filter.h

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/****************************************************************************
 *
 * fkie_message_filters
 * Copyright © 2018-2020 Fraunhofer FKIE
 * Author: Timo Röhling
 *
 * 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 INCLUDE_FKIE_MESSAGE_FILTERS_FILTER_H_
#define INCLUDE_FKIE_MESSAGE_FILTERS_FILTER_H_

#include "source.h"
#include "sink.h"

namespace fkie_message_filters
{

template<class In, class Out>
class Filter : public Sink<In>, public Source<Out>
{
    virtual void disconnect() noexcept override;
};

template<typename Filter1, typename Filter2, typename... MoreFilters>
void chain(Filter1& flt1, Filter2& flt2, MoreFilters&... filters) noexcept;

} // namespace fkie_message_filters

#include "filter_impl.h"

#endif /* INCLUDE_FKIE_MESSAGE_FILTERS_FILTER_H_ */