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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 Rep, class Period> | |
20 | // bool try_lock_for(const chrono::duration<Rep, Period>& rel_time); | |
21 | ||
22 | #include <boost/thread/lock_types.hpp> | |
23 | //#include <boost/thread/shared_mutex.hpp> | |
24 | #include <boost/detail/lightweight_test.hpp> | |
25 | ||
26 | bool try_lock_called = false; | |
27 | ||
28 | struct shared_mutex | |
29 | { | |
30 | bool try_lock_shared() | |
31 | { | |
32 | try_lock_called = !try_lock_called; | |
33 | return try_lock_called; | |
34 | } | |
35 | void unlock_shared() | |
36 | { | |
37 | } | |
38 | }; | |
39 | ||
40 | shared_mutex m; | |
41 | ||
42 | int main() | |
43 | { | |
44 | boost::shared_lock<shared_mutex> lk(m, boost::defer_lock); | |
45 | BOOST_TEST(lk.try_lock() == true); | |
46 | BOOST_TEST(try_lock_called == true); | |
47 | BOOST_TEST(lk.owns_lock() == true); | |
48 | try | |
49 | { | |
50 | lk.try_lock(); | |
51 | BOOST_TEST(false); | |
52 | } | |
53 | catch (boost::system::system_error& e) | |
54 | { | |
55 | BOOST_TEST(e.code().value() == boost::system::errc::resource_deadlock_would_occur); | |
56 | } | |
57 | lk.unlock(); | |
58 | BOOST_TEST(lk.try_lock() == false); | |
59 | BOOST_TEST(try_lock_called == false); | |
60 | BOOST_TEST(lk.owns_lock() == false); | |
61 | lk.release(); | |
62 | try | |
63 | { | |
64 | lk.try_lock(); | |
65 | BOOST_TEST(false); | |
66 | } | |
67 | catch (boost::system::system_error& e) | |
68 | { | |
69 | BOOST_TEST(e.code().value() == boost::system::errc::operation_not_permitted); | |
70 | } | |
71 | ||
72 | return boost::report_errors(); | |
73 | } | |
74 |