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

// Copyright 2023 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_CLIENT_RESULT_PREFS_H_
#define COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_CLIENT_RESULT_PREFS_H_

#include <optional>

#include "base/base64.h"
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "components/segmentation_platform/internal/proto/client_results.pb.h"

class PrefService;

namespace segmentation_platform {
// Caching layer for client results. Uses prefs for persistent caching and fast
// lookup even before rest of the segmentation platform has been initialized.
// The cache consists of a single pref which consists of results for all the
// clients in a map. Each map entry consists of (1) Client key : The unique key
// for the client. (2) ClientResult : Consists of (a) The result of model
// evaluation. (b) The time when the  prediction result was written to the
// prefs. Used to enforce TTL determining if the result is expired.
class ClientResultPrefs { … };

}  // namespace segmentation_platform

#endif  // COMPONENTS_SEGMENTATION_PLATFORM_INTERNAL_DATABASE_CLIENT_RESULT_PREFS_H_