iteration_nodes.h

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/*
 * Copyright 2018 Universidad Carlos III de Madrid
 * 
 * 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 GRPPI_FF_DETAIL_ITERATION_NODES_H
#define GRPPI_FF_DETAIL_ITERATION_NODES_H
 
#include <vector>
 
#include <ff/node.hpp>
 
namespace grppi {
 
namespace detail_ff {
 
template<typename Item, typename Iteration>
class iteration_worker : public ff::ff_node_t<Item> {
public:
  iteration_worker(Iteration && iteration) :
      iteration_{std::move(iteration)}
  {}
 
  Item * svc(Item * p_item) {
    do {
      *p_item = iteration_.transform(*p_item);
    }
    while (!iteration_.predicate(*p_item));
    return p_item;
  }
 
private:
  Iteration iteration_;
};
 
} // namespace detail_ff
 
} // namespace grppi
 
#endif