| // Copyright (C) 2013 Vicente J. Botet Escriba |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| // <boost/thread/future.hpp> |
| |
| // class future<R> |
| |
| // R future::get_or(R&&); |
| // R& future<R&>::get_or(R&); |
| |
| #define BOOST_THREAD_VERSION 4 |
| //#define BOOST_THREAD_USES_LOG |
| #define BOOST_THREAD_USES_LOG_THREAD_ID |
| #include <boost/thread/detail/log.hpp> |
| |
| #include <boost/thread/future.hpp> |
| #include <boost/thread/thread.hpp> |
| #include <boost/core/ref.hpp> |
| #include <boost/detail/lightweight_test.hpp> |
| |
| #if defined BOOST_THREAD_USES_CHRONO |
| |
| namespace boost |
| { |
| template <typename T> |
| struct wrap |
| { |
| wrap(T const& v) : value(v){} |
| T value; |
| |
| }; |
| |
| template <typename T> |
| exception_ptr make_exception_ptr(T v) { |
| return copy_exception(wrap<T>(v)); |
| } |
| } |
| |
| void func1(boost::promise<int> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| p.set_value(3); |
| } |
| |
| void func2(boost::promise<int> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| p.set_exception(boost::make_exception_ptr(3)); |
| } |
| |
| int j = 0; |
| |
| void func3(boost::promise<int&> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| j = 5; |
| p.set_value(j); |
| } |
| |
| void func4(boost::promise<int&> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| p.set_exception(boost::make_exception_ptr(3.5)); |
| } |
| |
| void func5(boost::promise<void> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| p.set_value(); |
| } |
| |
| void func6(boost::promise<void> p) |
| { |
| boost::this_thread::sleep_for(boost::chrono::milliseconds(500)); |
| p.set_exception(boost::make_exception_ptr(4)); |
| } |
| |
| |
| int main() |
| { |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| { |
| typedef int T; |
| { |
| boost::promise<T> p; |
| boost::future<T> f = p.get_future(); |
| #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) |
| boost::thread(func1, boost::move(p)).detach(); |
| #else |
| p.set_value(3); |
| #endif |
| BOOST_TEST(f.valid()); |
| BOOST_TEST(f.get_or(4) == 3); |
| #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET |
| BOOST_TEST(!f.valid()); |
| #endif |
| } |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| { |
| boost::promise<T> p; |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| boost::future<T> f = p.get_future(); |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) |
| boost::thread(func2, boost::move(p)).detach(); |
| #else |
| p.set_exception(boost::make_exception_ptr(3)); |
| #endif |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| try |
| { |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| BOOST_TEST(f.valid()); |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| BOOST_TEST(f.get_or(4) == 4); |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| } |
| catch (...) |
| { |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| BOOST_TEST(false); |
| } |
| #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| BOOST_TEST(!f.valid()); |
| #endif |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| } |
| } |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| { |
| typedef int& T; |
| { |
| boost::promise<T> p; |
| boost::future<T> f = p.get_future(); |
| #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) |
| boost::thread(func3, boost::move(p)).detach(); |
| #else |
| int j=5; |
| p.set_value(j); |
| #endif |
| BOOST_TEST(f.valid()); |
| int k=4; |
| BOOST_TEST(f.get_or(boost::ref(k)) == 5); |
| #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET |
| BOOST_TEST(!f.valid()); |
| #endif |
| } |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| { |
| boost::promise<T> p; |
| boost::future<T> f = p.get_future(); |
| #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) |
| boost::thread(func4, boost::move(p)).detach(); |
| #else |
| p.set_exception(boost::make_exception_ptr(3.5)); |
| #endif |
| try |
| { |
| BOOST_TEST(f.valid()); |
| int j=4; |
| BOOST_TEST(f.get_or(boost::ref(j)) == 4); |
| } |
| catch (...) |
| { |
| BOOST_TEST(false); |
| } |
| #ifdef BOOST_THREAD_PROVIDES_FUTURE_INVALID_AFTER_GET |
| BOOST_TEST(!f.valid()); |
| #endif |
| } |
| } |
| BOOST_THREAD_LOG << BOOST_THREAD_END_LOG; |
| |
| |
| return boost::report_errors(); |
| } |
| |
| #else |
| #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" |
| #endif |