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) } }
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 {} }
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)) }
func init() { Logger = logpkg.NewStdLogSystem(os.Stdout, log.LstdFlags, logpkg.InfoLevel) logpkg.AddLogSystem(Logger) }