2014-11-10 02:47:37 -08:00
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/*
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This file is part of go-ethereum
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go-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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go-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @authors
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* Jeffrey Wilcke <i@jev.io>
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*/
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package main
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import (
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"flag"
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"fmt"
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"log"
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"math/big"
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"os"
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"runtime"
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"time"
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2015-03-22 04:12:29 -07:00
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"github.com/ethereum/go-ethereum/common"
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2014-12-04 02:30:41 -08:00
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"github.com/ethereum/go-ethereum/core"
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2015-03-24 07:27:05 -07:00
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"github.com/ethereum/go-ethereum/core/state"
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2014-12-04 02:30:41 -08:00
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"github.com/ethereum/go-ethereum/core/types"
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2015-03-24 07:27:05 -07:00
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"github.com/ethereum/go-ethereum/core/vm"
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2014-11-10 03:42:16 -08:00
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"github.com/ethereum/go-ethereum/ethdb"
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2014-11-10 02:47:37 -08:00
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"github.com/ethereum/go-ethereum/logger"
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)
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var (
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code = flag.String("code", "", "evm code")
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loglevel = flag.Int("log", 4, "log level")
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gas = flag.String("gas", "1000000000", "gas amount")
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price = flag.String("price", "0", "gas price")
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value = flag.String("value", "0", "tx value")
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dump = flag.Bool("dump", false, "dump state after run")
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2014-11-11 13:51:26 -08:00
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data = flag.String("data", "", "data")
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)
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func perr(v ...interface{}) {
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fmt.Println(v...)
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//os.Exit(1)
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}
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func main() {
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flag.Parse()
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logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))
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2015-06-10 12:09:12 -07:00
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vm.Debug = true
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db, _ := ethdb.NewMemDatabase()
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statedb := state.New(common.Hash{}, db)
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sender := statedb.CreateAccount(common.StringToAddress("sender"))
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receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
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receiver.SetCode(common.Hex2Bytes(*code))
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vmenv := NewEnv(statedb, common.StringToAddress("evmuser"), common.Big(*value))
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tstart := time.Now()
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2015-03-16 03:27:38 -07:00
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ret, e := vmenv.Call(sender, receiver.Address(), common.Hex2Bytes(*data), common.Big(*gas), common.Big(*price), common.Big(*value))
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logger.Flush()
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if e != nil {
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perr(e)
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}
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2014-11-10 03:42:16 -08:00
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if *dump {
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fmt.Println(string(statedb.Dump()))
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}
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2015-06-10 12:09:12 -07:00
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vm.StdErrFormat(vmenv.StructLogs())
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2014-11-10 02:47:37 -08:00
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var mem runtime.MemStats
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runtime.ReadMemStats(&mem)
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fmt.Printf("vm took %v\n", time.Since(tstart))
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fmt.Printf(`alloc: %d
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tot alloc: %d
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no. malloc: %d
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heap alloc: %d
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heap objs: %d
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num gc: %d
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`, mem.Alloc, mem.TotalAlloc, mem.Mallocs, mem.HeapAlloc, mem.HeapObjects, mem.NumGC)
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fmt.Printf("%x\n", ret)
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}
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type VMEnv struct {
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state *state.StateDB
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block *types.Block
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transactor *common.Address
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value *big.Int
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depth int
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Gas *big.Int
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time uint64
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logs []vm.StructLog
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}
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func NewEnv(state *state.StateDB, transactor common.Address, value *big.Int) *VMEnv {
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return &VMEnv{
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state: state,
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transactor: &transactor,
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value: value,
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time: uint64(time.Now().Unix()),
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}
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}
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func (self *VMEnv) State() *state.StateDB { return self.state }
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func (self *VMEnv) Origin() common.Address { return *self.transactor }
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func (self *VMEnv) BlockNumber() *big.Int { return common.Big0 }
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func (self *VMEnv) Coinbase() common.Address { return *self.transactor }
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func (self *VMEnv) Time() uint64 { return self.time }
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func (self *VMEnv) Difficulty() *big.Int { return common.Big1 }
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func (self *VMEnv) BlockHash() []byte { return make([]byte, 32) }
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func (self *VMEnv) Value() *big.Int { return self.value }
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func (self *VMEnv) GasLimit() *big.Int { return big.NewInt(1000000000) }
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func (self *VMEnv) VmType() vm.Type { return vm.StdVmTy }
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func (self *VMEnv) Depth() int { return 0 }
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func (self *VMEnv) SetDepth(i int) { self.depth = i }
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func (self *VMEnv) GetHash(n uint64) common.Hash {
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if self.block.Number().Cmp(big.NewInt(int64(n))) == 0 {
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return self.block.Hash()
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}
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return common.Hash{}
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}
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func (self *VMEnv) AddStructLog(log vm.StructLog) {
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self.logs = append(self.logs, log)
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}
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func (self *VMEnv) StructLogs() []vm.StructLog {
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return self.logs
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}
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func (self *VMEnv) AddLog(log *state.Log) {
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self.state.AddLog(log)
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}
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func (self *VMEnv) Transfer(from, to vm.Account, amount *big.Int) error {
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return vm.Transfer(from, to, amount)
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}
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func (self *VMEnv) vm(addr *common.Address, data []byte, gas, price, value *big.Int) *core.Execution {
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return core.NewExecution(self, addr, data, gas, price, value)
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}
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func (self *VMEnv) Call(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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exe := self.vm(&addr, data, gas, price, value)
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ret, err := exe.Call(addr, caller)
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self.Gas = exe.Gas
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return ret, err
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}
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func (self *VMEnv) CallCode(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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a := caller.Address()
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exe := self.vm(&a, data, gas, price, value)
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return exe.Call(addr, caller)
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}
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func (self *VMEnv) Create(caller vm.ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ContextRef) {
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exe := self.vm(nil, data, gas, price, value)
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return exe.Create(caller)
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}
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