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core/rawdb: refactor headerKey to prealloc + copy

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This commit is contained in:
Sahil-4555 2025-12-16 11:07:37 +05:30
parent e20b05ec7f
commit 07e7e8f2e0
1 changed files with 9 additions and 1 deletions
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10
core/rawdb/schema.go
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@ -191,7 +191,15 @@ 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)
off += copy(out[off:], encodeBlockNumber(number))
copy(out[off:], hash.Bytes())
return out
}
// headerHashKey = headerPrefix + num (uint64 big endian) + headerHashSuffix