blob: 4f7b07c135c08e954c2c7eb899b5d4a476bc9eb5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/audio/audio_thread_impl.h"
#include "base/message_loop/message_pump_type.h"
#include "base/optional.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/default_tick_clock.h"
#include "build/build_config.h"
#include "media/audio/audio_thread_hang_monitor.h"
namespace media {
AudioThreadImpl::AudioThreadImpl()
: thread_("AudioThread"),
hang_monitor_(nullptr, base::OnTaskRunnerDeleter(nullptr)) {
base::Thread::Options thread_options;
#if defined(OS_WIN)
thread_.init_com_with_mta(true);
#elif defined(OS_FUCHSIA)
// FIDL-based APIs require async_t, which is initialized on IO thread.
thread_options.message_pump_type = base::MessagePumpType::IO;
#endif
CHECK(thread_.StartWithOptions(thread_options));
#if defined(OS_MACOSX)
// On Mac, the audio task runner must belong to the main thread.
// See http://crbug.com/158170.
task_runner_ = base::ThreadTaskRunnerHandle::Get();
#else
task_runner_ = thread_.task_runner();
#endif
worker_task_runner_ = thread_.task_runner();
#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
// Since we run on the main thread on Mac, we don't need a hang monitor.
// https://crbug.com/946968: The hang monitor possibly causes crashes on
// Android
hang_monitor_ = AudioThreadHangMonitor::Create(
AudioThreadHangMonitor::HangAction::kDoNothing, base::nullopt,
base::DefaultTickClock::GetInstance(), task_runner_);
#endif
}
AudioThreadImpl::~AudioThreadImpl() {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
}
void AudioThreadImpl::Stop() {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
hang_monitor_.reset();
// Note that on MACOSX, we can still have tasks posted on the |task_runner_|,
// since it is the main thread task runner and we do not stop the main thread.
// But this is fine becuase none of those tasks will actually run.
thread_.Stop();
}
bool AudioThreadImpl::IsHung() const {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
return hang_monitor_ ? hang_monitor_->IsAudioThreadHung() : false;
}
base::SingleThreadTaskRunner* AudioThreadImpl::GetTaskRunner() {
return task_runner_.get();
}
base::SingleThreadTaskRunner* AudioThreadImpl::GetWorkerTaskRunner() {
return worker_task_runner_.get();
}
} // namespace media
|
