2 * Copyright (C) 2011 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
26 #ifndef StorageTracker_h
27 #define StorageTracker_h
29 #if ENABLE(DOM_STORAGE)
31 #include "PlatformString.h"
32 #include "SQLiteDatabase.h"
33 #include <wtf/HashSet.h>
34 #include <wtf/OwnPtr.h>
35 #include <wtf/Vector.h>
36 #include <wtf/text/StringHash.h>
40 class LocalStorageTask;
41 class LocalStorageThread;
43 class StorageTrackerClient;
45 class StorageTracker {
46 WTF_MAKE_NONCOPYABLE(StorageTracker);
47 WTF_MAKE_FAST_ALLOCATED;
49 static void initializeTracker(const String& storagePath, StorageTrackerClient*);
50 static StorageTracker& tracker();
52 void setOriginDetails(const String& originIdentifier, const String& databaseFile);
54 void deleteAllOrigins();
55 void deleteOrigin(SecurityOrigin*);
56 void deleteOrigin(const String& originIdentifier);
57 void origins(Vector<RefPtr<SecurityOrigin> >& result);
58 long long diskUsageForOrigin(SecurityOrigin*);
60 void cancelDeletingOrigin(const String& originIdentifier);
62 void setClient(StorageTrackerClient*);
66 // Sync to disk on background thread.
67 void syncDeleteAllOrigins();
68 void syncDeleteOrigin(const String& originIdentifier);
69 void syncSetOriginDetails(const String& originIdentifier, const String& databaseFile);
70 void syncImportOriginIdentifiers();
71 void syncFileSystemAndTrackerDatabase();
73 void syncLocalStorage();
76 StorageTracker(const String& storagePath);
77 static void scheduleTask(void*);
79 void internalInitialize();
81 String trackerDatabasePath();
82 void openTrackerDatabase(bool createIfDoesNotExist);
84 void importOriginIdentifiers();
86 void deleteTrackerFiles();
87 String databasePathForOrigin(const String& originIdentifier);
89 bool canDeleteOrigin(const String& originIdentifier);
90 void willDeleteOrigin(const String& originIdentifier);
91 void willDeleteAllOrigins();
92 static void deleteOriginOnMainThread(void* originIdentifier);
94 void originFilePaths(Vector<String>& paths);
96 void setIsActive(bool);
98 // Guard for m_database, m_storageDirectoryPath and static Strings in syncFileSystemAndTrackerDatabase().
99 Mutex m_databaseGuard;
100 SQLiteDatabase m_database;
101 String m_storageDirectoryPath;
104 StorageTrackerClient* m_client;
106 // Guard for m_originSet and m_originsBeingDeleted.
107 Mutex m_originSetGuard;
108 typedef HashSet<String> OriginSet;
109 OriginSet m_originSet;
110 OriginSet m_originsBeingDeleted;
112 OwnPtr<LocalStorageThread> m_thread;
115 bool m_needsInitialization;
118 } // namespace WebCore
120 #endif // ENABLE(DOM_STORAGE)
122 #endif // StorageTracker_h