Golang serialize.Load函數代碼示例

// GetPeerID reads the config of node 'n' and returns its peer ID
func GetPeerID(n int) (string, error) {
	cfg, err := serial.Load(path.Join(IpfsDirN(n), "config"))
	if err != nil {
		return "", err
	}
	return cfg.Identity.PeerID, nil
}

// openConfig returns an error if the config file is not present.
func (r *FSRepo) openConfig() error {
	configFilename, err := config.Filename(r.path)
	if err != nil {
		return err
	}
	conf, err := serialize.Load(configFilename)
	if err != nil {
		return err
	}
	r.config = conf
	return nil
}

// ConfigAt returns an error if the FSRepo at the given path is not
// initialized. This function allows callers to read the config file even when
// another process is running and holding the lock.
func ConfigAt(repoPath string) (*config.Config, error) {

	// packageLock must be held to ensure that the Read is atomic.
	packageLock.Lock()
	defer packageLock.Unlock()

	configFilename, err := config.Filename(repoPath)
	if err != nil {
		return nil, err
	}
	return serialize.Load(configFilename)
}

func starBootstrap(icfg *initCfg) error {
	// '0' node is the bootstrap node
	cfgpath := path.Join(IpfsDirN(0), "config")
	bcfg, err := serial.Load(cfgpath)
	if err != nil {
		return err
	}
	bcfg.Bootstrap = nil
	bcfg.Addresses.Swarm = []string{icfg.swarmAddrForPeer(0)}
	bcfg.Addresses.API = icfg.apiAddrForPeer(0)
	bcfg.Addresses.Gateway = ""
	bcfg.Discovery.MDNS.Enabled = icfg.Mdns
	err = serial.WriteConfigFile(cfgpath, bcfg)
	if err != nil {
		return err
	}

	for i := 1; i < icfg.Count; i++ {
		cfgpath := path.Join(IpfsDirN(i), "config")
		cfg, err := serial.Load(cfgpath)
		if err != nil {
			return err
		}

		ba := fmt.Sprintf("%s/ipfs/%s", bcfg.Addresses.Swarm[0], bcfg.Identity.PeerID)
		ba = strings.Replace(ba, "0.0.0.0", "127.0.0.1", -1)
		cfg.Bootstrap = []string{ba}
		cfg.Addresses.Gateway = ""
		cfg.Discovery.MDNS.Enabled = icfg.Mdns
		cfg.Addresses.Swarm = []string{
			icfg.swarmAddrForPeer(i),
		}
		cfg.Addresses.API = icfg.apiAddrForPeer(i)
		err = serial.WriteConfigFile(cfgpath, cfg)
		if err != nil {
			return err
		}
	}
	return nil
}

func starBootstrap(icfg *initCfg) error {
	// '0' node is the bootstrap node
	cfgpath := path.Join(IpfsDirN(0), "config")
	bcfg, err := serial.Load(cfgpath)
	if err != nil {
		return err
	}
	bcfg.Bootstrap = nil
	bcfg.Addresses.Swarm = []string{icfg.swarmAddrForPeer(0)}
	bcfg.Addresses.API = icfg.apiAddrForPeer(0)
	bcfg.Addresses.Gateway = ""
	err = serial.WriteConfigFile(cfgpath, bcfg)
	if err != nil {
		return err
	}

	for i := 1; i < icfg.Count; i++ {
		cfgpath := path.Join(IpfsDirN(i), "config")
		cfg, err := serial.Load(cfgpath)
		if err != nil {
			return err
		}

		cfg.Bootstrap = []string{fmt.Sprintf("%s/ipfs/%s", bcfg.Addresses.Swarm[0], bcfg.Identity.PeerID)}
		cfg.Addresses.Gateway = ""
		cfg.Addresses.Swarm = []string{
			icfg.swarmAddrForPeer(i),
		}
		cfg.Addresses.API = icfg.apiAddrForPeer(i)
		err = serial.WriteConfigFile(cfgpath, cfg)
		if err != nil {
			return err
		}
	}
	return nil
}

func clearBootstrapping(icfg *initCfg) error {
	for i := 0; i < icfg.Count; i++ {
		cfgpath := path.Join(IpfsDirN(i), "config")
		cfg, err := serial.Load(cfgpath)
		if err != nil {
			return err
		}

		cfg.Bootstrap = nil
		cfg.Addresses.Gateway = ""
		cfg.Addresses.Swarm = []string{icfg.swarmAddrForPeer(i)}
		cfg.Addresses.API = icfg.apiAddrForPeer(i)
		err = serial.WriteConfigFile(cfgpath, cfg)
		if err != nil {
			return err
		}
	}
	return nil
}

func IpfsStart(waitall bool) error {
	var addrs []string
	n := GetNumNodes()
	for i := 0; i < n; i++ {
		dir := IpfsDirN(i)
		cmd := exec.Command("ipfs", "daemon")
		cmd.Dir = dir
		cmd.Env = envForDaemon(i)

		setupOpt(cmd)

		stdout, err := os.Create(path.Join(dir, "daemon.stdout"))
		if err != nil {
			return err
		}

		stderr, err := os.Create(path.Join(dir, "daemon.stderr"))
		if err != nil {
			return err
		}

		cmd.Stdout = stdout
		cmd.Stderr = stderr

		err = cmd.Start()
		if err != nil {
			return err
		}
		pid := cmd.Process.Pid

		fmt.Printf("Started daemon %d, pid = %d\n", i, pid)
		err = ioutil.WriteFile(path.Join(dir, "daemon.pid"), []byte(fmt.Sprint(pid)), 0666)
		if err != nil {
			return err
		}

		// Make sure node 0 is up before starting the rest so
		// bootstrapping works properly
		cfg, err := serial.Load(path.Join(IpfsDirN(i), "config"))
		if err != nil {
			return err
		}

		maddr := ma.StringCast(cfg.Addresses.API)
		_, addr, err := manet.DialArgs(maddr)
		if err != nil {
			return err
		}

		addrs = append(addrs, addr)

		err = waitOnAPI(cfg.Identity.PeerID, i)
		if err != nil {
			return err
		}
	}
	if waitall {
		for i := 0; i < n; i++ {
			err := waitOnSwarmPeers(i)
			if err != nil {
				return err
			}
		}

	}
	return nil
}