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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/shared_lock_guard.hpp> | |
16 | ||
17 | // template <class Mutex> class shared_lock_guard; | |
18 | ||
19 | // shared_lock_guard(shared_lock_guard const&) = delete; | |
20 | ||
21 | #include <boost/thread/shared_lock_guard.hpp> | |
22 | #include <boost/thread/shared_mutex.hpp> | |
23 | #include <boost/thread/thread.hpp> | |
24 | #include <boost/detail/lightweight_test.hpp> | |
25 | ||
26 | #if defined BOOST_THREAD_USES_CHRONO | |
27 | typedef boost::chrono::high_resolution_clock Clock; | |
28 | typedef Clock::time_point time_point; | |
29 | typedef Clock::duration duration; | |
30 | typedef boost::chrono::milliseconds ms; | |
31 | typedef boost::chrono::nanoseconds ns; | |
32 | #else | |
33 | #endif | |
34 | ||
35 | boost::shared_mutex m; | |
36 | ||
37 | void f() | |
38 | { | |
39 | #if defined BOOST_THREAD_USES_CHRONO | |
40 | time_point t0 = Clock::now(); | |
41 | time_point t1; | |
42 | { | |
43 | boost::shared_lock_guard<boost::shared_mutex> lg(m); | |
44 | t1 = Clock::now(); | |
45 | } | |
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 | |
49 | #else | |
50 | //time_point t0 = Clock::now(); | |
51 | //time_point t1; | |
52 | { | |
53 | boost::shared_lock_guard<boost::shared_mutex> lg(m); | |
54 | //t1 = Clock::now(); | |
55 | } | |
56 | //ns d = t1 - t0 - ms(250); | |
57 | // This test is spurious as it depends on the time the thread system switches the threads | |
58 | //BOOST_TEST(d < ns(2500000)+ms(1000)); // within 2.5ms | |
59 | #endif | |
60 | } | |
61 | ||
62 | int main() | |
63 | { | |
64 | m.lock(); | |
65 | boost::thread t(f); | |
66 | #if defined BOOST_THREAD_USES_CHRONO | |
67 | boost::this_thread::sleep_for(ms(250)); | |
68 | #else | |
69 | #endif | |
70 | m.unlock(); | |
71 | t.join(); | |
72 | ||
73 | return boost::report_errors(); | |
74 | } |