示例#1
0
func makeRegularInode(fullPathname string, inode *filesystem.RegularInode,
	multiplyUsedObjects map[hash.Hash]uint64) {
	var err error
	if inode.Size > 0 {
		objectPathname := path.Join(objectsDir,
			objectcache.HashToFilename(inode.Hash))
		numCopies := multiplyUsedObjects[inode.Hash]
		if numCopies > 1 {
			numCopies--
			objectPathname += strings.Repeat("~", int(numCopies))
			if numCopies < 2 {
				delete(multiplyUsedObjects, inode.Hash)
			}
		}
		err = os.Rename(objectPathname, fullPathname)
	} else {
		_, err = os.Create(fullPathname)
	}
	if err != nil {
		logger.Println(err)
		return
	}
	if err := inode.WriteMetadata(fullPathname); err != nil {
		logger.Println(err)
	} else {
		if inode.Size > 0 {
			logger.Printf("Made inode: %s from: %x\n", fullPathname, inode.Hash)
		} else {
			logger.Printf("Made empty inode: %s\n", fullPathname)
		}
	}
}
示例#2
0
func makeRegularInode(fullPathname string,
	inode *filesystem.RegularInode, multiplyUsedObjects map[hash.Hash]uint64,
	objectsDir string, logger *log.Logger) error {
	var objectPathname string
	if inode.Size > 0 {
		objectPathname = path.Join(objectsDir,
			objectcache.HashToFilename(inode.Hash))
		numCopies := multiplyUsedObjects[inode.Hash]
		if numCopies > 1 {
			numCopies--
			objectPathname += fmt.Sprintf("~%d~", numCopies)
			if numCopies < 2 {
				delete(multiplyUsedObjects, inode.Hash)
			} else {
				multiplyUsedObjects[inode.Hash] = numCopies
			}
		}
	} else {
		objectPathname = fmt.Sprintf("%s.empty.%d", fullPathname, os.Getpid())
		if file, err := os.OpenFile(objectPathname,
			os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600); err != nil {
			return err
		} else {
			file.Close()
		}
	}
	if err := fsutil.ForceRename(objectPathname, fullPathname); err != nil {
		logger.Println(err)
		return err
	}
	if err := inode.WriteMetadata(fullPathname); err != nil {
		logger.Println(err)
		return err
	} else {
		if inode.Size > 0 {
			logger.Printf("Made inode: %s from: %x\n",
				fullPathname, inode.Hash)
		} else {
			logger.Printf("Made empty inode: %s\n", fullPathname)
		}
	}
	return nil
}