1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "media/audio/audio_manager.h" 6 7#include "base/bind.h" 8#include "base/bind_helpers.h" 9#include "base/lazy_instance.h" 10#include "base/logging.h" 11#include "base/message_loop/message_loop.h" 12#include "media/audio/fake_audio_log_factory.h" 13 14namespace media { 15namespace { 16AudioManager* g_last_created = NULL; 17} 18 19// Forward declaration of the platform specific AudioManager factory function. 20AudioManager* CreateAudioManager(AudioLogFactory* audio_log_factory); 21 22AudioManager::AudioManager() {} 23 24AudioManager::~AudioManager() { 25 CHECK(!g_last_created || g_last_created == this); 26 g_last_created = NULL; 27} 28 29// static 30AudioManager* AudioManager::Create(AudioLogFactory* audio_log_factory) { 31 CHECK(!g_last_created); 32 g_last_created = CreateAudioManager(audio_log_factory); 33 return g_last_created; 34} 35 36// static 37AudioManager* AudioManager::CreateForTesting() { 38 static base::LazyInstance<FakeAudioLogFactory>::Leaky fake_log_factory = 39 LAZY_INSTANCE_INITIALIZER; 40 return Create(fake_log_factory.Pointer()); 41} 42 43// static 44AudioManager* AudioManager::Get() { 45 return g_last_created; 46} 47 48} // namespace media 49