.. _program_listing_file__tmp_ws_src_fastrtps_include_fastdds_dds_topic_IContentFilter.hpp:

Program Listing for File IContentFilter.hpp
===========================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_fastrtps_include_fastdds_dds_topic_IContentFilter.hpp>` (``/tmp/ws/src/fastrtps/include/fastdds/dds/topic/IContentFilter.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2021 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.
   
   #ifndef _FASTDDS_DDS_TOPIC_ICONTENTFILTER_HPP_
   #define _FASTDDS_DDS_TOPIC_ICONTENTFILTER_HPP_
   
   #include <fastrtps/fastrtps_dll.h>
   
   #include <fastdds/dds/core/LoanableTypedCollection.hpp>
   
   #include <fastdds/rtps/common/Guid.h>
   #include <fastdds/rtps/common/SampleIdentity.h>
   #include <fastdds/rtps/common/SerializedPayload.h>
   
   #include <fastrtps/types/TypesBase.h>
   #include <fastrtps/types/TypeDescriptor.h>
   
   namespace eprosima {
   namespace fastdds {
   namespace dds {
   
   struct IContentFilter
   {
       using SerializedPayload = eprosima::fastrtps::rtps::SerializedPayload_t;
       using GUID_t = fastrtps::rtps::GUID_t;
   
       struct FilterSampleInfo
       {
           using SampleIdentity = eprosima::fastrtps::rtps::SampleIdentity;
   
           SampleIdentity sample_identity;
           SampleIdentity related_sample_identity;
       };
   
       virtual bool evaluate(
               const SerializedPayload& payload,
               const FilterSampleInfo& sample_info,
               const GUID_t& reader_guid) const = 0;
   };
   
   } // namespace dds
   } // namespace fastdds
   } // namespace eprosima
   
   #endif  // _FASTDDS_DDS_TOPIC_ICONTENTFILTER_HPP_