Exemple #1
0
func main() {
	logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.InfoLevel))

	// Generate the peer identity
	key, err := crypto.GenerateKey()
	if err != nil {
		fmt.Printf("Failed to generate peer key: %v.\n", err)
		os.Exit(-1)
	}
	name := common.MakeName("whisper-go", "1.0")
	shh := whisper.New()

	// Create an Ethereum peer to communicate through
	server := p2p.Server{
		PrivateKey: key,
		MaxPeers:   10,
		Name:       name,
		Protocols:  []p2p.Protocol{shh.Protocol()},
		ListenAddr: ":30300",
		NAT:        nat.Any(),
	}
	fmt.Println("Starting Ethereum peer...")
	if err := server.Start(); err != nil {
		fmt.Printf("Failed to start Ethereum peer: %v.\n", err)
		os.Exit(1)
	}

	// Send a message to self to check that something works
	payload := fmt.Sprintf("Hello world, this is %v. In case you're wondering, the time is %v", name, time.Now())
	if err := selfSend(shh, []byte(payload)); err != nil {
		fmt.Printf("Failed to self message: %v.\n", err)
		os.Exit(-1)
	}
}
Exemple #2
0
func main() {
	var (
		listenAddr  = flag.String("addr", ":30301", "listen address")
		genKey      = flag.String("genkey", "", "generate a node key and quit")
		nodeKeyFile = flag.String("nodekey", "", "private key filename")
		nodeKeyHex  = flag.String("nodekeyhex", "", "private key as hex (for testing)")
		natdesc     = flag.String("nat", "none", "port mapping mechanism (any|none|upnp|pmp|extip:<IP>)")

		nodeKey *ecdsa.PrivateKey
		err     error
	)
	flag.Parse()
	logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.DebugLevel))

	if *genKey != "" {
		writeKey(*genKey)
		os.Exit(0)
	}

	natm, err := nat.Parse(*natdesc)
	if err != nil {
		log.Fatalf("-nat: %v", err)
	}
	switch {
	case *nodeKeyFile == "" && *nodeKeyHex == "":
		log.Fatal("Use -nodekey or -nodekeyhex to specify a private key")
	case *nodeKeyFile != "" && *nodeKeyHex != "":
		log.Fatal("Options -nodekey and -nodekeyhex are mutually exclusive")
	case *nodeKeyFile != "":
		if nodeKey, err = crypto.LoadECDSA(*nodeKeyFile); err != nil {
			log.Fatalf("-nodekey: %v", err)
		}
	case *nodeKeyHex != "":
		if nodeKey, err = crypto.HexToECDSA(*nodeKeyHex); err != nil {
			log.Fatalf("-nodekeyhex: %v", err)
		}
	}

	if _, err := discover.ListenUDP(nodeKey, *listenAddr, natm, ""); err != nil {
		log.Fatal(err)
	}
	select {}
}
Exemple #3
0
func main() {
	flag.Parse()

	logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))

	vm.Debug = true
	db, _ := ethdb.NewMemDatabase()
	statedb := state.New(common.Hash{}, db)
	sender := statedb.CreateAccount(common.StringToAddress("sender"))
	receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
	receiver.SetCode(common.Hex2Bytes(*code))

	vmenv := NewEnv(statedb, common.StringToAddress("evmuser"), common.Big(*value))

	tstart := time.Now()

	ret, e := vmenv.Call(sender, receiver.Address(), common.Hex2Bytes(*data), common.Big(*gas), common.Big(*price), common.Big(*value))

	logger.Flush()
	if e != nil {
		perr(e)
	}

	if *dump {
		fmt.Println(string(statedb.Dump()))
	}

	vm.StdErrFormat(vmenv.StructLogs())

	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)
}
func init() {
	logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, logpkg.LstdFlags, logger.ErrorLevel))
}
Exemple #5
0
func init() {
	Logger = logpkg.NewStdLogSystem(os.Stdout, log.LstdFlags, logpkg.InfoLevel)
	logpkg.AddLogSystem(Logger)
}