Official Go implementation of the Ethereum protocol
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go-ethereum/core/rawdb/accessors_metadata.go

190 lines
6.6 KiB

// 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"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethdb"
"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 ethdb.KeyValueReader) *uint64 {
var version uint64
enc, _ := db.Get(databaseVersionKey)
if len(enc) == 0 {
return nil
}
if err := rlp.DecodeBytes(enc, &version); err != nil {
return nil
}
return &version
}
// WriteDatabaseVersion stores the version number of the database
func WriteDatabaseVersion(db ethdb.KeyValueWriter, version uint64) {
enc, err := rlp.EncodeToBytes(version)
if err != nil {
log.Crit("Failed to encode database version", "err", err)
}
if err = db.Put(databaseVersionKey, 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 ethdb.KeyValueReader, 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 ethdb.KeyValueWriter, 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)
}
}
// ReadGenesisStateSpec retrieves the genesis state specification based on the
// given genesis hash.
func ReadGenesisStateSpec(db ethdb.KeyValueReader, hash common.Hash) []byte {
data, _ := db.Get(genesisStateSpecKey(hash))
return data
}
// WriteGenesisStateSpec writes the genesis state specification into the disk.
func WriteGenesisStateSpec(db ethdb.KeyValueWriter, hash common.Hash, data []byte) {
if err := db.Put(genesisStateSpecKey(hash), data); err != nil {
log.Crit("Failed to store genesis state", "err", err)
}
}
// crashList is a list of unclean-shutdown-markers, for rlp-encoding to the
// database
type crashList struct {
Discarded uint64 // how many ucs have we deleted
Recent []uint64 // unix timestamps of 10 latest unclean shutdowns
}
const crashesToKeep = 10
// PushUncleanShutdownMarker appends a new unclean shutdown marker and returns
// the previous data
// - a list of timestamps
// - a count of how many old unclean-shutdowns have been discarded
func PushUncleanShutdownMarker(db ethdb.KeyValueStore) ([]uint64, uint64, error) {
var uncleanShutdowns crashList
// Read old data
if data, err := db.Get(uncleanShutdownKey); err != nil {
log.Warn("Error reading unclean shutdown markers", "error", err)
} else if err := rlp.DecodeBytes(data, &uncleanShutdowns); err != nil {
return nil, 0, err
}
var discarded = uncleanShutdowns.Discarded
var previous = make([]uint64, len(uncleanShutdowns.Recent))
copy(previous, uncleanShutdowns.Recent)
// Add a new (but cap it)
uncleanShutdowns.Recent = append(uncleanShutdowns.Recent, uint64(time.Now().Unix()))
if count := len(uncleanShutdowns.Recent); count > crashesToKeep+1 {
numDel := count - (crashesToKeep + 1)
uncleanShutdowns.Recent = uncleanShutdowns.Recent[numDel:]
uncleanShutdowns.Discarded += uint64(numDel)
}
// And save it again
data, _ := rlp.EncodeToBytes(uncleanShutdowns)
if err := db.Put(uncleanShutdownKey, data); err != nil {
log.Warn("Failed to write unclean-shutdown marker", "err", err)
return nil, 0, err
}
return previous, discarded, nil
}
// PopUncleanShutdownMarker removes the last unclean shutdown marker
func PopUncleanShutdownMarker(db ethdb.KeyValueStore) {
var uncleanShutdowns crashList
// Read old data
if data, err := db.Get(uncleanShutdownKey); err != nil {
log.Warn("Error reading unclean shutdown markers", "error", err)
} else if err := rlp.DecodeBytes(data, &uncleanShutdowns); err != nil {
log.Error("Error decoding unclean shutdown markers", "error", err) // Should mos def _not_ happen
}
if l := len(uncleanShutdowns.Recent); l > 0 {
uncleanShutdowns.Recent = uncleanShutdowns.Recent[:l-1]
}
data, _ := rlp.EncodeToBytes(uncleanShutdowns)
if err := db.Put(uncleanShutdownKey, data); err != nil {
log.Warn("Failed to clear unclean-shutdown marker", "err", err)
}
}
all: core rework for the merge transition (#23761) * all: work for eth1/2 transtition * consensus/beacon, eth: change beacon difficulty to 0 * eth: updates * all: add terminalBlockDifficulty config, fix rebasing issues * eth: implemented merge interop spec * internal/ethapi: update to v1.0.0.alpha.2 This commit updates the code to the new spec, moving payloadId into it's own object. It also fixes an issue with finalizing an empty blockhash. It also properly sets the basefee * all: sync polishes, other fixes + refactors * core, eth: correct semantics for LeavePoW, EnterPoS * core: fixed rebasing artifacts * core: light: performance improvements * core: use keyed field (f) * core: eth: fix compilation issues + tests * eth/catalyst: dbetter error codes * all: move Merger to consensus/, remove reliance on it in bc * all: renamed EnterPoS and LeavePoW to ReachTDD and FinalizePoS * core: make mergelogs a function * core: use InsertChain instead of InsertBlock * les: drop merger from lightchain object * consensus: add merger * core: recoverAncestors in catalyst mode * core: fix nitpick * all: removed merger from beacon, use TTD, nitpicks * consensus: eth: add docstring, removed unnecessary code duplication * consensus/beacon: better comment * all: easy to fix nitpicks by karalabe * consensus/beacon: verify known headers to be sure * core: comments * core: eth: don't drop peers who advertise blocks, nitpicks * core: never add beacon blocks to the future queue * core: fixed nitpicks * consensus/beacon: simplify IsTTDReached check * consensus/beacon: correct IsTTDReached check Co-authored-by: rjl493456442 <garyrong0905@gmail.com> Co-authored-by: Péter Szilágyi <peterke@gmail.com>
3 years ago
// UpdateUncleanShutdownMarker updates the last marker's timestamp to now.
func UpdateUncleanShutdownMarker(db ethdb.KeyValueStore) {
var uncleanShutdowns crashList
// Read old data
if data, err := db.Get(uncleanShutdownKey); err != nil {
log.Warn("Error reading unclean shutdown markers", "error", err)
} else if err := rlp.DecodeBytes(data, &uncleanShutdowns); err != nil {
log.Warn("Error decoding unclean shutdown markers", "error", err)
}
// This shouldn't happen because we push a marker on Backend instantiation
count := len(uncleanShutdowns.Recent)
if count == 0 {
log.Warn("No unclean shutdown marker to update")
return
}
uncleanShutdowns.Recent[count-1] = uint64(time.Now().Unix())
data, _ := rlp.EncodeToBytes(uncleanShutdowns)
if err := db.Put(uncleanShutdownKey, data); err != nil {
log.Warn("Failed to write unclean-shutdown marker", "err", err)
}
}
all: core rework for the merge transition (#23761) * all: work for eth1/2 transtition * consensus/beacon, eth: change beacon difficulty to 0 * eth: updates * all: add terminalBlockDifficulty config, fix rebasing issues * eth: implemented merge interop spec * internal/ethapi: update to v1.0.0.alpha.2 This commit updates the code to the new spec, moving payloadId into it's own object. It also fixes an issue with finalizing an empty blockhash. It also properly sets the basefee * all: sync polishes, other fixes + refactors * core, eth: correct semantics for LeavePoW, EnterPoS * core: fixed rebasing artifacts * core: light: performance improvements * core: use keyed field (f) * core: eth: fix compilation issues + tests * eth/catalyst: dbetter error codes * all: move Merger to consensus/, remove reliance on it in bc * all: renamed EnterPoS and LeavePoW to ReachTDD and FinalizePoS * core: make mergelogs a function * core: use InsertChain instead of InsertBlock * les: drop merger from lightchain object * consensus: add merger * core: recoverAncestors in catalyst mode * core: fix nitpick * all: removed merger from beacon, use TTD, nitpicks * consensus: eth: add docstring, removed unnecessary code duplication * consensus/beacon: better comment * all: easy to fix nitpicks by karalabe * consensus/beacon: verify known headers to be sure * core: comments * core: eth: don't drop peers who advertise blocks, nitpicks * core: never add beacon blocks to the future queue * core: fixed nitpicks * consensus/beacon: simplify IsTTDReached check * consensus/beacon: correct IsTTDReached check Co-authored-by: rjl493456442 <garyrong0905@gmail.com> Co-authored-by: Péter Szilágyi <peterke@gmail.com>
3 years ago
// ReadTransitionStatus retrieves the eth2 transition status from the database
func ReadTransitionStatus(db ethdb.KeyValueReader) []byte {
data, _ := db.Get(transitionStatusKey)
return data
}
// WriteTransitionStatus stores the eth2 transition status to the database
func WriteTransitionStatus(db ethdb.KeyValueWriter, data []byte) {
if err := db.Put(transitionStatusKey, data); err != nil {
log.Crit("Failed to store the eth2 transition status", "err", err)
}
}