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//===----------------------------------------------------------------------===//
//
// 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/locks.hpp>
// template <class Mutex> class unique_lock;
// unique_lock(upgrade_lock&& u, try_to_lock);
#define BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN
#include <boost/thread/locks.hpp>
#include <boost/thread/shared_mutex.hpp>
#include <boost/detail/lightweight_test.hpp>
boost::upgrade_mutex m;
int main()
{
{
boost::upgrade_lock<boost::upgrade_mutex> lk0(m);
boost::unique_lock<boost::upgrade_mutex> lk(boost::move(lk0), boost::try_to_lock );
BOOST_TEST(lk.mutex() == &m);
BOOST_TEST(lk.owns_lock() == true);
BOOST_TEST(lk0.mutex() == 0);
BOOST_TEST(lk0.owns_lock() == false);
}
{
boost::unique_lock<boost::upgrade_mutex> lk(boost::upgrade_lock<boost::upgrade_mutex>(m), boost::try_to_lock);
BOOST_TEST(lk.mutex() == &m);
BOOST_TEST(lk.owns_lock() == true);
}
{
boost::upgrade_lock<boost::upgrade_mutex> lk0(m, boost::defer_lock);
boost::unique_lock<boost::upgrade_mutex> lk(boost::move(lk0), boost::try_to_lock);
BOOST_TEST(lk.mutex() == &m);
BOOST_TEST(lk.owns_lock() == false);
BOOST_TEST(lk0.mutex() == 0);
BOOST_TEST(lk0.owns_lock() == false);
}
{
boost::upgrade_lock<boost::upgrade_mutex> lk0(m, boost::defer_lock);
lk0.release();
boost::unique_lock<boost::upgrade_mutex> lk(boost::move(lk0), boost::try_to_lock);
BOOST_TEST(lk.mutex() == 0);
BOOST_TEST(lk.owns_lock() == false);
BOOST_TEST(lk0.mutex() == 0);
BOOST_TEST(lk0.owns_lock() == false);
}
return boost::report_errors();
}
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