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
|
// Copyright (C) 2001-2003
// William E. Kempf
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/thread/detail/config.hpp>
#include <boost/thread/thread.hpp>
#include <boost/thread/barrier.hpp>
#include <boost/test/unit_test.hpp>
namespace {
// Shared variables for generation barrier test
const int N_THREADS=10;
boost::barrier gen_barrier(N_THREADS);
boost::mutex mutex;
long global_parameter;
void barrier_thread()
{
for (int i = 0; i < 5; ++i)
{
if (gen_barrier.wait())
{
boost::mutex::scoped_lock lock(mutex);
global_parameter++;
}
}
}
} // namespace
void test_barrier()
{
boost::thread_group g;
global_parameter = 0;
for (int i = 0; i < N_THREADS; ++i)
g.create_thread(&barrier_thread);
g.join_all();
BOOST_CHECK(global_parameter == 5);
}
boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[])
{
boost::unit_test_framework::test_suite* test =
BOOST_TEST_SUITE("Boost.Threads: barrier test suite");
test->add(BOOST_TEST_CASE(&test_barrier));
return test;
}
|
