fis-gtm/sr_unix_cm/omi_prc_unlc.c

75 lines
1.7 KiB
C

/****************************************************************
* *
* Copyright 2001, 2007 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/*
* omi_prc_unlc.c ---
*
* Process an UNLOCKCLIENT request.
*
*/
#ifndef lint
static char rcsid[] = "$Header:$";
#endif
#include "mdef.h"
#include "gtm_string.h"
#include "omi.h"
#include "error.h"
#include "mlkdef.h"
#include "mlk_pvtblk_delete.h"
#include "mlk_unlock.h"
int
omi_prc_unlc(omi_conn *cptr, char *xend, char *buff, char *bend)
{
GBLREF int omi_pid;
GBLREF mlk_pvtblk *mlk_pvt_root;
int rv;
omi_si si;
char *jid;
mlk_pvtblk **prior;
/* Client's $JOB */
OMI_SI_READ(&si, cptr->xptr);
jid = cptr->xptr;
cptr->xptr += si.value;
/* Bounds checking */
if (cptr->xptr > xend)
return -OMI_ER_PR_INVMSGFMT;
/* Condition handler for DBMS operations */
ESTABLISH_RET(omi_dbms_ch,0);
/* Loop through all the locks, unlocking ones that belong to this client */
for (prior = &mlk_pvt_root; *prior; ) {
if (!(*prior)->granted || !(*prior)->nodptr
|| (*prior)->nodptr->owner != omi_pid)
mlk_pvtblk_delete(prior);
else if ((*prior)->nodptr->auxowner == (UINTPTR_T)cptr
&& si.value == (*prior)->value[(*prior)->total_length]
&& memcmp(&(*prior)->value[(*prior)->total_length+1],
jid, si.value) == 0) {
mlk_unlock(*prior);
mlk_pvtblk_delete(prior);
} else
prior = &(*prior)->next;
}
REVERT;
return 0;
}