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26 #ifndef StorageAreaSync_h
27 #define StorageAreaSync_h
29 #if ENABLE(DOM_STORAGE)
31 #include "PlatformString.h"
32 #include "SQLiteDatabase.h"
33 #include "StringHash.h"
35 #include <wtf/HashMap.h>
41 class StorageSyncManager;
43 class StorageAreaSync : public RefCounted<StorageAreaSync> {
45 static PassRefPtr<StorageAreaSync> create(PassRefPtr<StorageSyncManager> storageSyncManager, PassRefPtr<StorageArea> storageArea);
47 void scheduleFinalSync();
48 void blockUntilImportComplete() const;
50 void scheduleItemForSync(const String& key, const String& value);
54 friend class RefCounted<StorageAreaSync>;
57 StorageAreaSync(PassRefPtr<StorageSyncManager> storageSyncManager, PassRefPtr<StorageArea> storageArea);
59 void dispatchStorageEvent(const String& key, const String& oldValue, const String& newValue, Frame* sourceFrame);
61 Timer<StorageAreaSync> m_syncTimer;
62 HashMap<String, String> m_changedItems;
65 bool m_finalSyncScheduled;
67 RefPtr<StorageArea> m_storageArea;
68 RefPtr<StorageSyncManager> m_syncManager;
70 // The database handle will only ever be opened and used on the background thread.
71 SQLiteDatabase m_database;
73 // The following members are subject to thread synchronization issues.
75 // Called from the background thread
80 void syncTimerFired(Timer<StorageAreaSync>*);
81 void sync(bool clearItems, const HashMap<String, String>& items);
84 HashMap<String, String> m_itemsPendingSync;
85 bool m_clearItemsWhileSyncing;
88 mutable Mutex m_importLock;
89 mutable ThreadCondition m_importCondition;
90 mutable bool m_importComplete;
94 } // namespace WebCore
96 #endif // ENABLE(DOM_STORAGE)
98 #endif // StorageAreaSync_h