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core/rawdb: reduce allocs in block key functions

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This commit is contained in:
m6xwzzz 2025-12-13 13:15:35 +08:00
parent a9eaf2ffd8
commit b658ce7548
1 changed files with 12 additions and 1 deletions
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13
core/rawdb/schema.go
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@ -191,7 +191,18 @@ func headerKeyPrefix(number uint64) []byte {
// headerKey = headerPrefix + num (uint64 big endian) + hash
func headerKey(number uint64, hash common.Hash) []byte {
return append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
totalLen := len(headerPrefix) + 8 + common.HashLength
out := make([]byte, totalLen)
off := 0
off += copy(out[off:], headerPrefix)
var enc [8]byte
binary.BigEndian.PutUint64(enc[:], number)
off += copy(out[off:], enc[:])
copy(out[off:], hash.Bytes())
return out
}
// headerHashKey = headerPrefix + num (uint64 big endian) + headerHashSuffix