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Diffstat (limited to 'sys/nfs/nfsrvcache.h')
| -rw-r--r-- | sys/nfs/nfsrvcache.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/sys/nfs/nfsrvcache.h b/sys/nfs/nfsrvcache.h new file mode 100644 index 0000000..eec5850 --- /dev/null +++ b/sys/nfs/nfsrvcache.h @@ -0,0 +1,91 @@ +/* + * 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 + * $FreeBSD$ + */ + + +#ifndef _NFS_NFSRVCACHE_H_ +#define _NFS_NFSRVCACHE_H_ + +#include <sys/queue.h> + +/* + * 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_int32_t 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 |
