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 #ifndef OriginUsageRecord_h 29 #define OriginUsageRecord_h 30 31 #include "PlatformString.h" 32 #include "StringHash.h" 33 34 #include <wtf/HashMap.h> 35 #include <wtf/HashSet.h> 36 37 namespace WebCore { 38 39 // Objects of this class can be used from multiple threads with external synchronization. 40 // String arguments are also supposed to be deeply copied by the caller when necessary. 41 class OriginUsageRecord { 42 public: 43 OriginUsageRecord(); 44 45 void addDatabase(const String& identifier, const String& fullPath); 46 void removeDatabase(const String& identifier); 47 void markDatabase(const String& identifier); // Size may have changed, and will need to be recalculated. 48 unsigned long long diskUsage(); 49 50 private: 51 struct DatabaseEntry { DatabaseEntryDatabaseEntry52 DatabaseEntry() { } DatabaseEntryDatabaseEntry53 DatabaseEntry(const String& filename) : filename(filename) { } DatabaseEntryDatabaseEntry54 DatabaseEntry(const String& filename, unsigned long long size) : filename(filename), size(size) { } 55 String filename; 56 unsigned long long size; // This member remains uninitialized until disk usage is calculated. 57 }; 58 HashMap<String, DatabaseEntry> m_databaseMap; 59 HashSet<String> m_unknownSet; 60 61 unsigned long long m_cachedDiskUsage; 62 bool m_cachedDiskUsageIsValid; 63 }; 64 65 } // namespace WebCore 66 67 #endif 68