mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-25 21:17:16 +00:00
56ed6152a1
Shutting down geth prints hundreds of annoying error messages in some cases. The errors appear because the Stop method of eth.ProtocolManager, miner.Miner and core.TxPool is asynchronous. Left over peer sessions generate events which are processed after Stop even though the database has already been closed. The fix is to make Stop synchronous using sync.WaitGroup. For eth.ProtocolManager, in order to make use of WaitGroup safe, we need a way to stop new peer sessions from being added while waiting on the WaitGroup. The eth protocol Run function now selects on a signaling channel and adds to the WaitGroup only if ProtocolManager is not shutting down. For miner.worker and core.TxPool the number of goroutines is static, WaitGroup can be used in the usual way without additional synchronisation.
628 lines
19 KiB
Go
628 lines
19 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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"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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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.accountManager),
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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
|
|
}
|
|
} else {
|
|
glog.V(logger.Error).Infof("DAG for epoch %d (%s)", nextEpoch, dag)
|
|
}
|
|
}
|
|
}
|
|
timer = time.After(autoDAGcheckInterval)
|
|
case <-self.autodagquit:
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
// 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
|
|
}
|