chromium/components/segmentation_platform/internal/database/signal_database.h

// 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_SIGNAL_DATABASE_H_
#define COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_SIGNAL_DATABASE_H_

#include <cstdint>
#include <optional>
#include <utility>
#include <vector>

#include "base/functional/callback_forward.h"
#include "base/time/time.h"
#include "components/segmentation_platform/internal/database/ukm_types.h"
#include "components/segmentation_platform/public/database_client.h"
#include "components/segmentation_platform/public/proto/types.pb.h"

namespace segmentation_platform {

// Responsible for storing histogram signals and user action events in a
// database. The signal samples are lazily bucketed into daily buckets for
// efficient storage and retrieval. A periodic job is responsible for running
// the compaction and deletion of old entries.
class SignalDatabase { … };

}  // namespace segmentation_platform

#endif  // COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_SIGNAL_DATABASE_H_