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       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_COMPHELPER_SHAREDMUTEX_HXX
      21             : #define INCLUDED_COMPHELPER_SHAREDMUTEX_HXX
      22             : 
      23             : #include <comphelper/comphelperdllapi.h>
      24             : #include <osl/mutex.hxx>
      25             : #include <memory>
      26             : 
      27             : namespace comphelper
      28             : {
      29             : 
      30             : 
      31             : 
      32             :     //= SharedMutex
      33             : 
      34             :     class COMPHELPER_DLLPUBLIC SharedMutex
      35             :     {
      36             :     public:
      37             :         SharedMutex();
      38             :         SharedMutex( const SharedMutex& );
      39             :         SharedMutex& operator=( const SharedMutex& );
      40       30058 :         ~SharedMutex()
      41       30058 :         {
      42       30058 :         }
      43             : 
      44             :         inline ::osl::Mutex& getMutex() { return *m_pMutexImpl; }
      45       66575 :         inline operator ::osl::Mutex& () { return *m_pMutexImpl; }
      46             : 
      47             :     private:
      48             :         std::shared_ptr< ::osl::Mutex >  m_pMutexImpl;
      49             :     };
      50             : 
      51             : 
      52             :     //= SharedMutexBase
      53             : 
      54             :     /** sometimes, it's necessary to have an initialized ::osl::Mutex to pass
      55             :         to some ctor call of your base class. In this case, you can't hold the
      56             :         SharedMutex as member, but you need to move it into another base class,
      57             :         which is initialized before the mutex-requiring class is.
      58             :     */
      59             :     class COMPHELPER_DLLPUBLIC SharedMutexBase
      60             :     {
      61             :     protected:
      62          14 :         SharedMutexBase()
      63          14 :         {
      64          14 :         }
      65          12 :         ~SharedMutexBase()
      66          12 :         {
      67          12 :         }
      68             : 
      69             :     protected:
      70         233 :         ::osl::Mutex&   getMutex() const { return m_aMutex; }
      71           8 :         SharedMutex&    getSharedMutex() const { return m_aMutex; }
      72             : 
      73             :     private:
      74             :         mutable SharedMutex m_aMutex;
      75             :     };
      76             : 
      77             : 
      78             : } // namespace comphelper
      79             : 
      80             : 
      81             : #endif // INCLUDED_COMPHELPER_SHAREDMUTEX_HXX
      82             : 
      83             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */