ceph/src/boost/libs/thread/test/sync/futures/when_all/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 // template <class T, class Ts>
  18 // future<tuple<T>> when_all(T&&);
  19
  20 #include <boost/config.hpp>
  21
  22 #if ! defined  BOOST_NO_CXX11_DECLTYPE
  23 #define BOOST_RESULT_OF_USE_DECLTYPE
  24 #endif
  25
  26
  27 #define BOOST_THREAD_VERSION 4
  28
  29 #include <boost/thread/future.hpp>
  30 #include <boost/detail/lightweight_test.hpp>
  31 #include <stdexcept>
  32
  33 int p1()
  34 {
  35   return 123;
  36 }
  37
  38 int thr()
  39 {
  40   throw std::logic_error("123");
  41 }
  42
  43 int main()
  44 {
  45 #if defined BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY
  46   if (0) // todo not yet implemented
  47   { // invalid future copy-constructible
  48     boost::future<int> f1;
  49     BOOST_TEST(! f1.valid());
  50     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(boost::move(f1));
  51     BOOST_TEST(! f1.valid());
  52     BOOST_TEST(all.valid());
  53     boost::csbl::tuple<boost::future<int> > res = all.get();
  54     BOOST_TEST(boost::csbl::get<0>(res).valid());
  55     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  56     // has exception
  57     //BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  58   }
  59   { // is_ready future copy-constructible
  60     boost::future<int> f1 = boost::make_ready_future(123);
  61     BOOST_TEST(f1.valid());
  62     BOOST_TEST(f1.is_ready());
  63     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(boost::move(f1));
  64     BOOST_TEST(! f1.valid());
  65     BOOST_TEST(all.valid());
  66     if (0) // todo FAILS not yet implemented
  67     BOOST_TEST(all.is_ready());
  68     boost::csbl::tuple<boost::future<int> > res = all.get();
  69     BOOST_TEST(boost::csbl::get<0>(res).valid());
  70     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  71     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  72   }
  73   { // is_ready shared_future copy-constructible
  74     boost::shared_future<int> f1 = boost::make_ready_future(123).share();
  75     BOOST_TEST(f1.valid());
  76     BOOST_TEST(f1.is_ready());
  77     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_all(f1);
  78     BOOST_TEST(f1.valid());
  79     BOOST_TEST(all.valid());
  80     if (0) // todo FAILS not yet implemented
  81     BOOST_TEST(all.is_ready());
  82     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
  83     BOOST_TEST(boost::csbl::get<0>(res).valid());
  84     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  85     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  86   }
  87   { // packaged_task future copy-constructible
  88     boost::packaged_task<int()> pt1(&p1);
  89     boost::future<int> f1 = pt1.get_future();
  90     BOOST_TEST(f1.valid());
  91     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(boost::move(f1));
  92     BOOST_TEST(! f1.valid());
  93     BOOST_TEST(all.valid());
  94     pt1();
  95     boost::csbl::tuple<boost::future<int> > res = all.get();
  96     BOOST_TEST(boost::csbl::get<0>(res).valid());
  97     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
  98     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
  99   }
 100   { // packaged_task shared_future copy-constructible
 101     boost::packaged_task<int()> pt1(&p1);
 102     boost::shared_future<int> f1 = pt1.get_future().share();
 103     BOOST_TEST(f1.valid());
 104     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_all(f1);
 105     BOOST_TEST(f1.valid());
 106     BOOST_TEST(all.valid());
 107     pt1();
 108     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
 109     BOOST_TEST(boost::csbl::get<0>(res).valid());
 110     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 111     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 112   }
 113   { // packaged_task future copy-constructible
 114     boost::packaged_task<int()> pt1(&thr);
 115     boost::future<int> f1 = pt1.get_future();
 116     BOOST_TEST(f1.valid());
 117     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(boost::move(f1));
 118     BOOST_TEST(! f1.valid());
 119     BOOST_TEST(all.valid());
 120     pt1();
 121     boost::csbl::tuple<boost::future<int> > res = all.get();
 122     BOOST_TEST(boost::csbl::get<0>(res).valid());
 123     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 124     try {
 125       boost::csbl::get<0>(res).get();
 126       BOOST_TEST(false);
 127     } catch (std::logic_error& ex) {
 128       BOOST_TEST(ex.what() == std::string("123"));
 129     } catch (...) {
 130       BOOST_TEST(false);
 131     }
 132   }
 133   { // async future copy-constructible
 134     boost::future<int> f1 = boost::async(boost::launch::async, &p1);
 135     BOOST_TEST(f1.valid());
 136     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(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   { // async shared_future copy-constructible
 145     boost::shared_future<int> f1 = boost::async(boost::launch::async, &p1).share();
 146     BOOST_TEST(f1.valid());
 147     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_all(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 #if defined BOOST_THREAD_PROVIDES_VARIADIC_THREAD
 156   // fixme darwin-4.8.0_11 terminate called without an active exception
 157   { // deferred future copy-constructible
 158     boost::future<int> f1 = boost::async(boost::launch::deferred, &p1);
 159     boost::future<boost::csbl::tuple<boost::future<int> > > all = boost::when_all(boost::move(f1));
 160     BOOST_TEST(! f1.valid());
 161     BOOST_TEST(all.valid());
 162     boost::csbl::tuple<boost::future<int> > res = all.get();
 163     BOOST_TEST(boost::csbl::get<0>(res).valid());
 164     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 165     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 166   }
 167   // fixme darwin-4.8.0_11 terminate called without an active exception
 168   { // deferred shared_future copy-constructible
 169     boost::shared_future<int> f1 = boost::async(boost::launch::deferred, &p1).share();
 170     boost::future<boost::csbl::tuple<boost::shared_future<int> > > all = boost::when_all(f1);
 171     BOOST_TEST(f1.valid());
 172     BOOST_TEST(all.valid());
 173     boost::csbl::tuple<boost::shared_future<int> > res = all.get();
 174     BOOST_TEST(boost::csbl::get<0>(res).valid());
 175     BOOST_TEST(boost::csbl::get<0>(res).is_ready());
 176     BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
 177   }
 178 #endif
 179 #endif
 180   return boost::report_errors();
 181 }
 182