solanaceae_util/solanaceae/file/file2.hpp

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#pragma once
#include <solanaceae/util/span.hpp>
#include <vector>
#include <variant>
struct File2I {
// read only
uint64_t _file_size {0};
const bool can_write {false};
const bool can_read {false};
// TODO: non-seekable files?
explicit File2I(bool can_write_, bool can_read_) : can_write(can_write_), can_read(can_read_) {}
virtual ~File2I(void) {}
virtual bool isGood(void) = 0;
// pos -1 means stream, append to last written, or read position (independent, like FILE*s)
virtual bool write(const ByteSpan data, int64_t pos = -1) = 0;
2024-03-31 15:42:05 +02:00
[[nodiscard]] virtual std::variant<ByteSpan, std::vector<uint8_t>> read(uint64_t size, int64_t pos = -1) = 0;
};