blob: 38b0cba8fc100b2c36998a177f2728a0d4f159d1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// FLAKY_TEST.
// <condition_variable>
// class condition_variable_any;
// void notify_one();
#include <condition_variable>
#include <mutex>
#include <thread>
#include <cassert>
#include "test_macros.h"
std::condition_variable_any cv;
typedef std::timed_mutex L0;
typedef std::unique_lock<L0> L1;
L0 m0;
int test0 = 0;
int test1 = 0;
int test2 = 0;
void f1()
{
L1 lk(m0);
assert(test1 == 0);
while (test1 == 0)
cv.wait(lk);
assert(test1 == 1);
test1 = 2;
}
void f2()
{
L1 lk(m0);
assert(test2 == 0);
while (test2 == 0)
cv.wait(lk);
assert(test2 == 1);
test2 = 2;
}
int main(int, char**)
{
std::thread t1(f1);
std::thread t2(f2);
std::this_thread::sleep_for(std::chrono::milliseconds(100));
{
L1 lk(m0);
test1 = 1;
test2 = 1;
}
cv.notify_one();
{
std::this_thread::sleep_for(std::chrono::milliseconds(100));
L1 lk(m0);
}
if (test1 == 2)
{
t1.join();
test1 = 0;
}
else if (test2 == 2)
{
t2.join();
test2 = 0;
}
else
assert(false);
cv.notify_one();
{
std::this_thread::sleep_for(std::chrono::milliseconds(100));
L1 lk(m0);
}
if (test1 == 2)
{
t1.join();
test1 = 0;
}
else if (test2 == 2)
{
t2.join();
test2 = 0;
}
else
assert(false);
return 0;
}
|
