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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 | // Copyright (C) 2011 Vicente J. Botet Escriba | |
10 | // | |
11 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
12 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
13 | ||
14 | // <boost/thread/condition_variable> | |
15 | ||
16 | // class condition_variable; | |
17 | ||
18 | // condition_variable(const condition_variable&) = delete; | |
19 | ||
20 | #include <boost/thread/condition_variable.hpp> | |
21 | #include <boost/thread/mutex.hpp> | |
22 | #include <boost/thread/thread.hpp> | |
23 | #include <boost/detail/lightweight_test.hpp> | |
b32b8144 FG |
24 | #include <cassert> |
25 | #include <iostream> | |
7c673cae FG |
26 | |
27 | #if defined BOOST_THREAD_USES_CHRONO | |
28 | ||
29 | struct Clock | |
30 | { | |
31 | typedef boost::chrono::milliseconds duration; | |
32 | typedef duration::rep rep; | |
33 | typedef duration::period period; | |
34 | typedef boost::chrono::time_point<Clock> time_point; | |
35 | static const bool is_steady = true; | |
36 | ||
37 | static time_point now() | |
38 | { | |
39 | using namespace boost::chrono; | |
40 | return time_point(duration_cast<duration> (steady_clock::now().time_since_epoch())); | |
41 | } | |
42 | }; | |
43 | ||
44 | class Pred | |
45 | { | |
46 | int& i_; | |
47 | public: | |
48 | explicit Pred(int& i) : | |
49 | i_(i) | |
50 | { | |
51 | } | |
52 | ||
53 | bool operator()() | |
54 | { | |
55 | return i_ != 0; | |
56 | } | |
57 | }; | |
58 | ||
59 | boost::condition_variable cv; | |
60 | boost::mutex mut; | |
61 | ||
62 | int test1 = 0; | |
63 | int test2 = 0; | |
64 | ||
65 | int runs = 0; | |
66 | ||
67 | void f() | |
68 | { | |
b32b8144 FG |
69 | try { |
70 | boost::unique_lock<boost::mutex> lk(mut); | |
71 | assert(test2 == 0); | |
72 | test1 = 1; | |
73 | cv.notify_one(); | |
74 | Clock::time_point t0 = Clock::now(); | |
75 | Clock::time_point t = t0 + Clock::duration(250); | |
76 | bool r = cv.wait_until(lk, t, Pred(test2)); | |
77 | (void)r; | |
78 | Clock::time_point t1 = Clock::now(); | |
79 | if (runs == 0) | |
80 | { | |
81 | assert(t1 - t0 < Clock::duration(250)); | |
82 | assert(test2 != 0); | |
83 | assert(r); | |
84 | } | |
85 | else | |
86 | { | |
87 | assert(t1 - t0 - Clock::duration(250) < Clock::duration(250+2)); | |
88 | assert(test2 == 0); | |
89 | assert(!r); | |
90 | } | |
91 | ++runs; | |
92 | } catch(...) { | |
93 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
94 | assert(false); | |
7c673cae | 95 | } |
7c673cae FG |
96 | } |
97 | ||
98 | int main() | |
99 | { | |
b32b8144 | 100 | try |
7c673cae FG |
101 | { |
102 | boost::unique_lock<boost::mutex> lk(mut); | |
103 | boost::thread t(f); | |
104 | BOOST_TEST(test1 == 0); | |
105 | while (test1 == 0) | |
106 | cv.wait(lk); | |
107 | BOOST_TEST(test1 != 0); | |
108 | test2 = 1; | |
109 | lk.unlock(); | |
110 | cv.notify_one(); | |
111 | t.join(); | |
b32b8144 FG |
112 | } catch(...) { |
113 | BOOST_TEST(false); | |
114 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
7c673cae FG |
115 | } |
116 | test1 = 0; | |
117 | test2 = 0; | |
b32b8144 | 118 | try |
7c673cae FG |
119 | { |
120 | boost::unique_lock<boost::mutex> lk(mut); | |
121 | boost::thread t(f); | |
122 | BOOST_TEST(test1 == 0); | |
123 | while (test1 == 0) | |
124 | cv.wait(lk); | |
125 | BOOST_TEST(test1 != 0); | |
126 | lk.unlock(); | |
127 | t.join(); | |
b32b8144 FG |
128 | } catch(...) { |
129 | BOOST_TEST(false); | |
130 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
7c673cae FG |
131 | } |
132 | ||
133 | return boost::report_errors(); | |
134 | } | |
135 | ||
136 | #else | |
137 | #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" | |
138 | #endif |