fis-gtm/sr_port/op_fngvget.c

63 lines
1.8 KiB
C

/****************************************************************
* *
* Copyright 2001, 2012 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. *
* *
****************************************************************/
#include "mdef.h"
#include "gdsroot.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "stringpool.h"
#include "op.h"
#include "gvcst_protos.h" /* for gvcst_get prototype */
#include "gvcmx.h"
#include "gvusr.h"
#include "sgnl.h"
GBLREF gv_namehead *gv_target;
GBLREF gd_region *gv_cur_region;
LITREF mval literal_null;
/* This code is very similar to op_fngvget1.c except if the gvn is undefined, this one returns the default empty string
* while op_fngvget1 returns an undefined value as a signal to op_fnget2, which, in turn, returns a specified "default" string;
* that slight of hand deals with order of evaluation issues.
* Any changes to this routine most likely have to be made in op_fngvget1.c as well.
*/
void op_fngvget(mval *dst)
{
boolean_t gotit;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
if (TREF(gv_last_subsc_null) && NEVER == gv_cur_region->null_subs)
sgnl_gvnulsubsc();
switch (gv_cur_region->dyn.addr->acc_meth)
{
case dba_bg :
case dba_mm :
gotit = gv_target->root ? gvcst_get(dst) : FALSE;
break;
case dba_cm :
gotit = gvcmx_get(dst);
break;
default :
;
if (gotit = gvusr_get(dst)) /* NOTE: assignment */
s2pool(&dst->str);
break;
}
if (!gotit)
*dst = literal_null;
assert(0 == (dst->mvtype & MV_ALIASCONT)); /* Should be no alias container flag */
return;
}