thread/test/sync/conditions/condition_variable/wait_pass.cpp
2017-05-06 12:09:23 +02:00

80 lines
1.8 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Copyright (C) 2011 Vicente J. Botet Escriba
//
// 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)
// <boost/thread/condition_variable>
// class condition_variable;
// void wait(unique_lock<mutex>& lock);
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/thread.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <cassert>
#include <iostream>
#if defined BOOST_THREAD_USES_CHRONO
boost::condition_variable cv;
boost::mutex mut;
int test1 = 0;
int test2 = 0;
int runs = 0;
void f()
{
try {
boost::unique_lock<boost::mutex> lk(mut);
assert(test2 == 0);
test1 = 1;
cv.notify_one();
while (test2 == 0) {
cv.wait(lk);
}
assert(test2 != 0);
} catch(...) {
std::cout << "ERROR exception" << __LINE__ << std::endl;
assert(false);
}
}
int main()
{
try {
boost::unique_lock<boost::mutex>lk(mut);
boost::thread t(f);
BOOST_TEST(test1 == 0);
while (test1 == 0)
{
cv.wait(lk);
}
BOOST_TEST(test1 != 0);
test2 = 1;
lk.unlock();
cv.notify_one();
t.join();
} catch(...) {
BOOST_TEST(false);
std::cout << "ERROR exception" << __LINE__ << std::endl;
}
return boost::report_errors();
}
#else
#error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
#endif