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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;
- // template <class Rep, class Period>
- // bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
- #include <boost/thread/lock_types.hpp>
- //#include <boost/thread/shared_mutex.hpp>
- #include <boost/detail/lightweight_test.hpp>
- bool try_lock_for_called = false;
- typedef boost::chrono::milliseconds ms;
- struct shared_mutex
- {
- template <class Rep, class Period>
- bool try_lock_upgrade_for(const boost::chrono::duration<Rep, Period>& rel_time)
- {
- BOOST_TEST(rel_time == ms(5));
- try_lock_for_called = !try_lock_for_called;
- return try_lock_for_called;
- }
- void unlock_upgrade()
- {
- }
- };
- shared_mutex m;
- int main()
- {
- boost::upgrade_lock<shared_mutex> lk(m, boost::defer_lock);
- BOOST_TEST(lk.try_lock_for(ms(5)) == true);
- BOOST_TEST(try_lock_for_called == true);
- BOOST_TEST(lk.owns_lock() == true);
- try
- {
- lk.try_lock_for(ms(5));
- BOOST_TEST(false);
- }
- catch (boost::system::system_error& e)
- {
- BOOST_TEST(e.code().value() == boost::system::errc::resource_deadlock_would_occur);
- }
- lk.unlock();
- BOOST_TEST(lk.try_lock_for(ms(5)) == false);
- BOOST_TEST(try_lock_for_called == false);
- BOOST_TEST(lk.owns_lock() == false);
- lk.release();
- try
- {
- lk.try_lock_for(ms(5));
- BOOST_TEST(false);
- }
- catch (boost::system::system_error& e)
- {
- BOOST_TEST(e.code().value() == boost::system::errc::operation_not_permitted);
- }
- return boost::report_errors();
- }
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