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+/*************************************************************************
+ *
+ * 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_ */