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/*
* Copyright (c) 1995 - 2002 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $arla: xfs_node.h,v 1.33 2003/01/25 18:48:28 lha Exp $ */
#ifndef _xfs_xnode_h
#define _xfs_xnode_h
#include <sys/types.h>
#include <sys/time.h>
#ifdef HAVE_KERNEL_LF_ADVLOCK
#include <sys/lockf.h>
#endif
#include <xfs/xfs_attr.h>
#include <xfs/xfs_message.h>
#include <xfs/xfs_queue.h>
#ifdef __APPLE__
typedef struct lock__bsd__ xfs_vnode_lock;
#else
typedef struct lock xfs_vnode_lock;
#endif
struct xfs_node {
#if defined(__NetBSD_Version__) && __NetBSD_Version__ >= 105280000
struct genfs_node gnode;
#endif
struct vnode *vn;
struct vnode *data;
struct vattr attr;
uint32_t offset;
u_int flags;
u_int tokens;
xfs_handle handle;
xfs_pag_t id[MAXRIGHTS];
u_char rights[MAXRIGHTS];
u_char anonrights;
#if defined(HAVE_KERNEL_LOCKMGR) || defined(HAVE_KERNEL_DEBUGLOCKMGR)
xfs_vnode_lock lock;
#else
int vnlocks;
#endif
#ifdef HAVE_KERNEL_LF_ADVLOCK
struct lockf *lockf;
#endif
struct ucred *rd_cred;
struct ucred *wr_cred;
NNPQUEUE_ENTRY(xfs_node) nn_hash;
};
#define XN_HASHSIZE 101
NNPQUEUE_HEAD(nh_node_list, xfs_node);
struct xfs_nodelist_head {
struct nh_node_list nh_nodelist[XN_HASHSIZE];
};
void nnfs_init_head(struct xfs_nodelist_head *);
void xfs_node_purge(struct xfs_nodelist_head *,
void (*func)(struct xfs_node *));
struct xfs_node *
xfs_node_find(struct xfs_nodelist_head *, xfs_handle *);
void xfs_remove_node(struct xfs_nodelist_head *, struct xfs_node *);
void xfs_insert(struct xfs_nodelist_head *, struct xfs_node *);
int xfs_update_handle(struct xfs_nodelist_head *, xfs_handle *,
xfs_handle *);
struct xfs;
int xfs_getnewvnode(struct xfs *xfsp, struct vnode **vpp,
struct xfs_handle *handle);
#define DATA_FROM_VNODE(vp) DATA_FROM_XNODE(VNODE_TO_XNODE(vp))
#define DATA_FROM_XNODE(xp) ((xp)->data)
#define XNODE_TO_VNODE(xp) ((xp)->vn)
#define VNODE_TO_XNODE(vp) ((struct xfs_node *) (vp)->v_data)
#if defined(HAVE_ONE_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp))
#elif defined(HAVE_TWO_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag))
#elif defined(HAVE_THREE_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag), (proc))
#else
#error what kind of vget
#endif
#ifndef HAVE_VOP_T
typedef int vop_t (void *);
#endif
#ifdef LK_INTERLOCK
#define HAVE_LK_INTERLOCK
#else
#define LK_INTERLOCK 0
#endif
#ifdef LK_RETRY
#define HAVE_LK_RETRY
#else
#define LK_RETRY 0
#endif
/*
* This is compat code for older vfs that have a
* vget that only takes an integer (really boolean) argument
* that the returned vnode will be returned locked
*/
#ifdef LK_EXCLUSIVE
#define HAVE_LK_EXCLUSIVE 1
#else
#define LK_EXCLUSIVE 1
#endif
#ifdef LK_SHARED
#define HAVE_LK_SHARED 1
#else
#define LK_SHARED 1
#endif
void xfs_update_write_cred(struct xfs_node *, struct ucred *);
void xfs_update_read_cred(struct xfs_node *, struct ucred *);
#endif /* _xfs_xnode_h */
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