Line data    Source code

       1             : // Boost.Signals2 library
       2             : 
       3             : // Copyright Frank Mori Hess 2007-2008.
       4             : // Use, modification and
       5             : // distribution is subject to the Boost Software License, Version
       6             : // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
       7             : // http://www.boost.org/LICENSE_1_0.txt)
       8             : 
       9             : // For more information, see http://www.boost.org
      10             : 
      11             : #ifndef BOOST_SIGNALS2_SIGNAL_BASE_HPP
      12             : #define BOOST_SIGNALS2_SIGNAL_BASE_HPP
      13             : 
      14             : #include <boost/core/noncopyable.hpp>
      15             : #include <boost/shared_ptr.hpp>
      16             : 
      17             : namespace boost {
      18             :   namespace signals2 {
      19             :     class slot_base;
      20             : 
      21             :     class signal_base : public noncopyable
      22             :     {
      23             :     public:
      24             :       friend class slot_base;
      25             : 
      26         830 :       virtual ~signal_base() {}
      27             :     protected:
      28             :       virtual shared_ptr<void> lock_pimpl() const = 0;
      29             :     };
      30             :   } // end namespace signals2
      31             : } // end namespace boost
      32             : 
      33             : #endif // BOOST_SIGNALS2_SIGNAL_BASE_HPP