808a36ef65
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
139 lines
3.6 KiB
Plaintext
139 lines
3.6 KiB
Plaintext
/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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/*
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* Kernel/lock manager protocol definition
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* Copyright (C) 1986 Sun Microsystems, Inc.
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*
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* protocol used between the UNIX kernel (the "client") and the
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* local lock manager. The local lock manager is a deamon running
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* above the kernel.
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*/
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#ifndef RPC_HDR
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%#ifndef lint
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%/*static char sccsid[] = "from: @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro";*/
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%/*static char sccsid[] = "from: @(#)klm_prot.x 2.1 88/08/01 4.0 RPCSRC";*/
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%static char rcsid[] = "$FreeBSD$";
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%#endif /* not lint */
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#endif
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const LM_MAXSTRLEN = 1024;
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/*
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* lock manager status returns
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*/
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enum klm_stats {
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klm_granted = 0, /* lock is granted */
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klm_denied = 1, /* lock is denied */
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klm_denied_nolocks = 2, /* no lock entry available */
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klm_working = 3 /* lock is being processed */
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};
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/*
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* lock manager lock identifier
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*/
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struct klm_lock {
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string server_name<LM_MAXSTRLEN>;
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netobj fh; /* a counted file handle */
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int pid; /* holder of the lock */
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unsigned l_offset; /* beginning offset of the lock */
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unsigned l_len; /* byte length of the lock;
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* zero means through end of file */
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};
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/*
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* lock holder identifier
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*/
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struct klm_holder {
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bool exclusive; /* FALSE if shared lock */
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int svid; /* holder of the lock (pid) */
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unsigned l_offset; /* beginning offset of the lock */
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unsigned l_len; /* byte length of the lock;
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* zero means through end of file */
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};
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/*
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* reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
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*/
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struct klm_stat {
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klm_stats stat;
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};
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/*
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* reply to a KLM_TEST call
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*/
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union klm_testrply switch (klm_stats stat) {
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case klm_denied:
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struct klm_holder holder;
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default: /* All other cases return no arguments */
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void;
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};
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/*
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* arguments to KLM_LOCK
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*/
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struct klm_lockargs {
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bool block;
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bool exclusive;
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struct klm_lock alock;
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};
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/*
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* arguments to KLM_TEST
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*/
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struct klm_testargs {
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bool exclusive;
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struct klm_lock alock;
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};
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/*
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* arguments to KLM_UNLOCK
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*/
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struct klm_unlockargs {
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struct klm_lock alock;
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};
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program KLM_PROG {
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version KLM_VERS {
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klm_testrply KLM_TEST (struct klm_testargs) = 1;
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klm_stat KLM_LOCK (struct klm_lockargs) = 2;
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klm_stat KLM_CANCEL (struct klm_lockargs) = 3;
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/* klm_granted=> the cancel request fails due to lock is already granted */
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/* klm_denied=> the cancel request successfully aborts
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lock request */
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klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4;
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} = 1;
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} = 100020;
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