comparison DEPENDENCIES/generic/include/boost/statechart/event_base.hpp @ 16:2665513ce2d3

Add boost headers

+#ifndef BOOST_STATECHART_EVENT_BASE_HPP_INCLUDED
+#define BOOST_STATECHART_EVENT_BASE_HPP_INCLUDED
+//////////////////////////////////////////////////////////////////////////////
+// Copyright 2002-2006 Andreas Huber Doenni
+// Distributed under the Boost Software License, Version 1.0. (See accompany-
+// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//////////////////////////////////////////////////////////////////////////////
+
+
+
+#include <boost/statechart/detail/rtti_policy.hpp>
+#include <boost/statechart/detail/counted_base.hpp>
+
+#include <boost/assert.hpp>
+#include <boost/intrusive_ptr.hpp>
+#include <boost/config.hpp>
+
+
+
+namespace boost
+{
+namespace statechart
+{
+namespace detail
+{
+
+
+
+// This helper is necessary because there doesn't seem to be consensus among
+// compilers on how a friend declaration for a function in another namespace
+// has to look like.
+class delete_helper
+{
+  public:
+    template< class T >
+    static void delete_object( const T * pObject )
+    {
+      delete pObject;
+    }
+};
+
+
+
+} // namespace detail
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+class event_base : public detail::rtti_policy::rtti_base_type<
+  detail::counted_base<> >
+{
+  typedef detail::rtti_policy::rtti_base_type<
+    detail::counted_base<> > base_type;
+  public:
+    //////////////////////////////////////////////////////////////////////////
+    intrusive_ptr< const event_base > intrusive_from_this() const;
+
+  protected:
+    //////////////////////////////////////////////////////////////////////////
+    event_base( detail::rtti_policy::id_provider_type idProvider ) :
+      base_type( idProvider )
+    {
+    }
+
+    virtual ~event_base() {}
+
+  private:
+    //////////////////////////////////////////////////////////////////////////
+    virtual intrusive_ptr< const event_base > clone() const = 0;
+
+    friend class detail::delete_helper;
+};
+
+
+
+#ifdef BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+} // namespace statechart
+#endif
+
+
+
+inline void intrusive_ptr_add_ref( const ::boost::statechart::event_base * pBase )
+{
+  pBase->add_ref();
+}
+
+inline void intrusive_ptr_release( const ::boost::statechart::event_base * pBase )
+{
+  if ( pBase->release() )
+  {
+    ::boost::statechart::detail::delete_helper::delete_object( pBase );
+  }
+}
+
+
+
+#ifndef BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+} // namespace statechart
+#endif
+namespace statechart
+{
+
+
+
+// We're implementing this here so that GCC3.4.2 can find
+// intrusive_ptr_add_ref, which is indirectly called from the intrusive_ptr
+// ctor.
+inline intrusive_ptr< const event_base > event_base::intrusive_from_this() const
+{
+  if ( base_type::ref_counted() )
+  {
+    return intrusive_ptr< const event_base >( this );
+  }
+  else
+  {
+    return clone();
+  }
+}
+
+
+
+} // namespace statechart
+} // namespace boost
+
+
+
+#endif