simple_user_filter.h

Go to the documentation of this file.

/****************************************************************************
 *
 * 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_SIMPLE_USER_FILTER_H_
#define INCLUDE_FKIE_MESSAGE_FILTERS_SIMPLE_USER_FILTER_H_

#include "filter.h"
#include <functional>

namespace fkie_message_filters
{

template<typename... Inputs>
class SimpleUserFilter : public Filter<IO<Inputs...>, IO<Inputs...>>
{
public:
    using ProcessingFunction = std::function<bool(const Inputs&...)>;
    void set_processing_function (const ProcessingFunction& f) noexcept;
protected:
    void receive (const Inputs&... in) override;
private:
    ProcessingFunction f_;
};

template<typename... Inputs>
class SimpleUserFilter<IO<Inputs...>> : public SimpleUserFilter<Inputs...> {};

} // namespace fkie_message_filters

#include "simple_user_filter_impl.h"

#endif /* INCLUDE_FKIE_MESSAGE_FILTERS_SIMPLE_USER_FILTER_H_ */