ceph/src/boost/libs/thread/test/sync/mutual_exclusion/timed_mutex/lock_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/timed_mutex.hpp>
  16
  17 // class timed_mutex;
  18
  19 // void lock();
  20
  21 #include <boost/thread/mutex.hpp>
  22 #include <boost/thread/thread.hpp>
  23 #include <boost/detail/lightweight_test.hpp>
  24 #include "../../../timming.hpp"
  25
  26 boost::timed_mutex m;
  27
  28 #if defined BOOST_THREAD_USES_CHRONO
  29 typedef boost::chrono::high_resolution_clock Clock;
  30 typedef Clock::time_point time_point;
  31 typedef Clock::duration duration;
  32 typedef boost::chrono::milliseconds ms;
  33 typedef boost::chrono::nanoseconds ns;
  34 time_point t0;
  35 time_point t1;
  36 #else
  37 #endif
  38
  39 const ms max_diff(BOOST_THREAD_TEST_TIME_MS);
  40
  41 void f()
  42 {
  43 #if defined BOOST_THREAD_USES_CHRONO
  44   t0 = Clock::now();
  45   m.lock();
  46   t1 = Clock::now();
  47   m.unlock();
  48 #else
  49   //time_point t0 = Clock::now();
  50   m.lock();
  51   //time_point t1 = Clock::now();
  52   m.unlock();
  53   //ns d = t1 - t0 - ms(250);
  54   //BOOST_TEST(d < max_diff);
  55 #endif
  56 }
  57
  58 int main()
  59 {
  60   m.lock();
  61   boost::thread t(f);
  62 #if defined BOOST_THREAD_USES_CHRONO
  63   time_point t2 = Clock::now();
  64   boost::this_thread::sleep_for(ms(250));
  65   time_point t3 = Clock::now();
  66 #else
  67 #endif
  68   m.unlock();
  69   t.join();
  70
  71 #if defined BOOST_THREAD_USES_CHRONO
  72   ns sleep_time = t3 - t2;
  73   ns d_ns = t1 - t0 - sleep_time;
  74   ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns);
  75   // BOOST_TEST_GE(d_ms.count(), 0);
  76   BOOST_THREAD_TEST_IT(d_ms, max_diff);
  77   BOOST_THREAD_TEST_IT(d_ns, ns(max_diff));
  78 #endif
  79
  80   return boost::report_errors();
  81 }
  82
  83