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- // Copyright 2019 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/binary"
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/ethdb"
- "github.com/ethereum/go-ethereum/log"
- )
- // ReadSnapshotDisabled retrieves if the snapshot maintenance is disabled.
- func ReadSnapshotDisabled(db ethdb.KeyValueReader) bool {
- disabled, _ := db.Has(snapshotDisabledKey)
- return disabled
- }
- // WriteSnapshotDisabled stores the snapshot pause flag.
- func WriteSnapshotDisabled(db ethdb.KeyValueWriter) {
- if err := db.Put(snapshotDisabledKey, []byte("42")); err != nil {
- log.Crit("Failed to store snapshot disabled flag", "err", err)
- }
- }
- // DeleteSnapshotDisabled deletes the flag keeping the snapshot maintenance disabled.
- func DeleteSnapshotDisabled(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotDisabledKey); err != nil {
- log.Crit("Failed to remove snapshot disabled flag", "err", err)
- }
- }
- // ReadSnapshotRoot retrieves the root of the block whose state is contained in
- // the persisted snapshot.
- func ReadSnapshotRoot(db ethdb.KeyValueReader) common.Hash {
- data, _ := db.Get(snapshotRootKey)
- if len(data) != common.HashLength {
- return common.Hash{}
- }
- return common.BytesToHash(data)
- }
- // WriteSnapshotRoot stores the root of the block whose state is contained in
- // the persisted snapshot.
- func WriteSnapshotRoot(db ethdb.KeyValueWriter, root common.Hash) {
- if err := db.Put(snapshotRootKey, root[:]); err != nil {
- log.Crit("Failed to store snapshot root", "err", err)
- }
- }
- // DeleteSnapshotRoot deletes the hash of the block whose state is contained in
- // the persisted snapshot. Since snapshots are not immutable, this method can
- // be used during updates, so a crash or failure will mark the entire snapshot
- // invalid.
- func DeleteSnapshotRoot(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotRootKey); err != nil {
- log.Crit("Failed to remove snapshot root", "err", err)
- }
- }
- // ReadAccountSnapshot retrieves the snapshot entry of an account trie leaf.
- func ReadAccountSnapshot(db ethdb.KeyValueReader, hash common.Hash) []byte {
- data, _ := db.Get(accountSnapshotKey(hash))
- return data
- }
- // WriteAccountSnapshot stores the snapshot entry of an account trie leaf.
- func WriteAccountSnapshot(db ethdb.KeyValueWriter, hash common.Hash, entry []byte) {
- if err := db.Put(accountSnapshotKey(hash), entry); err != nil {
- log.Crit("Failed to store account snapshot", "err", err)
- }
- }
- // DeleteAccountSnapshot removes the snapshot entry of an account trie leaf.
- func DeleteAccountSnapshot(db ethdb.KeyValueWriter, hash common.Hash) {
- if err := db.Delete(accountSnapshotKey(hash)); err != nil {
- log.Crit("Failed to delete account snapshot", "err", err)
- }
- }
- // ReadStorageSnapshot retrieves the snapshot entry of an storage trie leaf.
- func ReadStorageSnapshot(db ethdb.KeyValueReader, accountHash, storageHash common.Hash) []byte {
- data, _ := db.Get(storageSnapshotKey(accountHash, storageHash))
- return data
- }
- // WriteStorageSnapshot stores the snapshot entry of an storage trie leaf.
- func WriteStorageSnapshot(db ethdb.KeyValueWriter, accountHash, storageHash common.Hash, entry []byte) {
- if err := db.Put(storageSnapshotKey(accountHash, storageHash), entry); err != nil {
- log.Crit("Failed to store storage snapshot", "err", err)
- }
- }
- // DeleteStorageSnapshot removes the snapshot entry of an storage trie leaf.
- func DeleteStorageSnapshot(db ethdb.KeyValueWriter, accountHash, storageHash common.Hash) {
- if err := db.Delete(storageSnapshotKey(accountHash, storageHash)); err != nil {
- log.Crit("Failed to delete storage snapshot", "err", err)
- }
- }
- // IterateStorageSnapshots returns an iterator for walking the entire storage
- // space of a specific account.
- func IterateStorageSnapshots(db ethdb.Iteratee, accountHash common.Hash) ethdb.Iterator {
- return db.NewIterator(storageSnapshotsKey(accountHash), nil)
- }
- // ReadSnapshotJournal retrieves the serialized in-memory diff layers saved at
- // the last shutdown. The blob is expected to be max a few 10s of megabytes.
- func ReadSnapshotJournal(db ethdb.KeyValueReader) []byte {
- data, _ := db.Get(snapshotJournalKey)
- return data
- }
- // WriteSnapshotJournal stores the serialized in-memory diff layers to save at
- // shutdown. The blob is expected to be max a few 10s of megabytes.
- func WriteSnapshotJournal(db ethdb.KeyValueWriter, journal []byte) {
- if err := db.Put(snapshotJournalKey, journal); err != nil {
- log.Crit("Failed to store snapshot journal", "err", err)
- }
- }
- // DeleteSnapshotJournal deletes the serialized in-memory diff layers saved at
- // the last shutdown
- func DeleteSnapshotJournal(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotJournalKey); err != nil {
- log.Crit("Failed to remove snapshot journal", "err", err)
- }
- }
- // ReadSnapshotGenerator retrieves the serialized snapshot generator saved at
- // the last shutdown.
- func ReadSnapshotGenerator(db ethdb.KeyValueReader) []byte {
- data, _ := db.Get(snapshotGeneratorKey)
- return data
- }
- // WriteSnapshotGenerator stores the serialized snapshot generator to save at
- // shutdown.
- func WriteSnapshotGenerator(db ethdb.KeyValueWriter, generator []byte) {
- if err := db.Put(snapshotGeneratorKey, generator); err != nil {
- log.Crit("Failed to store snapshot generator", "err", err)
- }
- }
- // DeleteSnapshotGenerator deletes the serialized snapshot generator saved at
- // the last shutdown
- func DeleteSnapshotGenerator(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotGeneratorKey); err != nil {
- log.Crit("Failed to remove snapshot generator", "err", err)
- }
- }
- // ReadSnapshotRecoveryNumber retrieves the block number of the last persisted
- // snapshot layer.
- func ReadSnapshotRecoveryNumber(db ethdb.KeyValueReader) *uint64 {
- data, _ := db.Get(snapshotRecoveryKey)
- if len(data) == 0 {
- return nil
- }
- if len(data) != 8 {
- return nil
- }
- number := binary.BigEndian.Uint64(data)
- return &number
- }
- // WriteSnapshotRecoveryNumber stores the block number of the last persisted
- // snapshot layer.
- func WriteSnapshotRecoveryNumber(db ethdb.KeyValueWriter, number uint64) {
- var buf [8]byte
- binary.BigEndian.PutUint64(buf[:], number)
- if err := db.Put(snapshotRecoveryKey, buf[:]); err != nil {
- log.Crit("Failed to store snapshot recovery number", "err", err)
- }
- }
- // DeleteSnapshotRecoveryNumber deletes the block number of the last persisted
- // snapshot layer.
- func DeleteSnapshotRecoveryNumber(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotRecoveryKey); err != nil {
- log.Crit("Failed to remove snapshot recovery number", "err", err)
- }
- }
- // ReadSnapshotSyncStatus retrieves the serialized sync status saved at shutdown.
- func ReadSnapshotSyncStatus(db ethdb.KeyValueReader) []byte {
- data, err := db.Get(snapshotSyncStatusKey)
- if err != nil {
- log.Error("Error reading snapshot sync status", "err", err)
- }
- return data
- }
- // WriteSnapshotSyncStatus stores the serialized sync status to save at shutdown.
- func WriteSnapshotSyncStatus(db ethdb.KeyValueWriter, status []byte) {
- if err := db.Put(snapshotSyncStatusKey, status); err != nil {
- log.Crit("Failed to store snapshot sync status", "err", err)
- }
- }
- // DeleteSnapshotSyncStatus deletes the serialized sync status saved at the last
- // shutdown
- func DeleteSnapshotSyncStatus(db ethdb.KeyValueWriter) {
- if err := db.Delete(snapshotSyncStatusKey); err != nil {
- log.Crit("Failed to remove snapshot sync status", "err", err)
- }
- }
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