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[release 1.4.12] core: short-circuit balance change if zero value

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(cherry picked from commit 25ed5fedda)
This commit is contained in:
Gustav Simonsson 2016-09-26 01:25:50 -04:00 committed by Péter Szilágyi
parent dfc63c49c7
commit 42e4e18667
1 changed files with 6 additions and 0 deletions
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6
core/state/state_object.go
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@ -154,6 +154,9 @@ func (self *StateObject) Update() {
} }
func (c *StateObject) AddBalance(amount *big.Int) { func (c *StateObject) AddBalance(amount *big.Int) {
if amount.Cmp(common.Big0) == 0 {
return
}
c.SetBalance(new(big.Int).Add(c.balance, amount)) c.SetBalance(new(big.Int).Add(c.balance, amount))
if glog.V(logger.Core) { if glog.V(logger.Core) {
@ -162,6 +165,9 @@ func (c *StateObject) AddBalance(amount *big.Int) {
} }
func (c *StateObject) SubBalance(amount *big.Int) { func (c *StateObject) SubBalance(amount *big.Int) {
if amount.Cmp(common.Big0) == 0 {
return
}
c.SetBalance(new(big.Int).Sub(c.balance, amount)) c.SetBalance(new(big.Int).Sub(c.balance, amount))
if glog.V(logger.Core) { if glog.V(logger.Core) {