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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*
27: * Copyright (c) 1989, 1993
28: * The Regents of the University of California. All rights reserved.
29: *
30: * This code is derived from software contributed to Berkeley by
31: * Rick Macklem at The University of Guelph.
32: *
33: * Redistribution and use in source and binary forms, with or without
34: * modification, are permitted provided that the following conditions
35: * are met:
36: * 1. Redistributions of source code must retain the above copyright
37: * notice, this list of conditions and the following disclaimer.
38: * 2. Redistributions in binary form must reproduce the above copyright
39: * notice, this list of conditions and the following disclaimer in the
40: * documentation and/or other materials provided with the distribution.
41: * 3. All advertising materials mentioning features or use of this software
42: * must display the following acknowledgement:
43: * This product includes software developed by the University of
44: * California, Berkeley and its contributors.
45: * 4. Neither the name of the University nor the names of its contributors
46: * may be used to endorse or promote products derived from this software
47: * without specific prior written permission.
48: *
49: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59: * SUCH DAMAGE.
60: *
61: * @(#)nfsrvcache.h 8.3 (Berkeley) 3/30/95
62: * FreeBSD-Id: nfsrvcache.h,v 1.9 1997/06/03 17:22:47 dfr Exp $
63: */
64:
65:
66: #ifndef _NFS_NFSRVCACHE_H_
67: #define _NFS_NFSRVCACHE_H_
68:
69: /*
70: * Definitions for the server recent request cache
71: */
72:
73: #define NFSRVCACHESIZ 64
74:
75: struct nfsrvcache {
76: TAILQ_ENTRY(nfsrvcache) rc_lru; /* LRU chain */
77: LIST_ENTRY(nfsrvcache) rc_hash; /* Hash chain */
78: u_long rc_xid; /* rpc id number */
79: union {
80: struct mbuf *ru_repmb; /* Reply mbuf list OR */
81: int ru_repstat; /* Reply status */
82: } rc_un;
83: union nethostaddr rc_haddr; /* Host address */
84: u_int32_t rc_proc; /* rpc proc number */
85: u_char rc_state; /* Current state of request */
86: u_char rc_flag; /* Flag bits */
87: };
88:
89: #define rc_reply rc_un.ru_repmb
90: #define rc_status rc_un.ru_repstat
91: #define rc_inetaddr rc_haddr.had_inetaddr
92: #define rc_nam rc_haddr.had_nam
93:
94: /* Cache entry states */
95: #define RC_UNUSED 0
96: #define RC_INPROG 1
97: #define RC_DONE 2
98:
99: /* Return values */
100: #define RC_DROPIT 0
101: #define RC_REPLY 1
102: #define RC_DOIT 2
103: #define RC_CHECKIT 3
104:
105: /* Flag bits */
106: #define RC_LOCKED 0x01
107: #define RC_WANTED 0x02
108: #define RC_REPSTATUS 0x04
109: #define RC_REPMBUF 0x08
110: #define RC_NQNFS 0x10
111: #define RC_INETADDR 0x20
112: #define RC_NAM 0x40
113:
114: #endif
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