func (t *BleveDestPartition) OpaqueSet(partition string, value []byte) error {
t.m.Lock()
t.lastOpaque = append(t.lastOpaque[0:0], value...)
t.lastUUID = cbgt.ParseOpaqueToUUID(value)
t.batch.SetInternal(t.partitionOpaque, t.lastOpaque)
t.m.Unlock()
return nil
}
func (t *BleveDestPartition) OpaqueGet(partition string) ([]byte, uint64, error) {
t.m.Lock()
if t.lastOpaque == nil {
// TODO: Need way to control memory alloc during GetInternal(),
// perhaps with optional memory allocator func() parameter?
value, err := t.bindex.GetInternal(t.partitionOpaque)
if err != nil {
t.m.Unlock()
return nil, 0, err
}
t.lastOpaque = append([]byte(nil), value...) // Note: copies value.
t.lastUUID = cbgt.ParseOpaqueToUUID(value)
}
if t.seqMax <= 0 {
// TODO: Need way to control memory alloc during GetInternal(),
// perhaps with optional memory allocator func() parameter?
buf, err := t.bindex.GetInternal([]byte(t.partition))
if err != nil {
t.m.Unlock()
return nil, 0, err
}
if len(buf) <= 0 {
t.m.Unlock()
return t.lastOpaque, 0, nil // No seqMax buf is a valid case.
}
if len(buf) != 8 {
t.m.Unlock()
return nil, 0, fmt.Errorf("bleve: unexpected size for seqMax bytes")
}
t.seqMax = binary.BigEndian.Uint64(buf[0:8])
binary.BigEndian.PutUint64(t.seqMaxBuf, t.seqMax)
}
lastOpaque, seqMax := t.lastOpaque, t.seqMax
t.m.Unlock()
return lastOpaque, seqMax, nil
}