gaspersic/go-ethereum
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Optimisations and fixed a couple of DDOS issues in the miner

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This commit is contained in:
obscuren
2015-02-19 22:33:22 +01:00
parent c14071df9d
commit fa4cbad315
15 changed files with 156 additions and 104 deletions
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4
state/state_object.go
View File

@ -53,6 +53,7 @@ type StateObject struct {
// When an object is marked for deletion it will be delete from the trie
// during the "update" phase of the state transition
remove bool
dirty bool
}
func (self *StateObject) Reset() {
@ -211,6 +212,8 @@ func (self *StateObject) BuyGas(gas, price *big.Int) error {
return GasLimitError(self.gasPool, gas)
}
self.gasPool.Sub(self.gasPool, gas)
rGas := new(big.Int).Set(gas)
rGas.Mul(rGas, price)
@ -241,6 +244,7 @@ func (self *StateObject) Copy() *StateObject {
stateObject.storage = self.storage.Copy()
stateObject.gasPool.Set(self.gasPool)
stateObject.remove = self.remove
stateObject.dirty = self.dirty
return stateObject
}

47
state/statedb.go
View File

@ -78,13 +78,6 @@ func (self *StateDB) GetNonce(addr []byte) uint64 {
return 0
}
func (self *StateDB) SetNonce(addr []byte, nonce uint64) {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.Nonce = nonce
}
}
func (self *StateDB) GetCode(addr []byte) []byte {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
@ -94,14 +87,6 @@ func (self *StateDB) GetCode(addr []byte) []byte {
return nil
}
func (self *StateDB) SetCode(addr, code []byte) {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.SetCode(code)
}
}
// TODO vars
func (self *StateDB) GetState(a, b []byte) []byte {
stateObject := self.GetStateObject(a)
if stateObject != nil {
@ -111,10 +96,27 @@ func (self *StateDB) GetState(a, b []byte) []byte {
return nil
}
func (self *StateDB) SetNonce(addr []byte, nonce uint64) {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.Nonce = nonce
stateObject.dirty = true
}
}
func (self *StateDB) SetCode(addr, code []byte) {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.SetCode(code)
stateObject.dirty = true
}
}
func (self *StateDB) SetState(addr, key []byte, value interface{}) {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.SetState(key, ethutil.NewValue(value))
stateObject.dirty = true
}
}
@ -122,6 +124,7 @@ func (self *StateDB) Delete(addr []byte) bool {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
stateObject.MarkForDeletion()
stateObject.dirty = true
return true
}
@ -282,16 +285,18 @@ func (self *StateDB) Refunds() map[string]*big.Int {
}
func (self *StateDB) Update(gasUsed *big.Int) {
self.refund = make(map[string]*big.Int)
for _, stateObject := range self.stateObjects {
if stateObject.remove {
self.DeleteStateObject(stateObject)
} else {
stateObject.Sync()
if stateObject.dirty {
if stateObject.remove {
self.DeleteStateObject(stateObject)
} else {
stateObject.Sync()
self.UpdateStateObject(stateObject)
self.UpdateStateObject(stateObject)
}
stateObject.dirty = false
}
}
}