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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Windows cannot detect the deadlock. Instead of throwing system_error,
// it would dead lock the test
// UNSUPPORTED: windows
// TSAN bug: https://github.com/llvm/llvm-project/issues/66537
// UNSUPPORTED: tsan
// UNSUPPORTED: no-threads
// UNSUPPORTED: no-exceptions
// UNSUPPORTED: libcpp-has-no-experimental-stop_token
// UNSUPPORTED: c++03, c++11, c++14, c++17
// XFAIL: availability-synchronization_library-missing
// void join();
#include <atomic>
#include <cassert>
#include <chrono>
#include <concepts>
#include <functional>
#include <system_error>
#include <thread>
#include <type_traits>
#include <vector>
#include "make_test_thread.h"
#include "test_macros.h"
int main(int, char**) {
// resource_deadlock_would_occur - if deadlock is detected or get_id() == this_thread::get_id().
{
std::function<void()> f;
std::atomic_bool start = false;
std::atomic_bool done = false;
std::jthread jt = support::make_test_jthread([&] {
start.wait(false);
f();
done = true;
done.notify_all();
});
f = [&] {
try {
jt.join();
assert(false);
} catch (const std::system_error& err) {
assert(err.code() == std::errc::resource_deadlock_would_occur);
}
};
start = true;
start.notify_all();
done.wait(false);
}
return 0;
}
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