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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;
// template <class Rep, class Period>
// bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
#include <boost/thread/locks.hpp>
//#include <boost/thread/mutex.hpp>
#include <boost/detail/lightweight_test.hpp>
bool try_lock_called = false;
struct mutex
{
bool try_lock()
{
try_lock_called = !try_lock_called;
return try_lock_called;
}
void unlock()
{
}
};
mutex m;
int main()
{
boost::unique_lock<mutex> lk(m, boost::defer_lock);
BOOST_TEST(lk.try_lock() == true);
BOOST_TEST(try_lock_called == true);
BOOST_TEST(lk.owns_lock() == true);
try
{
lk.try_lock();
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() == false);
BOOST_TEST(try_lock_called == false);
BOOST_TEST(lk.owns_lock() == false);
lk.release();
try
{
lk.try_lock();
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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