForever() {
233 // Sleep forever and then...
234 cmn.TrapSignal(func() {