46 lines
1.1 KiB
C++
46 lines
1.1 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 <chrono>
|
|
#include <thread>
|
|
#include <type_traits>
|
|
|
|
#include "make_test_thread.h"
|
|
#include "test_macros.h"
|
|
|
|
static_assert(std::is_same<std::binary_semaphore, std::counting_semaphore<1>>::value, "");
|
|
|
|
int main(int, char**)
|
|
{
|
|
std::binary_semaphore s(1);
|
|
|
|
auto l = [&](){
|
|
for(int i = 0; i < 1024; ++i) {
|
|
s.acquire();
|
|
std::this_thread::sleep_for(std::chrono::microseconds(1));
|
|
s.release();
|
|
}
|
|
};
|
|
|
|
std::thread t = support::make_test_thread(l);
|
|
l();
|
|
|
|
t.join();
|
|
|
|
return 0;
|
|
}
|