libcxx/test/std/thread/thread.condition/thread.condition.condvarany/destructor.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // UNSUPPORTED: no-threads
  10
  11 // <condition_variable>
  12
  13 // class condition_variable_any;
  14
  15 // ~condition_variable_any();
  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_any* cv;
  26 std::mutex m;
  27
  28 bool f_ready = false;
  29 bool g_ready = false;
  30
  31 void f()
  32 {
  33     m.lock();
  34     f_ready = true;
  35     cv->notify_one();
  36     delete cv;
  37     m.unlock();
  38 }
  39
  40 void g()
  41 {
  42     m.lock();
  43     g_ready = true;
  44     cv->notify_one();
  45     while (!f_ready)
  46         cv->wait(m);
  47     m.unlock();
  48 }
  49
  50 int main(int, char**)
  51 {
  52     cv = new std::condition_variable_any;
  53     std::thread th2 = support::make_test_thread(g);
  54     m.lock();
  55     while (!g_ready)
  56         cv->wait(m);
  57     m.unlock();
  58     std::thread th1 = support::make_test_thread(f);
  59     th1.join();
  60     th2.join();
  61
  62   return 0;
  63 }