[apple/xnu.git] / bsd / nfs / nfsrvcache.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)nfsrvcache.h	8.3 (Berkeley) 3/30/95
 * FreeBSD-Id: nfsrvcache.h,v 1.9 1997/06/03 17:22:47 dfr Exp $
 */


#ifndef _NFS_NFSRVCACHE_H_
#define _NFS_NFSRVCACHE_H_

#include <sys/appleapiopts.h>

#ifdef __APPLE_API_PRIVATE
/*
 * Definitions for the server recent request cache
 */

#define	NFSRVCACHESIZ	64

struct nfsrvcache {
	TAILQ_ENTRY(nfsrvcache) rc_lru;		/* LRU chain */
	LIST_ENTRY(nfsrvcache) rc_hash;		/* Hash chain */
	u_long	rc_xid;				/* rpc id number */
	union {
		struct mbuf *ru_repmb;		/* Reply mbuf list OR */
		int ru_repstat;			/* Reply status */
	} rc_un;
	union nethostaddr rc_haddr;		/* Host address */
	u_int32_t rc_proc;			/* rpc proc number */
	u_char	rc_state;		/* Current state of request */
	u_char	rc_flag;		/* Flag bits */
};

#define	rc_reply	rc_un.ru_repmb
#define	rc_status	rc_un.ru_repstat
#define	rc_inetaddr	rc_haddr.had_inetaddr
#define	rc_nam		rc_haddr.had_nam

/* Cache entry states */
#define	RC_UNUSED	0
#define	RC_INPROG	1
#define	RC_DONE		2

/* Return values */
#define	RC_DROPIT	0
#define	RC_REPLY	1
#define	RC_DOIT		2
#define	RC_CHECKIT	3

/* Flag bits */
#define	RC_LOCKED	0x01
#define	RC_WANTED	0x02
#define	RC_REPSTATUS	0x04
#define	RC_REPMBUF	0x08
#define	RC_NQNFS	0x10
#define	RC_INETADDR	0x20
#define	RC_NAM		0x40

#endif /* __APPLE_API_PRIVATE */
#endif /* _NFS_NFSRVCACHE_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	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
9bccf70c A	69	#include <sys/appleapiopts.h>
	70
	71	#ifdef __APPLE_API_PRIVATE
1c79356b A	72	/*
	73	* Definitions for the server recent request cache
	74	*/
	75
	76	#define NFSRVCACHESIZ 64
	77
	78	struct nfsrvcache {
	79	TAILQ_ENTRY(nfsrvcache) rc_lru; /* LRU chain */
	80	LIST_ENTRY(nfsrvcache) rc_hash; /* Hash chain */
	81	u_long rc_xid; /* rpc id number */
	82	union {
	83	struct mbuf ru_repmb; / Reply mbuf list OR */
	84	int ru_repstat; /* Reply status */
	85	} rc_un;
	86	union nethostaddr rc_haddr; /* Host address */
	87	u_int32_t rc_proc; /* rpc proc number */
	88	u_char rc_state; /* Current state of request */
	89	u_char rc_flag; /* Flag bits */
	90	};
	91
	92	#define rc_reply rc_un.ru_repmb
	93	#define rc_status rc_un.ru_repstat
	94	#define rc_inetaddr rc_haddr.had_inetaddr
	95	#define rc_nam rc_haddr.had_nam
	96
	97	/* Cache entry states */
	98	#define RC_UNUSED 0
	99	#define RC_INPROG 1
	100	#define RC_DONE 2
	101
	102	/* Return values */
	103	#define RC_DROPIT 0
	104	#define RC_REPLY 1
	105	#define RC_DOIT 2
	106	#define RC_CHECKIT 3
	107
	108	/* Flag bits */
	109	#define RC_LOCKED 0x01
	110	#define RC_WANTED 0x02
	111	#define RC_REPSTATUS 0x04
	112	#define RC_REPMBUF 0x08
	113	#define RC_NQNFS 0x10
	114	#define RC_INETADDR 0x20
	115	#define RC_NAM 0x40
	116
9bccf70c A	117	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	118	#endif /* _NFS_NFSRVCACHE_H_ */