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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 | ||
27 | boost::shared_mutex m; | |
28 | ||
29 | typedef boost::chrono::steady_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 | ||
35 | void f1() | |
36 | { | |
37 | time_point t0 = Clock::now(); | |
38 | // This test is spurious as it depends on the time the thread system switches the threads | |
39 | boost::shared_lock<boost::shared_mutex> lk(m, Clock::now() + ms(300)+ms(1000)); | |
40 | BOOST_TEST(lk.owns_lock() == true); | |
41 | time_point t1 = Clock::now(); | |
42 | ns d = t1 - t0 - ms(250); | |
43 | // This test is spurious as it depends on the time the thread system switches the threads | |
44 | BOOST_TEST(d < ns(50000000)+ms(1000)); // within 50ms | |
45 | } | |
46 | ||
47 | void f2() | |
48 | { | |
49 | time_point t0 = Clock::now(); | |
50 | boost::shared_lock<boost::shared_mutex> lk(m, Clock::now() + ms(250)); | |
51 | BOOST_TEST(lk.owns_lock() == false); | |
52 | time_point t1 = Clock::now(); | |
53 | ns d = t1 - t0 - ms(250); | |
54 | // This test is spurious as it depends on the time the thread system switches the threads | |
55 | BOOST_TEST(d < ns(5000000)+ms(1000)); // within 5ms | |
56 | } | |
57 | ||
58 | int main() | |
59 | { | |
60 | { | |
61 | m.lock(); | |
62 | boost::thread t(f1); | |
63 | boost::this_thread::sleep_for(ms(250)); | |
64 | m.unlock(); | |
65 | t.join(); | |
66 | } | |
67 | { | |
68 | m.lock(); | |
69 | boost::thread t(f2); | |
70 | boost::this_thread::sleep_for(ms(300)+ms(1000)); | |
71 | m.unlock(); | |
72 | t.join(); | |
73 | } | |
74 | ||
75 | return boost::report_errors(); | |
76 | } | |
77 |