func (s *Server) updateNameVolumeMap() error {
volumeUUIDs := util.ListConfigIDs(s.Root, VOLUME_CFG_PREFIX, CFG_POSTFIX)
for _, uuid := range volumeUUIDs {
volume := s.loadVolume(uuid)
if volume == nil {
return fmt.Errorf("Volume list changed for volume %v, something is wrong", uuid)
}
if volume.Name != "" {
if oldUUID, exists := s.NameVolumeMap[volume.Name]; exists && oldUUID != uuid {
return fmt.Errorf("Duplicate volume name detected! %v used by both %v and %v",
oldUUID, uuid)
}
s.NameVolumeMap[volume.Name] = uuid
}
}
log.Debugf("Current volume name list: %v", s.NameVolumeMap)
return nil
}
func (s *Server) ListVolume(volumeUUID, snapshotUUID string) ([]byte, error) {
resp := api.VolumesResponse{
Volumes: make(map[string]api.VolumeResponse),
}
var volumeUUIDs []string
if volumeUUID != "" {
volumeUUIDs = append(volumeUUIDs, volumeUUID)
} else {
volumeUUIDs = util.ListConfigIDs(s.Root, VOLUME_CFG_PREFIX, CFG_POSTFIX)
}
for _, uuid := range volumeUUIDs {
volume := s.loadVolume(uuid)
if volume == nil {
return nil, fmt.Errorf("Volume list changed for volume %v", uuid)
}
resp.Volumes[uuid] = *getVolumeInfo(volume, snapshotUUID)
}
return api.ResponseOutput(resp)
}
func (device *Device) listVolumeIDs() []string {
return util.ListConfigIDs(device.Root, DEVMAPPER_CFG_PREFIX+VOLUME_CFG_PREFIX, CFG_POSTFIX)
}