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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 WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ | 5 #ifndef WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ |
6 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ | 6 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 | 9 |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/nullable_string16.h" | 11 #include "base/nullable_string16.h" |
12 #include "base/string16.h" | 12 #include "base/string16.h" |
| 13 #include "webkit/dom_storage/dom_storage_export.h" |
13 #include "webkit/dom_storage/dom_storage_types.h" | 14 #include "webkit/dom_storage/dom_storage_types.h" |
14 | 15 |
15 namespace dom_storage { | 16 namespace dom_storage { |
16 | 17 |
17 // A wrapper around a std::map that adds refcounting and | 18 // A wrapper around a std::map that adds refcounting and |
18 // tracks the size in bytes of the keys/values, enforcing a quota. | 19 // tracks the size in bytes of the keys/values, enforcing a quota. |
19 // See class comments for DomStorageContext for a larger overview. | 20 // See class comments for DomStorageContext for a larger overview. |
20 class DomStorageMap | 21 class DOM_STORAGE_EXPORT DomStorageMap |
21 : public base::RefCountedThreadSafe<DomStorageMap> { | 22 : public base::RefCountedThreadSafe<DomStorageMap> { |
22 public: | 23 public: |
23 explicit DomStorageMap(size_t quota); | 24 explicit DomStorageMap(size_t quota); |
24 | 25 |
25 unsigned Length() const; | 26 unsigned Length() const; |
26 NullableString16 Key(unsigned index); | 27 NullableString16 Key(unsigned index); |
27 NullableString16 GetItem(const string16& key) const; | 28 NullableString16 GetItem(const string16& key) const; |
28 bool SetItem(const string16& key, const string16& value, | 29 bool SetItem(const string16& key, const string16& value, |
29 NullableString16* old_value); | 30 NullableString16* old_value); |
30 bool RemoveItem(const string16& key, string16* old_value); | 31 bool RemoveItem(const string16& key, string16* old_value); |
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54 ValuesMap values_; | 55 ValuesMap values_; |
55 ValuesMap::const_iterator key_iterator_; | 56 ValuesMap::const_iterator key_iterator_; |
56 unsigned last_key_index_; | 57 unsigned last_key_index_; |
57 size_t bytes_used_; | 58 size_t bytes_used_; |
58 size_t quota_; | 59 size_t quota_; |
59 }; | 60 }; |
60 | 61 |
61 } // namespace dom_storage | 62 } // namespace dom_storage |
62 | 63 |
63 #endif // WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ | 64 #endif // WEBKIT_DOM_STORAGE_DOM_STORAGE_MAP_H_ |
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