| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| // UNSUPPORTED: c++03 |
| |
| // TODO(ldionne): This test fails on Ubuntu Focal on our CI nodes (and only there), in 32 bit mode. |
| // UNSUPPORTED: linux && 32bits-on-64bits |
| |
| // <future> |
| |
| // class future<R> |
| |
| // template <class Rep, class Period> |
| // future_status |
| // wait_for(const chrono::duration<Rep, Period>& rel_time) const; |
| |
| #include <future> |
| #include <cassert> |
| |
| #include "make_test_thread.h" |
| #include "test_macros.h" |
| |
| typedef std::chrono::milliseconds ms; |
| |
| static const ms sleepTime(500); |
| static const ms waitTime(5000); |
| |
| void func1(std::promise<int> p) |
| { |
| std::this_thread::sleep_for(sleepTime); |
| p.set_value(3); |
| } |
| |
| int j = 0; |
| |
| void func3(std::promise<int&> p) |
| { |
| std::this_thread::sleep_for(sleepTime); |
| j = 5; |
| p.set_value(j); |
| } |
| |
| void func5(std::promise<void> p) |
| { |
| std::this_thread::sleep_for(sleepTime); |
| p.set_value(); |
| } |
| |
| template <typename T, typename F> |
| void test(F func, bool waitFirst) { |
| typedef std::chrono::high_resolution_clock Clock; |
| std::promise<T> p; |
| std::future<T> f = p.get_future(); |
| Clock::time_point t1, t0 = Clock::now(); |
| support::make_test_thread(func, std::move(p)).detach(); |
| assert(f.valid()); |
| assert(f.wait_for(ms(1)) == std::future_status::timeout); |
| assert(f.valid()); |
| if (waitFirst) { |
| f.wait(); |
| assert(f.valid()); |
| t1 = Clock::now(); |
| assert(f.wait_for(ms(waitTime)) == std::future_status::ready); |
| assert(f.valid()); |
| } else { |
| assert(f.wait_for(ms(waitTime)) == std::future_status::ready); |
| assert(f.valid()); |
| t1 = Clock::now(); |
| f.wait(); |
| assert(f.valid()); |
| } |
| assert(t1 - t0 >= sleepTime); |
| } |
| |
| int main(int, char**) |
| { |
| test<int>(func1, true); |
| test<int&>(func3, true); |
| test<void>(func5, true); |
| test<int>(func1, false); |
| test<int&>(func3, false); |
| test<void>(func5, false); |
| return 0; |
| } |