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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 #include "base/threading/thread.h" | 5 #include "base/threading/thread.h" |
6 | 6 |
7 #include "base/lazy_instance.h" | 7 #include "base/lazy_instance.h" |
8 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" | 8 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" |
9 #include "base/threading/thread_local.h" | 9 #include "base/threading/thread_local.h" |
10 #include "base/synchronization/waitable_event.h" | 10 #include "base/synchronization/waitable_event.h" |
11 | 11 |
12 namespace base { | 12 namespace base { |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
16 // We use this thread-local variable to record whether or not a thread exited | 16 // We use this thread-local variable to record whether or not a thread exited |
17 // because its Stop method was called. This allows us to catch cases where | 17 // because its Stop method was called. This allows us to catch cases where |
18 // MessageLoop::Quit() is called directly, which is unexpected when using a | 18 // MessageLoop::Quit() is called directly, which is unexpected when using a |
19 // Thread to setup and run a MessageLoop. | 19 // Thread to setup and run a MessageLoop. |
20 base::LazyInstance<base::ThreadLocalBoolean> lazy_tls_bool( | 20 base::LazyInstance<base::ThreadLocalBoolean> lazy_tls_bool = |
21 base::LINKER_INITIALIZED); | 21 LAZY_INSTANCE_INITIALIZER; |
22 | 22 |
23 } // namespace | 23 } // namespace |
24 | 24 |
25 // This task is used to trigger the message loop to exit. | 25 // This task is used to trigger the message loop to exit. |
26 class ThreadQuitTask : public Task { | 26 class ThreadQuitTask : public Task { |
27 public: | 27 public: |
28 virtual void Run() { | 28 virtual void Run() { |
29 MessageLoop::current()->Quit(); | 29 MessageLoop::current()->Quit(); |
30 Thread::SetThreadWasQuitProperly(true); | 30 Thread::SetThreadWasQuitProperly(true); |
31 } | 31 } |
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168 // Assert that MessageLoop::Quit was called by ThreadQuitTask. | 168 // Assert that MessageLoop::Quit was called by ThreadQuitTask. |
169 DCHECK(GetThreadWasQuitProperly()); | 169 DCHECK(GetThreadWasQuitProperly()); |
170 | 170 |
171 // We can't receive messages anymore. | 171 // We can't receive messages anymore. |
172 message_loop_ = NULL; | 172 message_loop_ = NULL; |
173 } | 173 } |
174 thread_id_ = kInvalidThreadId; | 174 thread_id_ = kInvalidThreadId; |
175 } | 175 } |
176 | 176 |
177 } // namespace base | 177 } // namespace base |
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