57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
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#ifndef INTERNAL_DATAFACADE_HPP
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#define INTERNAL_DATAFACADE_HPP
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// implements all data storage when shared memory is _NOT_ used
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#include "engine/datafacade/memory_datafacade_base.hpp"
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#include "storage/storage.hpp"
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namespace osrm
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{
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namespace engine
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{
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namespace datafacade
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{
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/**
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* This datafacade uses a process-local memory block to load
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* data into. The structure and layout is the same as when using
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* shared memory, so this class, and the SharedDatafacade both
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* share a common base.
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* This class holds a unique_ptr to the memory block, so it
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* is auto-freed upon destruction.
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*/
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class InternalDataFacade final : public MemoryDataFacadeBase
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{
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private:
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std::unique_ptr<char[]> internal_memory;
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std::unique_ptr<storage::DataLayout> internal_layout;
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public:
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explicit InternalDataFacade(const storage::StorageConfig &config)
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{
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storage::Storage storage(config);
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// Calculate the layout/size of the memory block
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internal_layout = std::make_unique<storage::DataLayout>();
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storage.LoadLayout(internal_layout.get());
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// Allocate the memory block, then load data from files into it
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internal_memory.reset(new char[internal_layout->GetSizeOfLayout()]);
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storage.LoadData(internal_layout.get(), internal_memory.get());
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// Set the common base-class pointers
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data_layout = internal_layout.get();
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memory_block = internal_memory.get();
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// Adjust all the private m_* members to point to the right places
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Init();
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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 // INTERNAL_DATAFACADE_HPP
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