ceph/src/boost/libs/thread/test/sync/futures/when_any/one_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) 2014 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 // future<tuple<T>> when_any(T&&);
  18
  19 #include <boost/config.hpp>
  20
  21 #if ! defined  BOOST_NO_CXX11_DECLTYPE
  22 #define BOOST_RESULT_OF_USE_DECLTYPE
  23 #endif
  24
  25
  26 #define BOOST_THREAD_VERSION 4
  27
  28 #include <boost/thread/future.hpp>
  29 #include <boost/detail/lightweight_test.hpp>
  30
  31 #ifdef BOOST_MSVC
  32 #pragma warning(disable: 4127) // conditional expression is constant
  33 #endif
  34
  35 int p1()
  36 {
  37   return 123;
  38 }
  39
  40 int main()
  41 {
  42 #if defined BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY
  43   if (0) // todo not yet implemented
  44   { // invalid future copy-constructible
  45     boost::future<int> f1;
  46     BOOST_TEST(! f1.valid());
  47     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_any(boost::move(f1));
  48     BOOST_TEST(! f1.valid());
  49     BOOST_TEST(all.valid());
  50     boost::csbl::tuple<boost::future<int> > res = all.get();
  51     BOOST_TEST(boost::csbl::get<0>(res).valid());
  52     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  53     // has exception
  54     //BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  55   }
  56   { // is_ready future copy-constructible
  57     boost::future<int> f1 = boost::make_ready_future(123);
  58     BOOST_TEST(f1.valid());
  59     BOOST_TEST(f1.is_ready());
  60     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_any(boost::move(f1));
  61     BOOST_TEST(! f1.valid());
  62     BOOST_TEST(all.valid());
  63     if (0) // todo FAILS not yet implemented
  64     BOOST_TEST(all.is_ready());
  65     boost::csbl::tuple<boost::future<int> > res = all.get();
  66     BOOST_TEST(boost::csbl::get<0>(res).valid());
  67     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  68     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  69   }
  70   { // is_ready shared_future copy-constructible
  71     boost::shared_future<int> f1 = boost::make_ready_future(123).share();
  72     BOOST_TEST(f1.valid());
  73     BOOST_TEST(f1.is_ready());
  74     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_any(f1);
  75     BOOST_TEST(f1.valid());
  76     BOOST_TEST(all.valid());
  77     if (0) // todo FAILS not yet implemented
  78     BOOST_TEST(all.is_ready());
  79     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
  80     BOOST_TEST(boost::csbl::get<0>(res).valid());
  81     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  82     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  83   }
  84   { // packaged_task future copy-constructible
  85     boost::packaged_task<int()> pt1(&p1);
  86     boost::future<int> f1 = pt1.get_future();
  87     BOOST_TEST(f1.valid());
  88     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_any(boost::move(f1));
  89     BOOST_TEST(! f1.valid());
  90     BOOST_TEST(all.valid());
  91     pt1();
  92     boost::csbl::tuple<boost::future<int> > res = all.get();
  93     BOOST_TEST(boost::csbl::get<0>(res).valid());
  94     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  95     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  96   }
  97   { // packaged_task shared_future copy-constructible
  98     boost::packaged_task<int()> pt1(&p1);
  99     boost::shared_future<int> f1 = pt1.get_future().share();
 100     BOOST_TEST(f1.valid());
 101     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_any(f1);
 102     BOOST_TEST(f1.valid());
 103     BOOST_TEST(all.valid());
 104     pt1();
 105     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
 106     BOOST_TEST(boost::csbl::get<0>(res).valid());
 107     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 108     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 109   }
 110   { // async future copy-constructible
 111     boost::future<int> f1 = boost::async(boost::launch::async, &p1);
 112     BOOST_TEST(f1.valid());
 113     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_any(boost::move(f1));
 114     BOOST_TEST(! f1.valid());
 115     BOOST_TEST(all.valid());
 116     boost::csbl::tuple<boost::future<int> > res = all.get();
 117     BOOST_TEST(boost::csbl::get<0>(res).valid());
 118     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 119     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 120   }
 121   { // async shared_future copy-constructible
 122     boost::shared_future<int> f1 = boost::async(boost::launch::async, &p1).share();
 123     BOOST_TEST(f1.valid());
 124     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_any(f1);
 125     BOOST_TEST(f1.valid());
 126     BOOST_TEST(all.valid());
 127     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
 128     BOOST_TEST(boost::csbl::get<0>(res).valid());
 129     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 130     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 131   }
 132 #if defined BOOST_THREAD_PROVIDES_VARIADIC_THREAD
 133   // fixme darwin-4.8.0_11 terminate called without an active exception
 134   { // deferred future copy-constructible
 135     boost::future<int> f1 = boost::async(boost::launch::deferred, &p1);
 136     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_any(boost::move(f1));
 137     BOOST_TEST(! f1.valid());
 138     BOOST_TEST(all.valid());
 139     boost::csbl::tuple<boost::future<int> > res = all.get();
 140     BOOST_TEST(boost::csbl::get<0>(res).valid());
 141     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 142     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 143   }
 144   // fixme darwin-4.8.0_11 terminate called without an active exception
 145   { // deferred shared_future copy-constructible
 146     boost::shared_future<int> f1 = boost::async(boost::launch::deferred, &p1).share();
 147     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_any(f1);
 148     BOOST_TEST(f1.valid());
 149     BOOST_TEST(all.valid());
 150     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
 151     BOOST_TEST(boost::csbl::get<0>(res).valid());
 152     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 153     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 154   }
 155 #endif
 156 #endif
 157   return boost::report_errors();
 158 }
 159