text: /*
   * Copyright (C) 2008 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1.  Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   * 2.  Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
   *     its contributors may be used to endorse or promote products derived
   *     from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef OriginQuotaManager_h
  #define OriginQuotaManager_h
  
  #if ENABLE(DATABASE)
  
  #include "StringHash.h"
  #include "SecurityOriginHash.h"
  #include <wtf/HashMap.h>
  #include <wtf/Threading.h>
  
  namespace WebCore {
  
  class Database;
  class OriginUsageRecord;
  
  class OriginQuotaManager : public Noncopyable {
  public:
      OriginQuotaManager();
  
      bool tryLock();
      void lock();
      void unlock();
  
      void trackOrigin(PassRefPtr<SecurityOrigin>);
      bool tracksOrigin(SecurityOrigin*) const;
      void addDatabase(SecurityOrigin*, const String& databaseIdentifier, const String& fullPath);
      void removeDatabase(SecurityOrigin*, const String& databaseIdentifier);
      void removeOrigin(SecurityOrigin*);
  
      void markDatabase(Database*); // Mark dirtiness of a specific database.
      unsigned long long diskUsage(SecurityOrigin*) const;
  
  private:
      mutable Mutex m_usageRecordGuard;
  #ifndef NDEBUG
      bool m_usageRecordGuardLocked;
  #endif
  
      typedef HashMap<RefPtr<SecurityOrigin>, OriginUsageRecord*, SecurityOriginHash> OriginUsageMap;
      OriginUsageMap m_usageMap;
  };
  
  } // namespace WebCore
  
  #endif // ENABLE(DATABASE)
  
  #endif // OriginQuotaManager_h
  