libstdc++-v3/testsuite/30_threads/thread/cons/3.cc

   1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } }
   2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
   3 // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
   4 // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7
   8 // Copyright (C) 2008-2013 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
  26 #include <functional> // std::unary_function, std::ref
  27 #include <thread>
  28 #include <system_error>
  29 #include <testsuite_hooks.h>
  30
  31 struct copyable : public std::unary_function<std::thread::id&, void>
  32 {
  33   copyable() = default;
  34   ~copyable() = default;
  35   copyable(const copyable& c)
  36   { ++copy_count; }
  37
  38   void operator()(std::thread::id& id) const
  39   {
  40     id = std::this_thread::get_id();
  41   }
  42
  43   static int copy_count;
  44 };
  45
  46 int copyable::copy_count = 0;
  47
  48 // same as 2, but function is copyable function object
  49 // thread variadic cons not copied when std::ref
  50 // thread variadic cons copied when not std::ref
  51 // no errors
  52 void test03()
  53 {
  54   bool test __attribute__((unused)) = true;
  55
  56   try
  57     {
  58       std::thread::id t1_id1;
  59       copyable c1;
  60       std::thread t1(std::ref(c1), std::ref(t1_id1));
  61       std::thread::id t1_id2 = t1.get_id();
  62       VERIFY( t1.joinable() );
  63       t1.join();
  64       VERIFY( !t1.joinable() );
  65       VERIFY( t1_id1 == t1_id2 );
  66       VERIFY( copyable::copy_count == 0 );
  67
  68       std::thread::id t2_id1;
  69       copyable c2;
  70       std::thread t2(c2, std::ref(t2_id1));
  71       std::thread::id t2_id2 = t2.get_id();
  72       VERIFY( t2.joinable() );
  73       t2.join();
  74       VERIFY( !t2.joinable() );
  75       VERIFY( t2_id1 == t2_id2 );
  76       VERIFY( copyable::copy_count > 0 );
  77     }
  78   catch (const std::system_error&)
  79     {
  80       VERIFY( false );
  81     }
  82   catch (...)
  83     {
  84       VERIFY( false );
  85     }
  86 }
  87
  88 int main()
  89 {
  90   test03();
  91   return 0;
  92 }