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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 // Illustrates how to use worker threads that issue completion callbacks | 5 // Illustrates how to use worker threads that issue completion callbacks |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/location.h" | 8 #include "base/location.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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105 ExampleEmployer::~ExampleEmployer() { | 105 ExampleEmployer::~ExampleEmployer() { |
106 } | 106 } |
107 | 107 |
108 bool ExampleEmployer::DoSomething(const CompletionCallback& callback) { | 108 bool ExampleEmployer::DoSomething(const CompletionCallback& callback) { |
109 DCHECK(!request_.get()) << "already in use"; | 109 DCHECK(!request_.get()) << "already in use"; |
110 | 110 |
111 request_ = new ExampleWorker(this, callback); | 111 request_ = new ExampleWorker(this, callback); |
112 | 112 |
113 // Dispatch to worker thread... | 113 // Dispatch to worker thread... |
114 if (!base::WorkerPool::PostTask( | 114 if (!base::WorkerPool::PostTask( |
115 FROM_HERE, | 115 FROM_HERE, base::Bind(&ExampleWorker::DoWork, request_), true)) { |
116 base::Bind(&ExampleWorker::DoWork, request_.get()), | |
117 true)) { | |
118 NOTREACHED(); | 116 NOTREACHED(); |
119 request_ = NULL; | 117 request_ = NULL; |
120 return false; | 118 return false; |
121 } | 119 } |
122 | 120 |
123 return true; | 121 return true; |
124 } | 122 } |
125 | 123 |
126 } // namespace | 124 } // namespace |
127 | 125 |
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147 EXPECT_TRUE(queued); | 145 EXPECT_TRUE(queued); |
148 | 146 |
149 EXPECT_FALSE(did_check_result); | 147 EXPECT_FALSE(did_check_result); |
150 closure.WaitForResult(); | 148 closure.WaitForResult(); |
151 EXPECT_TRUE(did_check_result); | 149 EXPECT_TRUE(did_check_result); |
152 } | 150 } |
153 | 151 |
154 // TODO: test deleting ExampleEmployer while work outstanding | 152 // TODO: test deleting ExampleEmployer while work outstanding |
155 | 153 |
156 } // namespace net | 154 } // namespace net |
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