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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) 2012 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/shared_mutex.hpp> | |
16 | ||
17 | // class shared_mutex; | |
18 | ||
19 | // template <class Rep, class Period> | |
20 | // bool try_lock_for(const chrono::duration<Rep, Period>& rel_time); | |
21 | ||
22 | #include <boost/thread/shared_mutex.hpp> | |
23 | #include <boost/thread/thread.hpp> | |
24 | #include <boost/detail/lightweight_test.hpp> | |
25 | ||
26 | boost::shared_mutex m; | |
27 | ||
28 | typedef boost::chrono::steady_clock Clock; | |
29 | typedef Clock::time_point time_point; | |
30 | typedef Clock::duration duration; | |
31 | typedef boost::chrono::milliseconds ms; | |
32 | typedef boost::chrono::nanoseconds ns; | |
33 | ||
34 | void f1() | |
35 | { | |
36 | time_point t0 = Clock::now(); | |
37 | // This test is spurious as it depends on the time the thread system switches the threads | |
38 | BOOST_TEST(m.try_lock_for(ms(300)+ms(1000)) == true); | |
39 | time_point t1 = Clock::now(); | |
40 | m.unlock(); | |
41 | ns d = t1 - t0 - ms(250); | |
42 | BOOST_TEST(d < ns(5000000)+ms(1000)); // within 5ms | |
43 | } | |
44 | ||
45 | void f2() | |
46 | { | |
47 | time_point t0 = Clock::now(); | |
48 | BOOST_TEST(m.try_lock_for(ms(250)) == false); | |
49 | time_point t1 = Clock::now(); | |
50 | ns d = t1 - t0 - ms(250); | |
51 | // This test is spurious as it depends on the time the thread system switches the threads | |
52 | BOOST_TEST(d < ns(5000000)+ms(1000)); // within 5ms | |
53 | } | |
54 | ||
55 | int main() | |
56 | { | |
57 | { | |
58 | m.lock(); | |
59 | boost::thread t(f1); | |
60 | boost::this_thread::sleep_for(ms(250)); | |
61 | m.unlock(); | |
62 | t.join(); | |
63 | } | |
64 | { | |
65 | m.lock(); | |
66 | boost::thread t(f2); | |
67 | // This test is spurious as it depends on the time the thread system switches the threads | |
68 | boost::this_thread::sleep_for(ms(300)+ms(1000)); | |
69 | m.unlock(); | |
70 | t.join(); | |
71 | } | |
72 | ||
73 | return boost::report_errors(); | |
74 | } | |
75 |