libstdc++-v3/testsuite/30_threads/unique_lock/locking/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 void test01()
  29 {
  30   typedef std::mutex mutex_type;
  31   typedef std::unique_lock<mutex_type> lock_type;
  32
  33   try
  34     {
  35       lock_type l;
  36
  37       // Lock unique_lock w/o mutex
  38       try
  39         {
  40           l.lock();
  41         }
  42       catch (const std::system_error& ex)
  43         {
  44           VERIFY( ex.code() == std::make_error_code
  45                   (std::errc::operation_not_permitted) );
  46         }
  47       catch (...)
  48         {
  49           VERIFY( false );
  50         }
  51     }
  52   catch (const std::system_error& e)
  53     {
  54       VERIFY( false );
  55     }
  56   catch (...)
  57     {
  58       VERIFY( false );
  59     }
  60 }
  61
  62
  63 void test02()
  64 {
  65   typedef std::mutex mutex_type;
  66   typedef std::unique_lock<mutex_type> lock_type;
  67
  68   try
  69     {
  70       mutex_type m;
  71       lock_type l(m);
  72
  73       // Lock already locked unique_lock.
  74       try
  75         {
  76           l.lock();
  77         }
  78       catch (const std::system_error& ex)
  79         {
  80           VERIFY( ex.code() == std::make_error_code
  81                   (std::errc::resource_deadlock_would_occur) );
  82         }
  83       catch (...)
  84         {
  85           VERIFY( false );
  86         }
  87     }
  88   catch (const std::system_error& e)
  89     {
  90       VERIFY( false );
  91     }
  92   catch (...)
  93     {
  94       VERIFY( false );
  95     }
  96 }
  97
  98 int main()
  99 {
 100   test01();
 101   test02();
 102 }