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1 | // Copyright (C) 2013 Vicente J. Botet Escriba |
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 | // <boost/thread/future.hpp> | |
7 | ||
8 | // class future<R> | |
9 | ||
10 | // R future::get_or(R&&); | |
11 | // R& future<R&>::get_or(R&); | |
12 | ||
13 | #define BOOST_THREAD_VERSION 4 | |
14 | //#define BOOST_THREAD_USES_LOG | |
15 | #define BOOST_THREAD_USES_LOG_THREAD_ID | |
16 | #include <boost/thread/detail/log.hpp> | |
17 | ||
18 | #include <boost/thread/future.hpp> | |
19 | #include <boost/thread/thread.hpp> | |
20 | #include <boost/core/ref.hpp> | |
21 | #include <boost/detail/lightweight_test.hpp> | |
22 | ||
23 | #if defined BOOST_THREAD_USES_CHRONO | |
24 | ||
b32b8144 FG |
25 | #ifdef BOOST_MSVC |
26 | #pragma warning(disable: 4127) // conditional expression is constant | |
27 | #endif | |
28 | ||
7c673cae FG |
29 | namespace boost |
30 | { | |
31 | template <typename T> | |
32 | struct wrap | |
33 | { | |
34 | wrap(T const& v) : value(v){} | |
35 | T value; | |
36 | ||
37 | }; | |
38 | ||
39 | template <typename T> | |
40 | exception_ptr make_exception_ptr(T v) { | |
41 | return copy_exception(wrap<T>(v)); | |
42 | } | |
43 | } | |
44 | ||
45 | void func1(boost::promise<int> p) | |
46 | { | |
47 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
48 | p.set_value(3); | |
49 | } | |
50 | ||
51 | void func2(boost::promise<int> p) | |
52 | { | |
53 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
54 | p.set_exception(boost::make_exception_ptr(3)); | |
55 | } | |
56 | ||
57 | int j = 0; | |
58 | ||
59 | void func3(boost::promise<int&> p) | |
60 | { | |
61 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
62 | j = 5; | |
63 | p.set_value(j); | |
64 | } | |
65 | ||
66 | void func4(boost::promise<int&> p) | |
67 | { | |
68 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
69 | p.set_exception(boost::make_exception_ptr(3.5)); | |
70 | } | |
71 | ||
72 | void func5(boost::promise<void> p) | |
73 | { | |
74 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
75 | p.set_value(); | |
76 | } | |
77 | ||
78 | void func6(boost::promise<void> p) | |
79 | { | |
80 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
81 | p.set_exception(boost::make_exception_ptr(4)); | |
82 | } | |
83 | ||
84 | ||
85 | int main() | |
86 | { | |
87 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
88 | { | |
89 | typedef int T; | |
90 | { | |
91 | boost::promise<T> p; | |
92 | boost::future<T> f = p.get_future(); | |
93 | #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) | |
94 | boost::thread(func1, boost::move(p)).detach(); | |
95 | #else | |
96 | p.set_value(3); | |
97 | #endif | |
98 | BOOST_TEST(f.valid()); | |
99 | BOOST_TEST(f.get_or(4) == 3); | |
100 | #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET | |
101 | BOOST_TEST(!f.valid()); | |
102 | #endif | |
103 | } | |
104 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
105 | { | |
106 | boost::promise<T> p; | |
107 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
108 | boost::future<T> f = p.get_future(); | |
109 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
110 | #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) | |
111 | boost::thread(func2, boost::move(p)).detach(); | |
112 | #else | |
113 | p.set_exception(boost::make_exception_ptr(3)); | |
114 | #endif | |
115 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
116 | try | |
117 | { | |
118 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
119 | BOOST_TEST(f.valid()); | |
120 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
121 | BOOST_TEST(f.get_or(4) == 4); | |
122 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
123 | } | |
124 | catch (...) | |
125 | { | |
126 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
127 | BOOST_TEST(false); | |
128 | } | |
129 | #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET | |
130 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
131 | BOOST_TEST(!f.valid()); | |
132 | #endif | |
133 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
134 | } | |
135 | } | |
136 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
137 | { | |
138 | typedef int& T; | |
139 | { | |
140 | boost::promise<T> p; | |
141 | boost::future<T> f = p.get_future(); | |
142 | #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) | |
143 | boost::thread(func3, boost::move(p)).detach(); | |
144 | #else | |
145 | int j=5; | |
146 | p.set_value(j); | |
147 | #endif | |
148 | BOOST_TEST(f.valid()); | |
149 | int k=4; | |
150 | BOOST_TEST(f.get_or(boost::ref(k)) == 5); | |
151 | #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET | |
152 | BOOST_TEST(!f.valid()); | |
153 | #endif | |
154 | } | |
155 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
156 | { | |
157 | boost::promise<T> p; | |
158 | boost::future<T> f = p.get_future(); | |
159 | #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) | |
160 | boost::thread(func4, boost::move(p)).detach(); | |
161 | #else | |
162 | p.set_exception(boost::make_exception_ptr(3.5)); | |
163 | #endif | |
164 | try | |
165 | { | |
166 | BOOST_TEST(f.valid()); | |
167 | int j=4; | |
168 | BOOST_TEST(f.get_or(boost::ref(j)) == 4); | |
169 | } | |
170 | catch (...) | |
171 | { | |
172 | BOOST_TEST(false); | |
173 | } | |
174 | #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET | |
175 | BOOST_TEST(!f.valid()); | |
176 | #endif | |
177 | } | |
178 | } | |
179 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
180 | ||
181 | ||
182 | return boost::report_errors(); | |
183 | } | |
184 | ||
185 | #else | |
186 | #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" | |
187 | #endif |