libstdc++-v3/testsuite/30_threads/recursive_mutex/try_lock/2.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) 2008-2024 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
  24 #include <mutex>
  25 #include <system_error>
  26 #include <testsuite_hooks.h>
  27
  28 int main()
  29 {
  30   typedef std::recursive_mutex mutex_type;
  31
  32   try
  33     {
  34       mutex_type m;
  35       m.lock();
  36       bool b;
  37
  38       try
  39         {
  40           b = m.try_lock();
  41           VERIFY( b );
  42           m.unlock();
  43         }
  44       catch (const std::system_error& e)
  45         {
  46           VERIFY( false );
  47         }
  48       catch(...)
  49         {
  50           VERIFY( false );
  51         }
  52
  53       m.unlock();
  54     }
  55   catch (const std::system_error& e)
  56     {
  57       VERIFY( false );
  58     }
  59   catch (...)
  60     {
  61       VERIFY( false );
  62     }
  63
  64   return 0;
  65 }