1/*
2 * Copyright (C) 2008 Apple 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 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef OriginQuotaManager_h
30#define OriginQuotaManager_h
31
32#if ENABLE(DATABASE)
33
34#include "SecurityOriginHash.h"
35#include <wtf/HashMap.h>
36#include <wtf/Threading.h>
37#include <wtf/text/StringHash.h>
38
39namespace WebCore {
40
41class AbstractDatabase;
42class OriginUsageRecord;
43
44class OriginQuotaManager {
45    WTF_MAKE_NONCOPYABLE(OriginQuotaManager); WTF_MAKE_FAST_ALLOCATED;
46public:
47    OriginQuotaManager();
48
49    bool tryLock();
50    void lock();
51    void unlock();
52
53    void trackOrigin(PassRefPtr<SecurityOrigin>);
54    bool tracksOrigin(SecurityOrigin*) const;
55    void addDatabase(SecurityOrigin*, const String& databaseIdentifier, const String& fullPath);
56    void removeDatabase(SecurityOrigin*, const String& databaseIdentifier);
57    void removeOrigin(SecurityOrigin*);
58
59    void markDatabase(AbstractDatabase*); // Mark dirtiness of a specific database.
60    unsigned long long diskUsage(SecurityOrigin*) const;
61
62private:
63    mutable Mutex m_usageRecordGuard;
64#ifndef NDEBUG
65    bool m_usageRecordGuardLocked;
66#endif
67
68    typedef HashMap<RefPtr<SecurityOrigin>, OriginUsageRecord*, SecurityOriginHash> OriginUsageMap;
69    OriginUsageMap m_usageMap;
70};
71
72} // namespace WebCore
73
74#endif // ENABLE(DATABASE)
75
76#endif // OriginQuotaManager_h
77