ceph/src/boost/libs/thread/test/sync/mutual_exclusion/locks/nested_strict_lock/make_nested_strict_lock_pass.cpp

   1 // Copyright (C) 2011 Vicente J. Botet Escriba
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 // <boost/thread/strict_lock.hpp>
   7
   8 // template <class Lockable>
   9 // strict_lock<Lockable> make_strict_lock(Lockable &);
  10
  11 #define BOOST_THREAD_VERSION 4
  12
  13 #include <boost/thread/lock_types.hpp>
  14 #include <boost/thread/strict_lock.hpp>
  15 #include <boost/thread/mutex.hpp>
  16 #include <boost/thread/thread.hpp>
  17
  18 #include <boost/detail/lightweight_test.hpp>
  19 #include "../../../../timming.hpp"
  20
  21 #ifdef BOOST_THREAD_USES_CHRONO
  22 typedef boost::chrono::high_resolution_clock Clock;
  23 typedef Clock::time_point time_point;
  24 typedef Clock::duration duration;
  25 typedef boost::chrono::milliseconds ms;
  26 typedef boost::chrono::nanoseconds ns;
  27 time_point t0;
  28 time_point t1;
  29 #endif
  30
  31 boost::mutex m;
  32
  33 #if ! defined(BOOST_NO_CXX11_AUTO_DECLARATIONS) && ! defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && ! defined BOOST_THREAD_NO_MAKE_NESTED_STRICT_LOCK && defined BOOST_THREAD_USES_CHRONO
  34
  35 const ms max_diff(BOOST_THREAD_TEST_TIME_MS);
  36
  37 void f()
  38 {
  39   t0 = Clock::now();
  40   boost::unique_lock<boost::mutex> lg(m);
  41   {
  42     const auto&& nlg = boost::make_nested_strict_lock(lg); (void)nlg;
  43     t1 = Clock::now();
  44   }
  45 }
  46 #endif
  47
  48 int main()
  49 {
  50
  51 #if ! defined(BOOST_NO_CXX11_AUTO_DECLARATIONS) && ! defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && ! defined BOOST_THREAD_NO_MAKE_NESTED_STRICT_LOCK && defined BOOST_THREAD_USES_CHRONO
  52   {
  53     m.lock();
  54     boost::thread t(f);
  55     time_point t2 = Clock::now();
  56     boost::this_thread::sleep_for(ms(250));
  57     time_point t3 = Clock::now();
  58     m.unlock();
  59     t.join();
  60
  61     ns sleep_time = t3 - t2;
  62     ns d_ns = t1 - t0 - sleep_time;
  63     ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns);
  64     // BOOST_TEST_GE(d_ms.count(), 0);
  65     BOOST_THREAD_TEST_IT(d_ms, max_diff);
  66     BOOST_THREAD_TEST_IT(d_ns, ns(max_diff));
  67   }
  68 #endif
  69   return boost::report_errors();
  70 }