minix/fs/ext2/proto.h

   1 #ifndef EXT2_PROTO_H
   2 #define EXT2_PROTO_H
   3
   4 #define put_block(n) lmfs_put_block(n)
   5
   6 /* Function prototypes. */
   7
   8 /* Structs used in prototypes must be declared as such first. */
   9 struct buf;
  10 struct filp;
  11 struct inode;
  12 struct super_block;
  13
  14 /* balloc.c */
  15 void discard_preallocated_blocks(struct inode *rip);
  16 block_t alloc_block(struct inode *rip, block_t goal);
  17 void free_block(struct super_block *sp, bit_t bit);
  18
  19 /* ialloc.c */
  20 struct inode *alloc_inode(struct inode *parent, mode_t bits, uid_t uid,
  21         gid_t gid);
  22 void free_inode(struct inode *rip);
  23
  24 /* inode.c */
  25 void dup_inode(struct inode *ip);
  26 struct inode *find_inode(dev_t dev, ino_t numb);
  27 int fs_putnode(ino_t ino_nr, unsigned int count);
  28 void init_inode_cache(void);
  29 struct inode *get_inode(dev_t dev, ino_t numb);
  30 void put_inode(struct inode *rip);
  31 void update_times(struct inode *rip);
  32 void rw_inode(struct inode *rip, int rw_flag);
  33
  34 /* link.c */
  35 int fs_trunc(ino_t ino_nr, off_t start, off_t end);
  36 int fs_link(ino_t dir_nr, char *name, ino_t ino_nr);
  37 int fs_rdlink(ino_t ino_nr, struct fsdriver_data *data, size_t bytes);
  38 int fs_rename(ino_t old_dir_nr, char *old_name, ino_t new_dir_nr,
  39         char *new_name);
  40 int fs_unlink(ino_t dir_nr, char *name, int call);
  41 int truncate_inode(struct inode *rip, off_t len);
  42
  43 /* misc.c */
  44 void fs_sync(void);
  45
  46 /* mount.c */
  47 int fs_mount(dev_t dev, unsigned int flags, struct fsdriver_node *root_node,
  48         unsigned int *res_flags);
  49 void fs_unmount(void);
  50 int fs_mountpt(ino_t ino_nr);
  51
  52 /* open.c */
  53 int fs_create(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid,
  54         struct fsdriver_node *node);
  55 int fs_mkdir(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid);
  56 int fs_mknod(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid,
  57         dev_t dev);
  58 int fs_slink(ino_t dir_nr, char *name, uid_t uid, gid_t gid,
  59         struct fsdriver_data *data, size_t bytes);
  60 void fs_seek(ino_t ino_nr);
  61
  62 /* path.c */
  63 int fs_lookup(ino_t dir_nr, char *name, struct fsdriver_node *node,
  64         int *is_mountpt);
  65 struct inode *advance(struct inode *dirp, const char *string);
  66 int search_dir(struct inode *ldir_ptr, const char *string, ino_t *numb,
  67         int flag, int ftype);
  68
  69 /* protect.c */
  70 int fs_chmod(ino_t ino_nr, mode_t *mode);
  71 int fs_chown(ino_t ino_nr, uid_t uid, gid_t gid, mode_t *mode);
  72
  73 /* read.c */
  74 ssize_t fs_readwrite(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
  75         off_t pos, int call);
  76 block_t rd_indir(struct buf *bp, int index);
  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 ssize_t fs_getdents(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
  80         off_t *posp);
  81
  82 /* stadir.c */
  83 int fs_stat(ino_t ino_nr, struct stat *statbuf);
  84 int fs_statvfs(struct statvfs *st);
  85
  86 /* super.c */
  87 unsigned int get_block_size(dev_t dev);
  88 struct super_block *get_super(dev_t dev);
  89 int read_super(struct super_block *sp);
  90 void write_super(struct super_block *sp);
  91 struct group_desc* get_group_desc(unsigned int bnum);
  92
  93 /* time.c */
  94 int fs_utime(ino_t ino, struct timespec *atime, struct timespec *mtime);
  95
  96 /* utility.c */
  97 struct buf *get_block(dev_t dev, block_t block, int how);
  98 unsigned conv2(int norm, int w);
  99 long conv4(int norm, long x);
 100 int ansi_strcmp(register const char* ansi_s, register const char *s2,
 101         register size_t ansi_s_length);
 102 bit_t setbit(bitchunk_t *bitmap, bit_t max_bits, unsigned int word);
 103 bit_t setbyte(bitchunk_t *bitmap, bit_t max_bits);
 104 int unsetbit(bitchunk_t *bitmap, bit_t bit);
 105
 106 /* write.c */
 107 struct buf *new_block(struct inode *rip, off_t position);
 108 void zero_block(struct buf *bp);
 109 int write_map(struct inode *, off_t, block_t, int);
 110
 111 #endif /* EXT2_PROTO_H */