Exemple #1
0
// parseFreeVolumeIndex parse free index from local.
func (s *Store) parseFreeVolumeIndex() (err error) {
	var (
		i     int
		id    int32
		bfile string
		ifile string
		v     *volume.Volume
		data  []byte
		ids   []int32
		lines []string
		bfs   []string
		ifs   []string
	)
	if data, err = ioutil.ReadAll(s.fvf); err != nil {
		log.Errorf("ioutil.ReadAll() error(%v)", err)
		return
	}
	lines = strings.Split(string(data), "\n")
	if _, ids, bfs, ifs, err = s.parseIndex(lines); err != nil {
		return
	}
	for i = 0; i < len(bfs); i++ {
		id, bfile, ifile = ids[i], bfs[i], ifs[i]
		if v, err = newVolume(id, bfile, ifile, s.conf); err != nil {
			return
		}
		v.Close()
		s.FreeVolumes = append(s.FreeVolumes, v)
		if id = s.fileFreeId(bfile); id > s.FreeId {
			s.FreeId = id
		}
	}
	log.V(1).Infof("current max free volume id: %d", s.FreeId)
	return
}
Exemple #2
0
// AddFreeVolume add free volumes.
func (s *Store) AddFreeVolume(n int, bdir, idir string) (sn int, err error) {
	var (
		i            int
		bfile, ifile string
		v            *volume.Volume
	)
	s.flock.Lock()
	for i = 0; i < n; i++ {
		s.FreeId++
		bfile, ifile = s.freeFile(s.FreeId, bdir, idir)
		if myos.Exist(bfile) || myos.Exist(ifile) {
			continue
		}
		if v, err = newVolume(volumeFreeId, bfile, ifile, s.conf); err != nil {
			// if no free space, delete the file
			os.Remove(bfile)
			os.Remove(ifile)
			break
		}
		v.Close()
		s.FreeVolumes = append(s.FreeVolumes, v)
		sn++
	}
	err = s.saveFreeVolumeIndex()
	s.flock.Unlock()
	return
}
Exemple #3
0
// Close close the store.
// WARN the global variable store must first set nil and reject any other
// requests then safty close.
func (s *Store) Close() {
	var v *volume.Volume
	if s.vf != nil {
		s.vf.Close()
	}
	if s.fvf != nil {
		s.fvf.Close()
	}
	if s.Volumes != nil {
		for _, v = range s.Volumes {
			v.Close()
		}
	}
	if s.zk != nil {
		s.zk.Close()
	}
	return
}
Exemple #4
0
// Close close the store.
// WARN the global variable store must first set nil and reject any other
// requests then safty close.
func (s *Store) Close() {
	log.Info("store close")
	var v *volume.Volume
	if s.vf != nil {
		s.vf.Close()
	}
	if s.fvf != nil {
		s.fvf.Close()
	}
	for _, v = range s.Volumes {
		log.Infof("volume[%d] close", v.Id)
		v.Close()
	}
	if s.zk != nil {
		s.zk.Close()
	}
	return
}