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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 #include "storage/browser/blob/shareable_file_reference.h" | 5 #include "storage/browser/blob/shareable_file_reference.h" |
6 | 6 |
7 #include <map> | 7 #include <map> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/lazy_instance.h" | 10 #include "base/lazy_instance.h" |
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48 void Erase(key_type key) { | 48 void Erase(key_type key) { |
49 DCHECK(CalledOnValidThread()); | 49 DCHECK(CalledOnValidThread()); |
50 file_map_.erase(key); | 50 file_map_.erase(key); |
51 } | 51 } |
52 | 52 |
53 private: | 53 private: |
54 FileMap file_map_; | 54 FileMap file_map_; |
55 DISALLOW_COPY_AND_ASSIGN(ShareableFileMap); | 55 DISALLOW_COPY_AND_ASSIGN(ShareableFileMap); |
56 }; | 56 }; |
57 | 57 |
58 base::LazyInstance<ShareableFileMap> g_file_map = LAZY_INSTANCE_INITIALIZER; | 58 base::LazyInstance<ShareableFileMap>::DestructorAtExit g_file_map = |
| 59 LAZY_INSTANCE_INITIALIZER; |
59 | 60 |
60 } // namespace | 61 } // namespace |
61 | 62 |
62 // static | 63 // static |
63 scoped_refptr<ShareableFileReference> ShareableFileReference::Get( | 64 scoped_refptr<ShareableFileReference> ShareableFileReference::Get( |
64 const base::FilePath& path) { | 65 const base::FilePath& path) { |
65 ShareableFileMap::iterator found = g_file_map.Get().Find(path); | 66 ShareableFileMap::iterator found = g_file_map.Get().Find(path); |
66 ShareableFileReference* reference = | 67 ShareableFileReference* reference = |
67 (found == g_file_map.Get().End()) ? NULL : found->second; | 68 (found == g_file_map.Get().End()) ? NULL : found->second; |
68 return scoped_refptr<ShareableFileReference>(reference); | 69 return scoped_refptr<ShareableFileReference>(reference); |
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113 : scoped_file_(std::move(scoped_file)) { | 114 : scoped_file_(std::move(scoped_file)) { |
114 DCHECK(g_file_map.Get().Find(path())->second == NULL); | 115 DCHECK(g_file_map.Get().Find(path())->second == NULL); |
115 } | 116 } |
116 | 117 |
117 ShareableFileReference::~ShareableFileReference() { | 118 ShareableFileReference::~ShareableFileReference() { |
118 DCHECK(g_file_map.Get().Find(path())->second == this); | 119 DCHECK(g_file_map.Get().Find(path())->second == this); |
119 g_file_map.Get().Erase(path()); | 120 g_file_map.Get().Erase(path()); |
120 } | 121 } |
121 | 122 |
122 } // namespace storage | 123 } // namespace storage |
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