/* General File System informations/capabilities
**
** Distributed under the terms of the MIT License.
*/
#ifndef _FS_INFO_H
#define _FS_INFO_H

#include <OS.h>


/* fs_info.flags */
#define B_FS_IS_READONLY                0x00000001
#define B_FS_IS_REMOVABLE               0x00000002
#define B_FS_IS_PERSISTENT              0x00000004
#define B_FS_IS_SHARED                  0x00000008
#define B_FS_HAS_MIME                   0x00010000
#define B_FS_HAS_ATTR                   0x00020000
#define B_FS_HAS_QUERY                  0x00040000
// those additions are preliminary and may be removed
#define B_FS_HAS_SELF_HEALING_LINKS             0x00080000
#define B_FS_HAS_ALIASES                                0x00100000
#define B_FS_SUPPORTS_NODE_MONITORING   0x00200000

typedef struct fs_info {
        dev_t   dev;                                                            /* volume dev_t */
        ino_t   root;                                                           /* root ino_t */
        uint32  flags;                                                          /* flags (see above) */
        off_t   block_size;                                                     /* fundamental block size */
        off_t   io_size;                                                        /* optimal i/o size */
        off_t   total_blocks;                                           /* total number of blocks */
        off_t   free_blocks;                                            /* number of free blocks */
        off_t   total_nodes;                                            /* total number of nodes */
        off_t   free_nodes;                                                     /* number of free nodes */
        char    device_name[B_DEV_NAME_LENGTH];         /* device holding fs */
        char    volume_name[B_FILE_NAME_LENGTH];        /* volume name */
        char    fsh_name[B_OS_NAME_LENGTH];                     /* name of fs handler */
} fs_info;


#ifdef  __cplusplus
extern "C" {
#endif

extern dev_t    dev_for_path(const char *path);
extern dev_t    next_dev(int32 *pos);
extern int              fs_stat_dev(dev_t dev, fs_info *info);

#ifdef  __cplusplus
}
#endif

#endif  /* _FS_INFO_H */