FreeNOS
PseudoFile.h
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1/*
2 * Copyright (C) 2015 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_PSEUDOFILE_H
19#define __LIB_LIBFS_PSEUDOFILE_H
20
21#include <Types.h>
22#include "File.h"
23#include "IOBuffer.h"
24
36class PseudoFile : public File
37{
38 public:
39
45 PseudoFile(const u32 inode);
46
53 PseudoFile(const u32 inode,
54 const char *str);
55
59 virtual ~PseudoFile();
60
71 virtual FileSystem::Result read(IOBuffer & buffer,
72 Size & size,
73 const Size offset);
74
85 virtual FileSystem::Result write(IOBuffer & buffer,
86 Size & size,
87 const Size offset);
88
89 private:
90
92 char *m_buffer;
93};
94
100#endif /* __LIB_LIBFS_PSEUDOFILE_H */
Represents a file present on a FileSystem.
Definition File.h:40
Abstract Input/Output buffer.
Definition IOBuffer.h:38
Pseudo files only exist in memory.
Definition PseudoFile.h:37
virtual FileSystem::Result read(IOBuffer &buffer, Size &size, const Size offset)
Read bytes from the file.
virtual FileSystem::Result write(IOBuffer &buffer, Size &size, const Size offset)
Write bytes to the file.
virtual ~PseudoFile()
Destructor.
char * m_buffer
Buffer from which we read.
Definition PseudoFile.h:92
unsigned int u32
Unsigned 32-bit number.
Definition Types.h:53
unsigned int Size
Any sane size indicator cannot go negative.
Definition Types.h:128
Result
Result code for filesystem Actions.
Definition FileSystem.h:53