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