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3rdparty/boost_1_81_0/boost/statechart/event.hpp 1.98 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  #ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED
  #define BOOST_STATECHART_EVENT_HPP_INCLUDED
  //////////////////////////////////////////////////////////////////////////////
  // Copyright 2002-2007 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/event_base.hpp>
  #include <boost/statechart/detail/rtti_policy.hpp>
  #include <boost/statechart/detail/memory.hpp>
  
  #include <boost/polymorphic_cast.hpp> // boost::polymorphic_downcast
  
  #include <memory> // std::allocator
  
  
  
  namespace boost
  {
  namespace statechart
  {
  
  
  
  //////////////////////////////////////////////////////////////////////////////
  template< class MostDerived, class Allocator = std::allocator< none > >
  class event : public detail::rtti_policy::rtti_derived_type<
    MostDerived, event_base >
  {
    public:
      //////////////////////////////////////////////////////////////////////////
      // Compiler-generated copy constructor and copy assignment operator are
      // fine
  
      void * operator new( std::size_t size )
      {
        return detail::allocate< MostDerived, Allocator >( size );
      }
  
      void * operator new( std::size_t, void * p )
      {
        return p;
      }
  
      void operator delete( void * pEvent )
      {
        detail::deallocate< MostDerived, Allocator >( pEvent );
      }
  
      void operator delete( void * pEvent, void * p )
      {
      }
  
    protected:
      //////////////////////////////////////////////////////////////////////////
      event() {}
      virtual ~event() {}
  
    private:
      //////////////////////////////////////////////////////////////////////////
      virtual intrusive_ptr< const event_base > clone() const
      {
        return intrusive_ptr< const event_base >( new MostDerived(
          *polymorphic_downcast< const MostDerived * >( this ) ) );
      }
  };
  
  
  
  } // namespace statechart
  } // namespace boost
  
  
  
  #endif