2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
31 * Kernel/lock manager protocol definition
32 * Copyright (C) 1986 Sun Microsystems, Inc.
34 * protocol used between the UNIX kernel (the "client") and the
35 * local lock manager. The local lock manager is a deamon running
41 %/*static char sccsid[] = "from: @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro";*/
42 %/*static char sccsid[] = "from: @(#)klm_prot.x 2.1 88/08/01 4.0 RPCSRC";*/
43 %static const char rcsid[] =
45 %#endif /* not lint */
48 const LM_MAXSTRLEN = 1024;
51 * lock manager status returns
54 klm_granted = 0, /* lock is granted */
55 klm_denied = 1, /* lock is denied */
56 klm_denied_nolocks = 2, /* no lock entry available */
57 klm_working = 3 /* lock is being processed */
61 * lock manager lock identifier
64 string server_name<LM_MAXSTRLEN>;
65 netobj fh; /* a counted file handle */
66 int pid; /* holder of the lock */
67 unsigned l_offset; /* beginning offset of the lock */
68 unsigned l_len; /* byte length of the lock;
69 * zero means through end of file */
73 * lock holder identifier
76 bool exclusive; /* FALSE if shared lock */
77 int svid; /* holder of the lock (pid) */
78 unsigned l_offset; /* beginning offset of the lock */
79 unsigned l_len; /* byte length of the lock;
80 * zero means through end of file */
84 * reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
91 * reply to a KLM_TEST call
93 union klm_testrply switch (klm_stats stat) {
95 struct klm_holder holder;
96 default: /* All other cases return no arguments */
102 * arguments to KLM_LOCK
104 struct klm_lockargs {
107 struct klm_lock alock;
111 * arguments to KLM_TEST
113 struct klm_testargs {
115 struct klm_lock alock;
119 * arguments to KLM_UNLOCK
121 struct klm_unlockargs {
122 struct klm_lock alock;
128 klm_testrply KLM_TEST (struct klm_testargs) = 1;
130 klm_stat KLM_LOCK (struct klm_lockargs) = 2;
132 klm_stat KLM_CANCEL (struct klm_lockargs) = 3;
133 /* klm_granted=> the cancel request fails due to lock is already granted */
134 /* klm_denied=> the cancel request successfully aborts
137 klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4;