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_any; 14 15 // template <class Lock> 16 // void wait(Lock& lock); 17 18 #include <condition_variable> 19 #include <mutex> 20 #include <thread> 21 #include <cassert> 22 23 #include "make_test_thread.h" 24 #include "test_macros.h" 25 26 std::condition_variable_any cv; 27 28 typedef std::timed_mutex L0; 29 typedef std::unique_lock<L0> L1; 30 31 L0 m0; 32 33 int test1 = 0; 34 int test2 = 0; 35 f()36void f() 37 { 38 L1 lk(m0); 39 assert(test2 == 0); 40 test1 = 1; 41 cv.notify_one(); 42 while (test2 == 0) 43 cv.wait(lk); 44 assert(test2 != 0); 45 } 46 main(int,char **)47int main(int, char**) 48 { 49 L1 lk(m0); 50 std::thread t = support::make_test_thread(f); 51 assert(test1 == 0); 52 while (test1 == 0) 53 cv.wait(lk); 54 assert(test1 != 0); 55 test2 = 1; 56 lk.unlock(); 57 cv.notify_one(); 58 t.join(); 59 60 return 0; 61 } 62