session.hpp

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//  Copyright (c) 2005-2007 Andre Merzky (andre@merzky.net)
//  Copyright (c) 2005-2009 Hartmut Kaiser
//  Copyright (c) 2007 Ole Weidner (oweidner@cct.lsu.edu)
// 
//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifndef SAGA_SESSION_HPP
#define SAGA_SESSION_HPP

// include stl
#include <list>

// include dependent spec sections
#include <saga/saga/util.hpp>
#include <saga/saga/base.hpp>
#include <saga/saga/object.hpp>

// suppress warnings about dependent classes not being exported from the dll
#if defined(BOOST_MSVC)
#pragma warning(push)
#pragma warning(disable: 4251 4231 4275 4660)
#endif

namespace saga
{
    namespace detail 
    {
        // the default session as singleton, and the no-session singleton
        SAGA_EXPORT session        get_the_session ();
        #define SAGA_DEFAULT_SESSION detail::get_the_session ()
    }

  class SAGA_EXPORT session
    : public saga::object
  {
    protected: 

      TR1::shared_ptr <saga::impl::session> get_impl (void) const;

      friend class  saga::object; // needs to get impl
      friend struct impl::runtime;

    public:
      explicit session(bool default_session = true);

      explicit session(saga::object const& obj);

     ~session (void);

      session &operator= (saga::object const& o);

      void add_context(saga::context const& c);

      void remove_context(saga::context const& c);

      std::vector <saga::context> list_contexts() const;
      
      friend SAGA_EXPORT 
      bool operator== (session const& lhs, session const& rhs);
  };

} // namespace saga

// re-enable warnings about dependent classes not being exported from the dll
#if defined(BOOST_MSVC)
#pragma warning(pop)
#endif

#endif // SAGA_SESSION_HPP

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