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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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_WIN_SCOPED_HANDLE_H_ | 5 #ifndef BASE_WIN_SCOPED_HANDLE_H_ |
6 #define BASE_WIN_SCOPED_HANDLE_H_ | 6 #define BASE_WIN_SCOPED_HANDLE_H_ |
7 | 7 |
8 #include <windows.h> | 8 #include <windows.h> |
9 | 9 |
10 #include "base/base_export.h" | 10 #include "base/base_export.h" |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/location.h" | 12 #include "base/location.h" |
13 #include "base/logging.h" | 13 #include "base/logging.h" |
14 #include "base/move.h" | 14 #include "base/move.h" |
15 | 15 |
16 // TODO(rvargas): remove this with the rest of the verifier. | 16 // TODO(rvargas): remove this with the rest of the verifier. |
17 #if defined(COMPILER_MSVC) | 17 #if defined(COMPILER_MSVC) |
18 #include <intrin.h> | 18 #include <intrin.h> |
19 #define BASE_WIN_GET_CALLER _ReturnAddress() | 19 #define BASE_WIN_GET_CALLER _ReturnAddress() |
20 #elif defined(COMPILER_GCC) | 20 #elif defined(COMPILER_GCC) |
21 #define BASE_WIN_GET_CALLER __builtin_extract_return_addr(\\ | 21 #define BASE_WIN_GET_CALLER __builtin_extract_return_addr(\\ |
22 __builtin_return_address(0)) | 22 __builtin_return_address(0)) |
23 #endif | 23 #endif |
24 | 24 |
25 namespace base { | 25 namespace base { |
26 namespace win { | 26 namespace win { |
27 | 27 |
28 // Generic wrapper for raw handles that takes care of closing handles | 28 // Generic wrapper for raw handles that takes care of closing handles |
29 // automatically. The class interface follows the style of | 29 // automatically. The class interface follows the style of |
30 // the ScopedStdioHandle class with one addition: | 30 // the ScopedFILE class with one addition: |
31 // - IsValid() method can tolerate multiple invalid handle values such as NULL | 31 // - IsValid() method can tolerate multiple invalid handle values such as NULL |
32 // and INVALID_HANDLE_VALUE (-1) for Win32 handles. | 32 // and INVALID_HANDLE_VALUE (-1) for Win32 handles. |
33 template <class Traits, class Verifier> | 33 template <class Traits, class Verifier> |
34 class GenericScopedHandle { | 34 class GenericScopedHandle { |
35 MOVE_ONLY_TYPE_FOR_CPP_03(GenericScopedHandle, RValue) | 35 MOVE_ONLY_TYPE_FOR_CPP_03(GenericScopedHandle, RValue) |
36 | 36 |
37 public: | 37 public: |
38 typedef typename Traits::Handle Handle; | 38 typedef typename Traits::Handle Handle; |
39 | 39 |
40 GenericScopedHandle() : handle_(Traits::NullHandle()) {} | 40 GenericScopedHandle() : handle_(Traits::NullHandle()) {} |
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165 private: | 165 private: |
166 DISALLOW_IMPLICIT_CONSTRUCTORS(VerifierTraits); | 166 DISALLOW_IMPLICIT_CONSTRUCTORS(VerifierTraits); |
167 }; | 167 }; |
168 | 168 |
169 typedef GenericScopedHandle<HandleTraits, VerifierTraits> ScopedHandle; | 169 typedef GenericScopedHandle<HandleTraits, VerifierTraits> ScopedHandle; |
170 | 170 |
171 } // namespace win | 171 } // namespace win |
172 } // namespace base | 172 } // namespace base |
173 | 173 |
174 #endif // BASE_SCOPED_HANDLE_WIN_H_ | 174 #endif // BASE_SCOPED_HANDLE_WIN_H_ |
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