github.com/oskarth/go-ethereum@v1.6.8-0.20191013093314-dac24a9d3494/eth/config.go (about) 1 // Copyright 2017 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package eth 18 19 import ( 20 "math/big" 21 "os" 22 "os/user" 23 "path/filepath" 24 "runtime" 25 "time" 26 27 "github.com/ethereum/go-ethereum/common" 28 "github.com/ethereum/go-ethereum/common/hexutil" 29 "github.com/ethereum/go-ethereum/consensus/ethash" 30 "github.com/ethereum/go-ethereum/core" 31 "github.com/ethereum/go-ethereum/eth/downloader" 32 "github.com/ethereum/go-ethereum/eth/gasprice" 33 "github.com/ethereum/go-ethereum/params" 34 ) 35 36 // DefaultConfig contains default settings for use on the Ethereum main net. 37 var DefaultConfig = Config{ 38 SyncMode: downloader.FastSync, 39 Ethash: ethash.Config{ 40 CacheDir: "ethash", 41 CachesInMem: 2, 42 CachesOnDisk: 3, 43 DatasetsInMem: 1, 44 DatasetsOnDisk: 2, 45 }, 46 NetworkId: 1, 47 LightPeers: 100, 48 DatabaseCache: 768, 49 TrieCache: 256, 50 TrieTimeout: 60 * time.Minute, 51 MinerGasFloor: 8000000, 52 MinerGasCeil: 8000000, 53 MinerGasPrice: big.NewInt(params.GWei), 54 MinerRecommit: 3 * time.Second, 55 56 TxPool: core.DefaultTxPoolConfig, 57 GPO: gasprice.Config{ 58 Blocks: 20, 59 Percentile: 60, 60 }, 61 } 62 63 func init() { 64 home := os.Getenv("HOME") 65 if home == "" { 66 if user, err := user.Current(); err == nil { 67 home = user.HomeDir 68 } 69 } 70 if runtime.GOOS == "windows" { 71 DefaultConfig.Ethash.DatasetDir = filepath.Join(home, "AppData", "Ethash") 72 } else { 73 DefaultConfig.Ethash.DatasetDir = filepath.Join(home, ".ethash") 74 } 75 } 76 77 //go:generate gencodec -type Config -field-override configMarshaling -formats toml -out gen_config.go 78 79 type Config struct { 80 // The genesis block, which is inserted if the database is empty. 81 // If nil, the Ethereum main net block is used. 82 Genesis *core.Genesis `toml:",omitempty"` 83 84 // Protocol options 85 NetworkId uint64 // Network ID to use for selecting peers to connect to 86 SyncMode downloader.SyncMode 87 NoPruning bool 88 89 // Light client options 90 LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests 91 LightPeers int `toml:",omitempty"` // Maximum number of LES client peers 92 93 // Database options 94 SkipBcVersionCheck bool `toml:"-"` 95 DatabaseHandles int `toml:"-"` 96 DatabaseCache int 97 TrieCache int 98 TrieTimeout time.Duration 99 100 // Mining-related options 101 Etherbase common.Address `toml:",omitempty"` 102 MinerNotify []string `toml:",omitempty"` 103 MinerExtraData []byte `toml:",omitempty"` 104 MinerGasFloor uint64 105 MinerGasCeil uint64 106 MinerGasPrice *big.Int 107 MinerRecommit time.Duration 108 MinerNoverify bool 109 110 // Ethash options 111 Ethash ethash.Config 112 113 // Transaction pool options 114 TxPool core.TxPoolConfig 115 116 // Gas Price Oracle options 117 GPO gasprice.Config 118 119 // Enables tracking of SHA3 preimages in the VM 120 EnablePreimageRecording bool 121 122 // Miscellaneous options 123 DocRoot string `toml:"-"` 124 125 // Type of the EWASM interpreter ("" for detault) 126 EWASMInterpreter string 127 // Type of the EVM interpreter ("" for default) 128 EVMInterpreter string 129 } 130 131 type configMarshaling struct { 132 MinerExtraData hexutil.Bytes 133 }