55 lines
1006 B
C++
55 lines
1006 B
C++
#pragma once
|
|
|
|
#include <cstdint>
|
|
#include <filesystem>
|
|
#include <optional>
|
|
#include <string>
|
|
#include <string_view>
|
|
|
|
#include "nf7.hh"
|
|
|
|
|
|
namespace nf7 {
|
|
|
|
class NFile final {
|
|
public:
|
|
class Exception final : public nf7::Exception {
|
|
using nf7::Exception::Exception;
|
|
};
|
|
|
|
enum Flag : uint8_t {
|
|
kRead = 1 << 0,
|
|
kWrite = 1 << 1,
|
|
};
|
|
using Flags = uint8_t;
|
|
|
|
NFile() = delete;
|
|
NFile(const std::filesystem::path& path, Flags flags) :
|
|
path_(path), flags_(flags) {
|
|
Init();
|
|
}
|
|
~NFile() noexcept;
|
|
NFile(const NFile&) = delete;
|
|
NFile(NFile&&) = delete;
|
|
NFile& operator=(const NFile&) = delete;
|
|
NFile& operator=(NFile&&) = delete;
|
|
|
|
size_t Read(size_t offset, uint8_t* buf, size_t size);
|
|
size_t Write(size_t offset, const uint8_t* buf, size_t size);
|
|
size_t Truncate(size_t size);
|
|
|
|
Flags flags() const noexcept {
|
|
return flags_;
|
|
}
|
|
|
|
private:
|
|
const std::filesystem::path path_;
|
|
const Flags flags_;
|
|
|
|
uintptr_t handle_;
|
|
|
|
void Init();
|
|
};
|
|
|
|
} // namespace nf7
|