Marty Kraimer
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*************************************************************************\
|
|
* 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.
|
|
\*************************************************************************/
|
|
/* devAiTestAsyn.c */
|
|
/* base/src/dev $Id$ */
|
|
|
|
/* devAiTestAsyn.c - Device Support Routines for testing asynchronous processing*/
|
|
/*
|
|
* Original Author: Bob Dalesio
|
|
* Current Author: Marty Kraimer
|
|
* Date: 6-1-90
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "alarm.h"
|
|
#include "callback.h"
|
|
#include "cvtTable.h"
|
|
#include "dbDefs.h"
|
|
#include "dbAccess.h"
|
|
#include "recGbl.h"
|
|
#include "recSup.h"
|
|
#include "devSup.h"
|
|
#include "link.h"
|
|
#include "dbCommon.h"
|
|
#include "aiRecord.h"
|
|
#include "epicsExport.h"
|
|
|
|
static long init_record(struct aiRecord *pai)
|
|
{
|
|
CALLBACK *pcallback;
|
|
switch (pai->inp.type) {
|
|
case (CONSTANT) :
|
|
pcallback = (CALLBACK *)(calloc(1,sizeof(CALLBACK)));
|
|
pai->dpvt = (void *)pcallback;
|
|
break;
|
|
default :
|
|
recGblRecordError(S_db_badField,(void *)pai,
|
|
"devAiTestAsyn (init_record) Illegal INP field");
|
|
pai->pact=TRUE;
|
|
return(S_db_badField);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
static long read_ai(struct aiRecord *pai)
|
|
{
|
|
CALLBACK *pcallback = (CALLBACK *)pai->dpvt;
|
|
if(pai->pact) {
|
|
pai->val += 0.1; /* Change VAL just to show we've done something. */
|
|
pai->udf = FALSE; /* We modify VAL so we are responsible for UDF too. */
|
|
printf("Completed asynchronous processing: %s\n",pai->name);
|
|
return(2); /* don`t convert*/
|
|
}
|
|
if(pai->disv<=0) return(2);
|
|
printf("Starting asynchronous processing: %s\n",pai->name);
|
|
pai->pact=TRUE;
|
|
callbackRequestProcessCallbackDelayed(pcallback,
|
|
pai->prio,pai,(double)pai->disv);
|
|
return(0);
|
|
}
|
|
|
|
/* Create the dset for devAiTestAsyn */
|
|
struct {
|
|
long number;
|
|
DEVSUPFUN report;
|
|
DEVSUPFUN init;
|
|
DEVSUPFUN init_record;
|
|
DEVSUPFUN get_ioint_info;
|
|
DEVSUPFUN read_ai;
|
|
DEVSUPFUN special_linconv;
|
|
}devAiTestAsyn={
|
|
6,
|
|
NULL,
|
|
NULL,
|
|
init_record,
|
|
NULL,
|
|
read_ai,
|
|
NULL
|
|
};
|
|
epicsExportAddress(dset,devAiTestAsyn);
|