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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
#pragma once
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#include "routing/regions_decl.hpp"
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#include "routing/router_delegate.hpp"
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#include "base/thread.hpp"
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#include <functional>
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#include <memory>
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#include <set>
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#include <string>
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namespace routing
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{
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using LocalFileCheckerFn = std::function<bool(std::string const &)>;
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// Encapsulates generation of mwm names of absent regions needed for building the route between
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// |checkpoints|. For this purpose the new thread is used.
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class AbsentRegionsFinder
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{
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public:
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AbsentRegionsFinder(CountryFileGetterFn const & countryFileGetter,
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LocalFileCheckerFn const & localFileChecker,
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std::shared_ptr<NumMwmIds> numMwmIds, DataSource & dataSource);
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// Creates new thread |m_routerThread| and starts routing in it.
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void GenerateAbsentRegions(Checkpoints const & checkpoints, RouterDelegate const & delegate);
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// Waits for the routing thread |m_routerThread| to finish and returns results from it.
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void GetAllRegions(std::set<std::string> & countries);
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// Waits for the results from GetAllRegions() and returns only regions absent on the device.
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void GetAbsentRegions(std::set<std::string> & absentCountries);
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private:
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bool AreCheckpointsInSameMwm(Checkpoints const & checkpoints) const;
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CountryFileGetterFn const m_countryFileGetterFn;
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LocalFileCheckerFn const m_localFileCheckerFn;
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std::shared_ptr<NumMwmIds> m_numMwmIds;
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DataSource & m_dataSource;
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std::unique_ptr<threads::Thread> m_routerThread;
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};
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} // namespace routing
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