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core/state: more memory efficient preimage allocation (#16663)

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atsushi-ishibashi 2019-02-07 18:44:45 +09:00 committed by Martin Holst Swende
parent c57166caa3
commit 81801ccc2b
2 changed files with 10 additions and 1 deletions
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2
core/state/statedb.go
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@ -502,7 +502,7 @@ func (self *StateDB) Copy() *StateDB {
refund: self.refund,
logs: make(map[common.Hash][]*types.Log, len(self.logs)),
logSize: self.logSize,
preimages: make(map[common.Hash][]byte),
preimages: make(map[common.Hash][]byte, len(self.preimages)),
journal: newJournal(),
}
// Copy the dirty states, logs, and preimages

9
core/state/statedb_test.go
View File

@ -276,6 +276,15 @@ func newTestAction(addr common.Address, r *rand.Rand) testAction {
},
args: make([]int64, 1),
},
{
name: "AddPreimage",
fn: func(a testAction, s *StateDB) {
preimage := []byte{1}
hash := common.BytesToHash(preimage)
s.AddPreimage(hash, preimage)
},
args: make([]int64, 1),
},
}
action := actions[r.Intn(len(actions))]
var nameargs []string