forked from paxosglobal/go-ethereum
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
core, trie, eth, cmd: rework preimage store (ethereum#25287)
* core, trie, eth, cmd: rework preimage store * trie: address comment
- Loading branch information
1 parent
713c6a7
commit 64e2279
Showing
6 changed files
with
127 additions
and
84 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| // Copyright 2022 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 trie | ||
|
|
||
| import ( | ||
| "sync" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/core/rawdb" | ||
| "github.com/ethereum/go-ethereum/ethdb" | ||
| ) | ||
|
|
||
| // preimageStore is the store for caching preimages of node key. | ||
| type preimageStore struct { | ||
| lock sync.RWMutex | ||
| disk ethdb.KeyValueStore | ||
| preimages map[common.Hash][]byte // Preimages of nodes from the secure trie | ||
| preimagesSize common.StorageSize // Storage size of the preimages cache | ||
| } | ||
|
|
||
| // newPreimageStore initializes the store for caching preimages. | ||
| func newPreimageStore(disk ethdb.KeyValueStore) *preimageStore { | ||
| return &preimageStore{ | ||
| disk: disk, | ||
| preimages: make(map[common.Hash][]byte), | ||
| } | ||
| } | ||
|
|
||
| // insertPreimage writes a new trie node pre-image to the memory database if it's | ||
| // yet unknown. The method will NOT make a copy of the slice, only use if the | ||
| // preimage will NOT be changed later on. | ||
| func (store *preimageStore) insertPreimage(preimages map[common.Hash][]byte) { | ||
| store.lock.Lock() | ||
| defer store.lock.Unlock() | ||
|
|
||
| for hash, preimage := range preimages { | ||
| if _, ok := store.preimages[hash]; ok { | ||
| continue | ||
| } | ||
| store.preimages[hash] = preimage | ||
| store.preimagesSize += common.StorageSize(common.HashLength + len(preimage)) | ||
| } | ||
| } | ||
|
|
||
| // preimage retrieves a cached trie node pre-image from memory. If it cannot be | ||
| // found cached, the method queries the persistent database for the content. | ||
| func (store *preimageStore) preimage(hash common.Hash) []byte { | ||
| store.lock.RLock() | ||
| preimage := store.preimages[hash] | ||
| store.lock.RUnlock() | ||
|
|
||
| if preimage != nil { | ||
| return preimage | ||
| } | ||
| return rawdb.ReadPreimage(store.disk, hash) | ||
| } | ||
|
|
||
| // commit flushes the cached preimages into the disk. | ||
| func (store *preimageStore) commit(force bool) error { | ||
| store.lock.Lock() | ||
| defer store.lock.Unlock() | ||
|
|
||
| if store.preimagesSize <= 4*1024*1024 && !force { | ||
| return nil | ||
| } | ||
| batch := store.disk.NewBatch() | ||
| rawdb.WritePreimages(batch, store.preimages) | ||
| if err := batch.Write(); err != nil { | ||
| return err | ||
| } | ||
| store.preimages, store.preimagesSize = make(map[common.Hash][]byte), 0 | ||
| return nil | ||
| } | ||
|
|
||
| // size returns the current storage size of accumulated preimages. | ||
| func (store *preimageStore) size() common.StorageSize { | ||
| store.lock.RLock() | ||
| defer store.lock.RUnlock() | ||
|
|
||
| return store.preimagesSize | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters