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// Copyright (C) 2001-2003
// William E. Kempf
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation. William E. Kempf makes no representations
// about the suitability of this software for any purpose.
// It is provided "as is" without express or implied warranty.
#include <boost/thread/detail/config.hpp>
#include <boost/thread/condition.hpp>
#include <boost/thread/thread.hpp>
#include <boost/thread/xtime.hpp>
#include <boost/test/unit_test.hpp>
#include <libs/thread/test/util.inl>
struct condition_test_data
{
condition_test_data() : notified(0), awoken(0) { }
boost::mutex mutex;
boost::condition condition;
int notified;
int awoken;
};
void condition_test_thread(condition_test_data* data)
{
boost::mutex::scoped_lock lock(data->mutex);
BOOST_CHECK(lock ? true : false);
while (!(data->notified > 0))
data->condition.wait(lock);
BOOST_CHECK(lock ? true : false);
data->awoken++;
}
struct cond_predicate
{
cond_predicate(int& var, int val) : _var(var), _val(val) { }
bool operator()() { return _var == _val; }
int& _var;
int _val;
};
void condition_test_waits(condition_test_data* data)
{
boost::mutex::scoped_lock lock(data->mutex);
BOOST_CHECK(lock ? true : false);
// Test wait.
while (data->notified != 1)
data->condition.wait(lock);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data->notified, 1);
data->awoken++;
data->condition.notify_one();
// Test predicate wait.
data->condition.wait(lock, cond_predicate(data->notified, 2));
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data->notified, 2);
data->awoken++;
data->condition.notify_one();
// Test timed_wait.
boost::xtime xt = delay(10);
while (data->notified != 3)
data->condition.timed_wait(lock, xt);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data->notified, 3);
data->awoken++;
data->condition.notify_one();
// Test predicate timed_wait.
xt = delay(10);
cond_predicate pred(data->notified, 4);
BOOST_CHECK(data->condition.timed_wait(lock, xt, pred));
BOOST_CHECK(lock ? true : false);
BOOST_CHECK(pred());
BOOST_CHECK_EQUAL(data->notified, 4);
data->awoken++;
data->condition.notify_one();
}
void do_test_condition_notify_one()
{
condition_test_data data;
boost::thread thread(bind(&condition_test_thread, &data));
{
boost::mutex::scoped_lock lock(data.mutex);
BOOST_CHECK(lock ? true : false);
data.notified++;
data.condition.notify_one();
}
thread.join();
BOOST_CHECK_EQUAL(data.awoken, 1);
}
void test_condition_notify_one()
{
timed_test(&do_test_condition_notify_one, 2, execution_monitor::use_mutex);
}
void do_test_condition_notify_all()
{
const int NUMTHREADS = 5;
boost::thread_group threads;
condition_test_data data;
for (int i = 0; i < NUMTHREADS; ++i)
threads.create_thread(bind(&condition_test_thread, &data));
{
boost::mutex::scoped_lock lock(data.mutex);
BOOST_CHECK(lock ? true : false);
data.notified++;
data.condition.notify_all();
}
threads.join_all();
BOOST_CHECK_EQUAL(data.awoken, NUMTHREADS);
}
void test_condition_notify_all()
{
// We should have already tested notify_one here, so
// a timed test with the default execution_monitor::use_condition
// should be OK, and gives the fastest performance
timed_test(&do_test_condition_notify_all, 3);
}
void do_test_condition_waits()
{
condition_test_data data;
boost::thread thread(bind(&condition_test_waits, &data));
{
boost::mutex::scoped_lock lock(data.mutex);
BOOST_CHECK(lock ? true : false);
boost::thread::sleep(delay(1));
data.notified++;
data.condition.notify_one();
while (data.awoken != 1)
data.condition.wait(lock);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data.awoken, 1);
boost::thread::sleep(delay(1));
data.notified++;
data.condition.notify_one();
while (data.awoken != 2)
data.condition.wait(lock);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data.awoken, 2);
boost::thread::sleep(delay(1));
data.notified++;
data.condition.notify_one();
while (data.awoken != 3)
data.condition.wait(lock);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data.awoken, 3);
boost::thread::sleep(delay(1));
data.notified++;
data.condition.notify_one();
while (data.awoken != 4)
data.condition.wait(lock);
BOOST_CHECK(lock ? true : false);
BOOST_CHECK_EQUAL(data.awoken, 4);
}
thread.join();
BOOST_CHECK_EQUAL(data.awoken, 4);
}
void test_condition_waits()
{
// We should have already tested notify_one here, so
// a timed test with the default execution_monitor::use_condition
// should be OK, and gives the fastest performance
timed_test(&do_test_condition_waits, 12);
}
boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[])
{
boost::unit_test_framework::test_suite* test =
BOOST_TEST_SUITE("Boost.Threads: condition test suite");
test->add(BOOST_TEST_CASE(&test_condition_notify_one));
test->add(BOOST_TEST_CASE(&test_condition_notify_all));
test->add(BOOST_TEST_CASE(&test_condition_waits));
return test;
}
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