43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#ifndef OSRM_ENGINE_DATAFACADE_PROCESS_MEMORY_ALLOCATOR_HPP_
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#define OSRM_ENGINE_DATAFACADE_PROCESS_MEMORY_ALLOCATOR_HPP_
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#include "storage/storage_config.hpp"
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#include "engine/datafacade/contiguous_block_allocator.hpp"
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#include <memory>
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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 allocator 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.
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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 ProcessMemoryAllocator : public ContiguousBlockAllocator
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{
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public:
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explicit ProcessMemoryAllocator(const storage::StorageConfig &config);
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~ProcessMemoryAllocator() override final;
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// interface to give access to the datafacades
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storage::DataLayout &GetLayout() override final;
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char *GetMemory() override final;
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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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};
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} // namespace datafacade
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} // namespace engine
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} // namespace osrm
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#endif // OSRM_ENGINE_DATAFACADE_PROCESS_MEMORY_ALLOCATOR_HPP_
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