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
11 namespace base {
12
13 namespace {
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.
18 class PostTaskAndReplyTaskRunner : public internal::PostTaskAndReplyImpl {
19 public:
20 explicit PostTaskAndReplyTaskRunner(TaskRunner* destination);
21
22 private:
23 bool PostTask(const tracked_objects::Location& from_here,
24 const Closure& task) override;
25
26 // Non-owning.
27 TaskRunner* destination_;
28 };
29
PostTaskAndReplyTaskRunner(TaskRunner * destination)30 PostTaskAndReplyTaskRunner::PostTaskAndReplyTaskRunner(
31 TaskRunner* destination) : destination_(destination) {
32 DCHECK(destination_);
33 }
34
PostTask(const tracked_objects::Location & from_here,const Closure & task)35 bool 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
PostTask(const tracked_objects::Location & from_here,const Closure & task)43 bool TaskRunner::PostTask(const tracked_objects::Location& from_here,
44 const Closure& task) {
45 return PostDelayedTask(from_here, task, base::TimeDelta());
46 }
47
PostTaskAndReply(const tracked_objects::Location & from_here,const Closure & task,const Closure & reply)48 bool 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
TaskRunner()56 TaskRunner::TaskRunner() {}
57
~TaskRunner()58 TaskRunner::~TaskRunner() {}
59
OnDestruct() const60 void TaskRunner::OnDestruct() const {
61 delete this;
62 }
63
Destruct(const TaskRunner * task_runner)64 void TaskRunnerTraits::Destruct(const TaskRunner* task_runner) {
65 task_runner->OnDestruct();
66 }
67
68 } // namespace base
69