| 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 | // Windows cannot detect the deadlock. Instead of throwing system_error, |
| 10 | // it would dead lock the test |
| 11 | // UNSUPPORTED: windows |
| 12 | |
| 13 | // TSAN bug: https://github.com/llvm/llvm-project/issues/66537 |
| 14 | // UNSUPPORTED: tsan |
| 15 | |
| 16 | // UNSUPPORTED: no-threads |
| 17 | // UNSUPPORTED: no-exceptions |
| 18 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| 19 | // XFAIL: availability-synchronization_library-missing |
| 20 | |
| 21 | // void join(); |
| 22 | |
| 23 | #include <atomic> |
| 24 | #include <cassert> |
| 25 | #include <chrono> |
| 26 | #include <concepts> |
| 27 | #include <functional> |
| 28 | #include <system_error> |
| 29 | #include <thread> |
| 30 | #include <type_traits> |
| 31 | #include <vector> |
| 32 | |
| 33 | #include "make_test_thread.h" |
| 34 | #include "test_macros.h" |
| 35 | |
| 36 | int main(int, char**) { |
| 37 | // resource_deadlock_would_occur - if deadlock is detected or get_id() == this_thread::get_id(). |
| 38 | { |
| 39 | std::function<void()> f; |
| 40 | std::atomic_bool start = false; |
| 41 | std::atomic_bool done = false; |
| 42 | |
| 43 | std::jthread jt = support::make_test_jthread([&] { |
| 44 | start.wait(false); |
| 45 | f(); |
| 46 | done = true; |
| 47 | done.notify_all(); |
| 48 | }); |
| 49 | |
| 50 | f = [&] { |
| 51 | try { |
| 52 | jt.join(); |
| 53 | assert(false); |
| 54 | } catch (const std::system_error& err) { |
| 55 | assert(err.code() == std::errc::resource_deadlock_would_occur); |
| 56 | } |
| 57 | }; |
| 58 | start = true; |
| 59 | start.notify_all(); |
| 60 | done.wait(false); |
| 61 | } |
| 62 | |
| 63 | return 0; |
| 64 | } |
| 65 |