func upgradeDB(ctx *cli.Context) error {
glog.Infoln("Upgrading blockchain database")
chain, chainDb := utils.MakeChain(ctx)
bcVersion := core.GetBlockChainVersion(chainDb)
if bcVersion == 0 {
bcVersion = core.BlockChainVersion
}
// Export the current chain.
filename := fmt.Sprintf("blockchain_%d_%s.chain", bcVersion, time.Now().Format("20060102_150405"))
exportFile := filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), filename)
if err := utils.ExportChain(chain, exportFile); err != nil {
utils.Fatalf("Unable to export chain for reimport %s", err)
}
chainDb.Close()
os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "chaindata"))
// Import the chain file.
chain, chainDb = utils.MakeChain(ctx)
core.WriteBlockChainVersion(chainDb, core.BlockChainVersion)
err := utils.ImportChain(chain, exportFile)
chainDb.Close()
if err != nil {
utils.Fatalf("Import error %v (a backup is made in %s, use the import command to import it)", err, exportFile)
} else {
os.Remove(exportFile)
glog.Infoln("Import finished")
}
return nil
}
func New(ctx *node.ServiceContext, config *Config) (*Expanse, 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("exp/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("exp/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 gexp upgradedb.\n", bcVersion, config.BlockChainVersion)
}
core.WriteBlockChainVersion(chainDb, config.BlockChainVersion)
}
glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)
exp := &Expanse{
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")
exp.pow, err = ethash.NewForTesting()
if err != nil {
return nil, err
}
case config.PowShared:
glog.V(logger.Info).Infof("ethash used in shared mode")
exp.pow = ethash.NewShared()
default:
exp.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 expanse genesis block")
}
if config.ChainConfig == nil {
return nil, errors.New("missing chain config")
}
core.WriteChainConfig(chainDb, genesis.Hash(), config.ChainConfig)
exp.chainConfig = config.ChainConfig
exp.chainConfig.VmConfig = vm.Config{
EnableJit: config.EnableJit,
ForceJit: config.ForceJit,
}
exp.blockchain, err = core.NewBlockChain(chainDb, exp.chainConfig, exp.pow, exp.EventMux())
if err != nil {
if err == core.ErrNoGenesis {
return nil, fmt.Errorf(`No chain found. Please initialise a new chain using the "init" subcommand.`)
}
return nil, err
}
exp.gpo = NewGasPriceOracle(exp)
newPool := core.NewTxPool(exp.chainConfig, exp.EventMux(), exp.blockchain.State, exp.blockchain.GasLimit)
exp.txPool = newPool
if exp.protocolManager, err = NewProtocolManager(exp.chainConfig, config.FastSync, config.NetworkId, exp.eventMux, exp.txPool, exp.pow, exp.blockchain, chainDb); err != nil {
return nil, err
}
exp.miner = miner.New(exp, exp.chainConfig, exp.EventMux(), exp.pow)
exp.miner.SetGasPrice(config.GasPrice)
exp.miner.SetExtra(config.ExtraData)
return exp, nil
}