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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 | #include <boost/config.hpp> | |
7 | #if ! defined BOOST_NO_CXX11_DECLTYPE | |
8 | #define BOOST_RESULT_OF_USE_DECLTYPE | |
9 | #endif | |
10 | ||
11 | #define BOOST_THREAD_VERSION 4 | |
12 | //#define BOOST_THREAD_USES_LOG | |
13 | #define BOOST_THREAD_USES_LOG_THREAD_ID | |
14 | ||
15 | #include <boost/thread/detail/log.hpp> | |
16 | #include <boost/thread/future.hpp> | |
17 | #include <boost/assert.hpp> | |
18 | #include <string> | |
19 | #include <iostream> | |
20 | ||
21 | #if defined BOOST_THREAD_PROVIDES_FUTURE_UNWRAP | |
22 | ||
23 | #ifdef BOOST_MSVC | |
24 | #pragma warning(disable: 4127) // conditional expression is constant | |
25 | #endif | |
26 | ||
27 | int p1() | |
28 | { | |
29 | BOOST_THREAD_LOG << "P1" << BOOST_THREAD_END_LOG; | |
30 | return 123; | |
31 | } | |
32 | ||
33 | boost::future<int> p2() | |
34 | { | |
35 | BOOST_THREAD_LOG << "<P2" << BOOST_THREAD_END_LOG; | |
36 | boost::future<int> f1 = boost::async(boost::launch::async, &p1); | |
37 | BOOST_THREAD_LOG << "P2>" << BOOST_THREAD_END_LOG; | |
38 | return boost::move(f1); | |
39 | } | |
40 | ||
41 | int main() | |
42 | { | |
43 | const int number_of_tests = 100; | |
44 | BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG; | |
45 | for (int i=0; i< number_of_tests; i++) | |
46 | try | |
47 | { | |
48 | ||
49 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
50 | { | |
51 | boost::future<int> inner_future = boost::async(boost::launch::async, &p2).unwrap(); | |
52 | inner_future.wait(); | |
53 | int ii = inner_future.get(); | |
54 | BOOST_THREAD_LOG << "ii= "<< ii << "" << BOOST_THREAD_END_LOG; | |
55 | } | |
56 | #endif | |
57 | { | |
58 | boost::future<boost::future<int> > outer_future = boost::async(boost::launch::async, &p2); | |
59 | boost::future<int> inner_future = outer_future.unwrap(); | |
60 | inner_future.wait(); | |
61 | int ii = inner_future.get(); | |
62 | BOOST_THREAD_LOG << "ii= "<< ii << "" << BOOST_THREAD_END_LOG; | |
63 | } | |
64 | { | |
65 | boost::future<boost::future<int> > outer_future = boost::async(boost::launch::async, &p2); | |
66 | boost::future<int> inner_future = outer_future.unwrap(); | |
67 | int ii = inner_future.get(); | |
68 | BOOST_THREAD_LOG << "ii= "<< ii << "" << BOOST_THREAD_END_LOG; | |
69 | } | |
70 | } | |
71 | catch (std::exception& ex) | |
72 | { | |
73 | std::cout << "ERRORRRRR "<<ex.what() << "" << std::endl; | |
74 | BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG; | |
75 | return 1; | |
76 | } | |
77 | catch (...) | |
78 | { | |
79 | std::cout << " ERRORRRRR exception thrown" << std::endl; | |
80 | BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG; | |
81 | return 2; | |
82 | } | |
83 | BOOST_THREAD_LOG << "MAIN>" << BOOST_THREAD_END_LOG; | |
84 | return 0; | |
85 | } | |
86 | #else | |
87 | ||
88 | int main() | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | #endif |