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Diffstat (limited to 'salhelper/inc/salhelper/refobj.hxx')
-rw-r--r-- | salhelper/inc/salhelper/refobj.hxx | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/salhelper/inc/salhelper/refobj.hxx b/salhelper/inc/salhelper/refobj.hxx new file mode 100644 index 000000000000..a1851eb84259 --- /dev/null +++ b/salhelper/inc/salhelper/refobj.hxx @@ -0,0 +1,110 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _SALHELPER_REFOBJ_HXX_ +#define _SALHELPER_REFOBJ_HXX_ + +#include <sal/types.h> +#include <rtl/alloc.h> +#include <rtl/ref.hxx> +#include <osl/diagnose.h> +#include <osl/interlck.h> + +namespace salhelper +{ + +//---------------------------------------------------------------------------- + +class ReferenceObject : public rtl::IReference +{ + /** Representation. + */ + oslInterlockedCount m_nReferenceCount; + + /** Not implemented. + */ + ReferenceObject (const ReferenceObject&); + ReferenceObject& operator= (const ReferenceObject&); + +public: + /** Allocation. + */ + static void* operator new (size_t n) SAL_THROW(()) + { + return ::rtl_allocateMemory (n); + } + static void operator delete (void* p) SAL_THROW(()) + { + ::rtl_freeMemory (p); + } + static void* operator new (size_t, void* p) SAL_THROW(()) + { + return (p); + } + static void operator delete (void*, void*) SAL_THROW(()) + {} + +public: + /** Construction. + */ + inline ReferenceObject() SAL_THROW(()) : m_nReferenceCount (0) + {} + + + /** IReference. + */ + virtual oslInterlockedCount SAL_CALL acquire() SAL_THROW(()) + { + return ::osl_incrementInterlockedCount (&m_nReferenceCount); + } + + virtual oslInterlockedCount SAL_CALL release() SAL_THROW(()) + { + oslInterlockedCount result; + result = ::osl_decrementInterlockedCount (&m_nReferenceCount); + if (result == 0) + { + // Last reference released. + delete this; + } + return (result); + } + +protected: + /** Destruction. + */ + virtual ~ReferenceObject() SAL_THROW(()) + { + OSL_ASSERT(m_nReferenceCount == 0); + } +}; + +//---------------------------------------------------------------------------- + +} // namespace salhelper + +#endif /* !_SALHELPER_REFOBJ_HXX_ */ |