118 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2017 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
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import (
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	"math/big"
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	"os"
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	"os/user"
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	"path/filepath"
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	"runtime"
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	"github.com/ethereum/go-ethereum/common"
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	"github.com/ethereum/go-ethereum/common/hexutil"
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	"github.com/ethereum/go-ethereum/core"
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	"github.com/ethereum/go-ethereum/eth/downloader"
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	"github.com/ethereum/go-ethereum/eth/gasprice"
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	"github.com/ethereum/go-ethereum/params"
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)
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// DefaultConfig contains default settings for use on the Ethereum main net.
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var DefaultConfig = Config{
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	SyncMode:             downloader.FastSync,
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	EthashCacheDir:       "ethash",
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	EthashCachesInMem:    2,
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	EthashCachesOnDisk:   3,
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	EthashDatasetsInMem:  1,
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	EthashDatasetsOnDisk: 2,
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	NetworkId:            1,
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	LightPeers:           20,
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	DatabaseCache:        128,
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	GasPrice:             big.NewInt(18 * params.Shannon),
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	GPO: gasprice.Config{
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		Blocks:     10,
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		Percentile: 50,
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	},
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}
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func init() {
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	home := os.Getenv("HOME")
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	if home == "" {
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		if user, err := user.Current(); err == nil {
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			home = user.HomeDir
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		}
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	}
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	if runtime.GOOS == "windows" {
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		DefaultConfig.EthashDatasetDir = filepath.Join(home, "AppData", "Ethash")
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	} else {
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		DefaultConfig.EthashDatasetDir = filepath.Join(home, ".ethash")
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	}
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}
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//go:generate gencodec -type Config -field-override configMarshaling -formats toml -out gen_config.go
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type Config struct {
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	// The genesis block, which is inserted if the database is empty.
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	// If nil, the Ethereum main net block is used.
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	Genesis *core.Genesis `toml:",omitempty"`
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	// Protocol options
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	NetworkId uint64 // Network ID to use for selecting peers to connect to
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	SyncMode  downloader.SyncMode
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	// Light client options
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	LightServ  int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
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	LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
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	MaxPeers   int `toml:"-"`          // Maximum number of global peers
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	// Database options
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	SkipBcVersionCheck bool `toml:"-"`
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	DatabaseHandles    int  `toml:"-"`
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	DatabaseCache      int
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	// Mining-related options
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	Etherbase    common.Address `toml:",omitempty"`
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	MinerThreads int            `toml:",omitempty"`
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	ExtraData    []byte         `toml:",omitempty"`
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	GasPrice     *big.Int
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	// Ethash options
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	EthashCacheDir       string
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	EthashCachesInMem    int
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	EthashCachesOnDisk   int
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	EthashDatasetDir     string
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	EthashDatasetsInMem  int
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	EthashDatasetsOnDisk int
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	// Gas Price Oracle options
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	GPO gasprice.Config
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	// Enables tracking of SHA3 preimages in the VM
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	EnablePreimageRecording bool
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	// Miscellaneous options
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	DocRoot   string `toml:"-"`
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	PowFake   bool   `toml:"-"`
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	PowTest   bool   `toml:"-"`
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	PowShared bool   `toml:"-"`
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}
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type configMarshaling struct {
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	ExtraData hexutil.Bytes
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}
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