1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Copyright (C) 2011 Vicente J. Botet Escriba
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)
15 // <boost/thread/locks.hpp>
17 // template <class Mutex> class upgrade_lock;
19 // explicit upgrade_lock(Mutex& m);
22 #include <boost/thread/lock_types.hpp>
23 #include <boost/thread/shared_mutex.hpp>
24 #include <boost/thread/thread.hpp>
25 #include <boost/detail/lightweight_test.hpp>
27 #include "../../../../../timming.hpp"
29 boost::shared_mutex m
;
31 #if defined BOOST_THREAD_USES_CHRONO
32 typedef boost::chrono::high_resolution_clock Clock
;
33 typedef Clock::time_point time_point
;
34 typedef Clock::duration duration
;
35 typedef boost::chrono::milliseconds ms
;
36 typedef boost::chrono::nanoseconds ns
;
42 const ms
max_diff(BOOST_THREAD_TEST_TIME_MS
);
46 #if defined BOOST_THREAD_USES_CHRONO
49 boost::upgrade_lock
<boost::shared_mutex
> ul(m
);
53 //time_point t0 = Clock::now();
56 boost::upgrade_lock
<boost::shared_mutex
> ul(m
);
59 //ns d = t1 - t0 - ms(250);
60 //BOOST_TEST(d < max_diff);
68 #if defined BOOST_THREAD_USES_CHRONO
69 time_point t2
= Clock::now();
70 boost::this_thread::sleep_for(ms(250));
71 time_point t3
= Clock::now();
77 #if defined BOOST_THREAD_USES_CHRONO
78 ns sleep_time
= t3
- t2
;
79 ns d_ns
= t1
- t0
- sleep_time
;
80 ms d_ms
= boost::chrono::duration_cast
<boost::chrono::milliseconds
>(d_ns
);
81 // BOOST_TEST_GE(d_ms.count(), 0);
82 BOOST_THREAD_TEST_IT(d_ms
, max_diff
);
83 BOOST_THREAD_TEST_IT(d_ns
, ns(max_diff
));
86 return boost::report_errors();