0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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#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
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