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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // UNSUPPORTED: libcpp-has-no-threads 10 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 "test_macros.h" 23 24 std::condition_variable* cv; 25 std::mutex m; 26 typedef std::unique_lock<std::mutex> Lock; 27 28 bool f_ready = false; 29 bool g_ready = false; 30 31 void f() 32 { 33 Lock lk(m); 34 f_ready = true; 35 cv->notify_one(); 36 delete cv; 37 } 38 39 void g() 40 { 41 Lock lk(m); 42 g_ready = true; 43 cv->notify_one(); 44 while (!f_ready) 45 cv->wait(lk); 46 } 47 48 int main(int, char**) 49 { 50 cv = new std::condition_variable; 51 std::thread th2(g); 52 Lock lk(m); 53 while (!g_ready) 54 cv->wait(lk); 55 lk.unlock(); 56 std::thread th1(f); 57 th1.join(); 58 th2.join(); 59 60 return 0; 61 } 62