class salhelper::ReferenceObject.

1 files changed, 156 insertions, 0 deletions

diff --git a/salhelper/inc/salhelper/refobj.hxx b/salhelper/inc/salhelper/refobj.hxx
new file mode 100644
index 000000000000..4633c565a330
--- /dev/null
+++ b/salhelper/inc/salhelper/refobj.hxx
@@ -0,0 +1,156 @@
+/*************************************************************************
+ *
+ *  $RCSfile: refobj.hxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: mhu $ $Date: 2001-05-14 11:50:46 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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 for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef _SALHELPER_REFOBJ_HXX_
+#define _SALHELPER_REFOBJ_HXX_
+
+#ifndef _SAL_TYPES_H_
+#include <sal/types.h>
+#endif
+
+#ifndef _RTL_ALLOC_H_
+#include <rtl/alloc.h>
+#endif
+#ifndef _RTL_REF_HXX_
+#include <rtl/ref.hxx>
+#endif
+
+#ifndef _OSL_DIAGNOSE_H_
+#include <osl/diagnose.h>
+#endif
+#ifndef _OSL_INTERLCK_H_
+#include <osl/interlck.h>
+#endif
+
+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_ */