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#include "base/task_runner.h"
6
7#include "base/compiler_specific.h"
8#include "base/logging.h"
9#include "base/threading/post_task_and_reply_impl.h"
10
11namespace base {
12
13namespace {
14
15// TODO(akalin): There's only one other implementation of
16// PostTaskAndReplyImpl in WorkerPool.  Investigate whether it'll be
17// possible to merge the two.
18class PostTaskAndReplyTaskRunner : public internal::PostTaskAndReplyImpl {
19 public:
20  explicit PostTaskAndReplyTaskRunner(TaskRunner* destination);
21
22 private:
23  virtual bool PostTask(const tracked_objects::Location& from_here,
24                        const Closure& task) OVERRIDE;
25
26  // Non-owning.
27  TaskRunner* destination_;
28};
29
30PostTaskAndReplyTaskRunner::PostTaskAndReplyTaskRunner(
31    TaskRunner* destination) : destination_(destination) {
32  DCHECK(destination_);
33}
34
35bool PostTaskAndReplyTaskRunner::PostTask(
36    const tracked_objects::Location& from_here,
37    const Closure& task) {
38  return destination_->PostTask(from_here, task);
39}
40
41}  // namespace
42
43bool TaskRunner::PostTask(const tracked_objects::Location& from_here,
44                          const Closure& task) {
45  return PostDelayedTask(from_here, task, base::TimeDelta());
46}
47
48bool TaskRunner::PostTaskAndReply(
49    const tracked_objects::Location& from_here,
50    const Closure& task,
51    const Closure& reply) {
52  return PostTaskAndReplyTaskRunner(this).PostTaskAndReply(
53      from_here, task, reply);
54}
55
56TaskRunner::TaskRunner() {}
57
58TaskRunner::~TaskRunner() {}
59
60void TaskRunner::OnDestruct() const {
61  delete this;
62}
63
64void TaskRunnerTraits::Destruct(const TaskRunner* task_runner) {
65  task_runner->OnDestruct();
66}
67
68}  // namespace base
69