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// 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/once.hpp>
#include <boost/thread/thread.hpp>
#include <boost/test/unit_test.hpp>
#include <libs/thread/test/util.inl>
int once_value = 0;
boost::once_flag once = BOOST_ONCE_INIT;
void init_once_value()
{
once_value++;
}
void test_once_thread()
{
boost::call_once(init_once_value, once);
}
void do_test_once()
{
const int NUMTHREADS=5;
boost::thread_group threads;
for (int i=0; i<NUMTHREADS; ++i)
threads.create_thread(&test_once_thread);
threads.join_all();
BOOST_CHECK_EQUAL(once_value, 1);
}
void test_once()
{
timed_test(&do_test_once, 2);
}
boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[])
{
boost::unit_test_framework::test_suite* test =
BOOST_TEST_SUITE("Boost.Threads: once test suite");
test->add(BOOST_TEST_CASE(test_once));
return test;
}
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