mirror of https://github.com/poanetwork/quorum.git
630 lines
20 KiB
Go
630 lines
20 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package eth implements the Ethereum protocol.
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package eth
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import (
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"bytes"
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"errors"
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"fmt"
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"math/big"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"sync"
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"time"
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"github.com/ethereum/ethash"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/compiler"
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"github.com/ethereum/go-ethereum/common/httpclient"
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"github.com/ethereum/go-ethereum/common/registrar/ethreg"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/eth/filters"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/logger/glog"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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)
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const (
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epochLength = 30000
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ethashRevision = 23
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autoDAGcheckInterval = 10 * time.Hour
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autoDAGepochHeight = epochLength / 2
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)
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var (
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datadirInUseErrnos = map[uint]bool{11: true, 32: true, 35: true}
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portInUseErrRE = regexp.MustCompile("address already in use")
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)
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type Config struct {
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ChainConfig *core.ChainConfig // chain configuration
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NetworkId int // Network ID to use for selecting peers to connect to
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Genesis string // Genesis JSON to seed the chain database with
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FastSync bool // Enables the state download based fast synchronisation algorithm
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BlockChainVersion int
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SkipBcVersionCheck bool // e.g. blockchain export
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DatabaseCache int
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DatabaseHandles int
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NatSpec bool
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DocRoot string
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AutoDAG bool
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PowTest bool
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PowShared bool
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ExtraData []byte
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AccountManager *accounts.Manager
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Etherbase common.Address
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GasPrice *big.Int
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MinerThreads int
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SolcPath string
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GpoMinGasPrice *big.Int
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GpoMaxGasPrice *big.Int
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GpoFullBlockRatio int
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GpobaseStepDown int
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GpobaseStepUp int
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GpobaseCorrectionFactor int
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EnableJit bool
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ForceJit bool
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TestGenesisBlock *types.Block // Genesis block to seed the chain database with (testing only!)
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TestGenesisState ethdb.Database // Genesis state to seed the database with (testing only!)
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}
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type Ethereum struct {
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chainConfig *core.ChainConfig
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// Channel for shutting down the ethereum
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shutdownChan chan bool
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// DB interfaces
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chainDb ethdb.Database // Block chain database
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dappDb ethdb.Database // Dapp database
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// Handlers
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txPool *core.TxPool
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txMu sync.Mutex
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blockchain *core.BlockChain
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accountManager *accounts.Manager
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pow *ethash.Ethash
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protocolManager *ProtocolManager
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SolcPath string
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solc *compiler.Solidity
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gpo *GasPriceOracle
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GpoMinGasPrice *big.Int
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GpoMaxGasPrice *big.Int
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GpoFullBlockRatio int
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GpobaseStepDown int
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GpobaseStepUp int
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GpobaseCorrectionFactor int
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httpclient *httpclient.HTTPClient
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eventMux *event.TypeMux
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miner *miner.Miner
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Mining bool
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MinerThreads int
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NatSpec bool
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AutoDAG bool
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PowTest bool
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autodagquit chan bool
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etherbase common.Address
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netVersionId int
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netRPCService *PublicNetAPI
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}
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func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
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// Open the chain database and perform any upgrades needed
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chainDb, err := ctx.OpenDatabase("chaindata", config.DatabaseCache, config.DatabaseHandles)
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if err != nil {
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return nil, err
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}
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if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
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db.Meter("eth/db/chaindata/")
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}
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if err := upgradeChainDatabase(chainDb); err != nil {
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return nil, err
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}
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if err := addMipmapBloomBins(chainDb); err != nil {
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return nil, err
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}
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dappDb, err := ctx.OpenDatabase("dapp", config.DatabaseCache, config.DatabaseHandles)
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if err != nil {
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return nil, err
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}
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if db, ok := dappDb.(*ethdb.LDBDatabase); ok {
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db.Meter("eth/db/dapp/")
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}
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glog.V(logger.Info).Infof("Protocol Versions: %v, Network Id: %v", ProtocolVersions, config.NetworkId)
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// Load up any custom genesis block if requested
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if len(config.Genesis) > 0 {
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block, err := core.WriteGenesisBlock(chainDb, strings.NewReader(config.Genesis))
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if err != nil {
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return nil, err
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}
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glog.V(logger.Info).Infof("Successfully wrote custom genesis block: %x", block.Hash())
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}
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// Load up a test setup if directly injected
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if config.TestGenesisState != nil {
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chainDb = config.TestGenesisState
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}
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if config.TestGenesisBlock != nil {
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core.WriteTd(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.Difficulty())
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core.WriteBlock(chainDb, config.TestGenesisBlock)
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core.WriteCanonicalHash(chainDb, config.TestGenesisBlock.Hash(), config.TestGenesisBlock.NumberU64())
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core.WriteHeadBlockHash(chainDb, config.TestGenesisBlock.Hash())
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}
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if !config.SkipBcVersionCheck {
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bcVersion := core.GetBlockChainVersion(chainDb)
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if bcVersion != config.BlockChainVersion && bcVersion != 0 {
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return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
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}
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core.WriteBlockChainVersion(chainDb, config.BlockChainVersion)
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}
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glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)
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eth := &Ethereum{
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shutdownChan: make(chan bool),
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chainDb: chainDb,
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dappDb: dappDb,
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eventMux: ctx.EventMux,
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accountManager: config.AccountManager,
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etherbase: config.Etherbase,
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netVersionId: config.NetworkId,
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NatSpec: config.NatSpec,
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MinerThreads: config.MinerThreads,
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SolcPath: config.SolcPath,
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AutoDAG: config.AutoDAG,
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PowTest: config.PowTest,
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GpoMinGasPrice: config.GpoMinGasPrice,
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GpoMaxGasPrice: config.GpoMaxGasPrice,
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GpoFullBlockRatio: config.GpoFullBlockRatio,
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GpobaseStepDown: config.GpobaseStepDown,
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GpobaseStepUp: config.GpobaseStepUp,
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GpobaseCorrectionFactor: config.GpobaseCorrectionFactor,
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httpclient: httpclient.New(config.DocRoot),
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}
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switch {
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case config.PowTest:
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glog.V(logger.Info).Infof("ethash used in test mode")
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eth.pow, err = ethash.NewForTesting()
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if err != nil {
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return nil, err
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}
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case config.PowShared:
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glog.V(logger.Info).Infof("ethash used in shared mode")
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eth.pow = ethash.NewShared()
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default:
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eth.pow = ethash.New()
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}
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// load the genesis block or write a new one if no genesis
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// block is prenent in the database.
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genesis := core.GetBlock(chainDb, core.GetCanonicalHash(chainDb, 0))
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if genesis == nil {
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genesis, err = core.WriteDefaultGenesisBlock(chainDb)
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if err != nil {
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return nil, err
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}
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glog.V(logger.Info).Infoln("WARNING: Wrote default ethereum genesis block")
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}
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if config.ChainConfig == nil {
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return nil, errors.New("missing chain config")
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}
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eth.chainConfig = config.ChainConfig
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eth.chainConfig.VmConfig = vm.Config{
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EnableJit: config.EnableJit,
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ForceJit: config.ForceJit,
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}
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eth.blockchain, err = core.NewBlockChain(chainDb, eth.chainConfig, eth.pow, eth.EventMux())
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if err != nil {
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if err == core.ErrNoGenesis {
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return nil, fmt.Errorf(`No chain found. Please initialise a new chain using the "init" subcommand.`)
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}
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return nil, err
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}
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eth.gpo = NewGasPriceOracle(eth)
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newPool := core.NewTxPool(eth.chainConfig, eth.EventMux(), eth.blockchain.State, eth.blockchain.GasLimit)
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eth.txPool = newPool
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if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.FastSync, config.NetworkId, eth.eventMux, eth.txPool, eth.pow, eth.blockchain, chainDb); err != nil {
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return nil, err
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}
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eth.miner = miner.New(eth, eth.chainConfig, eth.EventMux(), eth.pow)
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eth.miner.SetGasPrice(config.GasPrice)
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eth.miner.SetExtra(config.ExtraData)
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return eth, nil
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}
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// APIs returns the collection of RPC services the ethereum package offers.
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// NOTE, some of these services probably need to be moved to somewhere else.
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func (s *Ethereum) APIs() []rpc.API {
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return []rpc.API{
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{
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Namespace: "eth",
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Version: "1.0",
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Service: NewPublicEthereumAPI(s),
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Public: true,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: NewPublicAccountAPI(s.accountManager),
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Public: true,
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}, {
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Namespace: "personal",
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Version: "1.0",
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Service: NewPrivateAccountAPI(s),
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Public: false,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: NewPublicBlockChainAPI(s.chainConfig, s.blockchain, s.miner, s.chainDb, s.gpo, s.eventMux, s.accountManager),
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Public: true,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: NewPublicTransactionPoolAPI(s),
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Public: true,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: NewPublicMinerAPI(s),
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Public: true,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: downloader.NewPublicDownloaderAPI(s.protocolManager.downloader, s.eventMux),
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Public: true,
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}, {
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Namespace: "miner",
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Version: "1.0",
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Service: NewPrivateMinerAPI(s),
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Public: false,
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}, {
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Namespace: "txpool",
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Version: "1.0",
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Service: NewPublicTxPoolAPI(s),
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Public: true,
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}, {
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Namespace: "eth",
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Version: "1.0",
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Service: filters.NewPublicFilterAPI(s.chainDb, s.eventMux),
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Public: true,
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}, {
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Namespace: "admin",
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Version: "1.0",
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Service: NewPrivateAdminAPI(s),
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}, {
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Namespace: "debug",
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Version: "1.0",
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Service: NewPublicDebugAPI(s),
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Public: true,
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}, {
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Namespace: "debug",
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Version: "1.0",
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Service: NewPrivateDebugAPI(s.chainConfig, s),
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}, {
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Namespace: "net",
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Version: "1.0",
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Service: s.netRPCService,
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Public: true,
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}, {
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Namespace: "admin",
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Version: "1.0",
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Service: ethreg.NewPrivateRegistarAPI(s.chainConfig, s.blockchain, s.chainDb, s.txPool, s.accountManager),
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},
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}
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}
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func (s *Ethereum) ResetWithGenesisBlock(gb *types.Block) {
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s.blockchain.ResetWithGenesisBlock(gb)
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}
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func (s *Ethereum) Etherbase() (eb common.Address, err error) {
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eb = s.etherbase
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if (eb == common.Address{}) {
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firstAccount, err := s.AccountManager().AccountByIndex(0)
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eb = firstAccount.Address
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if err != nil {
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return eb, fmt.Errorf("etherbase address must be explicitly specified")
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}
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}
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return eb, nil
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}
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// set in js console via admin interface or wrapper from cli flags
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func (self *Ethereum) SetEtherbase(etherbase common.Address) {
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self.etherbase = etherbase
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self.miner.SetEtherbase(etherbase)
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}
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func (s *Ethereum) StopMining() { s.miner.Stop() }
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func (s *Ethereum) IsMining() bool { return s.miner.Mining() }
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func (s *Ethereum) Miner() *miner.Miner { return s.miner }
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func (s *Ethereum) AccountManager() *accounts.Manager { return s.accountManager }
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func (s *Ethereum) BlockChain() *core.BlockChain { return s.blockchain }
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func (s *Ethereum) TxPool() *core.TxPool { return s.txPool }
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func (s *Ethereum) EventMux() *event.TypeMux { return s.eventMux }
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func (s *Ethereum) ChainDb() ethdb.Database { return s.chainDb }
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func (s *Ethereum) DappDb() ethdb.Database { return s.dappDb }
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func (s *Ethereum) IsListening() bool { return true } // Always listening
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func (s *Ethereum) EthVersion() int { return int(s.protocolManager.SubProtocols[0].Version) }
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func (s *Ethereum) NetVersion() int { return s.netVersionId }
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func (s *Ethereum) Downloader() *downloader.Downloader { return s.protocolManager.downloader }
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// Protocols implements node.Service, returning all the currently configured
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// network protocols to start.
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func (s *Ethereum) Protocols() []p2p.Protocol {
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return s.protocolManager.SubProtocols
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}
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// Start implements node.Service, starting all internal goroutines needed by the
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// Ethereum protocol implementation.
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func (s *Ethereum) Start(srvr *p2p.Server) error {
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if s.AutoDAG {
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s.StartAutoDAG()
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}
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s.protocolManager.Start()
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s.netRPCService = NewPublicNetAPI(srvr, s.NetVersion())
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return nil
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}
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// Stop implements node.Service, terminating all internal goroutines used by the
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// Ethereum protocol.
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func (s *Ethereum) Stop() error {
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s.blockchain.Stop()
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s.protocolManager.Stop()
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s.txPool.Stop()
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s.miner.Stop()
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s.eventMux.Stop()
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s.StopAutoDAG()
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s.chainDb.Close()
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s.dappDb.Close()
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close(s.shutdownChan)
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return nil
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}
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// This function will wait for a shutdown and resumes main thread execution
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func (s *Ethereum) WaitForShutdown() {
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<-s.shutdownChan
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}
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// StartAutoDAG() spawns a go routine that checks the DAG every autoDAGcheckInterval
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// by default that is 10 times per epoch
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// in epoch n, if we past autoDAGepochHeight within-epoch blocks,
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// it calls ethash.MakeDAG to pregenerate the DAG for the next epoch n+1
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// if it does not exist yet as well as remove the DAG for epoch n-1
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// the loop quits if autodagquit channel is closed, it can safely restart and
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// stop any number of times.
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// For any more sophisticated pattern of DAG generation, use CLI subcommand
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// makedag
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func (self *Ethereum) StartAutoDAG() {
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if self.autodagquit != nil {
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return // already started
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}
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go func() {
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glog.V(logger.Info).Infof("Automatic pregeneration of ethash DAG ON (ethash dir: %s)", ethash.DefaultDir)
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var nextEpoch uint64
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timer := time.After(0)
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self.autodagquit = make(chan bool)
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for {
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select {
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case <-timer:
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glog.V(logger.Info).Infof("checking DAG (ethash dir: %s)", ethash.DefaultDir)
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currentBlock := self.BlockChain().CurrentBlock().NumberU64()
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thisEpoch := currentBlock / epochLength
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if nextEpoch <= thisEpoch {
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if currentBlock%epochLength > autoDAGepochHeight {
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if thisEpoch > 0 {
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previousDag, previousDagFull := dagFiles(thisEpoch - 1)
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os.Remove(filepath.Join(ethash.DefaultDir, previousDag))
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os.Remove(filepath.Join(ethash.DefaultDir, previousDagFull))
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glog.V(logger.Info).Infof("removed DAG for epoch %d (%s)", thisEpoch-1, previousDag)
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}
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nextEpoch = thisEpoch + 1
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dag, _ := dagFiles(nextEpoch)
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if _, err := os.Stat(dag); os.IsNotExist(err) {
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glog.V(logger.Info).Infof("Pregenerating DAG for epoch %d (%s)", nextEpoch, dag)
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err := ethash.MakeDAG(nextEpoch*epochLength, "") // "" -> ethash.DefaultDir
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if err != nil {
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glog.V(logger.Error).Infof("Error generating DAG for epoch %d (%s)", nextEpoch, dag)
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return
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}
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} else {
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glog.V(logger.Error).Infof("DAG for epoch %d (%s)", nextEpoch, dag)
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}
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}
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}
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timer = time.After(autoDAGcheckInterval)
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case <-self.autodagquit:
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return
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}
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}
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}()
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}
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|
// stopAutoDAG stops automatic DAG pregeneration by quitting the loop
|
|
func (self *Ethereum) StopAutoDAG() {
|
|
if self.autodagquit != nil {
|
|
close(self.autodagquit)
|
|
self.autodagquit = nil
|
|
}
|
|
glog.V(logger.Info).Infof("Automatic pregeneration of ethash DAG OFF (ethash dir: %s)", ethash.DefaultDir)
|
|
}
|
|
|
|
// HTTPClient returns the light http client used for fetching offchain docs
|
|
// (natspec, source for verification)
|
|
func (self *Ethereum) HTTPClient() *httpclient.HTTPClient {
|
|
return self.httpclient
|
|
}
|
|
|
|
func (self *Ethereum) Solc() (*compiler.Solidity, error) {
|
|
var err error
|
|
if self.solc == nil {
|
|
self.solc, err = compiler.New(self.SolcPath)
|
|
}
|
|
return self.solc, err
|
|
}
|
|
|
|
// set in js console via admin interface or wrapper from cli flags
|
|
func (self *Ethereum) SetSolc(solcPath string) (*compiler.Solidity, error) {
|
|
self.SolcPath = solcPath
|
|
self.solc = nil
|
|
return self.Solc()
|
|
}
|
|
|
|
// dagFiles(epoch) returns the two alternative DAG filenames (not a path)
|
|
// 1) <revision>-<hex(seedhash[8])> 2) full-R<revision>-<hex(seedhash[8])>
|
|
func dagFiles(epoch uint64) (string, string) {
|
|
seedHash, _ := ethash.GetSeedHash(epoch * epochLength)
|
|
dag := fmt.Sprintf("full-R%d-%x", ethashRevision, seedHash[:8])
|
|
return dag, "full-R" + dag
|
|
}
|
|
|
|
// upgradeChainDatabase ensures that the chain database stores block split into
|
|
// separate header and body entries.
|
|
func upgradeChainDatabase(db ethdb.Database) error {
|
|
// Short circuit if the head block is stored already as separate header and body
|
|
data, err := db.Get([]byte("LastBlock"))
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
head := common.BytesToHash(data)
|
|
|
|
if block := core.GetBlockByHashOld(db, head); block == nil {
|
|
return nil
|
|
}
|
|
// At least some of the database is still the old format, upgrade (skip the head block!)
|
|
glog.V(logger.Info).Info("Old database detected, upgrading...")
|
|
|
|
if db, ok := db.(*ethdb.LDBDatabase); ok {
|
|
blockPrefix := []byte("block-hash-")
|
|
for it := db.NewIterator(); it.Next(); {
|
|
// Skip anything other than a combined block
|
|
if !bytes.HasPrefix(it.Key(), blockPrefix) {
|
|
continue
|
|
}
|
|
// Skip the head block (merge last to signal upgrade completion)
|
|
if bytes.HasSuffix(it.Key(), head.Bytes()) {
|
|
continue
|
|
}
|
|
// Load the block, split and serialize (order!)
|
|
block := core.GetBlockByHashOld(db, common.BytesToHash(bytes.TrimPrefix(it.Key(), blockPrefix)))
|
|
|
|
if err := core.WriteTd(db, block.Hash(), block.DeprecatedTd()); err != nil {
|
|
return err
|
|
}
|
|
if err := core.WriteBody(db, block.Hash(), block.Body()); err != nil {
|
|
return err
|
|
}
|
|
if err := core.WriteHeader(db, block.Header()); err != nil {
|
|
return err
|
|
}
|
|
if err := db.Delete(it.Key()); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
// Lastly, upgrade the head block, disabling the upgrade mechanism
|
|
current := core.GetBlockByHashOld(db, head)
|
|
|
|
if err := core.WriteTd(db, current.Hash(), current.DeprecatedTd()); err != nil {
|
|
return err
|
|
}
|
|
if err := core.WriteBody(db, current.Hash(), current.Body()); err != nil {
|
|
return err
|
|
}
|
|
if err := core.WriteHeader(db, current.Header()); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func addMipmapBloomBins(db ethdb.Database) (err error) {
|
|
const mipmapVersion uint = 2
|
|
|
|
// check if the version is set. We ignore data for now since there's
|
|
// only one version so we can easily ignore it for now
|
|
var data []byte
|
|
data, _ = db.Get([]byte("setting-mipmap-version"))
|
|
if len(data) > 0 {
|
|
var version uint
|
|
if err := rlp.DecodeBytes(data, &version); err == nil && version == mipmapVersion {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
defer func() {
|
|
if err == nil {
|
|
var val []byte
|
|
val, err = rlp.EncodeToBytes(mipmapVersion)
|
|
if err == nil {
|
|
err = db.Put([]byte("setting-mipmap-version"), val)
|
|
}
|
|
return
|
|
}
|
|
}()
|
|
latestBlock := core.GetBlock(db, core.GetHeadBlockHash(db))
|
|
if latestBlock == nil { // clean database
|
|
return
|
|
}
|
|
|
|
tstart := time.Now()
|
|
glog.V(logger.Info).Infoln("upgrading db log bloom bins")
|
|
for i := uint64(0); i <= latestBlock.NumberU64(); i++ {
|
|
hash := core.GetCanonicalHash(db, i)
|
|
if (hash == common.Hash{}) {
|
|
return fmt.Errorf("chain db corrupted. Could not find block %d.", i)
|
|
}
|
|
core.WriteMipmapBloom(db, i, core.GetBlockReceipts(db, hash))
|
|
}
|
|
glog.V(logger.Info).Infoln("upgrade completed in", time.Since(tstart))
|
|
return nil
|
|
}
|