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	dpavlin	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);