blob: d6a60149a70dddb32f2e0fb699e262e81c949ba6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
// Boost.Signals2 library
// Copyright Frank Mori Hess 2007,2009.
// Copyright Timmo Stange 2007.
// 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)
// Compatibility class to ease porting from the original
// Boost.Signals library. However,
// boost::signals2::trackable is NOT thread-safe.
// For more information, see http://www.boost.org
#ifndef BOOST_SIGNALS2_TRACKABLE_HPP
#define BOOST_SIGNALS2_TRACKABLE_HPP
#include <boost/assert.hpp>
#include <boost/shared_ptr.hpp>
namespace boost {
namespace signals2 {
namespace detail
{
class tracked_objects_visitor;
}
class trackable {
protected:
trackable(): _tracked_ptr(static_cast<int*>(0)) {}
trackable(const trackable &): _tracked_ptr(static_cast<int*>(0)) {}
trackable& operator=(const trackable &)
{
return *this;
}
~trackable() {}
private:
friend class detail::tracked_objects_visitor;
const shared_ptr<void>& get_shared_ptr() const
{
return _tracked_ptr;
}
shared_ptr<void> _tracked_ptr;
};
} // end namespace signals2
} // end namespace boost
#endif // BOOST_SIGNALS2_TRACKABLE_HPP
|
Swift