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7c673cae FG |
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/mutex.hpp> | |
16 | ||
17 | // class mutex; | |
18 | ||
19 | // bool try_lock(); | |
20 | ||
21 | #include <boost/thread/mutex.hpp> | |
22 | #include <boost/thread/thread.hpp> | |
23 | #include <boost/detail/lightweight_test.hpp> | |
92f5a8d4 | 24 | #include "../../../timming.hpp" |
7c673cae FG |
25 | |
26 | ||
27 | boost::mutex m; | |
28 | ||
29 | #if defined BOOST_THREAD_USES_CHRONO | |
92f5a8d4 | 30 | typedef boost::chrono::high_resolution_clock Clock; |
7c673cae FG |
31 | typedef Clock::time_point time_point; |
32 | typedef Clock::duration duration; | |
33 | typedef boost::chrono::milliseconds ms; | |
34 | typedef boost::chrono::nanoseconds ns; | |
92f5a8d4 TL |
35 | time_point t0; |
36 | time_point t1; | |
7c673cae FG |
37 | #endif |
38 | ||
92f5a8d4 | 39 | const ms max_diff(BOOST_THREAD_TEST_TIME_MS); |
11fdf7f2 | 40 | |
7c673cae FG |
41 | void f() |
42 | { | |
43 | #if defined BOOST_THREAD_USES_CHRONO | |
92f5a8d4 | 44 | t0 = Clock::now(); |
7c673cae FG |
45 | BOOST_TEST(!m.try_lock()); |
46 | BOOST_TEST(!m.try_lock()); | |
47 | BOOST_TEST(!m.try_lock()); | |
48 | while (!m.try_lock()) | |
49 | ; | |
92f5a8d4 | 50 | t1 = Clock::now(); |
7c673cae | 51 | m.unlock(); |
7c673cae FG |
52 | #else |
53 | //time_point t0 = Clock::now(); | |
54 | //BOOST_TEST(!m.try_lock()); | |
55 | //BOOST_TEST(!m.try_lock()); | |
56 | //BOOST_TEST(!m.try_lock()); | |
57 | while (!m.try_lock()) | |
58 | ; | |
59 | //time_point t1 = Clock::now(); | |
60 | m.unlock(); | |
61 | //ns d = t1 - t0 - ms(250); | |
11fdf7f2 | 62 | //BOOST_TEST(d < max_diff); |
7c673cae FG |
63 | #endif |
64 | ||
65 | } | |
66 | ||
67 | int main() | |
68 | { | |
69 | m.lock(); | |
70 | boost::thread t(f); | |
71 | #if defined BOOST_THREAD_USES_CHRONO | |
92f5a8d4 | 72 | time_point t2 = Clock::now(); |
7c673cae | 73 | boost::this_thread::sleep_for(ms(250)); |
92f5a8d4 | 74 | time_point t3 = Clock::now(); |
7c673cae FG |
75 | #endif |
76 | m.unlock(); | |
77 | t.join(); | |
78 | ||
92f5a8d4 TL |
79 | #if defined BOOST_THREAD_USES_CHRONO |
80 | ns sleep_time = t3 - t2; | |
81 | ns d_ns = t1 - t0 - sleep_time; | |
82 | ms d_ms = boost::chrono::duration_cast<boost::chrono::milliseconds>(d_ns); | |
83 | // BOOST_TEST_GE(d_ms.count(), 0); | |
84 | BOOST_THREAD_TEST_IT(d_ms, max_diff); | |
85 | BOOST_THREAD_TEST_IT(d_ns, ns(max_diff)); | |
86 | #endif | |
87 | ||
7c673cae FG |
88 | return boost::report_errors(); |
89 | } | |
90 | ||
91 |