func upgradeDB(ctx *cli.Context) {
glog.Infoln("Upgrading blockchain database")
chain, chainDb := utils.MakeChain(ctx)
v, _ := chainDb.Get([]byte("BlockchainVersion"))
bcVersion := int(common.NewValue(v).Uint())
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)
chainDb.Put([]byte("BlockchainVersion"), common.NewValue(core.BlockChainVersion).Bytes())
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")
}
}
func saveBlockchainVersion(db common.Database, bcVersion int) {
d, _ := db.Get([]byte("BlockchainVersion"))
blockchainVersion := common.NewValue(d).Uint()
if blockchainVersion == 0 {
db.Put([]byte("BlockchainVersion"), common.NewValue(bcVersion).Bytes())
}
}
func (c *StateObject) GetInstr(pc *big.Int) *common.Value {
if int64(len(c.code)-1) < pc.Int64() {
return common.NewValue(0)
}
return common.NewValueFromBytes([]byte{c.code[pc.Int64()]})
}
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) }
}
// attempt to merge database together, upgrading from an old version
if err := mergeDatabases(config.DataDir, newdb); err != nil {
return nil, err
}
chainDb, err := newdb(filepath.Join(config.DataDir, "chaindata"))
if err != nil {
return nil, fmt.Errorf("blockchain db err: %v", err)
}
if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
db.Meter("eth/db/chaindata/")
}
dappDb, err := newdb(filepath.Join(config.DataDir, "dapp"))
if err != nil {
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())
}
if config.Olympic {
_, err := core.WriteTestNetGenesisBlock(chainDb, 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(chainDb, config.GenesisBlock)
core.WriteHead(chainDb, config.GenesisBlock)
}
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 shift 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),
databasesClosed: make(chan bool),
chainDb: chainDb,
dappDb: dappDb,
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,
}
eth.sqlDB, err = sqldb.NewSQLiteDatabase(filepath.Join(config.DataDir, "sql.db"))
if err != nil {
return nil, err
}
if config.PowTest {
glog.V(logger.Info).Infof("ethash used in test mode")
eth.pow, err = ethash.NewForTesting()
if err != nil {
return nil, err
}
} else {
eth.pow = ethash.New()
}
//genesis := core.GenesisBlock(uint64(config.GenesisNonce), stateDb)
eth.chainManager, err = core.NewChainManager(chainDb, eth.sqlDB, 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
}
eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit)
eth.blockProcessor = core.NewBlockProcessor(chainDb, eth.pow, eth.chainManager, eth.EventMux())
eth.chainManager.SetProcessor(eth.blockProcessor)
eth.protocolManager = NewProtocolManager(config.NetworkId, eth.eventMux, eth.txPool, eth.pow, eth.chainManager)
eth.miner = miner.New(eth, eth.EventMux(), eth.pow)
eth.miner.SetGasPrice(config.GasPrice)
eth.miner.SetExtra(config.ExtraData)
if config.Shh {
eth.whisper = whisper.New()
eth.shhVersionId = int(eth.whisper.Version())
}
netprv, err := config.nodeKey()
if err != nil {
return nil, err
}
protocols := append([]p2p.Protocol{}, eth.protocolManager.SubProtocols...)
if config.Shh {
protocols = append(protocols, eth.whisper.Protocol())
}
eth.net = &p2p.Server{
PrivateKey: netprv,
Name: config.Name,
MaxPeers: config.MaxPeers,
MaxPendingPeers: config.MaxPendingPeers,
Discovery: config.Discovery,
Protocols: protocols,
NAT: config.NAT,
NoDial: !config.Dial,
BootstrapNodes: config.parseBootNodes(),
StaticNodes: config.parseNodes(staticNodes),
TrustedNodes: config.parseNodes(trustedNodes),
NodeDatabase: nodeDb,
}
if len(config.Port) > 0 {
eth.net.ListenAddr = ":" + config.Port
}
vm.Debug = config.VmDebug
eth.sqlDB.Refresh(eth.chainManager)
return eth, nil
}