Atmosphere/libraries/libstratosphere/include/stratosphere/fs/fs_file.hpp

88 lines
2.9 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere/fs/fs_common.hpp>
namespace ams::fs {
struct ReadOption {
u32 _value;
static const ReadOption None;
};
enum ReadOptionFlag : u32 {
ReadOptionFlag_None = (0 << 0),
};
inline constexpr const ReadOption ReadOption::None = {ReadOptionFlag_None};
inline constexpr bool operator==(const ReadOption &lhs, const ReadOption &rhs) {
return lhs._value == rhs._value;
}
inline constexpr bool operator!=(const ReadOption &lhs, const ReadOption &rhs) {
return !(lhs == rhs);
}
static_assert(util::is_pod<ReadOption>::value && sizeof(ReadOption) == sizeof(u32));
enum WriteOptionFlag : u32 {
WriteOptionFlag_None = (0 << 0),
WriteOptionFlag_Flush = (1 << 0),
};
struct WriteOption {
u32 _value;
constexpr inline bool HasFlushFlag() const {
return _value & WriteOptionFlag_Flush;
}
static const WriteOption None;
static const WriteOption Flush;
};
inline constexpr const WriteOption WriteOption::None = {WriteOptionFlag_None};
inline constexpr const WriteOption WriteOption::Flush = {WriteOptionFlag_Flush};
inline constexpr bool operator==(const WriteOption &lhs, const WriteOption &rhs) {
return lhs._value == rhs._value;
}
inline constexpr bool operator!=(const WriteOption &lhs, const WriteOption &rhs) {
return !(lhs == rhs);
}
static_assert(util::is_pod<WriteOption>::value && sizeof(WriteOption) == sizeof(u32));
struct FileHandle {
void *handle;
};
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option);
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size);
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option);
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size);
Result GetFileSize(s64 *out, FileHandle handle);
Result FlushFile(FileHandle handle);
Result WriteFile(FileHandle handle, s64 offset, const void *buffer, size_t size, const fs::WriteOption &option);
Result SetFileSize(FileHandle handle, s64 size);
int GetFileOpenMode(FileHandle handle);
void CloseFile(FileHandle handle);
}