1 /* 2 * Copyright (C) 2009 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef QuotaTracker_h 32 #define QuotaTracker_h 33 34 #if ENABLE(DATABASE) 35 36 #include "PlatformString.h" 37 #include "SecurityOrigin.h" 38 #include <wtf/HashMap.h> 39 #include <wtf/text/StringHash.h> 40 41 namespace WebCore { 42 43 class QuotaTracker { 44 public: 45 static QuotaTracker& instance(); 46 47 void getDatabaseSizeAndSpaceAvailableToOrigin( 48 const String& originIdentifier, const String& databaseName, 49 unsigned long long* databaseSize, unsigned long long* spaceAvailable); 50 void updateDatabaseSizeAndSpaceAvailableToOrigin( 51 const String& originIdentifier, const String& databaseName, 52 unsigned long long databaseSize, unsigned long long spaceAvailable); 53 54 private: QuotaTracker()55 QuotaTracker() { } 56 57 typedef HashMap<String, unsigned long long> SizeMap; 58 SizeMap m_spaceAvailableToOrigins; 59 HashMap<String, SizeMap> m_databaseSizes; 60 Mutex m_dataGuard; 61 }; 62 63 } 64 65 #endif // ENABLE(DATABASE) 66 67 #endif // QuotaTracker_h 68