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Side by Side Diff: base/threading/sequenced_task_runner_impl.h

Issue 9663075: Implementation of SequencedTaskRunner based on SequencedWorkerPool. (Closed) Base URL: http://src.chromium.org/svn/trunk/src/
Patch Set: Created 8 years, 9 months ago
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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 #ifndef BASE_THREADING_SEQUENCED_TASK_RUNNER_IMPL_H_
6 #define BASE_THREADING_SEQUENCED_TASK_RUNNER_IMPL_H_
7 #pragma once
8
9 #include "base/compiler_specific.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "base/memory/weak_ptr.h"
12 #include "base/sequenced_task_runner.h"
13 #include "base/threading/sequenced_worker_pool.h"
14
15 namespace base {
16
17 // Note that this class is RefCountedThreadSafe (inherited from TaskRunner).
18 class BASE_EXPORT SequencedTaskRunnerImpl
19 : public base::SequencedTaskRunner,
20 public base::SupportsWeakPtr<SequencedTaskRunnerImpl> {
21 public:
22 SequencedTaskRunnerImpl(scoped_refptr<SequencedWorkerPool> pool,
23 SequencedWorkerPool::SequenceToken token);
24
25 // TaskRunner implementation
26 virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
27 const Closure& task,
28 int64 delay_ms) OVERRIDE;
29 virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
30 const Closure& task,
31 TimeDelta delay) OVERRIDE;
32 virtual bool RunsTasksOnCurrentThread() const OVERRIDE;
33
34 // SequencedTaskRunner implementation
35 virtual bool PostNonNestableDelayedTask(
36 const tracked_objects::Location& from_here,
37 const Closure& task,
38 int64 delay_ms) OVERRIDE;
39 virtual bool PostNonNestableDelayedTask(
40 const tracked_objects::Location& from_here,
41 const Closure& task,
42 base::TimeDelta delay) OVERRIDE;
43
44 private:
45 ~SequencedTaskRunnerImpl();
46
47 scoped_refptr<SequencedWorkerPool> pool_;
48
49 SequencedWorkerPool::SequenceToken token_;
50
51 DISALLOW_COPY_AND_ASSIGN(SequencedTaskRunnerImpl);
52 };
53
54 } // namespace base
55
56 #endif // BASE_THREADING_SEQUENCED_TASK_RUNNER_IMPL_H_
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