1 /* 2 * Copyright (C) 2007, 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 DatabaseTracker_h 30 #define DatabaseTracker_h 31 32 #if ENABLE(DATABASE) 33 34 #include "PlatformString.h" 35 #include "StringHash.h" 36 #include <wtf/HashMap.h> 37 #include <wtf/HashSet.h> 38 39 #if !PLATFORM(CHROMIUM) 40 #include "DatabaseDetails.h" 41 #include "SQLiteDatabase.h" 42 #include <wtf/OwnPtr.h> 43 #endif // !PLATFORM(CHROMIUM) 44 45 namespace WebCore { 46 47 class Database; 48 class ScriptExecutionContext; 49 class SecurityOrigin; 50 51 struct SecurityOriginHash; 52 53 #if !PLATFORM(CHROMIUM) 54 class DatabaseTrackerClient; 55 class OriginQuotaManager; 56 57 struct SecurityOriginTraits; 58 #endif // !PLATFORM(CHROMIUM) 59 60 class DatabaseTracker : public Noncopyable { 61 public: 62 static DatabaseTracker& tracker(); 63 // FIXME: Due to workers having multiple threads in a single process sharing 64 // a DatabaseTracker, this singleton will have to be synchronized or moved 65 // to TLS. 66 67 bool canEstablishDatabase(ScriptExecutionContext*, const String& name, const String& displayName, unsigned long estimatedSize); 68 void setDatabaseDetails(SecurityOrigin*, const String& name, const String& displayName, unsigned long estimatedSize); 69 String fullPathForDatabase(SecurityOrigin*, const String& name, bool createIfDoesNotExist = true); 70 71 void addOpenDatabase(Database*); 72 void removeOpenDatabase(Database*); 73 void getOpenDatabases(SecurityOrigin* origin, const String& name, HashSet<RefPtr<Database> >* databases); 74 75 unsigned long long getMaxSizeForDatabase(const Database*); 76 77 private: 78 DatabaseTracker(); 79 80 typedef HashSet<Database*> DatabaseSet; 81 typedef HashMap<String, DatabaseSet*> DatabaseNameMap; 82 typedef HashMap<RefPtr<SecurityOrigin>, DatabaseNameMap*, SecurityOriginHash> DatabaseOriginMap; 83 84 Mutex m_openDatabaseMapGuard; 85 mutable OwnPtr<DatabaseOriginMap> m_openDatabaseMap; 86 87 #if !PLATFORM(CHROMIUM) 88 public: 89 void setDatabaseDirectoryPath(const String&); 90 const String& databaseDirectoryPath() const; 91 92 void origins(Vector<RefPtr<SecurityOrigin> >& result); 93 bool databaseNamesForOrigin(SecurityOrigin*, Vector<String>& result); 94 95 DatabaseDetails detailsForNameAndOrigin(const String&, SecurityOrigin*); 96 97 unsigned long long usageForDatabase(const String&, SecurityOrigin*); 98 unsigned long long usageForOrigin(SecurityOrigin*); 99 unsigned long long quotaForOrigin(SecurityOrigin*); 100 void setQuota(SecurityOrigin*, unsigned long long); 101 102 void deleteAllDatabases(); 103 void deleteOrigin(SecurityOrigin*); 104 void deleteDatabase(SecurityOrigin*, const String& name); 105 106 void setClient(DatabaseTrackerClient*); 107 108 // From a secondary thread, must be thread safe with its data 109 void scheduleNotifyDatabaseChanged(SecurityOrigin*, const String& name); 110 111 OriginQuotaManager& originQuotaManager(); 112 113 114 bool hasEntryForOrigin(SecurityOrigin*); 115 116 private: 117 String trackerDatabasePath() const; 118 void openTrackerDatabase(bool createIfDoesNotExist); 119 120 String originPath(SecurityOrigin*) const; 121 122 bool hasEntryForDatabase(SecurityOrigin*, const String& databaseIdentifier); 123 124 bool addDatabase(SecurityOrigin*, const String& name, const String& path); 125 void populateOrigins(); 126 127 bool deleteDatabaseFile(SecurityOrigin*, const String& name); 128 129 SQLiteDatabase m_database; 130 131 typedef HashMap<RefPtr<SecurityOrigin>, unsigned long long, SecurityOriginHash> QuotaMap; 132 Mutex m_quotaMapGuard; 133 mutable OwnPtr<QuotaMap> m_quotaMap; 134 135 OwnPtr<OriginQuotaManager> m_quotaManager; 136 137 String m_databaseDirectoryPath; 138 139 DatabaseTrackerClient* m_client; 140 141 std::pair<SecurityOrigin*, DatabaseDetails>* m_proposedDatabase; 142 143 #ifndef NDEBUG 144 ThreadIdentifier m_thread; 145 #endif 146 147 static void scheduleForNotification(); 148 static void notifyDatabasesChanged(void*); 149 #endif // !PLATFORM(CHROMIUM) 150 }; 151 152 } // namespace WebCore 153 154 #endif // ENABLE(DATABASE) 155 #endif // DatabaseTracker_h 156
