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Univerxel/src/server/world/region/File.hpp

34 lines
1.0 KiB
C++

#pragma once
#include <string>
#include <shared_mutex>
#include <fstream>
#include "../../../core/world/forward.h"
#include "../../../core/utils/zctx.hpp"
#include "../../../core/data/math.hpp"
namespace world::server {
///Group of chunks saved as a single file only pointer
class FileRegion {
public:
FileRegion(const std::string& folderPath, const area_<region_pos> &pos);
~FileRegion();
typedef std::vector<char> data;
bool read(const region_chunk_pos &pos, const zstd::read_ctx& ctx, data &out);
void write(const region_chunk_pos &pos, const zstd::write_ctx& ctx, const std::string_view &in);
private:
void save(std::optional<std::pair<region_chunk_pos, std::unique_ptr<FileRegion::data>>> added);
std::string path;
//TODO: use tickets to remove unused regions
std::shared_mutex mutex;
std::ifstream file;
robin_hood::unordered_map<region_chunk_pos, std::pair<uint16_t, std::streampos>> index;
void load();
};
}