// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Types stored locally in the tables of a blobmap,
// but may be passed over the wire to other syncbase instances.

package localblobstore

import "time"

import "v.io/x/ref/services/syncbase/server/interfaces"

// A BlobMetadata describes information that syncbase stores for a blob it
// holds, independent of the actual content.  Compare with a Signpost, which
// may be stored for a blob that the current device does not hold (and
// indicates where it may be found).  (See
// v.io/x/ref/services/syncbase/server/interfaces/sync_types.vdl for the
// Signpost definition.)
type BlobMetadata struct {
	OwnerShares interfaces.BlobSharesBySyncgroup // >0 for any group => syncbase must keep blob.
	Referenced  time.Time                        // When structured-store reference to blob last seen.
	Accessed    time.Time                        // Last attempted access.
}

// A PerSyncgroup is blob-related data stored per syncgroup.
// It includes information that helps syncgroup members decide whether
// a peer makes a better or worse owner of a blob.
type PerSyncgroup struct {
	Priority interfaces.SgPriority
}