llvm-project/libcxx/test/std/thread/thread.semaphore/acquire.pass.cpp

43 lines
1.2 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 && x86_64-apple-macosx10.15
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.14
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.13
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.12
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.11
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.10
// XFAIL: use_system_cxx_lib && x86_64-apple-macosx10.9
// <semaphore>
#include <semaphore>
#include <thread>
#include "make_test_thread.h"
#include "test_macros.h"
int main(int, char**)
{
std::counting_semaphore<> s(2);
std::thread t = support::make_test_thread([&](){
s.acquire();
});
t.join();
s.acquire();
return 0;
}