| //===----------------------------------------------------------------------===// |
| // |
| // 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: no-threads |
| // UNSUPPORTED: c++03, c++11 |
| |
| // Until we drop support for the synchronization library in C++11/14/17 |
| // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS |
| |
| // XFAIL: availability-synchronization_library-missing |
| |
| // <semaphore> |
| |
| #include <semaphore> |
| #include <thread> |
| |
| #include "make_test_thread.h" |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| std::counting_semaphore<> s(2); |
| |
| std::thread t = support::make_test_thread([&](){ |
| s.acquire(); |
| }); |
| t.join(); |
| |
| s.acquire(); |
| |
| return 0; |
| } |