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