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49 lines
1.3 KiB
49 lines
1.3 KiB
// Boost.Signals2 library |
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// Copyright Frank Mori Hess 2007,2009. |
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// Copyright Timmo Stange 2007. |
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// Copyright Douglas Gregor 2001-2004. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// Compatibility class to ease porting from the original |
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// Boost.Signals library. However, |
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// boost::signals2::trackable is NOT thread-safe. |
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// For more information, see http://www.boost.org |
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#ifndef BOOST_SIGNALS2_TRACKABLE_HPP |
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#define BOOST_SIGNALS2_TRACKABLE_HPP |
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#include <boost/assert.hpp> |
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#include <boost/shared_ptr.hpp> |
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namespace boost { |
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namespace signals2 { |
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namespace detail |
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{ |
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class tracked_objects_visitor; |
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} |
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class trackable { |
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protected: |
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trackable(): _tracked_ptr(static_cast<int*>(0)) {} |
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trackable(const trackable &): _tracked_ptr(static_cast<int*>(0)) {} |
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trackable& operator=(const trackable &) |
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{ |
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return *this; |
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} |
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~trackable() {} |
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private: |
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friend class detail::tracked_objects_visitor; |
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const shared_ptr<void>& get_shared_ptr() const |
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{ |
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return _tracked_ptr; |
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} |
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shared_ptr<void> _tracked_ptr; |
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}; |
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} // end namespace signals2 |
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} // end namespace boost |
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#endif // BOOST_SIGNALS2_TRACKABLE_HPP
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