libstdc++-v3/testsuite/30_threads/condition_variable_any/members/1.cc

   1 // { dg-do run }
   2 // { dg-additional-options "-pthread" { target pthread } }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-gthreads "" }
   5
   6 // Copyright (C) 2010-2024 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <chrono>
  24 #include <condition_variable>
  25 #include <system_error>
  26 #include <testsuite_hooks.h>
  27
  28 struct Mutex
  29 {
  30   Mutex() : locked(false) { }
  31
  32   void lock()
  33   {
  34     if (locked)
  35       throw locked;
  36     mtx.lock();
  37     locked = true;
  38   }
  39
  40   void unlock()
  41   {
  42     if (!locked)
  43       throw locked;
  44     mtx.unlock();
  45     locked = false;
  46   }
  47
  48   std::mutex mtx;
  49   bool locked;
  50 };
  51
  52 void test01()
  53 {
  54   try
  55     {
  56       std::chrono::microseconds ms(500);
  57       std::condition_variable_any c1;
  58       Mutex m;
  59       m.lock();
  60
  61       auto then = std::chrono::system_clock::now();
  62       std::cv_status result = c1.wait_for(m, ms);
  63       VERIFY( result == std::cv_status::timeout );
  64       VERIFY( (std::chrono::system_clock::now() - then) >= ms );
  65       VERIFY( m.locked );
  66     }
  67   catch (const std::system_error& e)
  68     {
  69       VERIFY( false );
  70     }
  71   catch (...)
  72     {
  73       VERIFY( false );
  74     }
  75 }
  76
  77 int main()
  78 {
  79   test01();
  80   return 0;
  81 }