1// Copyright (C) 2010 Vicente Botet
2//
3// Distributed under the Boost Software License, Version 1.0. (See accompanying
4// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6#include <iostream>
7#include <boost/thread.hpp>
8#include <boost/thread/thread_only.hpp>
9#include <boost/optional.hpp>
10#include <boost/detail/lightweight_test.hpp>
11
12using namespace boost;
13using namespace boost::chrono;
14
15struct dummy_class_tracks_deletions
16{
17 static unsigned deletions;
18
19 dummy_class_tracks_deletions()
20 {
21 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
22 }
23 ~dummy_class_tracks_deletions()
24 {
25 ++deletions;
26 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
27 }
28
29};
30unsigned dummy_class_tracks_deletions::deletions=0;
31
32
33optional<thread_specific_ptr<dummy_class_tracks_deletions> > optr;
34//struct X
35//{
36// thread_specific_ptr<int> f;
37//} sptr;
38
39void other_thread()
40{
41
42 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
43 optr = none;
44 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
45 optr = in_place();
46 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
47 BOOST_TEST(optr->get() == 0);
48 this_thread::sleep(rel_time: posix_time::seconds(5));
49 BOOST_TEST(optr->get() == 0);
50 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
51
52}
53
54int main()
55{
56
57 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
58 dummy_class_tracks_deletions * pi = new dummy_class_tracks_deletions;
59 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
60 optr = in_place();
61 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
62 optr->reset(new_value: pi);
63 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
64 BOOST_TEST(optr->get() == pi);
65 thread t1(bind(f: &other_thread));
66 this_thread::sleep(rel_time: posix_time::seconds(5));
67 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
68 BOOST_TEST(optr->get() == pi);
69 std::cout << __FILE__ << ":" << __LINE__ << boost::this_thread::get_id() << std::endl;
70 t1.join();
71 return boost::report_errors();
72
73}
74

source code of boost/libs/thread/test/test_3837.cpp