libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc

   1 // Copyright (C) 2017-2018 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run }
  19 // { dg-options "-pthread"  }
  20 // { dg-require-effective-target c++11 }
  21 // { dg-require-effective-target pthread }
  22 // { dg-require-cstdint "" }
  23 // { dg-require-gthreads "" }
  24
  25 #include <condition_variable>
  26 #include <testsuite_hooks.h>
  27
  28 // PR libstdc++/68519
  29
  30 bool val = false;
  31 std::mutex mx;
  32 std::condition_variable cv;
  33
  34 void
  35 test01()
  36 {
  37   for (int i = 0; i < 3; ++i)
  38   {
  39     std::unique_lock<std::mutex> l(mx);
  40     auto start = std::chrono::system_clock::now();
  41     cv.wait_for(l, std::chrono::duration<float>(1), [] { return val; });
  42     auto t = std::chrono::system_clock::now();
  43     VERIFY( (t - start) >= std::chrono::seconds(1) );
  44   }
  45 }
  46
  47 int
  48 main()
  49 {
  50   test01();
  51 }