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 shared_lock;
19 // explicit shared_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 boost::shared_mutex m;
29 #if defined BOOST_THREAD_USES_CHRONO
30 typedef boost::chrono::system_clock Clock;
31 typedef Clock::time_point time_point;
32 typedef Clock::duration duration;
33 typedef boost::chrono::milliseconds ms;
34 typedef boost::chrono::nanoseconds ns;
40 #if defined BOOST_THREAD_USES_CHRONO
41 time_point t0 = Clock::now();
44 boost::shared_lock<boost::shared_mutex> ul(m);
47 ns d = t1 - t0 - ms(250);
48 // This test is spurious as it depends on the time the thread system switches the threads
49 BOOST_TEST(d < ns(2500000)+ms(2000)); // within 2.5ms
51 //time_point t0 = Clock::now();
54 boost::shared_lock<boost::shared_mutex> ul(m);
57 //ns d = t1 - t0 - ms(250);
58 // This test is spurious as it depends on the time the thread system switches the threads
59 //BOOST_TEST(d < ns(2500000)+ms(1000)); // within 2.5ms
67 #if defined BOOST_THREAD_USES_CHRONO
68 boost::this_thread::sleep_for(ms(250));
74 return boost::report_errors();