| 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(policy: boost::launch::async, f: &p1); |
| 37 | BOOST_THREAD_LOG << "P2>"<< BOOST_THREAD_END_LOG; |
| 38 | return boost::move(t&: 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(policy: boost::launch::async, f: &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(policy: boost::launch::async, f: &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(policy: boost::launch::async, f: &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 |
| 93 |