BenchmarkStorageParent.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef include_dom_media_mediacapabilities_BenchmarkStorageParent_h

#define include_dom_media_mediacapabilities_BenchmarkStorageParent_h

#include "mozilla/PBenchmarkStorageParent.h"

namespace mozilla {

class KeyValueStorage;

using mozilla::ipc::IPCResult;

class BenchmarkStorageParent : public PBenchmarkStorageParent {

  friend class PBenchmarkStorageParent;

 public:

  BenchmarkStorageParent();

  IPCResult RecvPut(const nsCString& aDbName, const nsCString& aKey,

                    const int32_t& aValue);

  IPCResult RecvGet(const nsCString& aDbName, const nsCString& aKey,

                    GetResolver&& aResolve);

  IPCResult RecvCheckVersion(const nsCString& aDbName, int32_t aVersion);

  /* Helper methods exposed here to be tested via gtest. */

  static void MovingAverage(int32_t& aAverage, int32_t& aWindow,

                            const int32_t aValue);

  static int32_t ParseStoredValue(int32_t aValue, int32_t& aWindow);

  static int32_t PrepareStoredValue(int32_t aScore, int32_t aWindow);

 private:

  RefPtr<KeyValueStorage> mStorage;

};

}  // namespace mozilla

#endif  // include_dom_media_mediacapabilities_BenchmarkStorageParent_h