osrm-backend/include/extractor/extractor_callbacks.hpp

90 lines
2.6 KiB
C++

#ifndef EXTRACTOR_CALLBACKS_HPP
#define EXTRACTOR_CALLBACKS_HPP
#include "extractor/guidance/turn_lane_types.hpp"
#include "util/typedefs.hpp"
#include <boost/functional/hash.hpp>
#include <boost/optional/optional_fwd.hpp>
#include <string>
#include <unordered_map>
namespace osmium
{
class Node;
class Way;
}
namespace std
{
template <> struct hash<std::tuple<std::string, std::string, std::string, std::string>>
{
std::size_t
operator()(const std::tuple<std::string, std::string, std::string, std::string> &mk) const
noexcept
{
std::size_t seed = 0;
boost::hash_combine(seed, std::get<0>(mk));
boost::hash_combine(seed, std::get<1>(mk));
boost::hash_combine(seed, std::get<2>(mk));
boost::hash_combine(seed, std::get<3>(mk));
return seed;
}
};
}
namespace osrm
{
namespace extractor
{
class ExtractionContainers;
struct InputRestrictionContainer;
struct ExtractionNode;
struct ExtractionWay;
struct ProfileProperties;
/**
* This class is used by the extractor with the results of the
* osmium based parsing and the customization through the lua profile.
*
* It mediates between the multi-threaded extraction process and the external memory containers.
* Thus the synchronization is handled inside of the extractor.
*/
class ExtractorCallbacks
{
private:
// used to deduplicate street names, refs, destinations, pronunciation: actually maps to name
// ids
using MapKey = std::tuple<std::string, std::string, std::string, std::string>;
using MapVal = unsigned;
std::unordered_map<MapKey, MapVal> string_map;
guidance::LaneDescriptionMap lane_description_map;
ExtractionContainers &external_memory;
bool fallback_to_duration;
public:
explicit ExtractorCallbacks(ExtractionContainers &extraction_containers,
const ProfileProperties &properties);
ExtractorCallbacks(const ExtractorCallbacks &) = delete;
ExtractorCallbacks &operator=(const ExtractorCallbacks &) = delete;
// warning: caller needs to take care of synchronization!
void ProcessNode(const osmium::Node &current_node, const ExtractionNode &result_node);
// warning: caller needs to take care of synchronization!
void ProcessRestriction(const boost::optional<InputRestrictionContainer> &restriction);
// warning: caller needs to take care of synchronization!
void ProcessWay(const osmium::Way &current_way, const ExtractionWay &result_way);
// destroys the internal laneDescriptionMap
guidance::LaneDescriptionMap &&moveOutLaneDescriptionMap();
};
}
}
#endif /* EXTRACTOR_CALLBACKS_HPP */