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minix/servers/mfs/proto.h
David van Moolenbroek 0ac1aaccca Limited support for nested FS->VFS requests during VFS->FS call. 
- Changed VFS-FS protocol to only store OK or negative error code in
  m_type field of reply messages.
- Changed VFS to treat nonzero positive replies from FS as requests.
- Added backwards compatibility to VFS and MFS.
No protection of global data structures is provided in VFS, so many
VFS calls cannot be made safely by FS servers during many FS calls.
Use with caution (or, preferably, not at all).
2009-05-11 10:02:28 +00:00

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/* Function prototypes. */
#include "timers.h"
/* Structs used in prototypes must be declared as such first. */
struct buf;
struct filp;
struct inode;
struct super_block;
int fs_putnode(void);
int fs_getnode(void);
int fs_pipe(void);
int fs_clone_opcl(void);
int fs_new_driver(void);
int fs_ftrunc(void);
int fs_chown(void);
int fs_chmod(void);
int fs_inhibread(void);
int fs_stat(void);
int fs_utime(void);
int fs_fstatfs(void);
int fs_unmount(void);
int fs_trunc(void);
int fs_sync(void);
int fs_stime(void);
int fs_getdents_o(void);
int fs_getdents(void);
int fs_flush(void);
void init_inode_cache(void);
/* cache.c */
_PROTOTYPE( zone_t alloc_zone, (Dev_t dev, zone_t z) );
_PROTOTYPE( void flushall, (Dev_t dev) );
_PROTOTYPE( void free_zone, (Dev_t dev, zone_t numb) );
_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, (int blocksize) );
_PROTOTYPE( void rw_scattered, (Dev_t dev,
struct buf **bufq, int bufqsize, int rw_flag) );
_PROTOTYPE( void buf_pool, (void) );
/* device.c */
_PROTOTYPE( int block_dev_io, (int op, Dev_t dev, int proc, void *buf,
u64_t pos, int bytes, int flags) );
_PROTOTYPE( int dev_open, (endpoint_t driver_e, Dev_t dev, int proc,
int flags) );
_PROTOTYPE( void dev_close, (endpoint_t driver_e, Dev_t dev) );
/* inode.c */
_PROTOTYPE( struct inode *find_inode, (Dev_t dev, int numb) );
_PROTOTYPE( struct inode *alloc_inode, (dev_t dev, mode_t bits) );
_PROTOTYPE( void dup_inode, (struct inode *ip) );
_PROTOTYPE( void free_inode, (Dev_t dev, Ino_t numb) );
_PROTOTYPE( struct inode *get_inode, (Dev_t dev, int 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) );
_PROTOTYPE( void wipe_inode, (struct inode *rip) );
/* link.c */
int fs_link_o(void);
int fs_link_s(void);
int fs_rdlink_o(void);
int fs_rdlink_so(void);
int fs_rdlink_s(void);
int fs_rename_o(void);
int fs_rename_s(void);
int fs_unlink_o(void);
int fs_unlink_s(void);
_PROTOTYPE( int truncate_inode, (struct inode *rip, off_t len) );
_PROTOTYPE( int freesp_inode, (struct inode *rip, off_t st, off_t end) );
/* lock.c */
_PROTOTYPE( int lock_op, (struct filp *f, int req) );
_PROTOTYPE( void lock_revive, (void) );
/* main.c */
_PROTOTYPE( void reply, (int who, message *m_out) );
/* misc.c */
_PROTOTYPE( int do_dup, (void) );
_PROTOTYPE( int do_exit, (void) );
_PROTOTYPE( int do_fcntl, (void) );
_PROTOTYPE( int do_exec, (void) );
_PROTOTYPE( int do_revive, (void) );
_PROTOTYPE( int do_set, (void) );
_PROTOTYPE( int do_sync, (void) );
_PROTOTYPE( int do_fsync, (void) );
_PROTOTYPE( int do_reboot, (void) );
_PROTOTYPE( int do_svrctl, (void) );
_PROTOTYPE( int do_getsysinfo, (void) );
/* mount.c */
int fs_mountpoint_o(void);
int fs_mountpoint_s(void);
int fs_readsuper_o(void);
int fs_readsuper_s(void);
_PROTOTYPE( int do_mount, (void) );
_PROTOTYPE( int do_umount, (void) );
_PROTOTYPE( int unmount, (Dev_t dev) );
/* open.c */
int fs_create_o(void);
int fs_create_s(void);
int fs_mkdir_o(void);
int fs_mkdir_s(void);
int fs_mknod_o(void);
int fs_mknod_s(void);
int fs_slink_o(void);
int fs_slink_s(void);
int fs_newnode(void);
_PROTOTYPE( int do_close, (void) );
_PROTOTYPE( int do_creat, (void) );
_PROTOTYPE( int do_lseek, (void) );
_PROTOTYPE( int do_mknod, (void) );
_PROTOTYPE( int do_mkdir, (void) );
_PROTOTYPE( int do_open, (void) );
_PROTOTYPE( int do_slink, (void) );
/* path.c */
int lookup_o(void);
int fs_lookup_s(void);
_PROTOTYPE( struct inode *advance_o,(struct inode **dirp,
char string[NAME_MAX]) );
_PROTOTYPE( struct inode *advance_nocheck,(struct inode **dirp,
char string[NAME_MAX]) );
_PROTOTYPE( int search_dir, (struct inode *ldir_ptr,
char string [NAME_MAX], ino_t *numb, int flag) );
_PROTOTYPE( int search_dir_nocheck, (struct inode *ldir_ptr,
char string [NAME_MAX], ino_t *numb, int flag) );
_PROTOTYPE( struct inode *eat_path_o, (char *path) );
_PROTOTYPE( struct inode *last_dir_o, (char *path, char string [NAME_MAX]));
_PROTOTYPE( struct inode *parse_path_o, (char *path,
char string[NAME_MAX], int action) );
/* protect.c */
int fs_access_o(void);
_PROTOTYPE( int do_access, (void) );
_PROTOTYPE( int do_chmod, (void) );
_PROTOTYPE( int do_chown, (void) );
_PROTOTYPE( int do_umask, (void) );
_PROTOTYPE( int forbidden, (struct inode *rip, mode_t access_desired) );
_PROTOTYPE( int read_only, (struct inode *ip) );
/* read.c */
int fs_breadwrite_o(void);
int fs_breadwrite_s(void);
int fs_readwrite_o(void);
int fs_readwrite_s(void);
_PROTOTYPE( int do_read, (void) );
_PROTOTYPE( struct buf *rahead, (struct inode *rip, block_t baseblock,
u64_t position, unsigned bytes_ahead) );
_PROTOTYPE( void read_ahead, (void) );
_PROTOTYPE( block_t read_map, (struct inode *rip, off_t pos) );
_PROTOTYPE( int read_write, (int rw_flag) );
_PROTOTYPE( zone_t rd_indir, (struct buf *bp, int index) );
/* stadir.c */
_PROTOTYPE( int do_chdir, (void) );
_PROTOTYPE( int do_fchdir, (void) );
_PROTOTYPE( int do_chroot, (void) );
_PROTOTYPE( int do_fstat, (void) );
_PROTOTYPE( int do_stat, (void) );
_PROTOTYPE( int do_fstatfs, (void) );
_PROTOTYPE( int do_rdlink, (void) );
_PROTOTYPE( int do_lstat, (void) );
/* super.c */
_PROTOTYPE( bit_t alloc_bit, (struct super_block *sp, int map, bit_t origin));
_PROTOTYPE( void free_bit, (struct super_block *sp, int map,
bit_t bit_returned) );
_PROTOTYPE( struct super_block *get_super, (Dev_t dev) );
_PROTOTYPE( int mounted, (struct inode *rip) );
_PROTOTYPE( int read_super, (struct super_block *sp) );
_PROTOTYPE( int get_block_size, (dev_t dev) );
/* time.c */
_PROTOTYPE( int do_stime, (void) );
_PROTOTYPE( int do_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( int fetch_name, (char *path, int len, int flag) );
_PROTOTYPE( int no_sys, (void) );
_PROTOTYPE( int isokendpt_f, (char *f, int l, int e, int *p, int ft));
_PROTOTYPE( void mfs_nul_f, (char *file, int line, char *str, int len, int maxlen));
_PROTOTYPE( int mfs_min_f, (char *file, int line, int len1, int len2) );
_PROTOTYPE( void sanitycheck, (char *file, int line) );
#define SANITYCHECK sanitycheck(__FILE__, __LINE__)
#define okendpt(e, p) isokendpt_f(__FILE__, __LINE__, (e), (p), 1)
#define isokendpt(e, p) isokendpt_f(__FILE__, __LINE__, (e), (p), 0)
/* write.c */
_PROTOTYPE( void clear_zone, (struct inode *rip, off_t pos, int flag) );
_PROTOTYPE( int do_write, (void) );
_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, zone_t, int) );
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