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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_DATABASE_MAINTENANCE_IMPL_H_
#define COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_DATABASE_MAINTENANCE_IMPL_H_
#include <set>
#include <tuple>
#include <utility>
#include <vector>
#include "base/containers/flat_set.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "components/segmentation_platform/internal/database/database_maintenance.h"
#include "components/segmentation_platform/internal/database/segment_info_database.h"
#include "components/segmentation_platform/internal/database/signal_storage_config.h"
#include "components/segmentation_platform/internal/database/storage_service.h"
#include "components/segmentation_platform/public/proto/segmentation_platform.pb.h"
#include "components/segmentation_platform/public/proto/types.pb.h"
class PrefService;
namespace base {
class Clock;
class Time;
} // namespace base
namespace segmentation_platform {
using proto::SegmentId;
class SegmentInfoDatabase;
class SignalDatabase;
class SignalStorageConfig;
// DatabaseMaintenanceImpl is the main implementation of the DatabaseMaintenance
// functionality.
class DatabaseMaintenanceImpl : public DatabaseMaintenance {
public:
using SignalIdentifier = std::pair<uint64_t, proto::SignalType>;
explicit DatabaseMaintenanceImpl(const base::flat_set<SegmentId>& segment_ids,
base::Clock* clock,
StorageService* storage_service,
PrefService* profile_prefs);
~DatabaseMaintenanceImpl() override;
// DatabaseMaintenance overrides.
void ExecuteMaintenanceTasks() override;
private:
// Internal struct for tracking the remaining work when cleaning up the
// signal storage.
struct CleanupState;
// All tasks currently need information about various segments, so this is
// the callback after the initial database lookup for this data.
void OnSegmentInfoCallback(
std::unique_ptr<SegmentInfoDatabase::SegmentInfoList> segment_infos);
// Returns an ordered vector of all the tasks we are supposed to perform.
// These are unfinished and also need to be linked to the next task to be
// valid.
std::vector<base::OnceCallback<void(base::OnceClosure)>> GetAllTasks(
std::set<SignalIdentifier> signal_ids);
// Signal storage cleanup.
void CleanupSignalStorage(std::set<SignalIdentifier> signal_ids,
base::OnceClosure next_action);
void CleanupSignalStorageProcessNext(
std::unique_ptr<CleanupState> cleanup_state,
base::OnceCallback<void(std::vector<CleanupItem>)> on_done_callback,
CleanupItem previous_item,
bool previous_item_deleted);
void CleanupSignalStorageDone(base::OnceClosure next_action,
std::vector<CleanupItem> cleaned_up_signals);
// Sample compaction.
void CompactSamples(std::set<SignalIdentifier> signal_ids,
base::OnceClosure next_action);
void RecordCompactionResult(proto::SignalType signal_type,
uint64_t name_hash,
bool success);
void CompactSamplesDone(base::OnceClosure next_action,
base::Time last_compation_time);
// Input.
base::flat_set<SegmentId> segment_ids_;
raw_ptr<base::Clock> clock_;
// Databases.
raw_ptr<StorageService> storage_service_;
// PrefService from profile.
raw_ptr<PrefService> profile_prefs_;
base::WeakPtrFactory<DatabaseMaintenanceImpl> weak_ptr_factory_{this};
};
} // namespace segmentation_platform
#endif // COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_DATABASE_MAINTENANCE_IMPL_H_
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