1/*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef IDBPendingTransactionMonitor_h
27#define IDBPendingTransactionMonitor_h
28
29#if ENABLE(INDEXED_DATABASE)
30
31#include <wtf/Noncopyable.h>
32#include <wtf/Vector.h>
33
34namespace WebCore {
35
36class IDBTransaction;
37
38// This class keeps track of the transactions created during the current
39// Javascript execution context. Transactions have an internal |active| flag
40// which is set to true on creation, but must be set to false when control
41// returns to the event loop.
42
43class IDBPendingTransactionMonitor {
44    WTF_MAKE_NONCOPYABLE(IDBPendingTransactionMonitor);
45public:
46    static void addNewTransaction(PassRefPtr<IDBTransaction>);
47    static void deactivateNewTransactions();
48
49private:
50    IDBPendingTransactionMonitor();
51};
52
53} // namespace WebCore
54
55#endif // ENABLE(INDEXED_DATABASE)
56
57#endif // IDBPendingTransactionMonitor_h
58