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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 #ifndef BASE_AT_EXIT_H_ | 5 #ifndef BASE_AT_EXIT_H_ |
6 #define BASE_AT_EXIT_H_ | 6 #define BASE_AT_EXIT_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <stack> | 9 #include <stack> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/lock.h" | 12 #include "base/synchronization/lock.h" |
13 | 13 |
14 namespace base { | 14 namespace base { |
15 | 15 |
16 // This class provides a facility similar to the CRT atexit(), except that | 16 // This class provides a facility similar to the CRT atexit(), except that |
17 // we control when the callbacks are executed. Under Windows for a DLL they | 17 // we control when the callbacks are executed. Under Windows for a DLL they |
18 // happen at a really bad time and under the loader lock. This facility is | 18 // happen at a really bad time and under the loader lock. This facility is |
19 // mostly used by base::Singleton. | 19 // mostly used by base::Singleton. |
20 // | 20 // |
21 // The usage is simple. Early in the main() or WinMain() scope create an | 21 // The usage is simple. Early in the main() or WinMain() scope create an |
22 // AtExitManager object on the stack: | 22 // AtExitManager object on the stack: |
(...skipping 30 matching lines...) Expand all Loading... |
53 explicit AtExitManager(bool shadow); | 53 explicit AtExitManager(bool shadow); |
54 | 54 |
55 private: | 55 private: |
56 struct CallbackAndParam { | 56 struct CallbackAndParam { |
57 CallbackAndParam(AtExitCallbackType func, void* param) | 57 CallbackAndParam(AtExitCallbackType func, void* param) |
58 : func_(func), param_(param) { } | 58 : func_(func), param_(param) { } |
59 AtExitCallbackType func_; | 59 AtExitCallbackType func_; |
60 void* param_; | 60 void* param_; |
61 }; | 61 }; |
62 | 62 |
63 Lock lock_; | 63 base::Lock lock_; |
64 std::stack<CallbackAndParam> stack_; | 64 std::stack<CallbackAndParam> stack_; |
65 AtExitManager* next_manager_; // Stack of managers to allow shadowing. | 65 AtExitManager* next_manager_; // Stack of managers to allow shadowing. |
66 | 66 |
67 DISALLOW_COPY_AND_ASSIGN(AtExitManager); | 67 DISALLOW_COPY_AND_ASSIGN(AtExitManager); |
68 }; | 68 }; |
69 | 69 |
70 #if defined(UNIT_TEST) | 70 #if defined(UNIT_TEST) |
71 class ShadowingAtExitManager : public AtExitManager { | 71 class ShadowingAtExitManager : public AtExitManager { |
72 public: | 72 public: |
73 ShadowingAtExitManager() : AtExitManager(true) {} | 73 ShadowingAtExitManager() : AtExitManager(true) {} |
74 }; | 74 }; |
75 #endif // defined(UNIT_TEST) | 75 #endif // defined(UNIT_TEST) |
76 | 76 |
77 } // namespace base | 77 } // namespace base |
78 | 78 |
79 #endif // BASE_AT_EXIT_H_ | 79 #endif // BASE_AT_EXIT_H_ |
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