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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 WebTaskRunner_h | 5 #ifndef WebTaskRunner_h |
6 #define WebTaskRunner_h | 6 #define WebTaskRunner_h |
7 | 7 |
8 #include "base/callback_forward.h" | 8 #include <memory> |
| 9 #include "base/callback.h" |
9 #include "public/platform/WebCommon.h" | 10 #include "public/platform/WebCommon.h" |
10 #include "public/platform/WebTraceLocation.h" | 11 #include "public/platform/WebTraceLocation.h" |
11 #include "wtf/Compiler.h" | 12 #include "wtf/Compiler.h" |
12 #include "wtf/Functional.h" | 13 #include "wtf/Functional.h" |
13 #include "wtf/RefCounted.h" | 14 #include "wtf/RefCounted.h" |
14 #include "wtf/WeakPtr.h" | 15 #include "wtf/WeakPtr.h" |
15 #include <memory> | |
16 | 16 |
17 namespace base { | 17 namespace base { |
18 class SingleThreadTaskRunner; | 18 class SingleThreadTaskRunner; |
19 } | 19 } |
20 | 20 |
21 namespace blink { | 21 namespace blink { |
22 | 22 |
23 using SingleThreadTaskRunner = base::SingleThreadTaskRunner; | 23 using SingleThreadTaskRunner = base::SingleThreadTaskRunner; |
24 | 24 |
25 // TaskHandle is associated to a task posted by | 25 // TaskHandle is associated to a task posted by |
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55 RefPtr<Runner> m_runner; | 55 RefPtr<Runner> m_runner; |
56 }; | 56 }; |
57 | 57 |
58 // The blink representation of a chromium SingleThreadTaskRunner. | 58 // The blink representation of a chromium SingleThreadTaskRunner. |
59 class BLINK_PLATFORM_EXPORT WebTaskRunner | 59 class BLINK_PLATFORM_EXPORT WebTaskRunner |
60 : public ThreadSafeRefCounted<WebTaskRunner> { | 60 : public ThreadSafeRefCounted<WebTaskRunner> { |
61 public: | 61 public: |
62 // Schedule a task to be run after |delayMs| on the the associated WebThread. | 62 // Schedule a task to be run after |delayMs| on the the associated WebThread. |
63 // Can be called from any thread. | 63 // Can be called from any thread. |
64 virtual void postDelayedTask(const WebTraceLocation&, | 64 virtual void postDelayedTask(const WebTraceLocation&, |
65 const base::Closure&, | 65 base::Closure, |
66 double delayMs) = 0; | 66 double delayMs) = 0; |
67 | 67 |
68 // Returns true if the current thread is a thread on which a task may be run. | 68 // Returns true if the current thread is a thread on which a task may be run. |
69 // Can be called from any thread. | 69 // Can be called from any thread. |
70 virtual bool runsTasksOnCurrentThread() = 0; | 70 virtual bool runsTasksOnCurrentThread() = 0; |
71 | 71 |
72 // --- | 72 // --- |
73 | 73 |
74 // Headless Chrome virtualises time for determinism and performance (fast | 74 // Headless Chrome virtualises time for determinism and performance (fast |
75 // forwarding of timers). To make this work some parts of blink (e.g. Timers) | 75 // forwarding of timers). To make this work some parts of blink (e.g. Timers) |
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119 WebTaskRunner() = default; | 119 WebTaskRunner() = default; |
120 virtual ~WebTaskRunner(); | 120 virtual ~WebTaskRunner(); |
121 | 121 |
122 private: | 122 private: |
123 DISALLOW_COPY_AND_ASSIGN(WebTaskRunner); | 123 DISALLOW_COPY_AND_ASSIGN(WebTaskRunner); |
124 }; | 124 }; |
125 | 125 |
126 } // namespace blink | 126 } // namespace blink |
127 | 127 |
128 #endif // WebTaskRunner_h | 128 #endif // WebTaskRunner_h |
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