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// Copyright 2012 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.
// StatusController handles all counter and status related number crunching and
// state tracking on behalf of a SyncSession.
//
// This object may be accessed from many different threads. It will be accessed
// most often from the syncer thread. However, when update application is in
// progress it may also be accessed from the worker threads. This is safe
// because only one of them will run at a time, and the syncer thread will be
// blocked until update application completes.
//
// This object contains only global state. None of its members are per model
// type counters.
#ifndef SYNC_SESSIONS_STATUS_CONTROLLER_H_
#define SYNC_SESSIONS_STATUS_CONTROLLER_H_
#include <map>
#include <vector>
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/time/time.h"
#include "sync/base/sync_export.h"
#include "sync/internal_api/public/engine/model_safe_worker.h"
#include "sync/internal_api/public/sessions/model_neutral_state.h"
namespace syncer {
namespace sessions {
class SYNC_EXPORT_PRIVATE StatusController {
public:
explicit StatusController();
~StatusController();
// ClientToServer messages.
const ModelTypeSet commit_request_types() const {
return model_neutral_.commit_request_types;
}
void set_commit_request_types(ModelTypeSet value) {
model_neutral_.commit_request_types = value;
}
// Changelog related state.
int64 num_server_changes_remaining() const {
return model_neutral_.num_server_changes_remaining;
}
// Various conflict counters.
int num_encryption_conflicts() const;
int num_hierarchy_conflicts() const;
int num_server_conflicts() const;
// Aggregate sum of all conflicting items over all conflict types.
int TotalNumConflictingItems() const;
// Number of successfully applied updates.
int num_updates_applied() const;
int num_server_overwrites() const;
base::Time sync_start_time() const {
// The time at which we sent the first GetUpdates command for this sync.
return sync_start_time_;
}
const ModelNeutralState& model_neutral_state() const {
return model_neutral_;
}
SyncerError last_get_key_result() const;
// Download counters.
void set_num_server_changes_remaining(int64 changes_remaining);
void increment_num_updates_downloaded_by(int value);
void increment_num_tombstone_updates_downloaded_by(int value);
void increment_num_reflected_updates_downloaded_by(int value);
// Update application and conflict resolution counters.
void increment_num_updates_applied_by(int value);
void increment_num_encryption_conflicts_by(int value);
void increment_num_hierarchy_conflicts_by(int value);
void increment_num_server_conflicts();
void increment_num_local_overwrites();
void increment_num_server_overwrites();
// Commit counters.
void increment_num_successful_commits();
void increment_num_successful_bookmark_commits();
void set_num_successful_bookmark_commits(int value);
// Server communication status tracking.
void set_sync_protocol_error(const SyncProtocolError& error);
void set_last_get_key_result(const SyncerError result);
void set_last_download_updates_result(const SyncerError result);
void set_commit_result(const SyncerError result);
// A very important flag used to inform frontend of need to migrate.
void set_types_needing_local_migration(ModelTypeSet types);
void UpdateStartTime();
private:
ModelNeutralState model_neutral_;
base::Time sync_start_time_;
DISALLOW_COPY_AND_ASSIGN(StatusController);
};
} // namespace sessions
} // namespace syncer
#endif // SYNC_SESSIONS_STATUS_CONTROLLER_H_
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