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1 // Copyright (c) 2010 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 APP_WIN_SCOPED_CO_MEM_H_ | 5 #ifndef CHROME_COMMON_SCOPED_CO_MEM_H_ |
6 #define APP_WIN_SCOPED_CO_MEM_H_ | 6 #define CHROME_COMMON_SCOPED_CO_MEM_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <objbase.h> | 9 #include <objbase.h> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 | 12 |
13 namespace app { | 13 namespace chrome { |
14 namespace win { | 14 namespace common { |
15 | 15 |
16 // Simple scoped memory releaser class for COM allocated memory. | 16 // Simple scoped memory releaser class for COM allocated memory. |
17 // Example: | 17 // Example: |
18 // app::win::ScopedCoMem<ITEMIDLIST> file_item; | 18 // base::win::ScopedCoMem<ITEMIDLIST> file_item; |
19 // SHGetSomeInfo(&file_item, ...); | 19 // SHGetSomeInfo(&file_item, ...); |
20 // ... | 20 // ... |
21 // return; <-- memory released | 21 // return; <-- memory released |
22 template<typename T> | 22 template<typename T> |
23 class ScopedCoMem { | 23 class ScopedCoMem { |
24 public: | 24 public: |
25 explicit ScopedCoMem() : mem_ptr_(NULL) {} | 25 explicit ScopedCoMem() : mem_ptr_(NULL) {} |
26 | 26 |
27 ~ScopedCoMem() { | 27 ~ScopedCoMem() { |
28 if (mem_ptr_) | 28 if (mem_ptr_) |
29 CoTaskMemFree(mem_ptr_); | 29 CoTaskMemFree(mem_ptr_); |
30 } | 30 } |
31 | 31 |
32 T** operator&() { // NOLINT | 32 T** operator&() { // NOLINT |
33 return &mem_ptr_; | 33 return &mem_ptr_; |
34 } | 34 } |
35 | 35 |
36 operator T*() { | 36 operator T*() { |
37 return mem_ptr_; | 37 return mem_ptr_; |
38 } | 38 } |
39 | 39 |
40 private: | 40 private: |
41 T* mem_ptr_; | 41 T* mem_ptr_; |
42 | 42 |
43 DISALLOW_COPY_AND_ASSIGN(ScopedCoMem); | 43 DISALLOW_COPY_AND_ASSIGN(ScopedCoMem); |
44 }; | 44 }; |
45 | 45 |
46 } // namespace win | 46 } // namespace common |
47 } // namespace app | 47 } // namespace chrome |
48 | 48 |
49 #endif // APP_WIN_SCOPED_CO_MEM_H_ | 49 #endif // CHROME_COMMON_SCOPED_CO_MEM_H_ |
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