/*
This file is part of go-ethereum
go-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
go-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @authors
* Jeffrey Wilcke <i@jev.io>
* @date 2014
*
*/
package main
import (
"flag"
"fmt"
"log"
"math/big"
"os"
"runtime"
"time"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/state"
"github.com/ethereum/go-ethereum/trie"
"github.com/ethereum/go-ethereum/vm"
)
var (
code = flag.String("code", "", "evm code")
loglevel = flag.Int("log", 4, "log level")
gas = flag.String("gas", "1000000", "gas amount")
price = flag.String("price", "0", "gas price")
dump = flag.Bool("dump", false, "dump state after run")
data = flag.String("data", "", "data")
)
func perr(v ...interface{}) {
fmt.Println(v...)
//os.Exit(1)
}
func main() {
flag.Parse()
logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))
ethutil.ReadConfig("/tm/evmtest", "/tmp/evm", "")
stateObject := state.NewStateObject([]byte("evmuser"))
closure := vm.NewClosure(nil, stateObject, stateObject, ethutil.Hex2Bytes(*code), ethutil.Big(*gas), ethutil.Big(*price))
tstart := time.Now()
env := NewVmEnv()
ret, _, e := closure.Call(vm.New(env, vm.DebugVmTy), ethutil.Hex2Bytes(*data))
logger.Flush()
if e != nil {
perr(e)
}
if *dump {
fmt.Println(string(env.state.Dump()))
}
var mem runtime.MemStats
runtime.ReadMemStats(&mem)
fmt.Printf("vm took %v\n", time.Since(tstart))
fmt.Printf(`alloc: %d
tot alloc: %d
no. malloc: %d
heap alloc: %d
heap objs: %d
num gc: %d
`, mem.Alloc, mem.TotalAlloc, mem.Mallocs, mem.HeapAlloc, mem.HeapObjects, mem.NumGC)
fmt.Printf("%x\n", ret)
}
type VmEnv struct {
state *state.State
}
func NewVmEnv() *VmEnv {
db, _ := ethdb.NewMemDatabase()
return &VmEnv{state.New(trie.New(db, ""))}
}
func (VmEnv) Origin() []byte { return nil }
func (VmEnv) BlockNumber() *big.Int { return nil }
func (VmEnv) BlockHash() []byte { return nil }
func (VmEnv) PrevHash() []byte { return nil }
func (VmEnv) Coinbase() []byte { return nil }
func (VmEnv) Time() int64 { return 0 }
func (VmEnv) GasLimit() *big.Int { return nil }
func (VmEnv) Difficulty() *big.Int { return nil }
func (VmEnv) Value() *big.Int { return nil }
func (self *VmEnv) State() *state.State { return self.state }
func (VmEnv) AddLog(*state.Log) {}
func (VmEnv) Transfer(from, to vm.Account, amount *big.Int) error {
return nil
}
