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diff --git a/comphelper/inc/comphelper/sharedmutex.hxx b/comphelper/inc/comphelper/sharedmutex.hxx
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+++ b/comphelper/inc/comphelper/sharedmutex.hxx
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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 COMPHELPER_SHAREDMUTEX_HXX
+#define COMPHELPER_SHAREDMUTEX_HXX
+
+#include "comphelper/comphelperdllapi.h"
+
+#include <osl/mutex.hxx>
+
+#include <boost/shared_ptr.hpp>
+
+//........................................................................
+namespace comphelper
+{
+//........................................................................
+
+    //============================================================
+    //= SharedMutex
+    //============================================================
+    class COMPHELPER_DLLPUBLIC SharedMutex
+    {
+    public:
+        SharedMutex();
+        SharedMutex( const SharedMutex& );
+        SharedMutex& operator=( const SharedMutex& );
+        ~SharedMutex()
+        {
+        }
+
+        inline ::osl::Mutex& getMutex() { return *m_pMutexImpl; }
+        inline operator ::osl::Mutex& () { return *m_pMutexImpl; }
+
+    private:
+        ::boost::shared_ptr< ::osl::Mutex >  m_pMutexImpl;
+    };
+
+    //============================================================
+    //= SharedMutexBase
+    //============================================================
+    /** sometimes, it's necessary to have an initialized ::osl::Mutex to pass
+        to some ctor call of your base class. In this case, you can't hold the
+        SharedMutex as member, but you need to move it into another base class,
+        which is initialized before the mutex-requiring class is.
+    */
+    class COMPHELPER_DLLPUBLIC SharedMutexBase
+    {
+    protected:
+        SharedMutexBase()
+        {
+        }
+        ~SharedMutexBase()
+        {
+        }
+
+    protected:
+        ::osl::Mutex&   getMutex() const { return m_aMutex; }
+        SharedMutex&    getSharedMutex() const { return m_aMutex; }
+
+    private:
+        mutable SharedMutex m_aMutex;
+    };
+
+//........................................................................
+} // namespace comphelper
+//........................................................................
+
+#endif // COMPHELPER_SHAREDMUTEX_HXX