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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 upgrade_lock;
- // void swap(upgrade_lock& u);
- #include <boost/thread/lock_types.hpp>
- #include <boost/detail/lightweight_test.hpp>
- struct shared_mutex
- {
- void lock_upgrade()
- {
- }
- void unlock_upgrade()
- {
- }
- };
- shared_mutex m;
- int main()
- {
- boost::upgrade_lock<shared_mutex> lk1(m);
- boost::upgrade_lock<shared_mutex> lk2;
- lk1.swap(lk2);
- BOOST_TEST(lk1.mutex() == 0);
- BOOST_TEST(lk1.owns_lock() == false);
- BOOST_TEST(lk2.mutex() == &m);
- BOOST_TEST(lk2.owns_lock() == true);
- return boost::report_errors();
- }
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