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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_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ | 5 #ifndef WEBKIT_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ |
6 #define WEBKIT_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ | 6 #define WEBKIT_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_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/memory/weak_ptr.h" | 11 #include "base/memory/weak_ptr.h" |
12 #include "base/nullable_string16.h" | 12 #include "base/strings/nullable_string16.h" |
13 #include "googleurl/src/gurl.h" | 13 #include "googleurl/src/gurl.h" |
14 #include "webkit/storage/webkit_storage_export.h" | 14 #include "webkit/storage/webkit_storage_export.h" |
15 | 15 |
16 namespace dom_storage { | 16 namespace dom_storage { |
17 | 17 |
18 class DomStorageMap; | 18 class DomStorageMap; |
19 class DomStorageProxy; | 19 class DomStorageProxy; |
20 | 20 |
21 // Unlike the other classes in the dom_storage library, this one is intended | 21 // Unlike the other classes in the dom_storage library, this one is intended |
22 // for use in renderer processes. It maintains a complete cache of the | 22 // for use in renderer processes. It maintains a complete cache of the |
23 // origin's Map of key/value pairs for fast access. The cache is primed on | 23 // origin's Map of key/value pairs for fast access. The cache is primed on |
24 // first access and changes are written to the backend thru the |proxy|. | 24 // first access and changes are written to the backend thru the |proxy|. |
25 // Mutations originating in other processes are applied to the cache via | 25 // Mutations originating in other processes are applied to the cache via |
26 // the ApplyMutation method. | 26 // the ApplyMutation method. |
27 class WEBKIT_STORAGE_EXPORT DomStorageCachedArea : | 27 class WEBKIT_STORAGE_EXPORT DomStorageCachedArea : |
28 public base::RefCounted<DomStorageCachedArea> { | 28 public base::RefCounted<DomStorageCachedArea> { |
29 public: | 29 public: |
30 DomStorageCachedArea(int64 namespace_id, const GURL& origin, | 30 DomStorageCachedArea(int64 namespace_id, const GURL& origin, |
31 DomStorageProxy* proxy); | 31 DomStorageProxy* proxy); |
32 | 32 |
33 int64 namespace_id() const { return namespace_id_; } | 33 int64 namespace_id() const { return namespace_id_; } |
34 const GURL& origin() const { return origin_; } | 34 const GURL& origin() const { return origin_; } |
35 | 35 |
36 unsigned GetLength(int connection_id); | 36 unsigned GetLength(int connection_id); |
37 NullableString16 GetKey(int connection_id, unsigned index); | 37 base::NullableString16 GetKey(int connection_id, unsigned index); |
38 NullableString16 GetItem(int connection_id, const base::string16& key); | 38 base::NullableString16 GetItem(int connection_id, const base::string16& key); |
39 bool SetItem(int connection_id, | 39 bool SetItem(int connection_id, |
40 const base::string16& key, | 40 const base::string16& key, |
41 const base::string16& value, | 41 const base::string16& value, |
42 const GURL& page_url); | 42 const GURL& page_url); |
43 void RemoveItem(int connection_id, const base::string16& key, | 43 void RemoveItem(int connection_id, const base::string16& key, |
44 const GURL& page_url); | 44 const GURL& page_url); |
45 void Clear(int connection_id, const GURL& page_url); | 45 void Clear(int connection_id, const GURL& page_url); |
46 | 46 |
47 void ApplyMutation(const NullableString16& key, | 47 void ApplyMutation(const base::NullableString16& key, |
48 const NullableString16& new_value); | 48 const base::NullableString16& new_value); |
49 | 49 |
50 size_t MemoryBytesUsedByCache() const; | 50 size_t MemoryBytesUsedByCache() const; |
51 | 51 |
52 private: | 52 private: |
53 friend class DomStorageCachedAreaTest; | 53 friend class DomStorageCachedAreaTest; |
54 friend class base::RefCounted<DomStorageCachedArea>; | 54 friend class base::RefCounted<DomStorageCachedArea>; |
55 ~DomStorageCachedArea(); | 55 ~DomStorageCachedArea(); |
56 | 56 |
57 // Primes the cache, loading all values for the area. | 57 // Primes the cache, loading all values for the area. |
58 void Prime(int connection_id); | 58 void Prime(int connection_id); |
(...skipping 24 matching lines...) Expand all Loading... |
83 int64 namespace_id_; | 83 int64 namespace_id_; |
84 GURL origin_; | 84 GURL origin_; |
85 scoped_refptr<DomStorageMap> map_; | 85 scoped_refptr<DomStorageMap> map_; |
86 scoped_refptr<DomStorageProxy> proxy_; | 86 scoped_refptr<DomStorageProxy> proxy_; |
87 base::WeakPtrFactory<DomStorageCachedArea> weak_factory_; | 87 base::WeakPtrFactory<DomStorageCachedArea> weak_factory_; |
88 }; | 88 }; |
89 | 89 |
90 } // namespace dom_storage | 90 } // namespace dom_storage |
91 | 91 |
92 #endif // WEBKIT_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ | 92 #endif // WEBKIT_RENDERER_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ |
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