fs/hfsplus/os.h

/*
 * libhfs - library for reading and writing Macintosh HFS volumes
 * Copyright (C) 1996-1998 Robert Leslie
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/*
 * NAME:        os->open()
 * DESCRIPTION: open and lock a new descriptor from the given path and mode
 */
int hfsp_os_open(void **priv, const void *devicehandle, int mode);

/*
 * NAME:        os->close()
 * DESCRIPTION: close an open descriptor
 */
int hfsp_os_close(void **priv);

/*
 * NAME:        os->same()
 * DESCRIPTION: return 1 iff path is same as the open descriptor
 */
int hfsp_os_same(void **priv, const char *path);


/** Offset that is silently used by os_seek.
 *  Needed to transparaently support things like partitions */
/*extern APPLEUInt64 os_offset;*/
uint64 hfsp_get_offset(void **priv);
void hfsp_set_offset(void **priv, uint64 ofs);

/*
 * NAME:        os->seek()
 * DESCRIPTION: set a descriptor's seek pointer (offset in blocks)
 */
uint64 hfsp_os_seek(void **priv, uint64 offset, int blksize_bits);

/*
 * NAME:        os->read()
 * DESCRIPTION: read blocks from an open descriptor
 */
unsigned long hfsp_os_read(void **priv, void *buf, unsigned long len, int blksize_bits);

/*
 * NAME:        os->write()
 * DESCRIPTION: write blocks to an open descriptor
 */
unsigned long hfsp_os_write(void **priv, const void *buf, unsigned long len, int blksize_bits);
1	/*
2	* libhfs - library for reading and writing Macintosh HFS volumes
3	* Copyright (C) 1996-1998 Robert Leslie
4	*
5	* This program is free software; you can redistribute it and/or modify
6	* it under the terms of the GNU General Public License as published by
7	* the Free Software Foundation; either version 2 of the License, or
8	* (at your option) any later version.
9	*
10	* This program is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* You should have received a copy of the GNU General Public License
16	* along with this program; if not, write to the Free Software
17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18	*
19	*/
20
21	/*
22	* NAME: os->open()
23	* DESCRIPTION: open and lock a new descriptor from the given path and mode
24	*/
25	int hfsp_os_open(void *priv, const void devicehandle, int mode);
26
27	/*
28	* NAME: os->close()
29	* DESCRIPTION: close an open descriptor
30	*/
31	int hfsp_os_close(void **priv);
32
33	/*
34	* NAME: os->same()
35	* DESCRIPTION: return 1 iff path is same as the open descriptor
36	*/
37	int hfsp_os_same(void *priv, const char path);
38
39
40	/** Offset that is silently used by os_seek.
41	* Needed to transparaently support things like partitions */
42	/extern APPLEUInt64 os_offset;/
43	uint64 hfsp_get_offset(void **priv);
44	void hfsp_set_offset(void **priv, uint64 ofs);
45
46	/*
47	* NAME: os->seek()
48	* DESCRIPTION: set a descriptor's seek pointer (offset in blocks)
49	*/
50	uint64 hfsp_os_seek(void **priv, uint64 offset, int blksize_bits);
51
52	/*
53	* NAME: os->read()
54	* DESCRIPTION: read blocks from an open descriptor
55	*/
56	unsigned long hfsp_os_read(void *priv, void buf, unsigned long len, int blksize_bits);
57
58	/*
59	* NAME: os->write()
60	* DESCRIPTION: write blocks to an open descriptor
61	*/
62	unsigned long hfsp_os_write(void *priv, const void buf, unsigned long len, int blksize_bits);