ceph/src/boost/libs/chrono/stopwatches/test/stopwatch/simple_stopwatch_pass.cpp

   1 //  Copyright 2010-2011 Vicente J. Botet Escriba
   2 //  Distributed under the Boost Software License, Version 1.0.
   3 //  See http://www.boost.org/LICENSE_1_0.txt
   4
   5 #define BOOST_CHRONO_VERSION 2
   6
   7 #include <iostream>
   8 #include <boost/type_traits/is_same.hpp>
   9 #include <boost/chrono/stopwatches/strict_stopwatch.hpp>
  10 #include "../cycle_count.hpp"
  11 #include <boost/detail/lightweight_test.hpp>
  12
  13 #if !defined(BOOST_NO_CXX11_STATIC_ASSERT)
  14 #define NOTHING ""
  15 #endif
  16
  17
  18 template <typename Stopwatch>
  19 void check_invariants()
  20 {
  21     BOOST_CHRONO_STATIC_ASSERT((boost::is_same<typename Stopwatch::rep, typename Stopwatch::clock::duration::rep>::value), NOTHING, ());
  22     BOOST_CHRONO_STATIC_ASSERT((boost::is_same<typename Stopwatch::period, typename Stopwatch::clock::duration::period>::value), NOTHING, ());
  23     BOOST_CHRONO_STATIC_ASSERT((boost::is_same<typename Stopwatch::duration, typename Stopwatch::clock::time_point::duration>::value), NOTHING, ());
  24     BOOST_CHRONO_STATIC_ASSERT(Stopwatch::is_steady == Stopwatch::clock::is_steady, NOTHING, ());
  25 }
  26
  27 template <typename Stopwatch>
  28 void check_default_constructor()
  29 {
  30   Stopwatch _;
  31 }
  32
  33 #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
  34 template <typename Stopwatch>
  35 void check_constructor_ec()
  36 {
  37   boost::system::error_code ec;
  38   Stopwatch _(ec);
  39   BOOST_TEST(ec.value()==0);
  40 }
  41
  42 template <typename Stopwatch>
  43 void check_constructor_throws()
  44 {
  45   Stopwatch _(boost::throws());
  46 }
  47 #endif
  48
  49 template <typename Stopwatch>
  50 void check_elapsed(bool check=true)
  51 {
  52   Stopwatch sw;
  53   ex::sleep_for<typename Stopwatch::clock>(boost::chrono::milliseconds(100));
  54   typename Stopwatch::duration d=sw.elapsed();
  55   if (check)
  56     BOOST_TEST(d >= boost::chrono::milliseconds(100));
  57 }
  58
  59 template <typename Clock>
  60 void check_all(bool check=true)
  61 {
  62   typedef boost::chrono::strict_stopwatch<Clock> Stopwatch;
  63   check_invariants<Stopwatch>();
  64   check_default_constructor<Stopwatch>();
  65 #if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
  66   check_constructor_ec<Stopwatch>();
  67   check_constructor_throws<Stopwatch>();
  68 #endif
  69   check_elapsed<Stopwatch>(check);
  70 }
  71
  72
  73 int main()
  74 {
  75   std::cout << "cycle_count=";
  76   check_all<ex::cycle_count<1500> >(true);
  77
  78   return boost::report_errors();
  79 }