51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
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#ifndef OSRM_CONTRACTOR_DIJKSTRA_HPP
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#define OSRM_CONTRACTOR_DIJKSTRA_HPP
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#include "contractor/contractor_graph.hpp"
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#include "contractor/contractor_heap.hpp"
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#include "util/typedefs.hpp"
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#include <cstddef>
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namespace osrm
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{
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namespace contractor
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{
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// allow access to the heap itself, add Dijkstra functionality on top
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class ContractorDijkstra
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{
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public:
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ContractorDijkstra(std::size_t heap_size);
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// search the graph up
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void Run(const unsigned number_of_targets,
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const int node_limit,
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const int weight_limit,
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const NodeID forbidden_node,
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const ContractorGraph &graph);
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// adaption of the heap interface
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void Clear();
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bool WasInserted(const NodeID node) const;
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void Insert(const NodeID node,
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const ContractorHeap::WeightType weight,
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const ContractorHeap::DataType &data);
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// cannot be const due to node-hash access in the binary heap :(
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ContractorHeap::WeightType GetKey(const NodeID node);
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private:
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void RelaxNode(const NodeID node,
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const int node_weight,
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const NodeID forbidden_node,
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const ContractorGraph &graph);
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ContractorHeap heap;
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};
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} // namespace contractor
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} // namespace osrm
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#endif // OSRM_CONTRACTOR_DIJKSTRA_HPP
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