core, eth, les, trie: add a prefix to contract code #21080
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| // 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 legacy code scheme first, if not then try with current | ||
| // scheme. Since most of the code will be found with legacy scheme. | ||
| // | ||
| // todo(rjl493456442) change the order when we forcibly upgrade the code | ||
| // scheme with snapshot. | ||
| data, _ := db.Get(hash[:]) | ||
| if len(data) != 0 { | ||
|
Contributor
There was a problem hiding this comment. nitpick: if data,_ ;= db.Get(hash[:]); len(data) >0{
return data
}
return ReadCodeWithPrefix(db, hash) |
||
| return data | ||
| } | ||
| return ReadCodeWithPrefix(db, hash) | ||
| } | ||
|
|
||
| // 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 | ||
| } | ||
|
|
||
| // 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) | ||
| } | ||
| } | ||
|
|
||
| // ReadTrieNode retrieves the trie node of the provided hash. | ||
| func ReadTrieNode(db ethdb.KeyValueReader, hash common.Hash) []byte { | ||
| data, _ := db.Get(hash.Bytes()) | ||
| return data | ||
| } | ||
|
|
||
| // WriteTrieNode writes the provided trie node database. | ||
| func WriteTrieNode(db ethdb.KeyValueWriter, hash common.Hash, node []byte) { | ||
| if err := db.Put(hash.Bytes(), node); err != nil { | ||
| log.Crit("Failed to store trie node", "err", err) | ||
| } | ||
| } | ||
|
|
||
| // DeleteTrieNode deletes the specified trie node from the database. | ||
| func DeleteTrieNode(db ethdb.KeyValueWriter, hash common.Hash) { | ||
| if err := db.Delete(hash.Bytes()); err != nil { | ||
| log.Crit("Failed to delete trie node", "err", err) | ||
| } | ||
| } | ||
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