libstdc++-v3/testsuite/30_threads/shared_lock/locking/4.cc

   1 // { dg-do run }
   2 // { dg-options "-pthread"  }
   3 // { dg-require-effective-target c++14 }
   4 // { dg-require-effective-target pthread }
   5
   6 // Copyright (C) 2013-2020 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
  24 #include <chrono>
  25 #include <shared_mutex>
  26 #include <system_error>
  27 #include <testsuite_hooks.h>
  28
  29 int main()
  30 {
  31   typedef std::shared_timed_mutex mutex_type;
  32   typedef std::shared_lock<mutex_type> lock_type;
  33   typedef std::chrono::system_clock clock_type;
  34
  35   try
  36     {
  37       mutex_type m;
  38       lock_type l(m, std::defer_lock);
  39       clock_type::time_point t = clock_type::now() + std::chrono::seconds(1);
  40
  41       try
  42         {
  43           l.try_lock_until(t);
  44         }
  45       catch(const std::system_error&)
  46         {
  47           VERIFY( false );
  48         }
  49       catch (...)
  50         {
  51           VERIFY( false );
  52         }
  53
  54       VERIFY( l.owns_lock() );
  55     }
  56   catch (const std::system_error& e)
  57     {
  58       VERIFY( false );
  59     }
  60   catch (...)
  61     {
  62       VERIFY( false );
  63     }
  64
  65   return 0;
  66 }