Golang UpdateRequest.Wait方法代碼示例

func pushFile(getSubClient getSubClientFunc, source, dest string) error {
	var sourceStat wsyscall.Stat_t
	if err := wsyscall.Stat(source, &sourceStat); err != nil {
		return err
	}
	sourceFile, err := os.Open(source)
	if err != nil {
		return err
	}
	defer sourceFile.Close()
	srpcClient := getSubClient()
	objClient := objclient.AttachObjectClient(srpcClient)
	defer objClient.Close()
	if err != nil {
		return err
	}
	hashVal, _, err := objClient.AddObject(sourceFile, uint64(sourceStat.Size),
		nil)
	if err != nil {
		return err
	}
	newRegularInode := &filesystem.RegularInode{
		Mode:             filesystem.FileMode(sourceStat.Mode),
		Uid:              sourceStat.Uid,
		Gid:              sourceStat.Gid,
		MtimeNanoSeconds: int32(sourceStat.Mtim.Nsec),
		MtimeSeconds:     sourceStat.Mtim.Sec,
		Size:             uint64(sourceStat.Size),
		Hash:             hashVal}
	newInode := sub.Inode{Name: dest, GenericInode: newRegularInode}
	var updateRequest sub.UpdateRequest
	var updateReply sub.UpdateResponse
	updateRequest.Wait = true
	updateRequest.InodesToMake = append(updateRequest.InodesToMake, newInode)
	if *triggersFile != "" {
		updateRequest.Triggers, err = triggers.Load(*triggersFile)
		if err != nil {
			return err
		}
	} else if *triggersString != "" {
		updateRequest.Triggers, err = triggers.Decode([]byte(*triggersString))
		if err != nil {
			return err
		}
	}
	startTime := showStart("Subd.Update()")
	err = client.CallUpdate(srpcClient, updateRequest, &updateReply)
	showTimeTaken(startTime)
	return err
}

func pushImage(getSubClient getSubClientFunc, imageName string) error {
	logger := log.New(os.Stderr, "", log.LstdFlags)
	computedInodes := make(map[string]*filesystem.RegularInode)
	// Start querying the imageserver for the image.
	imageServerAddress := fmt.Sprintf("%s:%d",
		*imageServerHostname, *imageServerPortNum)
	imgChannel := getImageChannel(imageServerAddress, imageName, timeoutTime)
	startTime := showStart("getSubClient()")
	srpcClient := getSubClient()
	showTimeTaken(startTime)
	subObj := lib.Sub{
		Hostname:       *subHostname,
		Client:         srpcClient,
		ComputedInodes: computedInodes}
	if *computedFilesRoot == "" {
		subObj.ObjectGetter = nullObjectGetterType{}
	} else {
		fs, err := scanner.ScanFileSystem(*computedFilesRoot, nil, nil, nil,
			nil, nil)
		if err != nil {
			return err
		}
		subObj.ObjectGetter = fs
		for filename, inum := range fs.FilenameToInodeTable() {
			if inode, ok := fs.InodeTable[inum].(*filesystem.RegularInode); ok {
				computedInodes[filename] = inode
			}
		}
	}
	startTime = showStart("<-imgChannel")
	imageResult := <-imgChannel
	showTimeTaken(startTime)
	fmt.Fprintf(os.Stderr, "Background image fetch took %s\n",
		format.Duration(imageResult.duration))
	img := imageResult.image
	var err error
	if *filterFile != "" {
		img.Filter, err = filter.Load(*filterFile)
		if err != nil {
			return err
		}
	}
	if *triggersFile != "" {
		img.Triggers, err = triggers.Load(*triggersFile)
		if err != nil {
			return err
		}
	} else if *triggersString != "" {
		img.Triggers, err = triggers.Decode([]byte(*triggersString))
		if err != nil {
			return err
		}
	}
	if err := pollFetchAndPush(&subObj, img, imageServerAddress, timeoutTime,
		logger); err != nil {
		return err
	}
	var updateRequest sub.UpdateRequest
	var updateReply sub.UpdateResponse
	startTime = showStart("lib.BuildUpdateRequest()")
	if lib.BuildUpdateRequest(subObj, img, &updateRequest, true, logger) {
		showBlankLine()
		return errors.New("missing computed file(s)")
	}
	showTimeTaken(startTime)
	updateRequest.ImageName = imageName
	updateRequest.Wait = true
	startTime = showStart("Subd.Update()")
	err = client.CallUpdate(srpcClient, updateRequest, &updateReply)
	if err != nil {
		showBlankLine()
		return err
	}
	showTimeTaken(startTime)
	return nil
}