43 lines
980 B
C++
43 lines
980 B
C++
#ifndef OSRM_STORAGE_BLOCK_HPP
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#define OSRM_STORAGE_BLOCK_HPP
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#include "storage/io.hpp"
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#include <cstdint>
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#include <string>
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#include <tuple>
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namespace osrm
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{
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namespace storage
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{
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struct Block
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{
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std::uint64_t num_entries;
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std::uint64_t byte_size;
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std::uint64_t offset;
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Block() : num_entries(0), byte_size(0), offset(0) {}
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Block(std::uint64_t num_entries, std::uint64_t byte_size, std::uint64_t offset)
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: num_entries(num_entries), byte_size(byte_size), offset(offset)
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{
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}
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Block(std::uint64_t num_entries, std::uint64_t byte_size)
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: num_entries(num_entries), byte_size(byte_size), offset(0)
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{
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}
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};
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using NamedBlock = std::tuple<std::string, Block>;
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template <typename T> Block make_block(uint64_t num_entries)
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{
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static_assert(sizeof(T) % alignof(T) == 0, "aligned T* can't be used as an array pointer");
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return Block{num_entries, sizeof(T) * num_entries, 0};
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}
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} // namespace storage
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} // namespace osrm
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#endif
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