60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
#ifndef OSRM_CONTRACTOR_FILES_HPP
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#define OSRM_CONTRACTOR_FILES_HPP
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#include "contractor/serialization.hpp"
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#include <unordered_map>
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namespace osrm
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{
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namespace contractor
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{
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namespace files
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{
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// reads .osrm.hsgr file
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template <typename ContractedMetricT>
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inline void readGraph(const boost::filesystem::path &path,
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std::unordered_map<std::string, ContractedMetricT> &metrics,
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std::uint32_t &connectivity_checksum)
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{
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static_assert(std::is_same<ContractedMetric, ContractedMetricT>::value ||
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std::is_same<ContractedMetricView, ContractedMetricT>::value,
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"metric must be of type ContractedMetric<>");
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const auto fingerprint = storage::tar::FileReader::VerifyFingerprint;
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storage::tar::FileReader reader{path, fingerprint};
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reader.ReadInto("/ch/connectivity_checksum", connectivity_checksum);
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for (auto &pair : metrics)
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{
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serialization::read(reader, "/ch/metrics/" + pair.first, pair.second);
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}
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}
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// writes .osrm.hsgr file
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template <typename ContractedMetricT>
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inline void writeGraph(const boost::filesystem::path &path,
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const std::unordered_map<std::string, ContractedMetricT> &metrics,
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const std::uint32_t connectivity_checksum)
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{
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static_assert(std::is_same<ContractedMetric, ContractedMetricT>::value ||
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std::is_same<ContractedMetricView, ContractedMetricT>::value,
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"metric must be of type ContractedMetric<>");
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const auto fingerprint = storage::tar::FileWriter::GenerateFingerprint;
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storage::tar::FileWriter writer{path, fingerprint};
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writer.WriteElementCount64("/ch/connectivity_checksum", 1);
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writer.WriteFrom("/ch/connectivity_checksum", connectivity_checksum);
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for (const auto &pair : metrics)
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{
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serialization::write(writer, "/ch/metrics/" + pair.first, pair.second);
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}
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}
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}
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}
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}
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#endif
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