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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef TaskRunnerHelper_h | 5 #ifndef TaskRunnerHelper_h |
6 #define TaskRunnerHelper_h | 6 #define TaskRunnerHelper_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "platform/wtf/Allocator.h" | 9 #include "platform/wtf/Allocator.h" |
10 #include "platform/wtf/HashTraits.h" | 10 #include "platform/wtf/HashTraits.h" |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class Document; | 14 class Document; |
15 class ExecutionContext; | 15 class ExecutionContext; |
16 class LocalFrame; | 16 class LocalFrame; |
17 class ScriptState; | 17 class ScriptState; |
18 class WebTaskRunner; | 18 class WebTaskRunner; |
| 19 class WorkerOrWorkletGlobalScope; |
| 20 class WorkerThread; |
19 | 21 |
20 enum class TaskType : unsigned { | 22 enum class TaskType : unsigned { |
21 // Speced tasks and related internal tasks should be posted to one of | 23 // Speced tasks and related internal tasks should be posted to one of |
22 // the following task runners. These task runners may be throttled. | 24 // the following task runners. These task runners may be throttled. |
23 | 25 |
24 // https://html.spec.whatwg.org/multipage/webappapis.html#generic-task-sources | 26 // https://html.spec.whatwg.org/multipage/webappapis.html#generic-task-sources |
25 // | 27 // |
26 // This task source is used for features that react to DOM manipulations, such | 28 // This task source is used for features that react to DOM manipulations, such |
27 // as things that happen in a non-blocking fashion when an element is inserted | 29 // as things that happen in a non-blocking fashion when an element is inserted |
28 // into the document. | 30 // into the document. |
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139 // object. The posted tasks are guaranteed to run in a sequence if they have the | 141 // object. The posted tasks are guaranteed to run in a sequence if they have the |
140 // same TaskType and the context objects belong to the same frame. | 142 // same TaskType and the context objects belong to the same frame. |
141 class CORE_EXPORT TaskRunnerHelper final { | 143 class CORE_EXPORT TaskRunnerHelper final { |
142 STATIC_ONLY(TaskRunnerHelper); | 144 STATIC_ONLY(TaskRunnerHelper); |
143 | 145 |
144 public: | 146 public: |
145 static RefPtr<WebTaskRunner> Get(TaskType, LocalFrame*); | 147 static RefPtr<WebTaskRunner> Get(TaskType, LocalFrame*); |
146 static RefPtr<WebTaskRunner> Get(TaskType, Document*); | 148 static RefPtr<WebTaskRunner> Get(TaskType, Document*); |
147 static RefPtr<WebTaskRunner> Get(TaskType, ExecutionContext*); | 149 static RefPtr<WebTaskRunner> Get(TaskType, ExecutionContext*); |
148 static RefPtr<WebTaskRunner> Get(TaskType, ScriptState*); | 150 static RefPtr<WebTaskRunner> Get(TaskType, ScriptState*); |
| 151 static RefPtr<WebTaskRunner> Get(TaskType, WorkerOrWorkletGlobalScope*); |
| 152 |
| 153 // Returns a WebTaskRunner that is associated to the worker / worklet global |
| 154 // scope that corresponds to the given WorkerThread. Note that WorkerThread is |
| 155 // a per-global-scope object while the naming might sound differently. |
| 156 // TODO(nhiroki): Rename WorkerThread to something that clarifies it's a |
| 157 // per-global-scope object. |
| 158 static RefPtr<WebTaskRunner> Get(TaskType, WorkerThread*); |
149 }; | 159 }; |
150 | 160 |
151 } // namespace blink | 161 } // namespace blink |
152 | 162 |
153 #endif | 163 #endif |
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