mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
135 lines
3.4 KiB
Plaintext
135 lines
3.4 KiB
Plaintext
/* @(#)klm_prot.x 2.1 88/08/01 4.0 RPCSRC */
|
|
/* @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro */
|
|
|
|
/*
|
|
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
|
|
* unrestricted use provided that this legend is included on all tape
|
|
* media and as a part of the software program in whole or part. Users
|
|
* may copy or modify Sun RPC without charge, but are not authorized
|
|
* to license or distribute it to anyone else except as part of a product or
|
|
* program developed by the user.
|
|
*
|
|
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
|
|
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
|
|
*
|
|
* Sun RPC is provided with no support and without any obligation on the
|
|
* part of Sun Microsystems, Inc. to assist in its use, correction,
|
|
* modification or enhancement.
|
|
*
|
|
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
|
|
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
|
|
* OR ANY PART THEREOF.
|
|
*
|
|
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
|
|
* or profits or other special, indirect and consequential damages, even if
|
|
* Sun has been advised of the possibility of such damages.
|
|
*
|
|
* Sun Microsystems, Inc.
|
|
* 2550 Garcia Avenue
|
|
* Mountain View, California 94043
|
|
*/
|
|
|
|
/*
|
|
* Kernel/lock manager protocol definition
|
|
* Copyright (C) 1986 Sun Microsystems, Inc.
|
|
*
|
|
* protocol used between the UNIX kernel (the "client") and the
|
|
* local lock manager. The local lock manager is a deamon running
|
|
* above the kernel.
|
|
*/
|
|
|
|
const LM_MAXSTRLEN = 1024;
|
|
|
|
/*
|
|
* lock manager status returns
|
|
*/
|
|
enum klm_stats {
|
|
klm_granted = 0, /* lock is granted */
|
|
klm_denied = 1, /* lock is denied */
|
|
klm_denied_nolocks = 2, /* no lock entry available */
|
|
klm_working = 3 /* lock is being processed */
|
|
};
|
|
|
|
/*
|
|
* lock manager lock identifier
|
|
*/
|
|
struct klm_lock {
|
|
string server_name<LM_MAXSTRLEN>;
|
|
netobj fh; /* a counted file handle */
|
|
int pid; /* holder of the lock */
|
|
unsigned l_offset; /* beginning offset of the lock */
|
|
unsigned l_len; /* byte length of the lock;
|
|
* zero means through end of file */
|
|
};
|
|
|
|
/*
|
|
* lock holder identifier
|
|
*/
|
|
struct klm_holder {
|
|
bool exclusive; /* FALSE if shared lock */
|
|
int svid; /* holder of the lock (pid) */
|
|
unsigned l_offset; /* beginning offset of the lock */
|
|
unsigned l_len; /* byte length of the lock;
|
|
* zero means through end of file */
|
|
};
|
|
|
|
/*
|
|
* reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
|
|
*/
|
|
struct klm_stat {
|
|
klm_stats stat;
|
|
};
|
|
|
|
/*
|
|
* reply to a KLM_TEST call
|
|
*/
|
|
union klm_testrply switch (klm_stats stat) {
|
|
case klm_denied:
|
|
struct klm_holder holder;
|
|
default: /* All other cases return no arguments */
|
|
void;
|
|
};
|
|
|
|
|
|
/*
|
|
* arguments to KLM_LOCK
|
|
*/
|
|
struct klm_lockargs {
|
|
bool block;
|
|
bool exclusive;
|
|
struct klm_lock alock;
|
|
};
|
|
|
|
/*
|
|
* arguments to KLM_TEST
|
|
*/
|
|
struct klm_testargs {
|
|
bool exclusive;
|
|
struct klm_lock alock;
|
|
};
|
|
|
|
/*
|
|
* arguments to KLM_UNLOCK
|
|
*/
|
|
struct klm_unlockargs {
|
|
struct klm_lock alock;
|
|
};
|
|
|
|
program KLM_PROG {
|
|
version KLM_VERS {
|
|
|
|
klm_testrply KLM_TEST (struct klm_testargs) = 1;
|
|
|
|
klm_stat KLM_LOCK (struct klm_lockargs) = 2;
|
|
|
|
klm_stat KLM_CANCEL (struct klm_lockargs) = 3;
|
|
/* klm_granted=> the cancel request fails due to lock is already granted */
|
|
/* klm_denied=> the cancel request successfully aborts
|
|
lock request */
|
|
|
|
klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4;
|
|
} = 1;
|
|
} = 100020;
|
|
|