OLD | NEW |
| (Empty) |
1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef APP_WIN_SCOPED_CO_MEM_H_ | |
6 #define APP_WIN_SCOPED_CO_MEM_H_ | |
7 #pragma once | |
8 | |
9 #include <objbase.h> | |
10 | |
11 #include "base/basictypes.h" | |
12 | |
13 namespace app { | |
14 namespace win { | |
15 | |
16 // Simple scoped memory releaser class for COM allocated memory. | |
17 // Example: | |
18 // app::win::ScopedCoMem<ITEMIDLIST> file_item; | |
19 // SHGetSomeInfo(&file_item, ...); | |
20 // ... | |
21 // return; <-- memory released | |
22 template<typename T> | |
23 class ScopedCoMem { | |
24 public: | |
25 explicit ScopedCoMem() : mem_ptr_(NULL) {} | |
26 | |
27 ~ScopedCoMem() { | |
28 if (mem_ptr_) | |
29 CoTaskMemFree(mem_ptr_); | |
30 } | |
31 | |
32 T** operator&() { // NOLINT | |
33 return &mem_ptr_; | |
34 } | |
35 | |
36 operator T*() { | |
37 return mem_ptr_; | |
38 } | |
39 | |
40 private: | |
41 T* mem_ptr_; | |
42 | |
43 DISALLOW_COPY_AND_ASSIGN(ScopedCoMem); | |
44 }; | |
45 | |
46 } // namespace win | |
47 } // namespace app | |
48 | |
49 #endif // APP_WIN_SCOPED_CO_MEM_H_ | |
OLD | NEW |