FreeNOS
Storage.h
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1/*
2 * Copyright (C) 2009 Niek Linnenbank
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef __LIB_LIBFS_STORAGE_H
19#define __LIB_LIBFS_STORAGE_H
20
21#include <Types.h>
22#include "FileSystem.h"
23
36{
37 public:
38
42 Storage();
43
47 virtual ~Storage();
48
55
65 virtual FileSystem::Result read(const u64 offset, void *buffer, const Size size) const = 0;
66
76 virtual FileSystem::Result write(const u64 offset, void *buffer, const Size size);
77
83 virtual u64 capacity() const = 0;
84};
85
91#endif /* __LIB_LIBFS_STORAGE_H */
Provides a storage device to build filesystems on top.
Definition Storage.h:36
virtual FileSystem::Result initialize()=0
Initialize the Storage device.
virtual ~Storage()
Destructor function.
Definition Storage.cpp:25
Storage()
Constructor function.
Definition Storage.cpp:21
virtual FileSystem::Result read(const u64 offset, void *buffer, const Size size) const =0
Read a contiguous set of data.
virtual FileSystem::Result write(const u64 offset, void *buffer, const Size size)
Write a contiguous set of data.
Definition Storage.cpp:29
virtual u64 capacity() const =0
Retrieve maximum storage capacity.
unsigned int Size
Any sane size indicator cannot go negative.
Definition Types.h:128
unsigned long long u64
Unsigned 64-bit number.
Definition Types.h:50
Result
Result code for filesystem Actions.
Definition FileSystem.h:53