Function MarshalPostingList

posting/list.go:1520–1542

MarshalPostingList returns a KV with the marshalled posting list. The caller SHOULD SET the Key and Version for the returned KV.

(plist *pb.PostingList, alloc *z.Allocator)

// MarshalPostingList returns a KV with the marshalled posting list. The caller
// SHOULD SET the Key and Version for the returned KV.
func MarshalPostingList(plist *pb.PostingList, alloc *z.Allocator) *bpb.KV {
	x.VerifyPack(plist)
	kv := y.NewKV(alloc)
	if isPlistEmpty(plist) {
		kv.Value = nil
		kv.UserMeta = alloc.Copy([]byte{BitEmptyPosting})
		return kv
	}
	ref := plist.Pack.GetAllocRef()
	if plist.Pack != nil {
		// Set allocator to zero for marshal.
		plist.Pack.AllocRef = 0
	}

	out, err := x.MarshalToSizedBuffer(alloc.Allocate(proto.Size(plist)), plist)
	x.Check(err)
	if plist.Pack != nil {
		plist.Pack.AllocRef = ref
	}
	kv.Value = out
	kv.UserMeta = alloc.Copy([]byte{BitCompletePosting})
	return kv
}

const blockSize int = 256