| 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: 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 "make_test_thread.h" |
| 23 | #include "test_macros.h" |
| 24 | |
| 25 | std::condition_variable* cv; |
| 26 | std::mutex m; |
| 27 | typedef std::unique_lock<std::mutex> Lock; |
| 28 | |
| 29 | bool f_ready = false; |
| 30 | bool g_ready = false; |
| 31 | |
| 32 | void f() |
| 33 | { |
| 34 | Lock lk(m); |
| 35 | f_ready = true; |
| 36 | cv->notify_one(); |
| 37 | delete cv; |
| 38 | } |
| 39 | |
| 40 | void g() |
| 41 | { |
| 42 | Lock lk(m); |
| 43 | g_ready = true; |
| 44 | cv->notify_one(); |
| 45 | while (!f_ready) |
| 46 | cv->wait(lock&: lk); |
| 47 | } |
| 48 | |
| 49 | int 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(lock&: 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 | |