1 files changed, 172 insertions, 0 deletions
diff --git a/cppuhelper/inc/cppuhelper/weak.hxx b/cppuhelper/inc/cppuhelper/weak.hxx
new file mode 100644
index 000000000000..701b8f102f91
--- /dev/null
+++ b/cppuhelper/inc/cppuhelper/weak.hxx
@@ -0,0 +1,172 @@
+/*************************************************************************
+ *
+ * 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 _CPPUHELPER_WEAK_HXX_
+#define _CPPUHELPER_WEAK_HXX_
+
+#include <osl/interlck.h>
+#include <rtl/alloc.h>
+#include <cppuhelper/weakref.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#ifndef _COM_SUN_STAR_UNO_WEAK_HPP_
+#include <com/sun/star/uno/XWeak.hpp>
+#endif
+
+
+namespace cppu
+{
+
+/** @internal */
+class OWeakConnectionPoint;
+
+/** Base class to implement an UNO object supporting weak references, i.e. the object can be held
+    weakly (by a ::com::sun::star::uno::WeakReference).
+    This implementation copes with reference counting.  Upon last release(), the virtual dtor
+    is called.
+
+    @derive
+    Inherit from this class and delegate acquire()/ release() calls.
+*/
+class OWeakObject : public ::com::sun::star::uno::XWeak
+{
+    /** @internal */
+    friend class OWeakConnectionPoint;
+
+protected:
+    /** Virtual dtor.
+
+        @attention
+        Despite the fact that a RuntimeException is allowed to be thrown, you must not throw any
+        exception upon destruction!
+    */
+    virtual ~OWeakObject() SAL_THROW( (::com::sun::star::uno::RuntimeException) );
+
+    /** disposes and resets m_pWeakConnectionPoint
+        @precond
+            m_refCount equals 0
+    */
+    void    disposeWeakConnectionPoint();
+
+    /** reference count.
+
+        @attention
+        Don't modify manually!  Use acquire() and release().
+    */
+    oslInterlockedCount m_refCount;
+
+    /** Container of all weak reference listeners and the connection point from the weak reference.
+        @internal
+    */
+    OWeakConnectionPoint * m_pWeakConnectionPoint;
+
+    /** reserved for future use. do not use.
+        @internal
+    */
+    void * m_pReserved;
+
+public:
+    // these are here to force memory de/allocation to sal lib.
+    /** @internal */
+    inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () )
+        { return ::rtl_allocateMemory( nSize ); }
+    /** @internal */
+    inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () )
+        { ::rtl_freeMemory( pMem ); }
+    /** @internal */
+    inline static void * SAL_CALL operator new( size_t, void * pMem ) SAL_THROW( () )
+        { return pMem; }
+    /** @internal */
+    inline static void SAL_CALL operator delete( void *, void * ) SAL_THROW( () )
+        {}
+
+#ifdef _MSC_VER
+    /** Default Constructor.  Sets the reference count to zero.
+        Accidentally occurs in msvc mapfile = > had to be outlined.
+    */
+    OWeakObject() SAL_THROW( () );
+#else
+    /** Default Constructor.  Sets the reference count to zero.
+    */
+    inline OWeakObject() SAL_THROW( () )
+        : m_refCount( 0 )
+        , m_pWeakConnectionPoint( 0 )
+        {}
+#endif
+    /** Dummy copy constructor.  Set the reference count to zero.
+
+        @param rObj dummy param
+    */
+    inline OWeakObject( const OWeakObject & ) SAL_THROW( () )
+        : com::sun::star::uno::XWeak()
+        , m_refCount( 0 )
+        , m_pWeakConnectionPoint( 0 )
+        {}
+    /** Dummy assignment operator. Does not affect reference count.
+
+        @return this OWeakObject
+    */
+    inline OWeakObject & SAL_CALL operator = ( const OWeakObject &)
+        SAL_THROW( () )
+        { return *this; }
+
+    /** Basic queryInterface() implementation supporting ::com::sun::star::uno::XWeak and
+        ::com::sun::star::uno::XInterface.
+
+        @param rType demanded type
+        @return demanded type or empty any
+    */
+    virtual ::com::sun::star::uno::Any SAL_CALL queryInterface(
+        const ::com::sun::star::uno::Type & rType )
+        throw (::com::sun::star::uno::RuntimeException);
+    /** increasing m_refCount
+    */
+    virtual void SAL_CALL acquire()
+        throw ();
+    /** decreasing m_refCount
+    */
+    virtual void SAL_CALL release()
+        throw ();
+
+    /** XWeak::queryAdapter() implementation
+
+        @return a ::com::sun::star::uno::XAdapter reference
+    */
+    virtual ::com::sun::star::uno::Reference< ::com::sun::star::uno::XAdapter > SAL_CALL queryAdapter()
+        throw (::com::sun::star::uno::RuntimeException);
+
+    /** Cast operator to XInterface reference.
+
+        @return XInterface reference
+    */
+    inline SAL_CALL operator ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > () SAL_THROW( () )
+        { return this; }
+};
+
+}
+
+#endif
+
+