Chris@16: // Boost.Signals2 library
Chris@16: 
Chris@16: // Copyright Frank Mori Hess 2007-2008.
Chris@16: // Use, modification and
Chris@16: // distribution is subject to the Boost Software License, Version
Chris@16: // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: // For more information, see http://www.boost.org
Chris@16: 
Chris@16: #ifndef BOOST_SIGNALS2_SIGNAL_BASE_HPP
Chris@16: #define BOOST_SIGNALS2_SIGNAL_BASE_HPP
Chris@16: 
Chris@16: #include <boost/noncopyable.hpp>
Chris@16: #include <boost/shared_ptr.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16:   namespace signals2 {
Chris@16:     class slot_base;
Chris@16: 
Chris@16:     class signal_base : public noncopyable
Chris@16:     {
Chris@16:     public:
Chris@16:       friend class slot_base;
Chris@16: 
Chris@16:       virtual ~signal_base() {}
Chris@16:     protected:
Chris@16:       virtual shared_ptr<void> lock_pimpl() const = 0;
Chris@16:     };
Chris@16:   } // end namespace signals2
Chris@16: } // end namespace boost
Chris@16: 
Chris@16: #endif // BOOST_SIGNALS2_SIGNAL_BASE_HPP