servers/mfs/proto.h

   1 #ifndef __MFS_PROTO_H__
   2 #define __MFS_PROTO_H__
   3
   4 /* Some shortcuts to functions in -lminixfs */
   5 #define get_block(d, b, t) lmfs_get_block(d, b, t)
   6 #define put_block(b, t) lmfs_put_block(b, t)
   7
   8 /* Function prototypes. */
   9
  10 /* Structs used in prototypes must be declared as such first. */
  11 struct buf;
  12 struct filp;
  13 struct inode;
  14 struct super_block;
  15
  16
  17 /* cache.c */
  18 zone_t alloc_zone(dev_t dev, zone_t z);
  19 void free_zone(dev_t dev, zone_t numb);
  20
  21 /* inode.c */
  22 struct inode *alloc_inode(dev_t dev, mode_t bits);
  23 void dup_inode(struct inode *ip);
  24 struct inode *find_inode(dev_t dev, ino_t numb);
  25 int fs_putnode(void);
  26 void init_inode_cache(void);
  27 struct inode *get_inode(dev_t dev, ino_t numb);
  28 void put_inode(struct inode *rip);
  29 void update_times(struct inode *rip);
  30 void rw_inode(struct inode *rip, int rw_flag);
  31
  32 /* link.c */
  33 int fs_ftrunc(void);
  34 int fs_link(void);
  35 int fs_rdlink(void);
  36 int fs_rename(void);
  37 int fs_unlink(void);
  38 int truncate_inode(struct inode *rip, off_t len);
  39
  40 /* misc.c */
  41 int fs_flush(void);
  42 int fs_sync(void);
  43 int fs_new_driver(void);
  44 int fs_bpeek(void);
  45
  46 /* mount.c */
  47 int fs_mountpoint(void);
  48 int fs_readsuper(void);
  49 int fs_unmount(void);
  50
  51 /* open.c */
  52 int fs_create(void);
  53 int fs_inhibread(void);
  54 int fs_mkdir(void);
  55 int fs_mknod(void);
  56 int fs_slink(void);
  57
  58 /* path.c */
  59 int fs_lookup(void);
  60 struct inode *advance(struct inode *dirp, char string[MFS_NAME_MAX], int
  61         chk_perm);
  62 int search_dir(struct inode *ldir_ptr, char string [MFS_NAME_MAX], ino_t
  63         *numb, int flag, int check_permissions);
  64
  65
  66 /* protect.c */
  67 int fs_chmod(void);
  68 int fs_chown(void);
  69 int fs_getdents(void);
  70 int forbidden(struct inode *rip, mode_t access_desired);
  71 int read_only(struct inode *ip);
  72
  73 /* read.c */
  74 int fs_breadwrite(void);
  75 int fs_readwrite(void);
  76 void read_ahead(void);
  77 block_t read_map(struct inode *rip, off_t pos, int opportunistic);
  78 struct buf *get_block_map(register struct inode *rip, u64_t position);
  79 zone_t rd_indir(struct buf *bp, int index);
  80
  81 /* stadir.c */
  82 int fs_fstatfs(void);
  83 int fs_stat(void);
  84 int fs_statvfs(void);
  85
  86 /* super.c */
  87 bit_t alloc_bit(struct super_block *sp, int map, bit_t origin);
  88 void free_bit(struct super_block *sp, int map, bit_t bit_returned);
  89 unsigned int get_block_size(dev_t dev);
  90 struct super_block *get_super(dev_t dev);
  91 int read_super(struct super_block *sp);
  92 int write_super(struct super_block *sp);
  93 u32_t get_used_blocks(struct super_block *sp);
  94
  95 /* stats.c */
  96 bit_t count_free_bits(struct super_block *sp, int map);
  97
  98 /* time.c */
  99 int fs_utime(void);
 100
 101 /* utility.c */
 102 time_t clock_time(void);
 103 unsigned conv2(int norm, int w);
 104 long conv4(int norm, long x);
 105 void mfs_nul_f(char *file, int line, char *str, unsigned int len,
 106         unsigned int maxlen);
 107 int min(unsigned int l, unsigned int r);
 108 int no_sys(void);
 109 void sanitycheck(char *file, int line);
 110 #define SANITYCHECK sanitycheck(__FILE__, __LINE__)
 111
 112 /* write.c */
 113 void clear_zone(struct inode *rip, off_t pos, int flag);
 114 struct buf *new_block(struct inode *rip, off_t position);
 115 void zero_block(struct buf *bp);
 116 int write_map(struct inode *, off_t, zone_t, int);
 117
 118 #endif
 119