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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 <iostream> | |
21 | #include <boost/thread/condition_variable.hpp> | |
22 | #include <boost/thread/mutex.hpp> | |
23 | #include <boost/thread/thread.hpp> | |
24 | #include <boost/detail/lightweight_test.hpp> | |
b32b8144 | 25 | #include <cassert> |
7c673cae FG |
26 | |
27 | #if defined BOOST_THREAD_USES_CHRONO | |
28 | ||
29 | boost::condition_variable cv; | |
30 | boost::mutex mut; | |
31 | ||
32 | int test1 = 0; | |
33 | int test2 = 0; | |
34 | ||
35 | int runs = 0; | |
36 | ||
37 | void f() | |
38 | { | |
b32b8144 FG |
39 | try { |
40 | typedef boost::chrono::steady_clock Clock; | |
41 | typedef boost::chrono::milliseconds milliseconds; | |
42 | boost::unique_lock<boost::mutex> lk(mut); | |
43 | assert(test2 == 0); | |
44 | test1 = 1; | |
45 | cv.notify_one(); | |
46 | Clock::time_point t0 = Clock::now(); | |
47 | int count=0; | |
48 | while (test2 == 0 && cv.wait_for(lk, milliseconds(250)) == boost::cv_status::no_timeout) | |
49 | count++; | |
50 | Clock::time_point t1 = Clock::now(); | |
51 | if (runs == 0) | |
52 | { | |
53 | assert(t1 - t0 < milliseconds(250)); | |
54 | assert(test2 != 0); | |
55 | } | |
56 | else | |
57 | { | |
58 | // This test is spurious as it depends on the time the thread system switches the threads | |
59 | assert(t1 - t0 - milliseconds(250) < milliseconds(count*250+5+1000)); | |
60 | assert(test2 == 0); | |
61 | } | |
62 | ++runs; | |
63 | } catch(...) { | |
64 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
65 | assert(false); | |
7c673cae | 66 | } |
7c673cae FG |
67 | } |
68 | ||
69 | int main() | |
70 | { | |
b32b8144 | 71 | try |
7c673cae FG |
72 | { |
73 | boost::unique_lock<boost::mutex> lk(mut); | |
74 | boost::thread t(f); | |
75 | BOOST_TEST(test1 == 0); | |
76 | while (test1 == 0) | |
77 | cv.wait(lk); | |
78 | BOOST_TEST(test1 != 0); | |
79 | test2 = 1; | |
80 | lk.unlock(); | |
81 | cv.notify_one(); | |
82 | t.join(); | |
b32b8144 FG |
83 | } catch(...) { |
84 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
85 | BOOST_TEST(false); | |
7c673cae FG |
86 | } |
87 | test1 = 0; | |
88 | test2 = 0; | |
b32b8144 | 89 | try |
7c673cae FG |
90 | { |
91 | boost::unique_lock<boost::mutex> lk(mut); | |
92 | boost::thread t(f); | |
93 | BOOST_TEST(test1 == 0); | |
94 | while (test1 == 0) | |
95 | cv.wait(lk); | |
96 | BOOST_TEST(test1 != 0); | |
97 | lk.unlock(); | |
98 | t.join(); | |
b32b8144 FG |
99 | } catch(...) { |
100 | BOOST_TEST(false); | |
101 | std::cout << "ERROR exception" << __LINE__ << std::endl; | |
7c673cae | 102 | } |
7c673cae FG |
103 | return boost::report_errors(); |
104 | } | |
105 | #else | |
106 | #error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported" | |
107 | #endif | |
108 |