llvm-project/libcxx/test/std/thread/thread.jthread/join.deadlock.pass.cpp
Nikolas Klauser 34d4f0c136
[libc++][NFC] Use llvm.org/PR to link to bug reports (#156288)
We've built up quite a few links directly to github within the code
base. We should instead use `llvm.org/PR<issue-number>` to link to bugs,
since that is resilient to the bug tracker changing in the future. This
is especially relevant for tests linking to bugs, since they will
probably be there for decades to come. A nice side effect is that these
links are significantly shorter than the GH links, making them much less
of an eyesore.

This patch also replaces a few links that linked to the old bugzilla
instance on llvm.org.
2025-09-04 09:20:02 +02:00

65 lines
1.6 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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://llvm.org/PR66537
// UNSUPPORTED: tsan
// UNSUPPORTED: no-threads
// UNSUPPORTED: no-exceptions
// 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;
}