ucb/workben/cachemap/cachemapobject3.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_UCB_CACHEMAPOBJECT3_HXX
  21 #define INCLUDED_UCB_CACHEMAPOBJECT3_HXX
  22
  23 #include "osl/interlck.h"
  24 #include "osl/mutex.hxx"
  25 #include "rtl/ref.hxx"
  26 #include "sal/types.h"
  27 #include "salhelper/simplereferenceobject.hxx"
  28
  29 #include <map>
  30 #include <memory>
  31
  32 namespace rtl { class OUString; }
  33 namespace ucb { namespace cachemap { class Object3; } }
  34
  35 namespace ucb { namespace cachemap {
  36
  37 class ObjectContainer3: public salhelper::SimpleReferenceObject
  38 {
  39 public:
  40     ObjectContainer3();
  41
  42     virtual ~ObjectContainer3() SAL_THROW(());
  43
  44     rtl::Reference< Object3 > get(OUString const & rKey);
  45
  46 private:
  47     typedef std::map< OUString, Object3 * > Map;
  48
  49     Map m_aMap;
  50     osl::Mutex m_aMutex;
  51
  52     void releaseElement(Object3 * pElement) SAL_THROW(());
  53
  54     friend class Object3; // to access Map, releaseElement()
  55 };
  56
  57 class Object3
  58 {
  59 public:
  60     inline void acquire() SAL_THROW(())
  61     { osl_atomic_increment(&m_nRefCount); }
  62
  63     void release() SAL_THROW(());
  64
  65 private:
  66     rtl::Reference< ObjectContainer3 > m_xContainer;
  67     ObjectContainer3::Map::iterator m_aContainerIt;
  68     oslInterlockedCount m_nRefCount;
  69
  70     inline Object3(rtl::Reference< ObjectContainer3 > const & rContainer);
  71
  72     inline ~Object3() SAL_THROW(());
  73
  74     Object3(Object3 &); // not implemented
  75     void operator =(Object3); // not implemented
  76
  77     friend class ObjectContainer3;
  78         // to access m_aContainerIt, m_nRefCount, Object3(), ~Object3()
  79 #if defined WNT
  80     friend struct std::auto_ptr< Object3 >; // to access ~Object3()
  81         // work around compiler bug...
  82 #else // WNT
  83     friend class std::auto_ptr< Object3 >; // to access ~Object3()
  84 #endif // WNT
  85 };
  86
  87 } }
  88
  89 #endif // INCLUDED_UCB_CACHEMAPOBJECT3_HXX
  90
  91 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */