libopenraw
io.h
1/*
2 * libopenraw - io.h
3 *
4 * Copyright (C) 2005 Hubert Figuiere
5 *
6 * This library is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation, either version 3 of
9 * the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library. If not, see
18 * <http://www.gnu.org/licenses/>.
19 */
20
21#ifndef LIBOPENRAW_IO_H_
22#define LIBOPENRAW_IO_H_
23
24#include <sys/types.h>
25#include <unistd.h>
26#include <fcntl.h>
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32
34typedef struct _IOFile *IOFileRef;
35
36
38struct io_methods {
42 IOFileRef (*open)(const char *path, int mode);
44 int (*close) (IOFileRef f);
46 int (*seek) (IOFileRef f, off_t offset, int whence);
48 int (*read) (IOFileRef f, void *buf, size_t count);
49
50 off_t (*filesize) (IOFileRef f);
51 void* (*mmap) (IOFileRef f, size_t l, off_t offset);
52 int (*munmap) (IOFileRef f, void *addr, size_t l);
53};
54
55extern struct io_methods* get_default_io_methods(void);
56
57extern IOFileRef raw_open(struct io_methods * methods, const char *path,
58 int mode);
59extern int raw_close(IOFileRef f);
60extern int raw_seek(IOFileRef f, off_t offset, int whence);
61extern int raw_read(IOFileRef f, void *buf, size_t count);
62extern off_t raw_filesize(IOFileRef f);
63extern void *raw_mmap(IOFileRef f, size_t l, off_t offset);
64extern int raw_munmap(IOFileRef f, void *addr, size_t l);
65
66extern int raw_get_error(IOFileRef f);
67extern char *raw_get_path(IOFileRef f);
68
69
70#ifdef __cplusplus
71}
72#endif
73
74
75
76#endif
int(* seek)(IOFileRef f, off_t offset, int whence)
Definition io.h:46
IOFileRef(* open)(const char *path, int mode)
Definition io.h:42
int(* close)(IOFileRef f)
Definition io.h:44
int(* read)(IOFileRef f, void *buf, size_t count)
Definition io.h:48