ceph/src/boost/libs/thread/test/sync/mutual_exclusion/recursive_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/recursive_mutex.hpp>
  16
  17 // class recursive_mutex;
  18
  19 // void lock();
  20
  21 #include <boost/thread/recursive_mutex.hpp>
  22 #include <boost/thread/thread.hpp>
  23 #include <boost/detail/lightweight_test.hpp>
  24
  25
  26 boost::recursive_mutex m;
  27
  28 #if defined BOOST_THREAD_USES_CHRONO
  29 typedef boost::chrono::system_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 #else
  35 #endif
  36
  37 void f()
  38 {
  39 #if defined BOOST_THREAD_USES_CHRONO
  40   time_point t0 = Clock::now();
  41   m.lock();
  42   time_point t1 = Clock::now();
  43   m.lock();
  44   m.unlock();
  45   m.unlock();
  46   ns d = t1 - t0 - ms(250);
  47   // This test is spurious as it depends on the time the thread system switches the threads
  48   BOOST_TEST(d < ns(2500000)+ms(1000)); // within 2.5ms
  49 #else
  50   //time_point t0 = Clock::now();
  51   m.lock();
  52   //time_point t1 = Clock::now();
  53   m.lock();
  54   m.unlock();
  55   m.unlock();
  56   //ns d = t1 - t0 - ms(250);
  57   // This test is spurious as it depends on the time the thread system switches the threads
  58   //BOOST_TEST(d < ns(2500000)+ms(1000)); // within 2.5ms
  59 #endif
  60 }
  61
  62 int main()
  63 {
  64   m.lock();
  65   boost::thread t(f);
  66 #if defined BOOST_THREAD_USES_CHRONO
  67   boost::this_thread::sleep_for(ms(250));
  68 #else
  69 #endif
  70   m.unlock();
  71   t.join();
  72
  73   return boost::report_errors();
  74 }
  75
  76