98 lines
3.8 KiB
Go
98 lines
3.8 KiB
Go
// 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 (
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
)
|
|
|
|
// 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.NewIteratorWithPrefix(storageSnapshotsKey(accountHash))
|
|
}
|