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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_
#define SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_
#include <string>
#include <vector>
#include "base/time/time.h"
#include "sync/base/sync_export.h"
#include "sync/protocol/sync.pb.h"
namespace syncer {
// Data-type global state that must be accessed and updated on the sync thread,
// but persisted on or through the model thread.
struct SYNC_EXPORT_PRIVATE DataTypeState {
DataTypeState();
~DataTypeState();
// The latest progress markers received from the server.
sync_pb::DataTypeProgressMarker progress_marker;
// A data type context. Sent to the server in every commit or update
// request. May be updated by either by responses from the server or
// requests made on the model thread. The interpretation of this value may
// be data-type specific. Many data types ignore it.
sync_pb::DataTypeContext type_context;
// The ID of the folder node that sits at the top of this type's folder
// hierarchy. We keep this around for legacy reasons. The protocol expects
// that all nodes of a certain type are children of the same type root
// entity. This entity is delivered by the server, and may not be available
// until the first download cycle has completed.
std::string type_root_id;
// A strictly increasing counter used to generate unique values for the
// client-assigned IDs. The incrementing and ID assignment happens on the
// sync thread, but we store the value here so we can pass it back to the
// model thread for persistence. This is probably unnecessary for the
// client-tagged data types supported by non-blocking sync, but we will
// continue to emulate the directory sync's behavior for now.
int64 next_client_id;
};
struct SYNC_EXPORT_PRIVATE CommitRequestData {
CommitRequestData();
~CommitRequestData();
std::string id;
std::string client_tag_hash;
// Strictly incrementing number for in-progress commits. More information
// about its meaning can be found in comments in the files that make use of
// this struct.
int64 sequence_number;
int64 base_version;
base::Time ctime;
base::Time mtime;
std::string non_unique_name;
bool deleted;
sync_pb::EntitySpecifics specifics;
};
struct SYNC_EXPORT_PRIVATE CommitResponseData {
CommitResponseData();
~CommitResponseData();
std::string id;
std::string client_tag_hash;
int64 sequence_number;
int64 response_version;
};
struct SYNC_EXPORT_PRIVATE UpdateResponseData {
UpdateResponseData();
~UpdateResponseData();
std::string id;
std::string client_tag_hash;
int64 response_version;
base::Time ctime;
base::Time mtime;
std::string non_unique_name;
bool deleted;
sync_pb::EntitySpecifics specifics;
};
typedef std::vector<CommitRequestData> CommitRequestDataList;
typedef std::vector<CommitResponseData> CommitResponseDataList;
typedef std::vector<UpdateResponseData> UpdateResponseDataList;
} // namespace syncer
#endif // SYNC_ENGINE_NON_BLOCKING_SYNC_COMMON_H_
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