ceph/src/boost/libs/thread/test/sync/futures/promise/set_value_at_thread_exit_void_pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // Copyright (C) 2011 Vicente J. Botet Escriba
  11 //
  12 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
  13 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  14
  15 // <boost/thread/future.hpp>
  16
  17 // class promise<R>
  18
  19 // void promise<void>::set_value_at_thread_exit();
  20
  21 #define BOOST_THREAD_VERSION 4
  22
  23 #include <boost/thread/future.hpp>
  24 #include <boost/detail/lightweight_test.hpp>
  25
  26 int i = 0;
  27
  28 boost::promise<void> p;
  29 void func()
  30 {
  31   p.set_value_at_thread_exit();
  32   i = 1;
  33 }
  34
  35 //void func2_mv(BOOST_THREAD_RV_REF(boost::promise<void>) p2)
  36 void func2_mv(boost::promise<void> p2)
  37 {
  38   p2.set_value_at_thread_exit();
  39   i = 2;
  40 }
  41
  42 void func2(boost::promise<void> *p2)
  43 {
  44   p2->set_value_at_thread_exit();
  45   i = 2;
  46 }
  47 int main()
  48 {
  49   try
  50   {
  51     boost::future<void> f = p.get_future();
  52     boost::thread(func).detach();
  53     f.get();
  54     BOOST_TEST(i == 1);
  55
  56   }
  57   catch(std::exception& )
  58   {
  59     BOOST_TEST(false);
  60   }
  61   catch(...)
  62   {
  63     BOOST_TEST(false);
  64   }
  65
  66   try
  67   {
  68     boost::promise<void> p2;
  69     boost::future<void> f = p2.get_future();
  70     p = boost::move(p2);
  71     boost::thread(func).detach();
  72     f.get();
  73     BOOST_TEST(i == 1);
  74
  75   }
  76   catch(std::exception& ex)
  77   {
  78     std::cout << __FILE__ << ":" << __LINE__ << " " << ex.what() << std::endl;
  79     BOOST_TEST(false);
  80   }
  81   catch(...)
  82   {
  83     BOOST_TEST(false);
  84   }
  85
  86   try
  87   {
  88     boost::promise<void> p2;
  89     boost::future<void> f = p2.get_future();
  90 #if defined BOOST_THREAD_PROVIDES_VARIADIC_THREAD
  91     boost::thread(func2_mv, boost::move(p2)).detach();
  92 #else
  93     boost::thread(func2, &p2).detach();
  94 #endif
  95     f.wait();
  96     f.get();
  97     BOOST_TEST(i == 2);
  98   }
  99   catch(std::exception& ex)
 100   {
 101     std::cout << __FILE__ << ":" << __LINE__ << " " << ex.what() << std::endl;
 102     BOOST_TEST(false);
 103   }
 104   catch(...)
 105   {
 106     BOOST_TEST(false);
 107   }
 108   return boost::report_errors();
 109 }
 110