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trie/hasher: skip rlp encoding when not needed

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This commit is contained in:
Martin Holst Swende 2019-12-16 11:41:19 +01:00
parent 2a9d1e7067
commit 40789748f7
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GPG key ID: 683B438C05A5DDF0
1 changed files with 10 additions and 10 deletions
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20
trie/hasher.go
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@ -165,20 +165,20 @@ func (h *hasher) store(n node, db *Database, force bool) (node, error) {
if _, isHash := n.(hashNode); n == nil || isHash {
return n, nil
}
// Generate the RLP encoding of the node
h.tmp.Reset()
if err := rlp.Encode(&h.tmp, n); err != nil {
panic("encode error: " + err.Error())
}
if len(h.tmp) < 32 && !force {
return n, nil // Nodes smaller than 32 bytes are stored inside their parent
}
// Larger nodes are replaced by their hash and stored in the database.
// We might already have the hash
hash, _ := n.cache()
if hash == nil {
// Generate the RLP encoding of the node
h.tmp.Reset()
if err := rlp.Encode(&h.tmp, n); err != nil {
panic("encode error: " + err.Error())
}
if len(h.tmp) < 32 && !force {
return n, nil // Nodes smaller than 32 bytes are stored inside their parent
}
// Larger nodes are replaced by their hash and stored in the database.
hash = h.makeHashNode(h.tmp)
}
if db != nil {
// We are pooling the trie nodes into an intermediate memory cache
hash := common.BytesToHash(hash)