func copyMissingObjects(fs *filesystem.FileSystem, imageSClient *srpc.Client,
objectClient *objectclient.ObjectClient, subName string) error {
// Check to see which objects are in the objectserver.
hashes := make([]hash.Hash, 0, fs.NumRegularInodes)
for hash, _ := range fs.HashToInodesTable() {
hashes = append(hashes, hash)
}
objectSizes, err := objectClient.CheckObjects(hashes)
if err != nil {
return err
}
missingHashes := make([]hash.Hash, 0)
for index, size := range objectSizes {
if size < 1 {
missingHashes = append(missingHashes, hashes[index])
}
}
if len(missingHashes) < 1 {
return nil
}
// Get missing objects from sub.
filesForMissingObjects := make([]string, 0, len(missingHashes))
for _, hash := range missingHashes {
if inums, ok := fs.HashToInodesTable()[hash]; !ok {
return fmt.Errorf("no inode for object: %x", hash)
} else if files, ok := fs.InodeToFilenamesTable()[inums[0]]; !ok {
return fmt.Errorf("no file for inode: %d", inums[0])
} else {
filesForMissingObjects = append(filesForMissingObjects, files[0])
}
}
objAdderQueue, err := objectclient.NewObjectAdderQueue(imageSClient)
if err != nil {
return err
}
subClient, err := srpc.DialHTTP("tcp",
fmt.Sprintf("%s:%d", subName, constants.SubPortNumber), 0)
if err != nil {
return fmt.Errorf("error dialing %s", err)
}
defer subClient.Close()
if err := subclient.GetFiles(subClient, filesForMissingObjects,
func(reader io.Reader, size uint64) error {
_, err := objAdderQueue.Add(reader, size)
return err
}); err != nil {
return err
}
return objAdderQueue.Close()
}
func getFile(srpcClient *srpc.Client, remoteFile, localFile string) error {
readerFunc := func(reader io.Reader, size uint64) error {
file, err := os.Create(localFile)
if err != nil {
return err
}
defer file.Close()
writer := bufio.NewWriter(file)
defer writer.Flush()
_, err = io.Copy(writer, &io.LimitedReader{R: reader, N: int64(size)})
return err
}
rfiles := make([]string, 1)
rfiles[0] = remoteFile
return client.GetFiles(srpcClient, rfiles, readerFunc)
}