Method CleanAll

internal/caches/storage_file.go:785–872

CleanAll 清除所有的缓存

()

// CleanAll 清除所有的缓存
func (this *FileStorage) CleanAll() error {
	this.locker.Lock()
	defer this.locker.Unlock()

	// 先尝试内存缓存
	this.runMemoryStorageSafety(func(memoryStorage *MemoryStorage) {
		_ = memoryStorage.CleanAll()
	})

	err := this.list.CleanAll()
	if err != nil {
		return err
	}

	// 删除缓存和目录
	// 不能直接删除子目录，比较危险

	var rootDirs = []string{this.options.Dir}
	var subDirs = this.subDirs // copy slice
	if len(subDirs) > 0 {
		for _, subDir := range subDirs {
			rootDirs = append(rootDirs, subDir.Path)
		}
	}

	var dirNameReg = regexp.MustCompile(`^[0-9a-f]{2}$`)
	for _, rootDir := range rootDirs {
		var dir = rootDir + "/p" + types.String(this.policy.Id)
		err = func(dir string) error {
			fp, err := os.Open(dir)
			if err != nil {
				return err
			}
			defer func() {
				_ = fp.Close()
			}()

			stat, err := fp.Stat()
			if err != nil {
				return err
			}

			if !stat.IsDir() {
				return nil
			}

			// 改成待删除
			subDirs, err := fp.Readdir(-1)
			if err != nil {
				return err
			}
			for _, info := range subDirs {
				var subDir = info.Name()

				// 检查目录名
				if !dirNameReg.MatchString(subDir) {
					continue
				}