// Copyright 2017 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . package eth import ( "math/big" "os" "os/user" "path/filepath" "runtime" "time" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/eth/downloader" "github.com/ethereum/go-ethereum/eth/gasprice" "github.com/ethereum/go-ethereum/params" ) // DefaultConfig contains default settings for use on the Ethereum main net. var DefaultConfig = Config{ SyncMode: downloader.FastSync, Ethash: ethash.Config{ CacheDir: "ethash", CachesInMem: 2, CachesOnDisk: 3, DatasetsInMem: 1, DatasetsOnDisk: 2, }, NetworkId: 1, LightPeers: 100, DatabaseCache: 512, TrieCleanCache: 256, TrieDirtyCache: 256, TrieTimeout: 60 * time.Minute, MinerGasFloor: 8000000, MinerGasCeil: 8000000, MinerGasPrice: big.NewInt(params.GWei), MinerRecommit: 3 * time.Second, TxPool: core.DefaultTxPoolConfig, GPO: gasprice.Config{ Blocks: 20, Percentile: 60, }, } func init() { home := os.Getenv("HOME") if home == "" { if user, err := user.Current(); err == nil { home = user.HomeDir } } if runtime.GOOS == "windows" { DefaultConfig.Ethash.DatasetDir = filepath.Join(home, "AppData", "Ethash") } else { DefaultConfig.Ethash.DatasetDir = filepath.Join(home, ".ethash") } } //go:generate gencodec -type Config -field-override configMarshaling -formats toml -out gen_config.go type Config struct { // The genesis block, which is inserted if the database is empty. // If nil, the Ethereum main net block is used. Genesis *core.Genesis `toml:",omitempty"` // Protocol options NetworkId uint64 // Network ID to use for selecting peers to connect to SyncMode downloader.SyncMode NoPruning bool // Whitelist of required block number -> hash values to accept Whitelist map[uint64]common.Hash `toml:"-"` // Light client options LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests LightPeers int `toml:",omitempty"` // Maximum number of LES client peers OnlyAnnounce bool // Maximum number of LES client peers // Ultra Light client options ULC *ULCConfig `toml:",omitempty"` // Database options SkipBcVersionCheck bool `toml:"-"` DatabaseHandles int `toml:"-"` DatabaseCache int TrieCleanCache int TrieDirtyCache int TrieTimeout time.Duration // Mining-related options Etherbase common.Address `toml:",omitempty"` MinerNotify []string `toml:",omitempty"` MinerExtraData []byte `toml:",omitempty"` MinerGasFloor uint64 MinerGasCeil uint64 MinerGasPrice *big.Int MinerRecommit time.Duration MinerNoverify bool // Ethash options Ethash ethash.Config // Transaction pool options TxPool core.TxPoolConfig // Gas Price Oracle options GPO gasprice.Config // Enables tracking of SHA3 preimages in the VM EnablePreimageRecording bool // Miscellaneous options DocRoot string `toml:"-"` // Type of the EWASM interpreter ("" for default) EWASMInterpreter string // Type of the EVM interpreter ("" for default) EVMInterpreter string // Constantinople block override (TODO: remove after the fork) ConstantinopleOverride *big.Int // RPCGasCap is the global gas cap for eth-call variants. RPCGasCap *big.Int `toml:",omitempty"` } type configMarshaling struct { MinerExtraData hexutil.Bytes }