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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * 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/. */

#include "MediaPrefs.h"

#include "mozilla/ClearOnShutdown.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPtr.h"
#include "MainThreadUtils.h"

namespace mozilla {

StaticAutoPtr<MediaPrefs> MediaPrefs::sInstance;

MediaPrefs& MediaPrefs::GetSingleton() {
  if (!sInstance) {
    sInstance = new MediaPrefs;
    ClearOnShutdown(&sInstance);
  }
  MOZ_ASSERT(SingletonExists());
  return *sInstance;
}

bool MediaPrefs::SingletonExists() { return sInstance != nullptr; }

MediaPrefs::MediaPrefs() { MediaPrefs::AssertMainThread(); }

void MediaPrefs::AssertMainThread() {
  MOZ_ASSERT(NS_IsMainThread(), "this code must be run on the main thread");
}

void MediaPrefs::PrefAddVarCache(bool* aVariable, const char* aPref,
                                 bool aDefault) {
  Preferences::AddBoolVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(int32_t* aVariable, const char* aPref,
                                 int32_t aDefault) {
  Preferences::AddIntVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(uint32_t* aVariable, const char* aPref,
                                 uint32_t aDefault) {
  Preferences::AddUintVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(float* aVariable, const char* aPref,
                                 float aDefault) {
  Preferences::AddFloatVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(AtomicBool* aVariable, const char* aPref,
                                 bool aDefault) {
  Preferences::AddAtomicBoolVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(AtomicInt32* aVariable, const char* aPref,
                                 int32_t aDefault) {
  Preferences::AddAtomicIntVarCache(aVariable, aPref, aDefault);
}

void MediaPrefs::PrefAddVarCache(AtomicUint32* aVariable, const char* aPref,
                                 uint32_t aDefault) {
  Preferences::AddAtomicUintVarCache(aVariable, aPref, aDefault);
}

}  // namespace mozilla