// Copyright 2022 Proyectos y Sistemas de Mantenimiento SL (eProsima).

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

/**

 * @file ChangeComparison.hpp

 */

#ifndef _RTPS_COMMON_CHANGECOMPARISON_HPP

#define _RTPS_COMMON_CHANGECOMPARISON_HPP

#include <fastdds/rtps/common/CacheChange.hpp>

namespace eprosima {

namespace fastdds {

namespace rtps {

inline bool history_order_cmp(

        const CacheChange_t* lhs,

        const CacheChange_t* rhs)

{

    return lhs->writerGUID == rhs->writerGUID ?

           lhs->sequenceNumber < rhs->sequenceNumber :

           lhs->sourceTimestamp < rhs->sourceTimestamp;

}

} /* namespace rtps */

} /* namespace fastdds */

} /* namespace eprosima */

#endif  // _RTPS_COMMON_CHANGECOMPARISON_HPP