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Added Paranoia check for VM execution

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This commit is contained in:
obscuren
2014-06-30 20:03:31 +02:00
parent 82272ee08a
commit ed276cd7c2
7 changed files with 57 additions and 114 deletions
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31
ethchain/state_transition.go
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@ -226,20 +226,14 @@ func (self *StateTransition) transferValue(sender, receiver *StateObject) error
return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Amount)
}
//if self.value.Cmp(ethutil.Big0) > 0 {
// Subtract the amount from the senders account
sender.SubAmount(self.value)
// Add the amount to receivers account which should conclude this transaction
receiver.AddAmount(self.value)
//statelogger.Debugf("%x => %x (%v)\n", sender.Address()[:4], receiver.Address()[:4], self.value)
//}
return nil
}
var testAddr = ethutil.FromHex("ec4f34c97e43fbb2816cfd95e388353c7181dab1")
func (self *StateTransition) Eval(script []byte, context *StateObject) (ret []byte, err error, deepErr bool) {
var (
block = self.block
@ -263,6 +257,7 @@ func (self *StateTransition) Eval(script []byte, context *StateObject) (ret []by
deepErr = vm.err != nil
/*
var testAddr = ethutil.FromHex("ec4f34c97e43fbb2816cfd95e388353c7181dab1")
if bytes.Compare(testAddr, context.Address()) == 0 {
trie := context.state.trie
trie.NewIterator().Each(func(key string, v *ethutil.Value) {
@ -273,7 +268,7 @@ func (self *StateTransition) Eval(script []byte, context *StateObject) (ret []by
}
*/
Paranoia := true
Paranoia := true // TODO Create a flag for this
if Paranoia {
var (
trie = context.state.trie
@ -287,17 +282,19 @@ func (self *StateTransition) Eval(script []byte, context *StateObject) (ret []by
a := ethutil.NewValue(trie2.Root).Bytes()
b := ethutil.NewValue(context.state.trie.Root).Bytes()
if bytes.Compare(a, b) != 0 {
fmt.Printf("original: %x\n", trie.Root)
trie.NewIterator().Each(func(key string, v *ethutil.Value) {
v.Decode()
fmt.Printf("%x : %x\n", key, v.Str())
})
/*
statelogger.Debugf("(o): %x\n", trie.Root)
trie.NewIterator().Each(func(key string, v *ethutil.Value) {
v.Decode()
statelogger.Debugf("%x : %x\n", key, v.Str())
})
fmt.Printf("new: %x\n", trie2.Root)
trie2.NewIterator().Each(func(key string, v *ethutil.Value) {
v.Decode()
fmt.Printf("%x : %x\n", key, v.Str())
})
statelogger.Debugf("(c): %x\n", trie2.Root)
trie2.NewIterator().Each(func(key string, v *ethutil.Value) {
v.Decode()
statelogger.Debugf("%x : %x\n", key, v.Str())
})
*/
return nil, fmt.Errorf("PARANOIA: Different state object roots during copy"), false
}