1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* libopenraw - file.h
*
* Copyright (C) 2006 Hubert Figuière
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef __IO_FILE_H__
#define __IO_FILE_H__
#include <sys/types.h>
#include <unistd.h>
#include <libopenraw/libopenraw.h>
#include "stream.h"
namespace OpenRaw {
namespace IO {
/** file IO stream */
class File
: public Stream
{
public:
/** Contruct the file
* @param filename the full pathname for the file
*/
File(const char *filename);
virtual ~File();
// file APIs
/** open the file */
virtual Error open();
/** close the file */
virtual int close();
/** seek in the file. Semantics are similar to POSIX */
virtual int seek(off_t offset, int whence);
/** read in the file. Semantics are similar to POSIX */
virtual int read(void *buf, size_t count);
virtual off_t filesize();
// virtual void *mmap(size_t l, off_t offset);
// virtual int munmap(void *addr, size_t l);
private:
/** private copy constructor to make sure it is not called */
File(const File& f);
/** private = operator to make sure it is never called */
File & operator=(const File&);
/** the interface to the C io */
::io_methods *m_methods;
/** the C io file handle */
::IOFileRef m_ioRef;
};
}
}
#endif
|
