fssh_fs_info.h revision b6f76ebe
1/* General File System informations/capabilities
2**
3** Distributed under the terms of the MIT License.
4*/
5#ifndef _FSSH_FS_INFO_H
6#define	_FSSH_FS_INFO_H
7
8#include "fssh_defs.h"
9#include "fssh_os.h"
10
11
12/* fs_info.flags */
13#define	FSSH_B_FS_IS_READONLY		0x00000001
14#define	FSSH_B_FS_IS_REMOVABLE		0x00000002
15#define	FSSH_B_FS_IS_PERSISTENT		0x00000004
16#define	FSSH_B_FS_IS_SHARED			0x00000008
17#define	FSSH_B_FS_HAS_MIME			0x00010000
18#define	FSSH_B_FS_HAS_ATTR			0x00020000
19#define	FSSH_B_FS_HAS_QUERY			0x00040000
20// those additions are preliminary and may be removed
21#define FSSH_B_FS_HAS_SELF_HEALING_LINKS	0x00080000
22#define FSSH_B_FS_HAS_ALIASES				0x00100000
23#define FSSH_B_FS_SUPPORTS_NODE_MONITORING	0x00200000
24#define FSSH_B_FS_SUPPORTS_MONITOR_CHILDREN	0x00400000
25
26typedef struct fssh_fs_info {
27	fssh_dev_t	dev;								/* volume dev_t */
28	fssh_ino_t	root;								/* root ino_t */
29	uint32_t	flags;								/* flags (see above) */
30	fssh_off_t	block_size;							/* fundamental block size */
31	fssh_off_t	io_size;							/* optimal i/o size */
32	fssh_off_t	total_blocks;						/* total number of blocks */
33	fssh_off_t	free_blocks;						/* number of free blocks */
34	fssh_off_t	total_nodes;						/* total number of nodes */
35	fssh_off_t	free_nodes;							/* number of free nodes */
36	char		device_name[128];					/* device holding fs */
37	char		volume_name[FSSH_B_FILE_NAME_LENGTH];	/* volume name */
38	char		fsh_name[FSSH_B_OS_NAME_LENGTH];		/* name of fs handler */
39} fssh_fs_info;
40
41
42#ifdef  __cplusplus
43extern "C" {
44#endif
45
46extern fssh_dev_t	dev_for_path(const char *path);
47extern fssh_dev_t	next_dev(int32_t *pos);
48extern int			fs_stat_dev(fssh_dev_t dev, fssh_fs_info *info);
49
50#ifdef  __cplusplus
51}
52#endif
53
54#endif	/* _FSSH_FS_INFO_H */
55