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core/rawdb: allocate database keys with explicit size to avoid slice growth (#27772)

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Marius van der Wijden 2023-08-23 21:41:56 +02:00 committed by GitHub
parent 4abc412348
commit 2f4dbb4f90
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1 changed files with 10 additions and 2 deletions
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12
core/rawdb/schema.go
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@ -195,7 +195,11 @@ func accountSnapshotKey(hash common.Hash) []byte {
// storageSnapshotKey = SnapshotStoragePrefix + account hash + storage hash
func storageSnapshotKey(accountHash, storageHash common.Hash) []byte {
return append(append(SnapshotStoragePrefix, accountHash.Bytes()...), storageHash.Bytes()...)
buf := make([]byte, len(SnapshotStoragePrefix)+common.HashLength+common.HashLength)
n := copy(buf, SnapshotStoragePrefix)
n += copy(buf[n:], accountHash.Bytes())
copy(buf[n:], storageHash.Bytes())
return buf
}
// storageSnapshotsKey = SnapshotStoragePrefix + account hash + storage hash
@ -259,7 +263,11 @@ func accountTrieNodeKey(path []byte) []byte {
// storageTrieNodeKey = trieNodeStoragePrefix + accountHash + nodePath.
func storageTrieNodeKey(accountHash common.Hash, path []byte) []byte {
return append(append(trieNodeStoragePrefix, accountHash.Bytes()...), path...)
buf := make([]byte, len(trieNodeStoragePrefix)+common.HashLength+len(path))
n := copy(buf, trieNodeStoragePrefix)
n += copy(buf[n:], accountHash.Bytes())
copy(buf[n:], path)
return buf
}
// IsLegacyTrieNode reports whether a provided database entry is a legacy trie