50 lines
1.5 KiB
C++
50 lines
1.5 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// UNSUPPORTED: libcpp-has-no-threads
|
|
// UNSUPPORTED: c++03, c++11
|
|
|
|
// This test requires the dylib support introduced in D68480, which shipped in macOS 11.0.
|
|
// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
|
|
|
|
// <semaphore>
|
|
|
|
#include <semaphore>
|
|
#include <thread>
|
|
#include <chrono>
|
|
#include <cassert>
|
|
|
|
#include "make_test_thread.h"
|
|
#include "test_macros.h"
|
|
|
|
int main(int, char**)
|
|
{
|
|
auto const start = std::chrono::steady_clock::now();
|
|
|
|
std::counting_semaphore<> s(0);
|
|
|
|
assert(!s.try_acquire_until(start + std::chrono::milliseconds(250)));
|
|
assert(!s.try_acquire_for(std::chrono::milliseconds(250)));
|
|
|
|
std::thread t = support::make_test_thread([&](){
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(250));
|
|
s.release();
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(250));
|
|
s.release();
|
|
});
|
|
|
|
assert(s.try_acquire_until(start + std::chrono::seconds(2)));
|
|
assert(s.try_acquire_for(std::chrono::seconds(2)));
|
|
t.join();
|
|
|
|
auto const end = std::chrono::steady_clock::now();
|
|
assert(end - start < std::chrono::seconds(10));
|
|
|
|
return 0;
|
|
}
|