83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
#pragma once
|
|
|
|
#include "xcdat/bc_vector_7.hpp"
|
|
#include "xcdat/bc_vector_8.hpp"
|
|
#include "xcdat/load_visitor.hpp"
|
|
#include "xcdat/mmap_visitor.hpp"
|
|
#include "xcdat/save_visitor.hpp"
|
|
#include "xcdat/size_visitor.hpp"
|
|
#include "xcdat/trie.hpp"
|
|
|
|
namespace xcdat {
|
|
|
|
using trie_7_type = trie<bc_vector_7>;
|
|
using trie_8_type = trie<bc_vector_8>;
|
|
|
|
//! Map the memory to the trie index.
|
|
template <class Trie>
|
|
[[maybe_unused]] Trie mmap(const char* address) {
|
|
mmap_visitor visitor(address);
|
|
|
|
std::uint32_t flag;
|
|
visitor.visit(flag);
|
|
XCDAT_THROW_IF(flag != Trie::l1_bits, "The input index type is different.");
|
|
|
|
Trie idx;
|
|
visitor.visit(idx);
|
|
return idx;
|
|
}
|
|
|
|
//! Load the trie index from the file.
|
|
template <class Trie>
|
|
[[maybe_unused]] Trie load(std::string_view filepath) {
|
|
load_visitor visitor(filepath);
|
|
|
|
std::uint32_t flag;
|
|
visitor.visit(flag);
|
|
XCDAT_THROW_IF(flag != Trie::l1_bits, "The input index type is different.");
|
|
|
|
Trie idx;
|
|
visitor.visit(idx);
|
|
return idx;
|
|
}
|
|
|
|
//! Save the trie index into the file, and returns the file size in bytes.
|
|
template <class Trie>
|
|
[[maybe_unused]] std::uint64_t save(const Trie& idx, std::string_view filepath) {
|
|
save_visitor visitor(filepath);
|
|
visitor.visit(static_cast<std::uint32_t>(Trie::l1_bits)); // flag
|
|
visitor.visit(const_cast<Trie&>(idx));
|
|
return visitor.bytes();
|
|
}
|
|
|
|
//! Get the index size in bytes.
|
|
template <class Trie>
|
|
[[maybe_unused]] std::uint64_t memory_in_bytes(const Trie& idx) {
|
|
size_visitor visitor;
|
|
visitor.visit(static_cast<std::uint32_t>(Trie::l1_bits)); // flag
|
|
visitor.visit(const_cast<Trie&>(idx));
|
|
return visitor.bytes();
|
|
}
|
|
|
|
[[maybe_unused]] std::uint32_t get_flag(std::string_view filepath) {
|
|
std::ifstream ifs(filepath);
|
|
XCDAT_THROW_IF(!ifs.good(), "Cannot open the input file");
|
|
|
|
std::uint32_t flag;
|
|
ifs.read(reinterpret_cast<char*>(&flag), sizeof(flag));
|
|
return flag;
|
|
}
|
|
|
|
[[maybe_unused]] std::vector<std::string> load_strings(std::string_view filepath) {
|
|
std::ifstream ifs(filepath);
|
|
XCDAT_THROW_IF(!ifs.good(), "Cannot open the input file");
|
|
|
|
std::vector<std::string> strs;
|
|
for (std::string str; std::getline(ifs, str);) {
|
|
strs.push_back(str);
|
|
}
|
|
return strs;
|
|
}
|
|
|
|
} // namespace xcdat
|