diff options
Diffstat (limited to 'vm/execution.go')
-rw-r--r-- | vm/execution.go | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/vm/execution.go b/vm/execution.go deleted file mode 100644 index 8c04cf536..000000000 --- a/vm/execution.go +++ /dev/null @@ -1,96 +0,0 @@ -package vm - -import ( - "fmt" - "math/big" - - "github.com/ethereum/go-ethereum/ethutil" - "github.com/ethereum/go-ethereum/state" -) - -type Execution struct { - vm VirtualMachine - address, input []byte - Gas, price, value *big.Int - object *state.StateObject - SkipTransfer bool -} - -func NewExecution(vm VirtualMachine, address, input []byte, gas, gasPrice, value *big.Int) *Execution { - return &Execution{vm: vm, address: address, input: input, Gas: gas, price: gasPrice, value: value} -} - -func (self *Execution) Addr() []byte { - return self.address -} - -func (self *Execution) Exec(codeAddr []byte, caller ClosureRef) ([]byte, error) { - // Retrieve the executing code - code := self.vm.Env().State().GetCode(codeAddr) - - return self.exec(code, codeAddr, caller) -} - -func (self *Execution) exec(code, caddr []byte, caller ClosureRef) (ret []byte, err error) { - env := self.vm.Env() - - vmlogger.Debugf("pre state %x\n", env.State().Root()) - snapshot := env.State().Copy() - defer func() { - if IsDepthErr(err) || IsOOGErr(err) { - env.State().Set(snapshot) - } - vmlogger.Debugf("post state %x\n", env.State().Root()) - }() - - msg := env.State().Manifest().AddMessage(&state.Message{ - To: self.address, From: caller.Address(), - Input: self.input, - Origin: env.Origin(), - Block: env.BlockHash(), Timestamp: env.Time(), Coinbase: env.Coinbase(), Number: env.BlockNumber(), - Value: self.value, - }) - - from, to := caller.Object(), env.State().GetOrNewStateObject(self.address) - // Skipping transfer is used on testing for the initial call - if !self.SkipTransfer { - err = env.Transfer(from, to, self.value) - } - - if err != nil { - caller.ReturnGas(self.Gas, self.price) - - err = fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, from.Balance) - } else { - self.object = to - // Pre-compiled contracts (address.go) 1, 2 & 3. - naddr := ethutil.BigD(caddr).Uint64() - if p := Precompiled[naddr]; p != nil { - if self.Gas.Cmp(p.Gas) >= 0 { - ret = p.Call(self.input) - self.vm.Printf("NATIVE_FUNC(%x) => %x", naddr, ret) - self.vm.Endl() - } - } else { - // Create a new callable closure - c := NewClosure(msg, caller, to, code, self.Gas, self.price) - c.exe = self - - if self.vm.Depth() == MaxCallDepth { - c.UseGas(self.Gas) - - return c.Return(nil), DepthError{} - } - - // Executer the closure and get the return value (if any) - ret, _, err = c.Call(self.vm, self.input) - msg.Output = ret - } - } - - return -} - -func (self *Execution) Create(caller ClosureRef) (ret []byte, err error) { - return self.exec(self.input, nil, caller) -} |