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/* @(#)nfs_clnt.h 1.2 88/07/15 NFSSRC4.0 from 2.19 88/02/08 SMI */
/* Copyright (C) 1988, Sun Microsystems Inc. */
/*
* HISTORY
* 9-May-89 Peter King (king) at NeXT
* Sun Bugfixes: 1010518 - Fix for close-to-open consistency.
*
* 19-Dec-88 Peter King (king) at NeXT
* NFS 4.0 Changes: Added constants for flexible attribute caching.
*/
#ifndef __NFS_CLNT_HEADER__
#define __NFS_CLNT_HEADER__
#if NeXT
#import <netinet/in.h>
#endif
/*
* vfs pointer to mount info
*/
#define vftomi(vfsp) ((struct mntinfo *)((vfsp)->vfs_data))
/*
* vnode pointer to mount info
*/
#define vtomi(vp) ((struct mntinfo *)(((vp)->v_vfsp)->vfs_data))
/*
* NFS vnode to server's block size
*/
#define vtoblksz(vp) (vtomi(vp)->mi_bsize)
#define HOSTNAMESZ 32
#define ACREGMIN 3 /* min secs to hold cached file attr */
#define ACREGMAX 60 /* max secs to hold cached file attr */
#define ACDIRMIN 30 /* min secs to hold cached dir attr */
#define ACDIRMAX 60 /* max secs to hold cached dir attr */
#define ACMINMAX 3600 /* 1 hr is longest min timeout */
#define ACMAXMAX 36000 /* 10 hr is longest max timeout */
/*
* NFS private data per mounted file system
*/
struct mntinfo {
struct sockaddr_in mi_addr; /* server's address */
struct vnode *mi_rootvp; /* root vnode */
u_int mi_hard : 1; /* hard or soft mount */
u_int mi_printed : 1;/* not responding message printed */
u_int mi_int : 1; /* interrupts allowed on hard mount */
u_int mi_down : 1; /* server is down */
u_int mi_noac : 1; /* don't cache attributes */
u_int mi_nocto : 1; /* no close-to-open consistency */
int mi_refct; /* active vnodes for this vfs */
long mi_tsize; /* transfer size (bytes) */
long mi_stsize; /* server's max transfer size (bytes) */
long mi_bsize; /* server's disk block size */
int mi_mntno; /* kludge to set client rdev for stat*/
int mi_timeo; /* inital timeout in 10th sec */
int mi_retrans; /* times to retry request */
char mi_hostname[HOSTNAMESZ]; /* server's hostname */
char *mi_netname; /* server's netname */
int mi_netnamelen; /* length of netname */
int mi_authflavor; /* authentication type */
u_int mi_acregmin; /* min secs to hold cached file attr */
u_int mi_acregmax; /* max secs to hold cached file attr */
u_int mi_acdirmin; /* min secs to hold cached dir attr */
u_int mi_acdirmax; /* max secs to hold cached dir attr */
};
/*
* Mark cached attributes invalid
*/
#define PURGE_ATTRCACHE(vp) (vtor(vp)->r_attrtime.tv_sec = 0)
/*
* If returned error is ESTALE flush all caches.
*/
/*
* You should not purge if you are a biod.
*/
#define PURGE_STALE_FH(errno, vp) if ((errno) == ESTALE) {nfs_invalidate_caches(vp);}
/*
* Is cache valid?
* Swap is always valid
* otherwise if mtime matches cached mtime it is valid
*/
#define CACHE_VALID(rp, mtime) \
((rtov(rp)->v_flag & VISSWAP) == VISSWAP || \
((mtime).tv_sec == (rp)->r_attr.va_mtime.tv_sec && \
(mtime).tv_usec == (rp)->r_attr.va_mtime.tv_usec))
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.