OLD | NEW |
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/lazy_instance.h" | 5 #include "base/lazy_instance.h" |
6 | 6 |
7 #include "base/at_exit.h" | 7 #include "base/at_exit.h" |
8 #include "base/atomicops.h" | 8 #include "base/atomicops.h" |
9 #include "base/basictypes.h" | |
10 #include "base/threading/platform_thread.h" | 9 #include "base/threading/platform_thread.h" |
11 | 10 |
12 namespace base { | 11 namespace base { |
13 namespace internal { | 12 namespace internal { |
14 | 13 |
15 // TODO(joth): This function could be shared with Singleton, in place of its | 14 // TODO(joth): This function could be shared with Singleton, in place of its |
16 // WaitForInstance() call. | 15 // WaitForInstance() call. |
17 bool NeedsLazyInstance(subtle::AtomicWord* state) { | 16 bool NeedsLazyInstance(subtle::AtomicWord* state) { |
18 // Try to create the instance, if we're the first, will go from 0 to | 17 // Try to create the instance, if we're the first, will go from 0 to |
19 // kLazyInstanceStateCreating, otherwise we've already been beaten here. | 18 // kLazyInstanceStateCreating, otherwise we've already been beaten here. |
(...skipping 26 matching lines...) Expand all Loading... |
46 // are in NeedsInstance() and Pointer(). | 45 // are in NeedsInstance() and Pointer(). |
47 subtle::Release_Store(state, new_instance); | 46 subtle::Release_Store(state, new_instance); |
48 | 47 |
49 // Make sure that the lazily instantiated object will get destroyed at exit. | 48 // Make sure that the lazily instantiated object will get destroyed at exit. |
50 if (dtor) | 49 if (dtor) |
51 AtExitManager::RegisterCallback(dtor, lazy_instance); | 50 AtExitManager::RegisterCallback(dtor, lazy_instance); |
52 } | 51 } |
53 | 52 |
54 } // namespace internal | 53 } // namespace internal |
55 } // namespace base | 54 } // namespace base |
OLD | NEW |