ceph/src/boost/libs/thread/test/sync/mutual_exclusion/locks/unique_lock/cons/time_point_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/locks.hpp>
  16
  17 // template <class Mutex> class unique_lock;
  18
  19 // template <class Clock, class Duration>
  20 //   unique_lock(mutex_type& m, const chrono::time_point<Clock, Duration>& abs_time);
  21
  22 #define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
  23
  24 #include <boost/thread/lock_types.hpp>
  25 #include <boost/thread/mutex.hpp>
  26 #include <boost/thread/thread.hpp>
  27 #include <boost/detail/lightweight_test.hpp>
  28 #include "../../../../../timming.hpp"
  29
  30 #if defined BOOST_THREAD_USES_CHRONO
  31
  32 boost::timed_mutex m;
  33
  34 typedef boost::chrono::high_resolution_clock Clock;
  35 typedef Clock::time_point time_point;
  36 typedef Clock::duration duration;
  37 typedef boost::chrono::milliseconds ms;
  38 typedef boost::chrono::nanoseconds ns;
  39 time_point t0;
  40 time_point t1;
  41
  42 const ms max_diff(BOOST_THREAD_TEST_TIME_MS);
  43
  44 void f1()
  45 {
  46   t0 = Clock::now();
  47   boost::unique_lock<boost::timed_mutex> lk(m, Clock::now() + ms(750));
  48   BOOST_TEST(lk.owns_lock() == true);
  49   t1 = Clock::now();
  50 }
  51
  52 void f2()
  53 {
  54   t0 = Clock::now();
  55   boost::unique_lock<boost::timed_mutex> lk(m, Clock::now() + ms(250));
  56   BOOST_TEST(lk.owns_lock() == false);
  57   t1 = Clock::now();
  58   ns d = t1 - t0 - ms(250);
  59   BOOST_TEST(d < max_diff);
  60 }
  61
  62 int main()
  63 {
  64   {
  65     m.lock();
  66     boost::thread t(f1);
  67     time_point t2 = Clock::now();
  68     boost::this_thread::sleep_for(ms(250));
  69     time_point t3 = Clock::now();
  70     m.unlock();
  71     t.join();
  72
  73     ns sleep_time = t3 - t2;
  74     ns d_ns = t1 - t0 - sleep_time;
  75     ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns);
  76     // BOOST_TEST_GE(d_ms.count(), 0);
  77     BOOST_THREAD_TEST_IT(d_ms, max_diff);
  78     BOOST_THREAD_TEST_IT(d_ns, ns(max_diff));
  79   }
  80   {
  81     m.lock();
  82     boost::thread t(f2);
  83     boost::this_thread::sleep_for(ms(750));
  84     m.unlock();
  85     t.join();
  86   }
  87
  88   return boost::report_errors();
  89 }
  90
  91 #else
  92 #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
  93 #endif