UDK 3.2.7 C/C++ API Reference
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 00002 /************************************************************************* 00003 * 00004 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 00005 * 00006 * Copyright 2000, 2010 Oracle and/or its affiliates. 00007 * 00008 * OpenOffice.org - a multi-platform office productivity suite 00009 * 00010 * This file is part of OpenOffice.org. 00011 * 00012 * OpenOffice.org is free software: you can redistribute it and/or modify 00013 * it under the terms of the GNU Lesser General Public License version 3 00014 * only, as published by the Free Software Foundation. 00015 * 00016 * OpenOffice.org is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU Lesser General Public License version 3 for more details 00020 * (a copy is included in the LICENSE file that accompanied this code). 00021 * 00022 * You should have received a copy of the GNU Lesser General Public License 00023 * version 3 along with OpenOffice.org. If not, see 00024 * <http://www.openoffice.org/license.html> 00025 * for a copy of the LGPLv3 License. 00026 * 00027 ************************************************************************/ 00028 00029 #ifndef _SALHELPER_REFOBJ_HXX_ 00030 #define _SALHELPER_REFOBJ_HXX_ 00031 00032 #include <sal/types.h> 00033 #include <rtl/alloc.h> 00034 #include <rtl/ref.hxx> 00035 #include <osl/diagnose.h> 00036 #include <osl/interlck.h> 00037 00038 namespace salhelper 00039 { 00040 00041 //---------------------------------------------------------------------------- 00042 00043 class ReferenceObject : public rtl::IReference 00044 { 00047 oslInterlockedCount m_nReferenceCount; 00048 00051 ReferenceObject (const ReferenceObject&); 00052 ReferenceObject& operator= (const ReferenceObject&); 00053 00054 public: 00057 static void* operator new (size_t n) SAL_THROW(()) 00058 { 00059 return ::rtl_allocateMemory (n); 00060 } 00061 static void operator delete (void* p) SAL_THROW(()) 00062 { 00063 ::rtl_freeMemory (p); 00064 } 00065 static void* operator new (size_t, void* p) SAL_THROW(()) 00066 { 00067 return (p); 00068 } 00069 static void operator delete (void*, void*) SAL_THROW(()) 00070 {} 00071 00072 public: 00075 inline ReferenceObject() SAL_THROW(()) : m_nReferenceCount (0) 00076 {} 00077 00078 00081 virtual oslInterlockedCount SAL_CALL acquire() SAL_THROW(()) 00082 { 00083 return ::osl_incrementInterlockedCount (&m_nReferenceCount); 00084 } 00085 00086 virtual oslInterlockedCount SAL_CALL release() SAL_THROW(()) 00087 { 00088 oslInterlockedCount result; 00089 result = ::osl_decrementInterlockedCount (&m_nReferenceCount); 00090 if (result == 0) 00091 { 00092 // Last reference released. 00093 delete this; 00094 } 00095 return (result); 00096 } 00097 00098 protected: 00101 virtual ~ReferenceObject() SAL_THROW(()) 00102 { 00103 OSL_ASSERT(m_nReferenceCount == 0); 00104 } 00105 }; 00106 00107 //---------------------------------------------------------------------------- 00108 00109 } // namespace salhelper 00110 00111 #endif /* !_SALHELPER_REFOBJ_HXX_ */ 00112 00113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */