1 | //===----------------------------------------------------------------------===// |
---|---|
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // UNSUPPORTED: no-threads |
10 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
11 | // XFAIL: availability-synchronization_library-missing |
12 | |
13 | // [[nodiscard]] bool request_stop() noexcept; |
14 | |
15 | #include <cassert> |
16 | #include <concepts> |
17 | #include <stop_token> |
18 | #include <thread> |
19 | #include <type_traits> |
20 | |
21 | #include "make_test_thread.h" |
22 | #include "test_macros.h" |
23 | |
24 | static_assert(noexcept(std::declval<std::jthread&>().request_stop())); |
25 | |
26 | int main(int, char**) { |
27 | // Represents a thread |
28 | { |
29 | std::jthread jt = support::make_test_jthread([] {}); |
30 | auto st = jt.get_stop_token(); |
31 | assert(!st.stop_requested()); |
32 | std::same_as<bool> decltype(auto) result = jt.request_stop(); |
33 | assert(result); |
34 | assert(st.stop_requested()); |
35 | } |
36 | |
37 | // Does not represent a thread |
38 | { |
39 | std::jthread jt{}; |
40 | std::same_as<bool> decltype(auto) result = jt.request_stop(); |
41 | assert(!result); |
42 | } |
43 | |
44 | return 0; |
45 | } |
46 |