libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/2.cc

   1 // { dg-do run }
   2 // { dg-options "-pthread"  }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-effective-target pthread }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7
   8 // Copyright (C) 2015-2018 Free Software Foundation, Inc.
   9 //
  10 // This file is part of the GNU ISO C++ Library.  This library is free
  11 // software; you can redistribute it and/or modify it under the
  12 // terms of the GNU General Public License as published by the
  13 // Free Software Foundation; either version 3, or (at your option)
  14 // any later version.
  15
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20
  21 // You should have received a copy of the GNU General Public License along
  22 // with this library; see the file COPYING3.  If not see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 #include <mutex>
  26 #include <thread>
  27
  28 using mutex_type = std::recursive_timed_mutex;
  29
  30 mutex_type m;
  31
  32 void f()
  33 {
  34   std::lock_guard<mutex_type> l(m);
  35 }
  36
  37 int main()
  38 {
  39   std::thread t1(f);
  40   std::thread t2(f);
  41   t1.join();
  42   t2.join();
  43 }