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trie: don't keep []byte from DB load around

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Nodes decoded from a DB load kept hashes and values as sub-slices of
the DB value. This can be a problem because loading from leveldb often
returns []byte with a cap that's larger than necessary, increasing
memory usage.
This commit is contained in:
Felix Lange 2016-10-14 04:10:10 +02:00
parent 2819f1c324
commit 36e4f76cad
1 changed files with 3 additions and 3 deletions
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6
trie/node.go
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@ -130,7 +130,7 @@ func decodeShort(hash, buf, elems []byte) (node, error) {
if err != nil {
return nil, fmt.Errorf("invalid value node: %v", err)
}
return &shortNode{key, valueNode(val), hash, false}, nil
return &shortNode{key, append(valueNode{}, val...), hash, false}, nil
}
r, _, err := decodeRef(rest)
if err != nil {
@ -153,7 +153,7 @@ func decodeFull(hash, buf, elems []byte) (*fullNode, error) {
return n, err
}
if len(val) > 0 {
n.Children[16] = valueNode(val)
n.Children[16] = append(valueNode{}, val...)
}
return n, nil
}
@ -179,7 +179,7 @@ func decodeRef(buf []byte) (node, []byte, error) {
// empty node
return nil, rest, nil
case kind == rlp.String && len(val) == 32:
return hashNode(val), rest, nil
return append(hashNode{}, val...), rest, nil
default:
return nil, nil, fmt.Errorf("invalid RLP string size %d (want 0 or 32)", len(val))
}