func putBatchElements(batch storage.Batch, tk storage.TKey, elems interface{}) error {
val, err := json.Marshal(elems)
if err != nil {
return err
}
batch.Put(tk, val)
return nil
}
// Given a stored label, make sure our max label tracking is updated.
func (d *Data) casMaxLabel(batch storage.Batch, v dvid.VersionID, label uint64) {
d.ml_mu.Lock()
defer d.ml_mu.Unlock()
save := false
maxLabel, found := d.MaxLabel[v]
if !found {
dvid.Errorf("Bad max label of version %d -- none found!\n", v)
maxLabel = 0
}
if maxLabel < label {
maxLabel = label
save = true
}
if save {
buf := make([]byte, 8)
binary.LittleEndian.PutUint64(buf, maxLabel)
batch.Put(maxLabelTKey, buf)
d.MaxLabel[v] = maxLabel
if d.MaxRepoLabel < maxLabel {
d.MaxRepoLabel = maxLabel
ctx := storage.NewDataContext(d, 0)
store, err := storage.SmallDataStore()
if err != nil {
dvid.Errorf("Data type labelvol had error initializing store: %v\n", err)
} else {
store.Put(ctx, maxRepoLabelTKey, buf)
}
}
}
if err := batch.Commit(); err != nil {
dvid.Errorf("batch put: %v\n", err)
return
}
}