osrm-backend/include/engine/routing_algorithms/many_to_many.hpp
2018-05-08 15:50:25 +00:00

105 lines
2.9 KiB
C++

#ifndef MANY_TO_MANY_ROUTING_HPP
#define MANY_TO_MANY_ROUTING_HPP
#include "engine/algorithm.hpp"
#include "engine/datafacade.hpp"
#include "engine/search_engine_data.hpp"
#include "util/typedefs.hpp"
#include <vector>
namespace osrm
{
namespace engine
{
namespace routing_algorithms
{
namespace
{
struct NodeBucket
{
NodeID middle_node;
NodeID parent_node;
unsigned column_index : 31; // a column in the weight/duration matrix
unsigned from_clique_arc : 1;
EdgeWeight weight;
EdgeDuration duration;
NodeBucket(NodeID middle_node,
NodeID parent_node,
bool from_clique_arc,
unsigned column_index,
EdgeWeight weight,
EdgeDuration duration)
: middle_node(middle_node), parent_node(parent_node), column_index(column_index),
from_clique_arc(from_clique_arc), weight(weight), duration(duration)
{
}
NodeBucket(NodeID middle_node,
NodeID parent_node,
unsigned column_index,
EdgeWeight weight,
EdgeDuration duration)
: middle_node(middle_node), parent_node(parent_node), column_index(column_index),
from_clique_arc(false), weight(weight), duration(duration)
{
}
// partial order comparison
bool operator<(const NodeBucket &rhs) const
{
return std::tie(middle_node, column_index) < std::tie(rhs.middle_node, rhs.column_index);
}
// functor for equal_range
struct Compare
{
bool operator()(const NodeBucket &lhs, const NodeID &rhs) const
{
return lhs.middle_node < rhs;
}
bool operator()(const NodeID &lhs, const NodeBucket &rhs) const
{
return lhs < rhs.middle_node;
}
};
// functor for equal_range
struct ColumnCompare
{
unsigned column_idx;
ColumnCompare(unsigned column_idx) : column_idx(column_idx){};
bool operator()(const NodeBucket &lhs, const NodeID &rhs) const // lowerbound
{
return std::tie(lhs.middle_node, lhs.column_index) < std::tie(rhs, column_idx);
}
bool operator()(const NodeID &lhs, const NodeBucket &rhs) const // upperbound
{
return std::tie(lhs, column_idx) < std::tie(rhs.middle_node, rhs.column_index);
}
};
};
} // namespace
template <typename Algorithm>
std::pair<std::vector<EdgeDuration>, std::vector<EdgeDistance>>
manyToManySearch(SearchEngineData<Algorithm> &engine_working_data,
const DataFacade<Algorithm> &facade,
const std::vector<PhantomNode> &phantom_nodes,
const std::vector<std::size_t> &source_indices,
const std::vector<std::size_t> &target_indices,
const bool calculate_distance,
const bool calculate_duration);
} // namespace routing_algorithms
} // namespace engine
} // namespace osrm
#endif