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26 #ifndef IDBPendingTransactionMonitor_h
27 #define IDBPendingTransactionMonitor_h
29 #include "platform/heap/Handle.h"
30 #include "wtf/Noncopyable.h"
35 class IDBDisposerDispatcher;
39 // This class keeps track of the transactions created during the current
40 // Javascript execution context. Transactions have an internal |active| flag
41 // which is set to true on creation, but must be set to false when control
42 // returns to the event loop.
43 // Also, this class is responsible to call IDBRequest::dispose() before an
44 // IDBRequest object dies, and responsible to call IDBCursor::dispose() before
45 // an IDBCursor object dies.
46 // FIXME: Rename the class name.
47 class IDBPendingTransactionMonitor {
48 WTF_MAKE_NONCOPYABLE(IDBPendingTransactionMonitor);
51 IDBPendingTransactionMonitor();
52 ~IDBPendingTransactionMonitor();
54 void addNewTransaction(IDBTransaction&);
55 void deactivateNewTransactions();
56 void registerRequest(IDBRequest&);
57 // It's ok to call unregisterRequest(*this) inside
58 // IDBRequest::dispose(). But we must not call unregisterRequest() with
59 // an object different from |this| of IDBRequest::dispose().
60 void unregisterRequest(IDBRequest&);
61 void registerCursor(IDBCursor&);
62 // It's ok to call unregisterCursor(*this) inside IDBCursor::dispose(). But
63 // we must not call unregisterCursor() with an object different from |this|
64 // of IDBCursor::dispose().
65 void unregisterCursor(IDBCursor&);
68 PersistentHeapVector<Member<IDBTransaction> > m_transactions;
69 RefPtr<IDBDisposerDispatcher> m_dispatcher;
74 #endif // IDBPendingTransactionMonitor_h