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;
21 #include <boost/thread/lock_types.hpp>
22 #include <boost/thread/shared_mutex.hpp>
23 #include <boost/thread/thread.hpp>
24 #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 boost::upgrade_lock < boost::shared_mutex > lk(m, boost::defer_lock);
42 time_point t0 = Clock::now();
44 time_point t1 = Clock::now();
45 BOOST_TEST(lk.owns_lock() == true);
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
54 catch (boost::system::system_error& e)
56 BOOST_TEST(e.code().value() == boost::system::errc::resource_deadlock_would_occur);
65 catch (boost::system::system_error& e)
67 BOOST_TEST(e.code().value() == boost::system::errc::operation_not_permitted);
70 boost::upgrade_lock < boost::shared_mutex > lk(m, boost::defer_lock);
71 //time_point t0 = Clock::now();
73 //time_point t1 = Clock::now();
74 BOOST_TEST(lk.owns_lock() == true);
75 //ns d = t1 - t0 - ms(250);
76 // This test is spurious as it depends on the time the thread system switches the threads
77 //BOOST_TEST(d < ns(2500000)+ms(1000)); // within 2.5ms
83 catch (boost::system::system_error& e)
85 BOOST_TEST(e.code().value() == boost::system::errc::resource_deadlock_would_occur);
94 catch (boost::system::system_error& e)
96 BOOST_TEST(e.code().value() == boost::system::errc::operation_not_permitted);
105 #if defined BOOST_THREAD_USES_CHRONO
106 boost::this_thread::sleep_for(ms(250));
112 return boost::report_errors();