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// 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 <http://www.gnu.org/licenses/>.
package eth
import (
"math/big"
"os"
"os/user"
"path/filepath"
"runtime"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"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,
EthashCachesInMem: 2,
EthashCachesOnDisk: 3,
EthashDatasetsInMem: 1,
EthashDatasetsOnDisk: 2,
NetworkId: 1,
LightPeers: 20,
DatabaseCache: 128,
GasPrice: big.NewInt(20 * params.Shannon),
GPO: gasprice.Config{
Blocks: 10,
Percentile: 50,
},
}
func init() {
home := os.Getenv("HOME")
if home == "" {
if user, err := user.Current(); err == nil {
home = user.HomeDir
}
}
if runtime.GOOS == "windows" {
DefaultConfig.EthashDatasetDir = filepath.Join(home, "AppData", "Ethash")
} else {
DefaultConfig.EthashDatasetDir = 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 int // Network ID to use for selecting peers to connect to
SyncMode downloader.SyncMode
// 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
MaxPeers int `toml:"-"` // Maximum number of global peers
// Database options
SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"`
DatabaseCache int
// Mining-related options
Etherbase common.Address `toml:",omitempty"`
MinerThreads int `toml:",omitempty"`
ExtraData []byte `toml:",omitempty"`
GasPrice *big.Int
// Ethash options
EthashCacheDir string
EthashCachesInMem int
EthashCachesOnDisk int
EthashDatasetDir string
EthashDatasetsInMem int
EthashDatasetsOnDisk int
// Gas Price Oracle options
GPO gasprice.Config
// Enables tracking of SHA3 preimages in the VM
EnablePreimageRecording bool
// Miscellaneous options
DocRoot string `toml:"-"`
PowFake bool `toml:"-"`
PowTest bool `toml:"-"`
PowShared bool `toml:"-"`
}
type configMarshaling struct {
ExtraData hexutil.Bytes
}
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