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pcas/src/std/dev/devHistogramSoft.c
2012-07-07 15:54:31 -05:00

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/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* EPICS BASE Versions 3.13.7
* and higher are distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/* devHistogramSoft.c */
/* base/src/dev $Revision-Id$ */
/*
* Author: Janet Anderson
* Date: 07/02/91
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "alarm.h"
#include "cvtTable.h"
#include "dbDefs.h"
#include "dbAccess.h"
#include "recGbl.h"
#include "recSup.h"
#include "devSup.h"
#include "link.h"
#include "histogramRecord.h"
#include "epicsExport.h"
/* Create the dset for devHistogramSoft */
static long init_record(histogramRecord *prec);
static long read_histogram(histogramRecord *prec);
struct {
long number;
DEVSUPFUN report;
DEVSUPFUN init;
DEVSUPFUN init_record;
DEVSUPFUN get_ioint_info;
DEVSUPFUN read_histogram;
DEVSUPFUN special_linconv;
}devHistogramSoft={
6,
NULL,
NULL,
init_record,
NULL,
read_histogram,
NULL
};
epicsExportAddress(dset,devHistogramSoft);
static long init_record(histogramRecord *prec)
{
/* histogram.svl must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
switch (prec->svl.type) {
case (CONSTANT) :
if(recGblInitConstantLink(&prec->svl,DBF_DOUBLE,&prec->sgnl))
prec->udf = FALSE;
break;
case (PV_LINK) :
case (DB_LINK) :
case (CA_LINK) :
break;
default :
recGblRecordError(S_db_badField,(void *)prec,
"devHistogramSoft (init_record) Illegal SVL field");
return(S_db_badField);
}
return 0;
}
static long read_histogram(histogramRecord *prec)
{
dbGetLink(&prec->svl, DBR_DOUBLE, &prec->sgnl, 0, 0);
return 0; /*add count*/
}