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/locks.hpp>
16
17 // template <class Mutex> class shared_lock;
18
19 // template <class Clock, class Duration>
20 // shared_lock(mutex_type& m, const chrono::time_point<Clock, Duration>& abs_time);
21
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>
26 #include "../../../../../timming.hpp"
27
28 boost::shared_mutex m;
29
30 typedef boost::chrono::high_resolution_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;
35 time_point t0;
36 time_point t1;
37
38 const ms max_diff(BOOST_THREAD_TEST_TIME_MS);
39
f1()40 void f1()
41 {
42 t0 = Clock::now();
43 boost::shared_lock<boost::shared_mutex> lk(m, Clock::now() + ms(750));
44 BOOST_TEST(lk.owns_lock() == true);
45 t1 = Clock::now();
46 }
47
f2()48 void f2()
49 {
50 t0 = Clock::now();
51 boost::shared_lock<boost::shared_mutex> lk(m, Clock::now() + ms(250));
52 BOOST_TEST(lk.owns_lock() == false);
53 t1 = Clock::now();
54 ns d = t1 - t0 - ms(250);
55 BOOST_THREAD_TEST_IT(d, ns(max_diff));
56 }
57
main()58 int main()
59 {
60 {
61 m.lock();
62 boost::thread t(f1);
63 time_point t2 = Clock::now();
64 boost::this_thread::sleep_for(ms(250));
65 time_point t3 = Clock::now();
66 m.unlock();
67 t.join();
68
69 ns sleep_time = t3 - t2;
70 ns d_ns = t1 - t0 - sleep_time;
71 ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns);
72 // BOOST_TEST_GE(d_ms.count(), 0);
73 BOOST_THREAD_TEST_IT(d_ms, max_diff);
74 BOOST_THREAD_TEST_IT(d_ns, ns(max_diff));
75 }
76 {
77 m.lock();
78 boost::thread t(f2);
79 boost::this_thread::sleep_for(ms(750));
80 m.unlock();
81 t.join();
82 }
83
84 return boost::report_errors();
85 }
86
87