ceph/src/boost/libs/thread/test/sync/futures/shared_future/wait_for_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) 2013 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 shared_future<R>
  18
  19 // template <class Rep, class Period>
  20 //   future_status
  21 //   wait_for(const chrono::duration<Rep, Period>& rel_time) const;
  22
  23 #define BOOST_THREAD_VERSION 4
  24 //#define BOOST_THREAD_USES_LOG
  25 #define BOOST_THREAD_USES_LOG_THREAD_ID
  26 #include <boost/thread/detail/log.hpp>
  27
  28 #include <boost/thread/future.hpp>
  29 #include <boost/thread/thread.hpp>
  30 #include <boost/chrono/chrono_io.hpp>
  31 #include <boost/detail/lightweight_test.hpp>
  32
  33 #if defined BOOST_THREAD_USES_CHRONO
  34
  35 #ifdef BOOST_MSVC
  36 #pragma warning(disable: 4127) // conditional expression is constant
  37 #endif
  38
  39 typedef boost::chrono::milliseconds ms;
  40
  41 namespace boost
  42 {
  43   template <typename OStream>
  44   OStream& operator<<(OStream& os , boost::future_status st )
  45   {
  46     os << underlying_cast<int>(st) << " ";
  47     return os;
  48   }
  49   template <typename T>
  50   struct wrap
  51   {
  52     wrap(T const& v) :
  53       value(v)
  54     {
  55     }
  56     T value;
  57
  58   };
  59
  60   template <typename T>
  61   exception_ptr make_exception_ptr(T v)
  62   {
  63     return copy_exception(wrap<T> (v));
  64   }
  65 }
  66
  67 void func1(boost::promise<int> p)
  68 {
  69   boost::this_thread::sleep_for(ms(500));
  70   p.set_value(3);
  71 }
  72
  73 int j = 0;
  74
  75 void func3(boost::promise<int&> p)
  76 {
  77   boost::this_thread::sleep_for(ms(500));
  78   j = 5;
  79   p.set_value(j);
  80 }
  81
  82 void func5(boost::promise<void> p)
  83 {
  84   boost::this_thread::sleep_for(ms(500));
  85   p.set_value();
  86 }
  87
  88 int main()
  89 {
  90   BOOST_THREAD_LOG << BOOST_THREAD_END_LOG;
  91   {
  92     typedef boost::chrono::high_resolution_clock Clock;
  93     {
  94       typedef int T;
  95       boost::promise<T> p;
  96       boost::shared_future<T> f((p.get_future()));
  97 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
  98       boost::thread(func1, boost::move(p)).detach();
  99 #endif
 100       BOOST_TEST(f.valid());
 101       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::timeout);
 102 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 103 #else
 104       func1(boost::move(p));
 105 #endif
 106       BOOST_TEST(f.valid());
 107       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::ready);
 108       BOOST_TEST(f.valid());
 109       Clock::time_point t0 = Clock::now();
 110       f.wait();
 111       Clock::time_point t1 = Clock::now();
 112       BOOST_TEST(f.valid());
 113       BOOST_TEST(t1 - t0 < ms(50));
 114     }
 115     {
 116       typedef int& T;
 117       boost::promise<T> p;
 118       boost::shared_future<T> f((p.get_future()));
 119 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 120       boost::thread(func3, boost::move(p)).detach();
 121 #endif
 122       BOOST_TEST(f.valid());
 123       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::timeout);
 124       BOOST_TEST(f.valid());
 125 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 126 #else
 127       func3(boost::move(p));
 128 #endif
 129       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::ready);
 130       BOOST_TEST(f.valid());
 131       Clock::time_point t0 = Clock::now();
 132       f.wait();
 133       Clock::time_point t1 = Clock::now();
 134       BOOST_TEST(f.valid());
 135       BOOST_TEST(t1 - t0 < ms(50));
 136     }
 137     {
 138       typedef void T;
 139       boost::promise<T> p;
 140       boost::shared_future<T> f((p.get_future()));
 141 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 142       boost::thread(func5, boost::move(p)).detach();
 143 #endif
 144       BOOST_TEST(f.valid());
 145       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::timeout);
 146       BOOST_TEST(f.valid());
 147 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
 148 #else
 149       func5(boost::move(p));
 150 #endif
 151       BOOST_TEST_EQ(f.wait_for(ms(300)) , boost::future_status::ready);
 152       BOOST_TEST(f.valid());
 153       Clock::time_point t0 = Clock::now();
 154       f.wait();
 155       Clock::time_point t1 = Clock::now();
 156       BOOST_TEST(f.valid());
 157       BOOST_TEST(t1 - t0 < ms(50));
 158     }
 159   }
 160   BOOST_THREAD_LOG << BOOST_THREAD_END_LOG;
 161
 162   return boost::report_errors();
 163 }
 164
 165 #else
 166 #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
 167 #endif