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-rw-r--r--boost/signals/trackable.hpp173
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diff --git a/boost/signals/trackable.hpp b/boost/signals/trackable.hpp
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--- a/boost/signals/trackable.hpp
+++ /dev/null
@@ -1,173 +0,0 @@
-// Boost.Signals library
-
-// Copyright Douglas Gregor 2001-2004. Use, modification and
-// distribution is subject to 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)
-
-// For more information, see http://www.boost.org
-
-#ifndef BOOST_SIGNALS_TRACKABLE_HPP
-#define BOOST_SIGNALS_TRACKABLE_HPP
-
-#include <boost/type_traits.hpp>
-#include <boost/signals/connection.hpp>
-#include <boost/ref.hpp>
-#include <boost/utility/addressof.hpp>
-#include <list>
-#include <vector>
-
-#ifdef BOOST_HAS_ABI_HEADERS
-# include BOOST_ABI_PREFIX
-#endif
-
-namespace boost {
-
-namespace BOOST_SIGNALS_NAMESPACE {
- // Base class for "trackable" objects that can be tracked when they are
- // bound in slot target functions. When a trackable object is destroyed,
- // the signal/slot connections are disconnected automatically.
- class BOOST_SIGNALS_DECL trackable {
- private:
- static void signal_disconnected(void* obj, void* data);
-
- friend class detail::signal_base_impl;
- friend class detail::slot_base;
- void signal_connected(connection, BOOST_SIGNALS_NAMESPACE::detail::bound_object&) const;
-
- protected:
- trackable() : connected_signals(), dying(false) {}
- trackable(const trackable&) : connected_signals(), dying(false) {}
- ~trackable();
-
- trackable& operator=(const trackable&)
- {
- dying = true;
- connected_signals.clear();
- dying = false;
- return *this;
- }
-
- private:
- typedef std::list<connection> connection_list;
- typedef connection_list::iterator connection_iterator;
-
- // List of connections that this object is part of
- mutable connection_list connected_signals;
-
- // True when the object is being destroyed
- mutable bool dying;
- };
-
- namespace detail {
- template<bool Cond> struct truth {};
-
- // A visitor that adds each trackable object to a vector
- class bound_objects_visitor {
- public:
- bound_objects_visitor(std::vector<const trackable*>& v) :
- bound_objects(v)
- {
- }
-
- template<typename T>
- void operator()(const T& t) const
- {
- decode(t, 0);
- }
-
- private:
- // decode() decides between a reference wrapper and anything else
- template<typename T>
- void decode(const reference_wrapper<T>& t, int) const
- {
- add_if_trackable(t.get_pointer());
- }
-
- template<typename T>
- void decode(const T& t, long) const
- {
- typedef truth<(is_pointer<T>::value)> is_a_pointer;
- maybe_get_pointer(t, is_a_pointer());
- }
-
- // maybe_get_pointer() decides between a pointer and a non-pointer
- template<typename T>
- void maybe_get_pointer(const T& t, truth<true>) const
- {
- add_if_trackable(t);
- }
-
- template<typename T>
- void maybe_get_pointer(const T& t, truth<false>) const
- {
- // Take the address of this object, because the object itself may be
- // trackable
- add_if_trackable(boost::addressof(t));
- }
-
- // add_if_trackable() adds trackable objects to the list of bound objects
- inline void add_if_trackable(const trackable* b) const
- {
- if (b) {
- bound_objects.push_back(b);
- }
- }
-
- inline void add_if_trackable(const void*) const { }
-
- template<typename R>
- inline void add_if_trackable(R (*)()) const { }
-
- template<typename R, typename T1>
- inline void add_if_trackable(R (*)(T1)) const { }
-
- template<typename R, typename T1, typename T2>
- inline void add_if_trackable(R (*)(T1, T2)) const { }
-
- template<typename R, typename T1, typename T2, typename T3>
- inline void add_if_trackable(R (*)(T1, T2, T3)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4>
- inline void add_if_trackable(R (*)(T1, T2, T3, T4)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5>
- inline void add_if_trackable(R (*)(T1, T2, T3, T4, T5)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5, typename T6>
- inline void add_if_trackable(R (*)(T1, T2, T3, T4, T5, T6)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5, typename T6, typename T7>
- inline void add_if_trackable(R (*)(T1, T2, T3, T4, T5, T6, T7)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5, typename T6, typename T7, typename T8>
- inline void
- add_if_trackable(R (*)(T1, T2, T3, T4, T5, T6, T7, T8)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5, typename T6, typename T7, typename T8, typename T9>
- inline void
- add_if_trackable(R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9)) const { }
-
- template<typename R, typename T1, typename T2, typename T3, typename T4,
- typename T5, typename T6, typename T7, typename T8, typename T9,
- typename T10>
- inline void
- add_if_trackable(R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)) const { }
-
- std::vector<const trackable*>& bound_objects;
- };
- } // end namespace detail
-} // end namespace BOOST_SIGNALS_NAMESPACE
-
-} // end namespace boost
-
-#ifdef BOOST_HAS_ABI_HEADERS
-# include BOOST_ABI_SUFFIX
-#endif
-
-#endif // BOOST_SIGNALS_TRACKABLE_HPP