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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_TYPE_COMMIT_CONTRIBUTION_H_
#define SYNC_ENGINE_NON_BLOCKING_TYPE_COMMIT_CONTRIBUTION_H_
#include <vector>
#include "base/basictypes.h"
#include "sync/engine/commit_contribution.h"
#include "sync/protocol/sync.pb.h"
namespace syncer {
class ModelTypeSyncWorkerImpl;
// A non-blocking sync type's contribution to an outgoing commit message.
//
// Helps build a commit message and process its response. It collaborates
// closely with the ModelTypeSyncWorkerImpl.
class NonBlockingTypeCommitContribution : public CommitContribution {
public:
NonBlockingTypeCommitContribution(
const sync_pb::DataTypeContext& context,
const google::protobuf::RepeatedPtrField<sync_pb::SyncEntity>& entities,
const std::vector<int64>& sequence_numbers,
ModelTypeSyncWorkerImpl* worker);
virtual ~NonBlockingTypeCommitContribution();
// Implementation of CommitContribution
virtual void AddToCommitMessage(sync_pb::ClientToServerMessage* msg) OVERRIDE;
virtual SyncerError ProcessCommitResponse(
const sync_pb::ClientToServerResponse& response,
sessions::StatusController* status) OVERRIDE;
virtual void CleanUp() OVERRIDE;
virtual size_t GetNumEntries() const OVERRIDE;
private:
// A non-owned pointer back to the object that created this contribution.
ModelTypeSyncWorkerImpl* const worker_;
// The type-global context information.
const sync_pb::DataTypeContext context_;
// The set of entities to be committed, serialized as SyncEntities.
const google::protobuf::RepeatedPtrField<sync_pb::SyncEntity> entities_;
// The sequence numbers associated with the pending commits. These match up
// with the entities_ vector.
const std::vector<int64> sequence_numbers_;
// The index in the commit message where this contribution's entities are
// added. Used to correlate per-item requests with per-item responses.
size_t entries_start_index_;
// A flag used to ensure this object's contract is respected. Helps to check
// that CleanUp() is called before the object is destructed.
bool cleaned_up_;
DISALLOW_COPY_AND_ASSIGN(NonBlockingTypeCommitContribution);
};
} // namespace syncer
#endif // SYNC_ENGINE_NON_BLOCKING_TYPE_COMMIT_CONTRIBUTION_H_
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