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https://github.com/ethereum/go-ethereum.git
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69c0028094
Addresses review finding I2. The bintrieFlatCodec had a crit() helper whose doc claimed "delegates to log.Crit" but whose body was panic(fmt.Sprintf(...)). A corrupt on-disk stem blob would cause the buffer flush goroutine to panic, killing the process. On restart the same blob would cause the same panic — unrecoverable crash loop. Fix: applyWrites now returns ([]byte, error) instead of panicking. The Flush method on flatStateCodec gains an error return: (int, int) → (int, int, error) The error propagates up through writeStates → stateSet.write → buffer.flush → flushErr. A corrupted stem blob now causes a flush failure that the database can react to instead of a crash loop. The per-entry methods (WriteAccount, WriteStorage, DeleteAccount, DeleteStorage) — which are NOT on the production flush path — use log.Crit (the real function, not the deleted shim) on error, matching the merkle codec's existing convention for unrecoverable corruption at the per-entry level. The crit shim is deleted entirely.
84 lines
3.3 KiB
Go
84 lines
3.3 KiB
Go
// Copyright 2024 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 pathdb
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import (
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"github.com/VictoriaMetrics/fastcache"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/trie/trienode"
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)
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// nodeCacheKey constructs the unique key of clean cache. The assumption is held
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// that zero address does not have any associated storage slots.
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func nodeCacheKey(owner common.Hash, path []byte) []byte {
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if owner == (common.Hash{}) {
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return path
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}
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return append(owner.Bytes(), path...)
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}
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// writeNodes writes the trie nodes into the provided database batch.
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// Note this function will also inject all the newly written nodes
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// into clean cache.
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func writeNodes(batch ethdb.Batch, nodes map[common.Hash]map[string]*trienode.Node, clean *fastcache.Cache) (total int) {
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for owner, subset := range nodes {
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for path, n := range subset {
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if n.IsDeleted() {
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if owner == (common.Hash{}) {
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rawdb.DeleteAccountTrieNode(batch, []byte(path))
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} else {
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rawdb.DeleteStorageTrieNode(batch, owner, []byte(path))
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}
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if clean != nil {
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clean.Del(nodeCacheKey(owner, []byte(path)))
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}
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} else {
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if owner == (common.Hash{}) {
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rawdb.WriteAccountTrieNode(batch, []byte(path), n.Blob)
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} else {
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rawdb.WriteStorageTrieNode(batch, owner, []byte(path), n.Blob)
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}
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if clean != nil {
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clean.Set(nodeCacheKey(owner, []byte(path)), n.Blob)
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}
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}
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}
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total += len(subset)
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}
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return total
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}
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// writeStates flushes state mutations into the provided database batch as a whole.
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//
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// This function assumes the background generator is already terminated and states
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// before the supplied marker has been correctly generated.
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//
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// The codec parameter abstracts the trie-specific persistence: merkleFlatCodec
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// performs a per-entry rawdb write for each accountData/storageData entry,
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// while bintrieFlatCodec aggregates per-offset writes into per-stem
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// read-modify-writes. Either way, the genMarker filtering, cache update, and
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// metric reporting all happen inside the codec — writeStates is just a thin
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// dispatcher.
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//
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// TODO(rjl493456442) do we really need this generation marker? The state updates
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// after the marker can also be written and will be fixed by generator later if
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// it's outdated.
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func writeStates(batch ethdb.Batch, codec flatStateCodec, genMarker []byte, accountData map[common.Hash][]byte, storageData map[common.Hash]map[common.Hash][]byte, clean *fastcache.Cache) (int, int, error) {
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return codec.Flush(batch, genMarker, accountData, storageData, clean)
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}
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