Files
epics-base/modules/database/src/std/dev/devBiSoft.c
2018-06-19 11:31:13 +02:00

79 lines
1.9 KiB
C

/*************************************************************************\
* Copyright (c) 2008 UChicago Argonne LLC, 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 is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/*
* Original Authors: Bob Dalesio and Marty Kraimer
* Date: 6-1-90
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "alarm.h"
#include "dbDefs.h"
#include "dbAccess.h"
#include "recGbl.h"
#include "devSup.h"
#include "biRecord.h"
#include "epicsExport.h"
/* Create the dset for devBiSoft */
static long init_record(biRecord *prec);
static long read_bi(biRecord *prec);
struct {
long number;
DEVSUPFUN report;
DEVSUPFUN init;
DEVSUPFUN init_record;
DEVSUPFUN get_ioint_info;
DEVSUPFUN read_bi;
} devBiSoft = {
5,
NULL,
NULL,
init_record,
NULL,
read_bi
};
epicsExportAddress(dset, devBiSoft);
static long init_record(biRecord *prec)
{
if (recGblInitConstantLink(&prec->inp, DBF_ENUM, &prec->val))
prec->udf = FALSE;
return 0;
}
static long readLocked(struct link *pinp, void *dummy)
{
biRecord *prec = (biRecord *) pinp->precord;
long status = dbGetLink(pinp, DBR_USHORT, &prec->val, 0, 0);
if (status) return status;
prec->udf = FALSE;
if (dbLinkIsConstant(&prec->tsel) &&
prec->tse == epicsTimeEventDeviceTime)
dbGetTimeStamp(pinp, &prec->time);
return 2;
}
static long read_bi(biRecord *prec)
{
long status = dbLinkDoLocked(&prec->inp, readLocked, NULL);
if (status == S_db_noLSET)
status = readLocked(&prec->inp, NULL);
return status;
}