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描述文字

Golang ethash.New函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/ethereum/ethash.New函数的典型用法代码示例。如果您正苦于以下问题：Golang New函数的具体用法？Golang New怎么用？Golang New使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了New函数的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: GetChain

func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Database) {
	dataDir := ctx.GlobalString(DataDirFlag.Name)

	blockDb, err := ethdb.NewLDBDatabase(path.Join(dataDir, "blockchain"))
	if err != nil {
		Fatalf("Could not open database: %v", err)
	}

	stateDb, err := ethdb.NewLDBDatabase(path.Join(dataDir, "state"))
	if err != nil {
		Fatalf("Could not open database: %v", err)
	}

	extraDb, err := ethdb.NewLDBDatabase(path.Join(dataDir, "extra"))
	if err != nil {
		Fatalf("Could not open database: %v", err)
	}

	eventMux := new(event.TypeMux)
	chainManager := core.NewChainManager(blockDb, stateDb, eventMux)
	pow := ethash.New()
	txPool := core.NewTxPool(eventMux, chainManager.State, chainManager.GasLimit)
	blockProcessor := core.NewBlockProcessor(stateDb, extraDb, pow, txPool, chainManager, eventMux)
	chainManager.SetProcessor(blockProcessor)

	return chainManager, blockDb, stateDb
}
开发者ID:CedarLogic，项目名称:go-ethereum，代码行数:27，代码来源:flags.go


示例2: MakeChain

// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.ChainManager, chainDb common.Database) {
	datadir := ctx.GlobalString(DataDirFlag.Name)
	cache := ctx.GlobalInt(CacheFlag.Name)

	var err error
	if chainDb, err = ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache); err != nil {
		Fatalf("Could not open database: %v", err)
	}
	if ctx.GlobalBool(OlympicFlag.Name) {
		InitOlympic()
		_, err := core.WriteTestNetGenesisBlock(chainDb, 42)
		if err != nil {
			glog.Fatalln(err)
		}
	}

	eventMux := new(event.TypeMux)
	pow := ethash.New()
	//genesis := core.GenesisBlock(uint64(ctx.GlobalInt(GenesisNonceFlag.Name)), blockDB)
	chain, err = core.NewChainManager(chainDb, nil, pow, eventMux)
	if err != nil {
		Fatalf("Could not start chainmanager: %v", err)
	}

	proc := core.NewBlockProcessor(chainDb, pow, chain, eventMux)
	chain.SetProcessor(proc)
	return chain, chainDb
}
开发者ID:codeaudit，项目名称:shift，代码行数:29，代码来源:flags.go


示例3: MakeChain

// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.ChainManager, blockDB, stateDB, extraDB common.Database) {
	dd := ctx.GlobalString(DataDirFlag.Name)
	var err error
	if blockDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "blockchain")); err != nil {
		Fatalf("Could not open database: %v", err)
	}
	if stateDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "state")); err != nil {
		Fatalf("Could not open database: %v", err)
	}
	if extraDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "extra")); err != nil {
		Fatalf("Could not open database: %v", err)
	}

	eventMux := new(event.TypeMux)
	pow := ethash.New()
	genesis := core.GenesisBlock(uint64(ctx.GlobalInt(GenesisNonceFlag.Name)), blockDB)
	chain, err = core.NewChainManager(genesis, blockDB, stateDB, pow, eventMux)
	if err != nil {
		Fatalf("Could not start chainmanager: %v", err)
	}

	proc := core.NewBlockProcessor(stateDB, extraDB, pow, chain, eventMux)
	chain.SetProcessor(proc)
	return chain, blockDB, stateDB, extraDB
}
开发者ID:ssonneborn22，项目名称:go-ethereum，代码行数:26，代码来源:flags.go


示例4: MakeChain

// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database) {
	datadir := MustMakeDataDir(ctx)
	cache := ctx.GlobalInt(CacheFlag.Name)
	handles := MakeDatabaseHandles()

	var err error
	if chainDb, err = ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache, handles); err != nil {
		Fatalf("Could not open database: %v", err)
	}
	if ctx.GlobalBool(OlympicFlag.Name) {
		_, err := core.WriteTestNetGenesisBlock(chainDb)
		if err != nil {
			glog.Fatalln(err)
		}
	}

	eventMux := new(event.TypeMux)
	pow := ethash.New()
	//genesis := core.GenesisBlock(uint64(ctx.GlobalInt(GenesisNonceFlag.Name)), blockDB)
	chain, err = core.NewBlockChain(chainDb, pow, eventMux)
	if err != nil {
		Fatalf("Could not start chainmanager: %v", err)
	}
	return chain, chainDb
}
开发者ID:obscuren，项目名称:etherapis，代码行数:26，代码来源:flags.go


示例5: MakeChain

// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database) {
	var err error
	chainDb = MakeChainDatabase(ctx)

	if ctx.GlobalBool(OlympicFlag.Name) {
		_, err := core.WriteTestNetGenesisBlock(chainDb)
		if err != nil {
			glog.Fatalln(err)
		}
	}
	chainConfig := MustMakeChainConfigFromDb(ctx, chainDb)

	pow := pow.PoW(core.FakePow{})
	if !ctx.GlobalBool(FakePoWFlag.Name) {
		pow = ethash.New()
	}
	chain, err = core.NewBlockChain(chainDb, chainConfig, pow, new(event.TypeMux))
	if err != nil {
		Fatalf("Could not start chainmanager: %v", err)
	}
	return chain, chainDb
}
开发者ID:Xiaoyang-Zhu，项目名称:go-ethereum，代码行数:23，代码来源:flags.go


示例6: 

var invalidRequest = `{
  "id":64,
  "jsonrpc": "2.0",
  "result": false,
  "error": "invalid request"
}`

var okRequest = `{
  "id":64,
  "jsonrpc": "2.0",
  "result": true
}`

var pow256 = common.BigPow(2, 256)

var hasher = ethash.New()

var secret = "CHANGETHIS"
var poolPort = "5082"
var ethereumPort = "8545" //8545 = geth, 8080 = eth (requires dev branch when using eth client)

var logInfo *log.Logger
var logError *log.Logger

type ResponseArray struct {
	Id      int           `json:"id"`
	Jsonrpc string        `json:"jsonrpc"`
	Result  []interface{} `json:"result"`
}

type ResponseJSON struct {
开发者ID:dakk，项目名称:ethpool.py，代码行数:31，代码来源:pool.go


示例7: New

func New(config *Config) (*Ethereum, error) {
	// Bootstrap database
	logger.New(config.DataDir, config.LogFile, config.Verbosity)
	if len(config.LogJSON) > 0 {
		logger.NewJSONsystem(config.DataDir, config.LogJSON)
	}

	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 256 / (dbCount + 1)

	newdb := config.NewDB
	if newdb == nil {
		newdb = func(path string) (common.Database, error) { return ethdb.NewLDBDatabase(path) }
	}
	blockDb, err := newdb(filepath.Join(config.DataDir, "blockchain"))
	if err != nil {
		return nil, fmt.Errorf("blockchain db err: %v", err)
	}
	stateDb, err := newdb(filepath.Join(config.DataDir, "state"))
	if err != nil {
		return nil, fmt.Errorf("state db err: %v", err)
	}
	extraDb, err := newdb(filepath.Join(config.DataDir, "extra"))
	if err != nil {
		return nil, fmt.Errorf("extra db err: %v", err)
	}
	nodeDb := filepath.Join(config.DataDir, "nodes")

	// Perform database sanity checks
	d, _ := blockDb.Get([]byte("ProtocolVersion"))
	protov := int(common.NewValue(d).Uint())
	if protov != config.ProtocolVersion && protov != 0 {
		path := filepath.Join(config.DataDir, "blockchain")
		return nil, fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, config.ProtocolVersion, path)
	}
	saveProtocolVersion(blockDb, config.ProtocolVersion)
	glog.V(logger.Info).Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)

	if !config.SkipBcVersionCheck {
		b, _ := blockDb.Get([]byte("BlockchainVersion"))
		bcVersion := int(common.NewValue(b).Uint())
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		saveBlockchainVersion(blockDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:    make(chan bool),
		databasesClosed: make(chan bool),
		blockDb:         blockDb,
		stateDb:         stateDb,
		extraDb:         extraDb,
		eventMux:        &event.TypeMux{},
		accountManager:  config.AccountManager,
		DataDir:         config.DataDir,
		etherbase:       common.HexToAddress(config.Etherbase),
		clientVersion:   config.Name, // TODO should separate from Name
		ethVersionId:    config.ProtocolVersion,
		netVersionId:    config.NetworkId,
		NatSpec:         config.NatSpec,
	}

	eth.chainManager = core.NewChainManager(blockDb, stateDb, eth.EventMux())
	eth.downloader = downloader.New(eth.chainManager.HasBlock, eth.chainManager.GetBlock)
	eth.pow = ethash.New()
	eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit)
	eth.blockProcessor = core.NewBlockProcessor(stateDb, extraDb, eth.pow, eth.txPool, eth.chainManager, eth.EventMux())
	eth.chainManager.SetProcessor(eth.blockProcessor)
	eth.miner = miner.New(eth, eth.pow)
	eth.miner.SetGasPrice(config.GasPrice)

	eth.protocolManager = NewProtocolManager(config.ProtocolVersion, config.NetworkId, eth.eventMux, eth.txPool, eth.chainManager, eth.downloader)
	if config.Shh {
		eth.whisper = whisper.New()
		eth.shhVersionId = int(eth.whisper.Version())
	}

	netprv, err := config.nodeKey()
	if err != nil {
		return nil, err
	}
	protocols := []p2p.Protocol{eth.protocolManager.SubProtocol}
	if config.Shh {
		protocols = append(protocols, eth.whisper.Protocol())
	}
	eth.net = &p2p.Server{
		PrivateKey:      netprv,
		Name:            config.Name,
		MaxPeers:        config.MaxPeers,
		MaxPendingPeers: config.MaxPendingPeers,
		Protocols:       protocols,
		NAT:             config.NAT,
		NoDial:          !config.Dial,
		BootstrapNodes:  config.parseBootNodes(),
		StaticNodes:     config.parseNodes(staticNodes),
		TrustedNodes:    config.parseNodes(trustedNodes),
		NodeDatabase:    nodeDb,
//.........这里部分代码省略.........
开发者ID:hiroshi1tanaka，项目名称:gethkey，代码行数:101，代码来源:backend.go


示例8: New

func New(config *Config) (*Ethereum, error) {
	// Bootstrap database
	logger.New(config.DataDir, config.LogFile, config.Verbosity)
	if len(config.LogJSON) > 0 {
		logger.NewJSONsystem(config.DataDir, config.LogJSON)
	}

	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 128 / (dbCount + 1)

	newdb := config.NewDB
	if newdb == nil {
		newdb = func(path string) (common.Database, error) { return ethdb.NewLDBDatabase(path, config.DatabaseCache) }
	}
	blockDb, err := newdb(filepath.Join(config.DataDir, "blockchain"))
	if err != nil {
		return nil, fmt.Errorf("blockchain db err: %v", err)
	}
	if db, ok := blockDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/block/")
	}
	stateDb, err := newdb(filepath.Join(config.DataDir, "state"))
	if err != nil {
		return nil, fmt.Errorf("state db err: %v", err)
	}
	if db, ok := stateDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/state/")
	}
	extraDb, err := newdb(filepath.Join(config.DataDir, "extra"))
	if err != nil {
		return nil, fmt.Errorf("extra db err: %v", err)
	}
	if db, ok := extraDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/extra/")
	}
	nodeDb := filepath.Join(config.DataDir, "nodes")
	glog.V(logger.Info).Infof("Protocol Versions: %v, Network Id: %v", ProtocolVersions, config.NetworkId)

	if len(config.GenesisFile) > 0 {
		fr, err := os.Open(config.GenesisFile)
		if err != nil {
			return nil, err
		}

		block, err := core.WriteGenesisBlock(stateDb, blockDb, fr)
		if err != nil {
			return nil, err
		}
		glog.V(logger.Info).Infof("Successfully wrote genesis block. New genesis hash = %x\n", block.Hash())
	}

	if config.Olympic {
		_, err := core.WriteTestNetGenesisBlock(stateDb, blockDb, 42)
		if err != nil {
			return nil, err
		}
		glog.V(logger.Error).Infoln("Starting Olympic network")
	}

	// This is for testing only.
	if config.GenesisBlock != nil {
		core.WriteBlock(blockDb, config.GenesisBlock)
		core.WriteHead(blockDb, config.GenesisBlock)
	}

	if !config.SkipBcVersionCheck {
		b, _ := blockDb.Get([]byte("BlockchainVersion"))
		bcVersion := int(common.NewValue(b).Uint())
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		saveBlockchainVersion(blockDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:            make(chan bool),
		databasesClosed:         make(chan bool),
		blockDb:                 blockDb,
		stateDb:                 stateDb,
		extraDb:                 extraDb,
		eventMux:                &event.TypeMux{},
		accountManager:          config.AccountManager,
		DataDir:                 config.DataDir,
		etherbase:               config.Etherbase,
		clientVersion:           config.Name, // TODO should separate from Name
		netVersionId:            config.NetworkId,
		NatSpec:                 config.NatSpec,
		MinerThreads:            config.MinerThreads,
		SolcPath:                config.SolcPath,
		AutoDAG:                 config.AutoDAG,
		PowTest:                 config.PowTest,
		GpoMinGasPrice:          config.GpoMinGasPrice,
		GpoMaxGasPrice:          config.GpoMaxGasPrice,
		GpoFullBlockRatio:       config.GpoFullBlockRatio,
		GpobaseStepDown:         config.GpobaseStepDown,
		GpobaseStepUp:           config.GpobaseStepUp,
		GpobaseCorrectionFactor: config.GpobaseCorrectionFactor,
	}
//.........这里部分代码省略.........
开发者ID:nilcons-contrib，项目名称:go-ethereum，代码行数:101，代码来源:backend.go


示例9: New

func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
	// Open the chain database and perform any upgrades needed
	chainDb, err := ctx.OpenDatabase("chaindata", config.DatabaseCache, config.DatabaseHandles)
	if err != nil {
		return nil, err
	}
	if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/chaindata/")
	}
	if err := upgradeChainDatabase(chainDb); err != nil {
		return nil, err
	}
	if err := addMipmapBloomBins(chainDb); err != nil {
		return nil, err
	}

	dappDb, err := ctx.OpenDatabase("dapp", config.DatabaseCache, config.DatabaseHandles)
	if err != nil {
		return nil, err
	}
	if db, ok := dappDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/dapp/")
	}
	glog.V(logger.Info).Infof("Protocol Versions: %v, Network Id: %v", ProtocolVersions, config.NetworkId)

	// Load up any custom genesis block if requested
	if len(config.Genesis) > 0 {
		block, err := core.WriteGenesisBlock(chainDb, strings.NewReader(config.Genesis))
		if err != nil {
			return nil, err
		}
		glog.V(logger.Info).Infof("Successfully wrote custom genesis block: %x", block.Hash())
	}

	// Load up a test setup if directly injected
	if config.TestGenesisState != nil {
		chainDb = config.TestGenesisState
	}
	if config.TestGenesisBlock != nil {
		core.WriteTd(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.Difficulty())
		core.WriteBlock(chainDb, config.TestGenesisBlock)
		core.WriteCanonicalHash(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.NumberU64())
		core.WriteHeadBlockHash(chainDb, config.TestGenesisBlock.Hash())
	}

	if !config.SkipBcVersionCheck {
		bcVersion := core.GetBlockChainVersion(chainDb)
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		core.WriteBlockChainVersion(chainDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:            make(chan bool),
		chainDb:                 chainDb,
		dappDb:                  dappDb,
		eventMux:                ctx.EventMux,
		accountManager:          config.AccountManager,
		etherbase:               config.Etherbase,
		netVersionId:            config.NetworkId,
		NatSpec:                 config.NatSpec,
		MinerThreads:            config.MinerThreads,
		SolcPath:                config.SolcPath,
		AutoDAG:                 config.AutoDAG,
		PowTest:                 config.PowTest,
		GpoMinGasPrice:          config.GpoMinGasPrice,
		GpoMaxGasPrice:          config.GpoMaxGasPrice,
		GpoFullBlockRatio:       config.GpoFullBlockRatio,
		GpobaseStepDown:         config.GpobaseStepDown,
		GpobaseStepUp:           config.GpobaseStepUp,
		GpobaseCorrectionFactor: config.GpobaseCorrectionFactor,
		httpclient:              httpclient.New(config.DocRoot),
	}
	switch {
	case config.PowTest:
		glog.V(logger.Info).Infof("ethash used in test mode")
		eth.pow, err = ethash.NewForTesting()
		if err != nil {
			return nil, err
		}
	case config.PowShared:
		glog.V(logger.Info).Infof("ethash used in shared mode")
		eth.pow = ethash.NewShared()

	default:
		eth.pow = ethash.New()
	}

	// load the genesis block or write a new one if no genesis
	// block is prenent in the database.
	genesis := core.GetBlock(chainDb, core.GetCanonicalHash(chainDb, 0))
	if genesis == nil {
		genesis, err = core.WriteDefaultGenesisBlock(chainDb)
		if err != nil {
			return nil, err
		}
		glog.V(logger.Info).Infoln("WARNING: Wrote default ethereum genesis block")
	}
//.........这里部分代码省略.........
开发者ID:Codzart，项目名称:go-ethereum，代码行数:101，代码来源:backend.go


示例10: New

func New(config *Config) (*Ethereum, error) {
	// Bootstrap database
	logger.New(config.DataDir, config.LogFile, config.Verbosity)
	if len(config.LogJSON) > 0 {
		logger.NewJSONsystem(config.DataDir, config.LogJSON)
	}

	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 128 / (dbCount + 1)

	newdb := config.NewDB
	if newdb == nil {
		newdb = func(path string) (common.Database, error) { return ethdb.NewLDBDatabase(path) }
	}
	blockDb, err := newdb(filepath.Join(config.DataDir, "blockchain"))
	if err != nil {
		return nil, fmt.Errorf("blockchain db err: %v", err)
	}
	if db, ok := blockDb.(*ethdb.LDBDatabase); ok {
		db.GetTimer = metrics.NewTimer("eth/db/block/user/gets")
		db.PutTimer = metrics.NewTimer("eth/db/block/user/puts")
		db.MissMeter = metrics.NewMeter("eth/db/block/user/misses")
		db.ReadMeter = metrics.NewMeter("eth/db/block/user/reads")
		db.WriteMeter = metrics.NewMeter("eth/db/block/user/writes")
		db.CompTimeMeter = metrics.NewMeter("eth/db/block/compact/time")
		db.CompReadMeter = metrics.NewMeter("eth/db/block/compact/input")
		db.CompWriteMeter = metrics.NewMeter("eth/db/block/compact/output")
	}
	stateDb, err := newdb(filepath.Join(config.DataDir, "state"))
	if err != nil {
		return nil, fmt.Errorf("state db err: %v", err)
	}
	if db, ok := stateDb.(*ethdb.LDBDatabase); ok {
		db.GetTimer = metrics.NewTimer("eth/db/state/user/gets")
		db.PutTimer = metrics.NewTimer("eth/db/state/user/puts")
		db.MissMeter = metrics.NewMeter("eth/db/state/user/misses")
		db.ReadMeter = metrics.NewMeter("eth/db/state/user/reads")
		db.WriteMeter = metrics.NewMeter("eth/db/state/user/writes")
		db.CompTimeMeter = metrics.NewMeter("eth/db/state/compact/time")
		db.CompReadMeter = metrics.NewMeter("eth/db/state/compact/input")
		db.CompWriteMeter = metrics.NewMeter("eth/db/state/compact/output")
	}
	extraDb, err := newdb(filepath.Join(config.DataDir, "extra"))
	if err != nil {
		return nil, fmt.Errorf("extra db err: %v", err)
	}
	if db, ok := extraDb.(*ethdb.LDBDatabase); ok {
		db.GetTimer = metrics.NewTimer("eth/db/extra/user/gets")
		db.PutTimer = metrics.NewTimer("eth/db/extra/user/puts")
		db.MissMeter = metrics.NewMeter("eth/db/extra/user/misses")
		db.ReadMeter = metrics.NewMeter("eth/db/extra/user/reads")
		db.WriteMeter = metrics.NewMeter("eth/db/extra/user/writes")
		db.CompTimeMeter = metrics.NewMeter("eth/db/extra/compact/time")
		db.CompReadMeter = metrics.NewMeter("eth/db/extra/compact/input")
		db.CompWriteMeter = metrics.NewMeter("eth/db/extra/compact/output")
	}
	nodeDb := filepath.Join(config.DataDir, "nodes")

	// Perform database sanity checks
	d, _ := blockDb.Get([]byte("ProtocolVersion"))
	protov := int(common.NewValue(d).Uint())
	if protov != config.ProtocolVersion && protov != 0 {
		path := filepath.Join(config.DataDir, "blockchain")
		return nil, fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, config.ProtocolVersion, path)
	}
	saveProtocolVersion(blockDb, config.ProtocolVersion)
	glog.V(logger.Info).Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)

	if !config.SkipBcVersionCheck {
		b, _ := blockDb.Get([]byte("BlockchainVersion"))
		bcVersion := int(common.NewValue(b).Uint())
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		saveBlockchainVersion(blockDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:            make(chan bool),
		databasesClosed:         make(chan bool),
		blockDb:                 blockDb,
		stateDb:                 stateDb,
		extraDb:                 extraDb,
		eventMux:                &event.TypeMux{},
		accountManager:          config.AccountManager,
		DataDir:                 config.DataDir,
		etherbase:               common.HexToAddress(config.Etherbase),
		clientVersion:           config.Name, // TODO should separate from Name
		ethVersionId:            config.ProtocolVersion,
		netVersionId:            config.NetworkId,
		NatSpec:                 config.NatSpec,
		MinerThreads:            config.MinerThreads,
		SolcPath:                config.SolcPath,
		AutoDAG:                 config.AutoDAG,
		GpoMinGasPrice:          config.GpoMinGasPrice,
		GpoMaxGasPrice:          config.GpoMaxGasPrice,
		GpoFullBlockRatio:       config.GpoFullBlockRatio,
		GpobaseStepDown:         config.GpobaseStepDown,
//.........这里部分代码省略.........
开发者ID:haegyung，项目名称:go-ethereum，代码行数:101，代码来源:backend.go


示例11: New

func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 128 / (dbCount + 1)

	// Open the chain database and perform any upgrades needed
	chainDb, err := ctx.OpenDatabase("chaindata", config.DatabaseCache)
	if err != nil {
		return nil, err
	}
	if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/chaindata/")
	}
	if err := upgradeChainDatabase(chainDb); err != nil {
		return nil, err
	}
	if err := addMipmapBloomBins(chainDb); err != nil {
		return nil, err
	}

	dappDb, err := ctx.OpenDatabase("dapp", config.DatabaseCache)
	if err != nil {
		return nil, err
	}
	if db, ok := dappDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/dapp/")
	}
	glog.V(logger.Info).Infof("Protocol Versions: %v, Network Id: %v", ProtocolVersions, config.NetworkId)

	// Load up any custom genesis block if requested
	if len(config.Genesis) > 0 {
		block, err := core.WriteGenesisBlock(chainDb, strings.NewReader(config.Genesis))
		if err != nil {
			return nil, err
		}
		glog.V(logger.Info).Infof("Successfully wrote custom genesis block: %x", block.Hash())
	}
	// Load up a test setup if directly injected
	if config.TestGenesisState != nil {
		chainDb = config.TestGenesisState
	}
	if config.TestGenesisBlock != nil {
		core.WriteTd(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.Difficulty())
		core.WriteBlock(chainDb, config.TestGenesisBlock)
		core.WriteCanonicalHash(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.NumberU64())
		core.WriteHeadBlockHash(chainDb, config.TestGenesisBlock.Hash())
	}

	if !config.SkipBcVersionCheck {
		bcVersion := core.GetBlockChainVersion(chainDb)
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		core.WriteBlockChainVersion(chainDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:            make(chan bool),
		chainDb:                 chainDb,
		dappDb:                  dappDb,
		eventMux:                ctx.EventMux,
		accountManager:          config.AccountManager,
		etherbase:               config.Etherbase,
		netVersionId:            config.NetworkId,
		NatSpec:                 config.NatSpec,
		MinerThreads:            config.MinerThreads,
		SolcPath:                config.SolcPath,
		AutoDAG:                 config.AutoDAG,
		PowTest:                 config.PowTest,
		GpoMinGasPrice:          config.GpoMinGasPrice,
		GpoMaxGasPrice:          config.GpoMaxGasPrice,
		GpoFullBlockRatio:       config.GpoFullBlockRatio,
		GpobaseStepDown:         config.GpobaseStepDown,
		GpobaseStepUp:           config.GpobaseStepUp,
		GpobaseCorrectionFactor: config.GpobaseCorrectionFactor,
		httpclient:              httpclient.New(config.DocRoot),
	}
	switch {
	case config.PowTest:
		glog.V(logger.Info).Infof("ethash used in test mode")
		eth.pow, err = ethash.NewForTesting()
		if err != nil {
			return nil, err
		}
	case config.PowShared:
		glog.V(logger.Info).Infof("ethash used in shared mode")
		eth.pow = ethash.NewShared()

	default:
		eth.pow = ethash.New()
	}
	//genesis := core.GenesisBlock(uint64(config.GenesisNonce), stateDb)
	eth.blockchain, err = core.NewBlockChain(chainDb, eth.pow, eth.EventMux())
	if err != nil {
		if err == core.ErrNoGenesis {
			return nil, fmt.Errorf(`Genesis block not found. Please supply a genesis block with the "--genesis /path/to/file" argument`)
		}
		return nil, err
	}
//.........这里部分代码省略.........
开发者ID:karalabe，项目名称:etherapis，代码行数:101，代码来源:backend.go


示例12: New

func New(config *Config) (*Ethereum, error) {
	logger.New(config.DataDir, config.LogFile, config.Verbosity)

	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 128 / (dbCount + 1)

	newdb := config.NewDB
	if newdb == nil {
		newdb = func(path string) (ethdb.Database, error) { return ethdb.NewLDBDatabase(path, config.DatabaseCache) }
	}

	// Open the chain database and perform any upgrades needed
	chainDb, err := newdb(filepath.Join(config.DataDir, "chaindata"))
	if err != nil {
		if errno, ok := err.(syscall.Errno); ok && datadirInUseErrnos[uint(errno)] {
			err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
		}
		return nil, fmt.Errorf("blockchain db err: %v", err)
	}
	if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/chaindata/")
	}
	if err := upgradeChainDatabase(chainDb); err != nil {
		return nil, err
	}
	if err := addMipmapBloomBins(chainDb); err != nil {
		return nil, err
	}

	dappDb, err := newdb(filepath.Join(config.DataDir, "dapp"))
	if err != nil {
		if errno, ok := err.(syscall.Errno); ok && datadirInUseErrnos[uint(errno)] {
			err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
		}
		return nil, fmt.Errorf("dapp db err: %v", err)
	}
	if db, ok := dappDb.(*ethdb.LDBDatabase); ok {
		db.Meter("eth/db/dapp/")
	}

	nodeDb := filepath.Join(config.DataDir, "nodes")
	glog.V(logger.Info).Infof("Protocol Versions: %v, Network Id: %v", ProtocolVersions, config.NetworkId)

	if len(config.GenesisFile) > 0 {
		fr, err := os.Open(config.GenesisFile)
		if err != nil {
			return nil, err
		}

		block, err := core.WriteGenesisBlock(chainDb, fr)
		if err != nil {
			return nil, err
		}
		glog.V(logger.Info).Infof("Successfully wrote genesis block. New genesis hash = %x\n", block.Hash())
	}

	// different modes
	switch {
	case config.Olympic:
		glog.V(logger.Error).Infoln("Starting Olympic network")
		fallthrough
	case config.DevMode:
		_, err := core.WriteOlympicGenesisBlock(chainDb, 42)
		if err != nil {
			return nil, err
		}
	case config.TestNet:
		state.StartingNonce = 1048576 // (2**20)
		_, err := core.WriteTestNetGenesisBlock(chainDb, 0x6d6f7264656e)
		if err != nil {
			return nil, err
		}
	}
	// This is for testing only.
	if config.GenesisBlock != nil {
		core.WriteTd(chainDb, config.GenesisBlock.Hash(), config.GenesisBlock.Difficulty())
		core.WriteBlock(chainDb, config.GenesisBlock)
		core.WriteCanonicalHash(chainDb, config.GenesisBlock.Hash(), config.GenesisBlock.NumberU64())
		core.WriteHeadBlockHash(chainDb, config.GenesisBlock.Hash())
	}

	if !config.SkipBcVersionCheck {
		b, _ := chainDb.Get([]byte("BlockchainVersion"))
		bcVersion := int(common.NewValue(b).Uint())
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		saveBlockchainVersion(chainDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:            make(chan bool),
		chainDb:                 chainDb,
		dappDb:                  dappDb,
		eventMux:                &event.TypeMux{},
		accountManager:          config.AccountManager,
		DataDir:                 config.DataDir,
		etherbase:               config.Etherbase,
//.........这里部分代码省略.........
开发者ID:j4ustin，项目名称:go-ethereum，代码行数:101，代码来源:backend.go



注：本文中的github.com/ethereum/ethash.New函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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