blob: 586531e134cd50bd23263a595fa92c84df2f15ab (
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
|
// Copyright 2020 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_OFFLINE_AUDIO_WORKLET_THREAD_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_OFFLINE_AUDIO_WORKLET_THREAD_H_
#include "third_party/blink/renderer/core/workers/worker_thread.h"
#include "third_party/blink/renderer/core/workers/worklet_thread_holder.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace blink {
class WorkerReportingProxy;
struct ThreadCreationParams;
// OfflineAudioWorkletThread is a per-AudioWorkletGlobalScope object that has a
// reference count to the backing thread that performs AudioWorklet tasks.
// Its backing thread uses NORMAL priority no matter what the environment
// or the feature flag setting is.
class MODULES_EXPORT OfflineAudioWorkletThread final : public WorkerThread {
public:
explicit OfflineAudioWorkletThread(WorkerReportingProxy&);
~OfflineAudioWorkletThread() final;
WorkerBackingThread& GetWorkerBackingThread() final;
void ClearWorkerBackingThread() final {}
static void EnsureSharedBackingThread(const ThreadCreationParams&);
static void ClearSharedBackingThread();
private:
WorkerOrWorkletGlobalScope* CreateWorkerGlobalScope(
std::unique_ptr<GlobalScopeCreationParams>) final;
bool IsOwningBackingThread() const final { return false; }
ThreadType GetThreadType() const final {
return ThreadType::kOfflineAudioWorkletThread;
}
// Use for ref-counting of all OfflineAudioWorkletThread instances in a
// process. Incremented by the constructor and decremented by destructor.
static int s_ref_count_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_OFFLINE_AUDIO_WORKLET_THREAD_H_
|
