#ifndef EXT2_PROTO_H
#define EXT2_PROTO_H

/* Function prototypes. */

/* Structs used in prototypes must be declared as such first. */
struct buf;
struct filp;
struct inode;
struct super_block;


/* balloc.c */
_PROTOTYPE( void discard_preallocated_blocks, (struct inode *rip)	);
_PROTOTYPE( block_t alloc_block, (struct inode *rip, block_t goal)	);
_PROTOTYPE( void free_block, (struct super_block *sp, bit_t bit)	);

/* cache.c */
_PROTOTYPE( void buf_pool, (int bufs)					);
_PROTOTYPE( void flushall, (dev_t dev)					);
_PROTOTYPE( struct buf *get_block, (dev_t dev, block_t block,int only_search));
_PROTOTYPE( void invalidate, (dev_t device)				);
_PROTOTYPE( void put_block, (struct buf *bp, int block_type)		);
_PROTOTYPE( void set_blocksize, (unsigned int blocksize)		);
_PROTOTYPE( void rw_scattered, (dev_t dev,
			struct buf **bufq, int bufqsize, int rw_flag)	);

/* device.c */
_PROTOTYPE( int block_dev_io, (int op, dev_t dev, endpoint_t proc_e,
                               void *buf, u64_t pos, size_t bytes)     );
_PROTOTYPE( int dev_open, (endpoint_t driver_e, dev_t dev, endpoint_t proc_e,
				int flags)      );
_PROTOTYPE( void dev_close, (endpoint_t driver_e, dev_t dev)		);
_PROTOTYPE( int fs_new_driver, (void)					);

/* ialloc.c */
_PROTOTYPE( struct inode *alloc_inode, (struct inode *parent, mode_t bits));
_PROTOTYPE( void free_inode, (struct inode *rip)			);

/* inode.c */
_PROTOTYPE( void dup_inode, (struct inode *ip)				);
_PROTOTYPE( struct inode *find_inode, (dev_t dev, ino_t numb)		);
_PROTOTYPE( int fs_putnode, (void)					);
_PROTOTYPE( void init_inode_cache, (void)				);
_PROTOTYPE( struct inode *get_inode, (dev_t dev, ino_t numb)		);
_PROTOTYPE( void put_inode, (struct inode *rip)				);
_PROTOTYPE( void update_times, (struct inode *rip)			);
_PROTOTYPE( void rw_inode, (struct inode *rip, int rw_flag)		);

/* link.c */
_PROTOTYPE( int fs_ftrunc, (void)					);
_PROTOTYPE( int fs_link, (void)						);
_PROTOTYPE( int fs_rdlink, (void)					);
_PROTOTYPE( int fs_rename, (void)					);
_PROTOTYPE( int fs_unlink, (void)					);
_PROTOTYPE( int truncate_inode, (struct inode *rip, off_t len)		);

/* misc.c */
_PROTOTYPE( int fs_flush, (void)					);
_PROTOTYPE( int fs_sync, (void)						);

/* mount.c */
_PROTOTYPE( int fs_mountpoint, (void)					);
_PROTOTYPE( int fs_readsuper, (void)                                    );
_PROTOTYPE( int fs_unmount, (void)					);

/* open.c */
_PROTOTYPE( int fs_create, (void)					);
_PROTOTYPE( int fs_inhibread, (void)					);
_PROTOTYPE( int fs_mkdir, (void)					);
_PROTOTYPE( int fs_mknod, (void)					);
_PROTOTYPE( int fs_slink, (void)					);

/* path.c */
_PROTOTYPE( int fs_lookup, (void)					);
_PROTOTYPE( struct inode *advance, (struct inode *dirp,
				char string[NAME_MAX + 1], int chk_perm));
_PROTOTYPE( int search_dir, (struct inode *ldir_ptr,
			char string [NAME_MAX + 1], ino_t *numb, int flag,
			     int check_permissions, int ftype)		);

/* protect.c */
_PROTOTYPE( int fs_chmod, (void)					);
_PROTOTYPE( int fs_chown, (void)					);
_PROTOTYPE( int fs_getdents, (void)					);
_PROTOTYPE( int forbidden, (struct inode *rip, mode_t access_desired)	);
_PROTOTYPE( int read_only, (struct inode *ip)				);

/* read.c */
_PROTOTYPE( int fs_breadwrite, (void)					);
_PROTOTYPE( int fs_readwrite, (void)					);
_PROTOTYPE( void read_ahead, (void)					);
_PROTOTYPE( block_t read_map, (struct inode *rip, off_t pos)		);
_PROTOTYPE( block_t rd_indir, (struct buf *bp, int index)		);

/* stadir.c */
_PROTOTYPE( int fs_fstatfs, (void)					);
_PROTOTYPE( int fs_stat, (void)						);
_PROTOTYPE( int fs_statvfs, (void)					);

/* super.c */
_PROTOTYPE( unsigned int get_block_size, (dev_t dev)			);
_PROTOTYPE( struct super_block *get_super, (dev_t dev)			);
_PROTOTYPE( int read_super, (struct super_block *sp)			);
_PROTOTYPE( void write_super, (struct super_block *sp)			);
_PROTOTYPE( struct group_desc* get_group_desc, (unsigned int bnum)      );

/* time.c */
_PROTOTYPE( int fs_utime, (void)					);

/* utility.c */
_PROTOTYPE( time_t clock_time, (void)					);
_PROTOTYPE( unsigned conv2, (int norm, int w)				);
_PROTOTYPE( long conv4, (int norm, long x)				);
_PROTOTYPE( void mfs_nul_f, (char *file, int line, char *str,
                             unsigned int len, unsigned int maxlen)     );
_PROTOTYPE( int min, (unsigned int l, unsigned int r)                   );
_PROTOTYPE( int no_sys, (void)						);
_PROTOTYPE( void sanitycheck, (char *file, int line)			);
#define SANITYCHECK sanitycheck(__FILE__, __LINE__)
_PROTOTYPE( int ansi_strcmp, (register const char* ansi_s,
				register const char *s2,
				register size_t ansi_s_length)		);
_PROTOTYPE( bit_t setbit, (bitchunk_t *bitmap, bit_t max_bits,
			   unsigned int word));
_PROTOTYPE( bit_t setbyte, (bitchunk_t *bitmap, bit_t max_bits,
			    unsigned int word));
_PROTOTYPE( int unsetbit, (bitchunk_t *bitmap, bit_t bit)		);

/* write.c */
_PROTOTYPE( struct buf *new_block, (struct inode *rip, off_t position)	);
_PROTOTYPE( void zero_block, (struct buf *bp)				);
_PROTOTYPE( int write_map, (struct inode *, off_t, block_t, int)	);

#endif /* EXT2_PROTO_H */