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core/state: minor optimization in state onleaf allocation

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This commit is contained in:
Martin Holst Swende 2019-12-26 11:15:13 +01:00
parent 4670907ebe
commit ca1e6b3fb4
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1 changed files with 3 additions and 1 deletions
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4
core/state/statedb.go
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@ -750,8 +750,10 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (common.Hash, error) {
if metrics.EnabledExpensive {
defer func(start time.Time) { s.AccountCommits += time.Since(start) }(time.Now())
}
return s.trie.Commit(func(leaf []byte, parent common.Hash) error {
// The onleaf func is called _serially_, so we can reuse the same account
// for unmarshalling every time.
var account Account
return s.trie.Commit(func(leaf []byte, parent common.Hash) error {
if err := rlp.DecodeBytes(leaf, &account); err != nil {
return nil
}