8860b39754
This PR moves some trie-related db accessor methods to a different file, and also removes the schema type. Instead of the schema type, a string is used to distinguish between hashbased/pathbased db accessors. This also moves some code from trie package to rawdb package. This PR is intended to be a no-functionality-change prep PR for #25963 . --------- Co-authored-by: Gary Rong <garyrong0905@gmail.com>
95 lines
3.3 KiB
Go
95 lines
3.3 KiB
Go
// Copyright 2020 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"
|
|
)
|
|
|
|
// ReadPreimage retrieves a single preimage of the provided hash.
|
|
func ReadPreimage(db ethdb.KeyValueReader, hash common.Hash) []byte {
|
|
data, _ := db.Get(preimageKey(hash))
|
|
return data
|
|
}
|
|
|
|
// WritePreimages writes the provided set of preimages to the database.
|
|
func WritePreimages(db ethdb.KeyValueWriter, 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)))
|
|
}
|
|
|
|
// ReadCode retrieves the contract code of the provided code hash.
|
|
func ReadCode(db ethdb.KeyValueReader, hash common.Hash) []byte {
|
|
// Try with the prefixed code scheme first, if not then try with legacy
|
|
// scheme.
|
|
data := ReadCodeWithPrefix(db, hash)
|
|
if len(data) != 0 {
|
|
return data
|
|
}
|
|
data, _ = db.Get(hash.Bytes())
|
|
return data
|
|
}
|
|
|
|
// ReadCodeWithPrefix retrieves the contract code of the provided code hash.
|
|
// The main difference between this function and ReadCode is this function
|
|
// will only check the existence with latest scheme(with prefix).
|
|
func ReadCodeWithPrefix(db ethdb.KeyValueReader, hash common.Hash) []byte {
|
|
data, _ := db.Get(codeKey(hash))
|
|
return data
|
|
}
|
|
|
|
// HasCode checks if the contract code corresponding to the
|
|
// provided code hash is present in the db.
|
|
func HasCode(db ethdb.KeyValueReader, hash common.Hash) bool {
|
|
// Try with the prefixed code scheme first, if not then try with legacy
|
|
// scheme.
|
|
if ok := HasCodeWithPrefix(db, hash); ok {
|
|
return true
|
|
}
|
|
ok, _ := db.Has(hash.Bytes())
|
|
return ok
|
|
}
|
|
|
|
// HasCodeWithPrefix checks if the contract code corresponding to the
|
|
// provided code hash is present in the db. This function will only check
|
|
// presence using the prefix-scheme.
|
|
func HasCodeWithPrefix(db ethdb.KeyValueReader, hash common.Hash) bool {
|
|
ok, _ := db.Has(codeKey(hash))
|
|
return ok
|
|
}
|
|
|
|
// WriteCode writes the provided contract code database.
|
|
func WriteCode(db ethdb.KeyValueWriter, hash common.Hash, code []byte) {
|
|
if err := db.Put(codeKey(hash), code); err != nil {
|
|
log.Crit("Failed to store contract code", "err", err)
|
|
}
|
|
}
|
|
|
|
// DeleteCode deletes the specified contract code from the database.
|
|
func DeleteCode(db ethdb.KeyValueWriter, hash common.Hash) {
|
|
if err := db.Delete(codeKey(hash)); err != nil {
|
|
log.Crit("Failed to delete contract code", "err", err)
|
|
}
|
|
}
|