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26 #ifndef IDBTransactionBackendImpl_h
27 #define IDBTransactionBackendImpl_h
29 #if ENABLE(INDEXED_DATABASE)
31 #include "DOMStringList.h"
32 #include "IDBTransactionBackendInterface.h"
33 #include "IDBTransactionCallbacks.h"
34 #include "SQLiteTransaction.h"
36 #include <wtf/Deque.h>
37 #include <wtf/RefPtr.h>
41 class IDBDatabaseBackendImpl;
43 class IDBTransactionBackendImpl : public IDBTransactionBackendInterface {
45 static PassRefPtr<IDBTransactionBackendImpl> create(DOMStringList* objectStores, unsigned short mode, unsigned long timeout, IDBDatabaseBackendImpl*);
46 virtual ~IDBTransactionBackendImpl();
48 virtual PassRefPtr<IDBObjectStoreBackendInterface> objectStore(const String& name);
49 virtual unsigned short mode() const { return m_mode; }
50 virtual bool scheduleTask(PassOwnPtr<ScriptExecutionContext::Task> task, PassOwnPtr<ScriptExecutionContext::Task> abortTask);
51 virtual void didCompleteTaskEvents();
53 virtual void setCallbacks(IDBTransactionCallbacks* callbacks) { m_callbacks = callbacks; }
58 IDBTransactionBackendImpl(DOMStringList* objectStores, unsigned short mode, unsigned long timeout, IDBDatabaseBackendImpl*);
61 Unused, // Created, but no tasks yet.
62 StartPending, // Enqueued tasks, but SQLite transaction not yet started.
63 Running, // SQLite transaction started but not yet finished.
64 Finished, // Either aborted or committed.
70 void taskTimerFired(Timer<IDBTransactionBackendImpl>*);
71 void taskEventTimerFired(Timer<IDBTransactionBackendImpl>*);
73 RefPtr<DOMStringList> m_objectStoreNames;
74 unsigned short m_mode;
75 unsigned long m_timeout;
78 RefPtr<IDBTransactionCallbacks> m_callbacks;
79 RefPtr<IDBDatabaseBackendImpl> m_database;
81 typedef Deque<OwnPtr<ScriptExecutionContext::Task> > TaskQueue;
82 TaskQueue m_taskQueue;
83 TaskQueue m_abortTaskQueue;
85 OwnPtr<SQLiteTransaction> m_transaction;
87 // FIXME: delete the timer once we have threads instead.
88 Timer<IDBTransactionBackendImpl> m_taskTimer;
89 Timer<IDBTransactionBackendImpl> m_taskEventTimer;
93 } // namespace WebCore
95 #endif // ENABLE(INDEXED_DATABASE)
97 #endif // IDBTransactionBackendImpl_h