63 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// UNSUPPORTED: no-threads10 11// <condition_variable>12 13// class condition_variable;14 15// ~condition_variable();16 17#include <condition_variable>18#include <mutex>19#include <thread>20#include <cassert>21 22#include "make_test_thread.h"23#include "test_macros.h"24 25std::condition_variable* cv;26std::mutex m;27typedef std::unique_lock<std::mutex> Lock;28 29bool f_ready = false;30bool g_ready = false;31 32void f()33{34 Lock lk(m);35 f_ready = true;36 cv->notify_one();37 delete cv;38}39 40void g()41{42 Lock lk(m);43 g_ready = true;44 cv->notify_one();45 while (!f_ready)46 cv->wait(lk);47}48 49int main(int, char**)50{51 cv = new std::condition_variable;52 std::thread th2 = support::make_test_thread(g);53 Lock lk(m);54 while (!g_ready)55 cv->wait(lk);56 lk.unlock();57 std::thread th1 = support::make_test_thread(f);58 th1.join();59 th2.join();60 61 return 0;62}63