]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // Copyright (C) 2012-2013 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 | // <boost/thread/future.hpp> | |
7 | ||
8 | // class future<R> | |
9 | ||
10 | // template<typename F> | |
11 | // auto then(F&& func) -> future<decltype(func(*this))>; | |
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/detail/lightweight_test.hpp> | |
20 | ||
21 | #if defined BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION | |
22 | ||
b32b8144 FG |
23 | #ifdef BOOST_MSVC |
24 | #pragma warning(disable: 4127) // conditional expression is constant | |
25 | #endif | |
7c673cae FG |
26 | |
27 | int p1() | |
28 | { | |
29 | BOOST_THREAD_LOG << "p1 < " << BOOST_THREAD_END_LOG; | |
30 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
31 | BOOST_THREAD_LOG << "p1 >" << BOOST_THREAD_END_LOG; | |
32 | return 1; | |
33 | } | |
34 | ||
35 | int p2(boost::future<int> f) | |
36 | { | |
37 | BOOST_THREAD_LOG << "p2 <" << &f << BOOST_THREAD_END_LOG; | |
38 | BOOST_TEST(f.valid()); | |
39 | int i = f.get(); | |
40 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
41 | BOOST_THREAD_LOG << "p2 <" << &f << BOOST_THREAD_END_LOG; | |
42 | return 2 * i; | |
43 | } | |
44 | ||
45 | void p3(boost::future<int> f) | |
46 | { | |
47 | BOOST_THREAD_LOG << "p3 <" << &f << BOOST_THREAD_END_LOG; | |
48 | BOOST_TEST(f.valid()); | |
49 | int i = f.get(); | |
50 | boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); | |
51 | BOOST_THREAD_LOG << "p3 <" << &f << " " <<i << BOOST_THREAD_END_LOG; | |
52 | return; | |
53 | } | |
54 | ||
55 | int main() | |
56 | { | |
57 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
58 | { | |
59 | boost::future<int> f1 = boost::async(boost::launch::async, &p1); | |
60 | BOOST_TEST(f1.valid()); | |
61 | boost::future<int> f2 = f1.then(&p2); | |
62 | BOOST_TEST(f2.valid()); | |
63 | BOOST_TEST(! f1.valid()); | |
64 | try | |
65 | { | |
66 | BOOST_TEST(f2.get()==2); | |
67 | } | |
68 | catch (std::exception& ex) | |
69 | { | |
70 | BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG; | |
71 | BOOST_TEST(false); | |
72 | } | |
73 | catch (...) | |
74 | { | |
75 | BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG; | |
76 | BOOST_TEST(false); | |
77 | } | |
78 | } | |
79 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
80 | { | |
81 | boost::future<int> f1 = boost::async(boost::launch::async, &p1); | |
82 | BOOST_TEST(f1.valid()); | |
83 | boost::future<void> f2 = f1.then(&p3); | |
84 | BOOST_TEST(f2.valid()); | |
85 | try | |
86 | { | |
87 | f2.wait(); | |
88 | } | |
89 | catch (std::exception& ex) | |
90 | { | |
91 | BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG; | |
92 | BOOST_TEST(false); | |
93 | } | |
94 | catch (...) | |
95 | { | |
96 | BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG; | |
97 | BOOST_TEST(false); | |
98 | } | |
99 | } | |
100 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
101 | { | |
102 | boost::future<int> f2 = boost::async(p1).then(&p2); | |
103 | BOOST_TEST(f2.get()==2); | |
104 | } | |
105 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
106 | { | |
107 | boost::future<int> f1 = boost::async(p1); | |
108 | boost::future<int> f21 = f1.then(&p2); | |
109 | boost::future<int> f2= f21.then(&p2); | |
110 | BOOST_TEST(f2.get()==4); | |
111 | } | |
112 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
113 | { | |
114 | boost::future<int> f1 = boost::async(p1); | |
115 | boost::future<int> f2= f1.then(&p2).then(&p2); | |
116 | BOOST_TEST(f2.get()==4); | |
117 | } | |
118 | BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; | |
119 | { | |
120 | boost::future<int> f2 = boost::async(p1).then(&p2).then(&p2); | |
121 | BOOST_TEST(f2.get()==4); | |
122 | } | |
123 | ||
124 | return boost::report_errors(); | |
125 | } | |
126 | ||
127 | #else | |
128 | ||
129 | int main() | |
130 | { | |
131 | return 0; | |
132 | } | |
133 | #endif |