github.com/hyperion-hyn/go-ethereum@v2.4.0+incompatible/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/consensus/istanbul"
    31  	"github.com/ethereum/go-ethereum/core"
    32  	"github.com/ethereum/go-ethereum/eth/downloader"
    33  	"github.com/ethereum/go-ethereum/eth/gasprice"
    34  	"github.com/ethereum/go-ethereum/params"
    35  )
    36  
    37  // DefaultConfig contains default settings for use on the Ethereum main net.
    38  var DefaultConfig = Config{
    39  	SyncMode: downloader.FastSync,
    40  	Ethash: ethash.Config{
    41  		CacheDir:       "ethash",
    42  		CachesInMem:    2,
    43  		CachesOnDisk:   3,
    44  		DatasetsInMem:  1,
    45  		DatasetsOnDisk: 2,
    46  	},
    47  	NetworkId:     1337,
    48  	LightPeers:    100,
    49  	DatabaseCache: 768,
    50  	TrieCache:     256,
    51  	TrieTimeout:   60 * time.Minute,
    52  	MinerGasFloor: params.MinGasLimit,
    53  	MinerGasCeil:  params.GenesisGasLimit,
    54  	MinerGasPrice: big.NewInt(params.GWei),
    55  	MinerRecommit: 3 * time.Second,
    56  
    57  	TxPool: core.DefaultTxPoolConfig,
    58  	GPO: gasprice.Config{
    59  		Blocks:     20,
    60  		Percentile: 60,
    61  	},
    62  
    63  	Istanbul: *istanbul.DefaultConfig,
    64  }
    65  
    66  func init() {
    67  	home := os.Getenv("HOME")
    68  	if home == "" {
    69  		if user, err := user.Current(); err == nil {
    70  			home = user.HomeDir
    71  		}
    72  	}
    73  	if runtime.GOOS == "windows" {
    74  		DefaultConfig.Ethash.DatasetDir = filepath.Join(home, "AppData", "Ethash")
    75  	} else {
    76  		DefaultConfig.Ethash.DatasetDir = filepath.Join(home, ".ethash")
    77  	}
    78  }
    79  
    80  //go:generate gencodec -type Config -field-override configMarshaling -formats toml -out gen_config.go
    81  
    82  type Config struct {
    83  	// The genesis block, which is inserted if the database is empty.
    84  	// If nil, the Ethereum main net block is used.
    85  	Genesis *core.Genesis `toml:",omitempty"`
    86  
    87  	// Protocol options
    88  	NetworkId uint64 // Network ID to use for selecting peers to connect to
    89  	SyncMode  downloader.SyncMode
    90  	NoPruning bool
    91  
    92  	// Light client options
    93  	LightServ  int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
    94  	LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
    95  
    96  	// Database options
    97  	SkipBcVersionCheck bool `toml:"-"`
    98  	DatabaseHandles    int  `toml:"-"`
    99  	DatabaseCache      int
   100  	TrieCache          int
   101  	TrieTimeout        time.Duration
   102  
   103  	// Mining-related options
   104  	Etherbase      common.Address `toml:",omitempty"`
   105  	MinerNotify    []string       `toml:",omitempty"`
   106  	MinerExtraData []byte         `toml:",omitempty"`
   107  	MinerGasFloor  uint64
   108  	MinerGasCeil   uint64
   109  	MinerGasPrice  *big.Int
   110  	MinerRecommit  time.Duration
   111  	MinerNoverify  bool
   112  
   113  	// Ethash options
   114  	Ethash ethash.Config
   115  
   116  	// Transaction pool options
   117  	TxPool core.TxPoolConfig
   118  
   119  	// Gas Price Oracle options
   120  	GPO gasprice.Config
   121  
   122  	// Enables tracking of SHA3 preimages in the VM
   123  	EnablePreimageRecording bool
   124  
   125  	RaftMode             bool
   126  	EnableNodePermission bool
   127  	// Istanbul options
   128  	Istanbul istanbul.Config
   129  
   130  	// Miscellaneous options
   131  	DocRoot string `toml:"-"`
   132  
   133  	// Type of the EWASM interpreter ("" for default)
   134  	EWASMInterpreter string
   135  	// Type of the EVM interpreter ("" for default)
   136  	EVMInterpreter string
   137  }
   138  
   139  type Mode uint
   140  
   141  const (
   142  	ModeNormal Mode = iota
   143  	ModeShared
   144  	ModeTest
   145  	ModeFake
   146  	ModeFullFake
   147  )
   148  
   149  type configMarshaling struct {
   150  	MinerExtraData hexutil.Bytes
   151  }