mirror of https://github.com/poanetwork/quorum.git
91 lines
3.0 KiB
Go
91 lines
3.0 KiB
Go
// Copyright 2018 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 rawdb
|
|
|
|
import (
|
|
"encoding/json"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
)
|
|
|
|
// ReadDatabaseVersion retrieves the version number of the database.
|
|
func ReadDatabaseVersion(db DatabaseReader) int {
|
|
var version int
|
|
|
|
enc, _ := db.Get(databaseVerisionKey)
|
|
rlp.DecodeBytes(enc, &version)
|
|
|
|
return version
|
|
}
|
|
|
|
// WriteDatabaseVersion stores the version number of the database
|
|
func WriteDatabaseVersion(db DatabaseWriter, version int) {
|
|
enc, _ := rlp.EncodeToBytes(version)
|
|
if err := db.Put(databaseVerisionKey, enc); err != nil {
|
|
log.Crit("Failed to store the database version", "err", err)
|
|
}
|
|
}
|
|
|
|
// ReadChainConfig retrieves the consensus settings based on the given genesis hash.
|
|
func ReadChainConfig(db DatabaseReader, hash common.Hash) *params.ChainConfig {
|
|
data, _ := db.Get(configKey(hash))
|
|
if len(data) == 0 {
|
|
return nil
|
|
}
|
|
var config params.ChainConfig
|
|
if err := json.Unmarshal(data, &config); err != nil {
|
|
log.Error("Invalid chain config JSON", "hash", hash, "err", err)
|
|
return nil
|
|
}
|
|
return &config
|
|
}
|
|
|
|
// WriteChainConfig writes the chain config settings to the database.
|
|
func WriteChainConfig(db DatabaseWriter, hash common.Hash, cfg *params.ChainConfig) {
|
|
if cfg == nil {
|
|
return
|
|
}
|
|
data, err := json.Marshal(cfg)
|
|
if err != nil {
|
|
log.Crit("Failed to JSON encode chain config", "err", err)
|
|
}
|
|
if err := db.Put(configKey(hash), data); err != nil {
|
|
log.Crit("Failed to store chain config", "err", err)
|
|
}
|
|
}
|
|
|
|
// ReadPreimage retrieves a single preimage of the provided hash.
|
|
func ReadPreimage(db DatabaseReader, hash common.Hash) []byte {
|
|
data, _ := db.Get(preimageKey(hash))
|
|
return data
|
|
}
|
|
|
|
// WritePreimages writes the provided set of preimages to the database. `number` is the
|
|
// current block number, and is used for debug messages only.
|
|
func WritePreimages(db DatabaseWriter, number uint64, preimages map[common.Hash][]byte) {
|
|
for hash, preimage := range preimages {
|
|
if err := db.Put(preimageKey(hash), preimage); err != nil {
|
|
log.Crit("Failed to store trie preimage", "err", err)
|
|
}
|
|
}
|
|
preimageCounter.Inc(int64(len(preimages)))
|
|
preimageHitCounter.Inc(int64(len(preimages)))
|
|
}
|