Louis Dionne f84dbd2f2b [libc++] Enable the synchronization library on Apple platforms
The synchronization library was marked as disabled on Apple platforms
up to now because we were not 100% sure that it was going to be ABI
stable. However, it's been some time since we shipped it in upstream
libc++ now and there's been no changes so far. This patch enables the
synchronization library on Apple platforms, and hence commits the ABI
stability as far as that vendor is concerned.

Differential Revision: https://reviews.llvm.org/D96790
2021-06-11 12:45:18 -04:00

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;
}