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/****************************************************************
* *
* Copyright (c) 2001-2017 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* 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. *
* *
****************************************************************/
#include "mdef.h"
#include "mlkdef.h"
#include "iotimer.h"
#include "locklits.h"
#include "tp_frame.h"
#include "op.h"
#include "mlk_pvtblk_delete.h"
#include "mlk_unlock.h"
#include "gvcmx.h"
#include "lckclr.h"
GBLREF boolean_t gtcm_connection;
GBLREF unsigned short lks_this_cmd;
GBLREF mlk_pvtblk *mlk_pvt_root;
GBLREF bool remlkreq;
GBLREF unsigned char cm_action;
GBLREF tp_frame *tp_pointer;
error_def(ERR_TPLOCK);
int op_decrlock(mval *timeout)
{
int count;
mlk_pvtblk **prior;
void lckclr(void);
lckclr();
if (tp_pointer)
{
prior = &mlk_pvt_root;
for (count = 0; count < lks_this_cmd; count++)
{
/* if there were any old locks before TSTART, they can't be unlocked */
if ((*prior)->granted && (*prior)->tp &&
(*prior)->tp->level > (*prior)->level - (*prior)->translev)
rts_error_csa(NULL, VARLSTCNT(1) ERR_TPLOCK);
prior = &((*prior)->next);
}
}
prior = &mlk_pvt_root;
for (count = 0; count < lks_this_cmd; count++)
{
if (prior)
{
if (!(*prior)->granted)
{ /* if entry was never granted, delete list entry */
mlk_pvtblk_delete(prior);
}
else
{
(*prior)->level -= (*prior)->translev > (*prior)->level ? (*prior)->level : (*prior)->translev;
if (!(*prior)->zalloc && (0 == (*prior)->level))
{
mlk_unlock(*prior);
mlk_pvtblk_delete(prior);
}
else
prior = &((*prior)->next);
}
}
}
if (gtcm_connection && remlkreq)
{
cm_action = INCREMENTAL;
gvcmx_unlock(0, TRUE, INCREMENTAL);
remlkreq = FALSE;
}
lks_this_cmd = 0; /* reset so we can check whether an extrinsic is trying to nest a LOCK operation */
return TRUE; /* return TRUE unconditionally (since this is a timed unlock) so $TEST gets set to 1 as per M-standard */
}
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