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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ | 5 #ifndef CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ |
| 6 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ | 6 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ |
| 7 | 7 |
| 8 #include <stdint.h> |
| 9 |
| 8 #include <map> | 10 #include <map> |
| 9 #include <string> | 11 #include <string> |
| 10 | 12 |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/files/file_path.h" | 13 #include "base/files/file_path.h" |
| 13 #include "base/memory/ref_counted.h" | 14 #include "base/memory/ref_counted.h" |
| 14 #include "content/common/content_export.h" | 15 #include "content/common/content_export.h" |
| 15 #include "url/gurl.h" | 16 #include "url/gurl.h" |
| 16 | 17 |
| 17 namespace content { | 18 namespace content { |
| 18 | 19 |
| 19 class DOMStorageArea; | 20 class DOMStorageArea; |
| 20 class DOMStorageTaskRunner; | 21 class DOMStorageTaskRunner; |
| 21 class SessionStorageDatabase; | 22 class SessionStorageDatabase; |
| (...skipping 13 matching lines...) Expand all Loading... |
| 35 PURGE_AGGRESSIVE, | 36 PURGE_AGGRESSIVE, |
| 36 }; | 37 }; |
| 37 | 38 |
| 38 // Constructor for a LocalStorage namespace with id of 0 | 39 // Constructor for a LocalStorage namespace with id of 0 |
| 39 // and an optional backing directory on disk. | 40 // and an optional backing directory on disk. |
| 40 DOMStorageNamespace(const base::FilePath& directory, // may be empty | 41 DOMStorageNamespace(const base::FilePath& directory, // may be empty |
| 41 DOMStorageTaskRunner* task_runner); | 42 DOMStorageTaskRunner* task_runner); |
| 42 | 43 |
| 43 // Constructor for a SessionStorage namespace with a non-zero id and an | 44 // Constructor for a SessionStorage namespace with a non-zero id and an |
| 44 // optional backing on disk via |session_storage_database| (may be NULL). | 45 // optional backing on disk via |session_storage_database| (may be NULL). |
| 45 DOMStorageNamespace(int64 namespace_id, | 46 DOMStorageNamespace(int64_t namespace_id, |
| 46 const std::string& persistent_namespace_id, | 47 const std::string& persistent_namespace_id, |
| 47 SessionStorageDatabase* session_storage_database, | 48 SessionStorageDatabase* session_storage_database, |
| 48 DOMStorageTaskRunner* task_runner); | 49 DOMStorageTaskRunner* task_runner); |
| 49 | 50 |
| 50 int64 namespace_id() const { return namespace_id_; } | 51 int64_t namespace_id() const { return namespace_id_; } |
| 51 const std::string& persistent_namespace_id() const { | 52 const std::string& persistent_namespace_id() const { |
| 52 return persistent_namespace_id_; | 53 return persistent_namespace_id_; |
| 53 } | 54 } |
| 54 | 55 |
| 55 // Returns the storage area for the given origin, | 56 // Returns the storage area for the given origin, |
| 56 // creating instance if needed. Each call to open | 57 // creating instance if needed. Each call to open |
| 57 // must be balanced with a call to CloseStorageArea. | 58 // must be balanced with a call to CloseStorageArea. |
| 58 DOMStorageArea* OpenStorageArea(const GURL& origin); | 59 DOMStorageArea* OpenStorageArea(const GURL& origin); |
| 59 void CloseStorageArea(DOMStorageArea* area); | 60 void CloseStorageArea(DOMStorageArea* area); |
| 60 | 61 |
| 61 // Returns the area for |origin| if it's open, otherwise NULL. | 62 // Returns the area for |origin| if it's open, otherwise NULL. |
| 62 DOMStorageArea* GetOpenStorageArea(const GURL& origin); | 63 DOMStorageArea* GetOpenStorageArea(const GURL& origin); |
| 63 | 64 |
| 64 // Creates a clone of |this| namespace including | 65 // Creates a clone of |this| namespace including |
| 65 // shallow copies of all contained areas. | 66 // shallow copies of all contained areas. |
| 66 // Should only be called for session storage namespaces. | 67 // Should only be called for session storage namespaces. |
| 67 DOMStorageNamespace* Clone(int64 clone_namespace_id, | 68 DOMStorageNamespace* Clone(int64_t clone_namespace_id, |
| 68 const std::string& clone_persistent_namespace_id); | 69 const std::string& clone_persistent_namespace_id); |
| 69 | 70 |
| 70 void DeleteLocalStorageOrigin(const GURL& origin); | 71 void DeleteLocalStorageOrigin(const GURL& origin); |
| 71 void DeleteSessionStorageOrigin(const GURL& origin); | 72 void DeleteSessionStorageOrigin(const GURL& origin); |
| 72 void PurgeMemory(PurgeOption purge); | 73 void PurgeMemory(PurgeOption purge); |
| 73 void Shutdown(); | 74 void Shutdown(); |
| 74 void Flush(); | 75 void Flush(); |
| 75 | 76 |
| 76 unsigned int CountInMemoryAreas() const; | 77 unsigned int CountInMemoryAreas() const; |
| 77 | 78 |
| 78 private: | 79 private: |
| 79 friend class base::RefCountedThreadSafe<DOMStorageNamespace>; | 80 friend class base::RefCountedThreadSafe<DOMStorageNamespace>; |
| 80 | 81 |
| 81 // Struct to hold references to our contained areas and | 82 // Struct to hold references to our contained areas and |
| 82 // to keep track of how many tabs have a given area open. | 83 // to keep track of how many tabs have a given area open. |
| 83 struct AreaHolder { | 84 struct AreaHolder { |
| 84 scoped_refptr<DOMStorageArea> area_; | 85 scoped_refptr<DOMStorageArea> area_; |
| 85 int open_count_; | 86 int open_count_; |
| 86 AreaHolder(); | 87 AreaHolder(); |
| 87 AreaHolder(DOMStorageArea* area, int count); | 88 AreaHolder(DOMStorageArea* area, int count); |
| 88 ~AreaHolder(); | 89 ~AreaHolder(); |
| 89 }; | 90 }; |
| 90 typedef std::map<GURL, AreaHolder> AreaMap; | 91 typedef std::map<GURL, AreaHolder> AreaMap; |
| 91 | 92 |
| 92 ~DOMStorageNamespace(); | 93 ~DOMStorageNamespace(); |
| 93 | 94 |
| 94 // Returns a pointer to the area holder in our map or NULL. | 95 // Returns a pointer to the area holder in our map or NULL. |
| 95 AreaHolder* GetAreaHolder(const GURL& origin); | 96 AreaHolder* GetAreaHolder(const GURL& origin); |
| 96 | 97 |
| 97 int64 namespace_id_; | 98 int64_t namespace_id_; |
| 98 std::string persistent_namespace_id_; | 99 std::string persistent_namespace_id_; |
| 99 base::FilePath directory_; | 100 base::FilePath directory_; |
| 100 AreaMap areas_; | 101 AreaMap areas_; |
| 101 scoped_refptr<DOMStorageTaskRunner> task_runner_; | 102 scoped_refptr<DOMStorageTaskRunner> task_runner_; |
| 102 scoped_refptr<SessionStorageDatabase> session_storage_database_; | 103 scoped_refptr<SessionStorageDatabase> session_storage_database_; |
| 103 }; | 104 }; |
| 104 | 105 |
| 105 } // namespace content | 106 } // namespace content |
| 106 | 107 |
| 107 | 108 |
| 108 #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ | 109 #endif // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_NAMESPACE_H_ |
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