ceph/src/boost/libs/thread/test/sync/futures/async/async_executor_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 // template <class Executor, class F, class... Args>
  18 //     future<typename result_of<F(Args...)>::type>
  19 //     async(Executor& ex, F&& f, Args&&... args);
  20
  21 #define BOOST_THREAD_VERSION 5
  22 #include <boost/config.hpp>
  23 #if ! defined  BOOST_NO_CXX11_DECLTYPE
  24 #define BOOST_RESULT_OF_USE_DECLTYPE
  25 #endif
  26 #include <iostream>
  27 #include <boost/thread/future.hpp>
  28 #include <boost/thread/thread.hpp>
  29 #include <boost/thread/detail/memory.hpp>
  30 #include <boost/thread/csbl/memory/unique_ptr.hpp>
  31 #include <memory>
  32 #include <boost/detail/lightweight_test.hpp>
  33 #include <boost/thread/executors/basic_thread_pool.hpp>
  34 #include <boost/thread/executor.hpp>
  35
  36 typedef boost::chrono::high_resolution_clock Clock;
  37 typedef boost::chrono::milliseconds ms;
  38
  39 class A
  40 {
  41   long data_;
  42
  43 public:
  44   typedef long result_type;
  45
  46   explicit A(long i) :
  47     data_(i)
  48   {
  49   }
  50
  51   long doit() const
  52   {
  53     boost::this_thread::sleep_for(ms(200));
  54     return data_;
  55   }
  56   long operator()() const
  57   {
  58     boost::this_thread::sleep_for(ms(200));
  59     return data_;
  60   }
  61 };
  62
  63 class MoveOnly
  64 {
  65 public:
  66   typedef int result_type;
  67
  68   int value;
  69
  70 BOOST_THREAD_MOVABLE_ONLY(MoveOnly)
  71   MoveOnly()
  72   {
  73     value = 0;
  74   }
  75   MoveOnly( BOOST_THREAD_RV_REF(MoveOnly))
  76       {
  77         value = 1;
  78       }
  79       MoveOnly& operator=(BOOST_THREAD_RV_REF(MoveOnly))
  80       {
  81         value = 2;
  82         return *this;
  83       }
  84
  85       int operator()()
  86       {
  87         boost::this_thread::sleep_for(ms(200));
  88         return 3;
  89       }
  90       template <typename OS>
  91       friend OS& operator<<(OS& os, MoveOnly const& v)
  92       {
  93         os << v.value;
  94         return os;
  95       }
  96     };
  97
  98     namespace boost
  99     {
 100 BOOST_THREAD_DCL_MOVABLE    (MoveOnly)
 101   }
 102
 103 int f0()
 104 {
 105   boost::this_thread::sleep_for(ms(200));
 106   return 3;
 107 }
 108
 109 int i = 0;
 110
 111 int& f1()
 112 {
 113   boost::this_thread::sleep_for(ms(200));
 114   return i;
 115 }
 116
 117 void f2()
 118 {
 119   boost::this_thread::sleep_for(ms(200));
 120 }
 121
 122 boost::csbl::unique_ptr<int> f3_0()
 123 {
 124   boost::this_thread::sleep_for(ms(200));
 125   boost::csbl::unique_ptr<int> r( (new int(3)));
 126   return boost::move(r);
 127 }
 128 MoveOnly f3_1()
 129 {
 130   boost::this_thread::sleep_for(ms(200));
 131   MoveOnly r;
 132   return boost::move(r);
 133 }
 134
 135 boost::csbl::unique_ptr<int> f3(int i)
 136 {
 137   boost::this_thread::sleep_for(ms(200));
 138   return boost::csbl::unique_ptr<int>(new int(i));
 139 }
 140
 141 boost::csbl::unique_ptr<int> f4(
 142     BOOST_THREAD_RV_REF_BEG boost::csbl::unique_ptr<int> BOOST_THREAD_RV_REF_END p
 143 )
 144 {
 145   boost::this_thread::sleep_for(ms(200));
 146   return boost::move(p);
 147 }
 148
 149 struct check_timer {
 150   boost::chrono::nanoseconds delay;
 151   Clock::time_point start;
 152   check_timer(boost::chrono::nanoseconds delay)
 153   : delay(delay)
 154   , start(Clock::now())
 155   {
 156   }
 157   ~check_timer() {
 158     Clock::time_point now = Clock::now();
 159     BOOST_TEST(now - start < delay);
 160     std::cout << __FILE__ << "[" << __LINE__ << "] " << (now - start).count() << std::endl;
 161   }
 162
 163 };
 164
 165 int main()
 166 {
 167   std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
 168 #if defined BOOST_THREAD_PROVIDES_EXECUTORS
 169   {
 170     try
 171     {
 172       boost::executor_adaptor<boost::basic_thread_pool> ex(1);
 173       boost::future<int> f = boost::async(ex, &f0);
 174       boost::this_thread::sleep_for(ms(300));
 175       int res;
 176       {
 177         check_timer timer(ms(500));
 178         res = f.get();
 179       }
 180       BOOST_TEST(res == 3);
 181     }
 182     catch (std::exception& ex)
 183     {
 184       std::cout << __FILE__ << "[" << __LINE__ << "]" << ex.what() << std::endl;
 185       BOOST_TEST(false && "exception thrown");
 186     }
 187     catch (...)
 188     {
 189       BOOST_TEST(false && "exception thrown");
 190     }
 191   }
 192 #endif
 193 #if defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) && defined BOOST_THREAD_PROVIDES_EXECUTORS
 194   std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
 195   {
 196     try
 197     {
 198       boost::executor_adaptor<boost::basic_thread_pool> ex(1);
 199       boost::future<long> f = boost::async(ex, A(3));
 200       boost::this_thread::sleep_for(ms(300));
 201       int res;
 202       {
 203         check_timer timer(ms(500));
 204         res = f.get();
 205       }
 206       BOOST_TEST(res == 3);
 207     }
 208     catch (std::exception& ex)
 209     {
 210       std::cout << __FILE__ << "[" << __LINE__ << "]" << ex.what() << std::endl;
 211       BOOST_TEST(false && "exception thrown");
 212     }
 213     catch (...)
 214     {
 215       BOOST_TEST(false && "exception thrown");
 216     }
 217
 218   }
 219 #endif
 220 #if defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD) && defined BOOST_THREAD_PROVIDES_EXECUTORS
 221   std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
 222   {
 223     try
 224     {
 225       boost::executor_adaptor<boost::basic_thread_pool> ex(1);
 226       MoveOnly mo;
 227       boost::future<int> f = boost::async(ex, boost::move(mo));
 228       //boost::future<int> f = boost::async(ex, MoveOnly());
 229       boost::this_thread::sleep_for(ms(300));
 230       int res;
 231       {
 232         check_timer timer(ms(500));
 233         res = f.get();
 234       }
 235       BOOST_TEST(res == 3);
 236     }
 237     catch (std::exception& ex)
 238     {
 239       std::cout << __FILE__ << "[" << __LINE__ << "]" << ex.what() << std::endl;
 240       BOOST_TEST(false && "exception thrown");
 241     }
 242     catch (...)
 243     {
 244       BOOST_TEST(false && "exception thrown");
 245     }
 246   }
 247 #endif
 248
 249   return boost::report_errors();
 250 }