1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
//===----------------------------------------------------------------------===//
//
// 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: 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;
}
|
