func deleteUnneededFiles(srpcClient *srpc.Client, subFS *filesystem.FileSystem,
imgFS *filesystem.FileSystem, logger *log.Logger) bool {
startTime := showStart("compute early files to delete")
pathsToDelete := make([]string, 0)
imgHashToInodesTable := imgFS.HashToInodesTable()
imgFilenameToInodeTable := imgFS.FilenameToInodeTable()
for pathname, inum := range subFS.FilenameToInodeTable() {
if inode, ok := subFS.InodeTable[inum].(*filesystem.RegularInode); ok {
if inode.Size > 0 {
if _, ok := imgHashToInodesTable[inode.Hash]; !ok {
pathsToDelete = append(pathsToDelete, pathname)
}
} else {
if _, ok := imgFilenameToInodeTable[pathname]; !ok {
pathsToDelete = append(pathsToDelete, pathname)
}
}
}
}
showTimeTaken(startTime)
if len(pathsToDelete) < 1 {
return false
}
updateRequest := sub.UpdateRequest{
Wait: true,
PathsToDelete: pathsToDelete}
var updateReply sub.UpdateResponse
startTime = showStart("Subd.Update() for early files to delete")
err := client.CallUpdate(srpcClient, updateRequest, &updateReply)
showTimeTaken(startTime)
if err != nil {
logger.Println(err)
}
return true
}
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()
}