156 lines
4.3 KiB
C
156 lines
4.3 KiB
C
/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/* devSiSoftCallback.c */
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/*
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* Author: Marty Kraimer
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* Date: 23APR2008
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "alarm.h"
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#include "callback.h"
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#include "cantProceed.h"
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#include "dbDefs.h"
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#include "dbAccess.h"
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#include "dbNotify.h"
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#include "recGbl.h"
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#include "recSup.h"
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#include "devSup.h"
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#include "link.h"
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#include "stringinRecord.h"
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#include "epicsExport.h"
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/* Create the dset for devSiSoftCallback */
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static long init_record();
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static long read_stringin();
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struct {
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long number;
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DEVSUPFUN report;
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DEVSUPFUN init;
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DEVSUPFUN init_record;
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_stringin;
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DEVSUPFUN special_linconv;
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}devSiSoftCallback={
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6,
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NULL,
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NULL,
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init_record,
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NULL,
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read_stringin,
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NULL};
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epicsExportAddress(dset,devSiSoftCallback);
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typedef struct notifyInfo {
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processNotify *ppn;
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CALLBACK *pcallback;
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char value[40];
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int status;
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}notifyInfo;
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static void getCallback(processNotify *ppn,notifyGetType type)
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{
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struct stringinRecord *pstringin = (struct stringinRecord *)ppn->usrPvt;
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notifyInfo *pnotifyInfo = (notifyInfo *)pstringin->dpvt;
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int status = 0;
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long no_elements = 1;
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long options = 0;
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if(ppn->status==notifyCanceled) {
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printf("dbtpn:getCallback notifyCanceled\n");
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return;
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}
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switch(type) {
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case getFieldType:
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status = dbGetField(ppn->paddr,DBR_STRING,&pnotifyInfo->value,
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&options,&no_elements,0);
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break;
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case getType:
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status = dbGet(ppn->paddr,DBR_STRING,&pnotifyInfo->value,
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&options,&no_elements,0);
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break;
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}
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pnotifyInfo->status = status;
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}
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static void doneCallback(processNotify *ppn)
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{
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struct stringinRecord *pstringin = (struct stringinRecord *)ppn->usrPvt;
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notifyInfo *pnotifyInfo = (notifyInfo *)pstringin->dpvt;
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callbackRequestProcessCallback(pnotifyInfo->pcallback,pstringin->prio,pstringin);
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}
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static long init_record(struct stringinRecord *pstringin)
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{
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DBLINK *plink = &pstringin->inp;
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struct instio *pinstio;
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char *pvname;
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DBADDR *pdbaddr=NULL;
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long status;
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notifyInfo *pnotifyInfo;
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CALLBACK *pcallback;
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processNotify *ppn=NULL;
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if(plink->type!=INST_IO) {
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recGblRecordError(S_db_badField,(void *)pstringin,
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"devSiSoftCallback (init_record) Illegal INP field");
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pstringin->pact=TRUE;
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return(S_db_badField);
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}
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pinstio=(struct instio*)&(plink->value);
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pvname = pinstio->string;
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pdbaddr = callocMustSucceed(1, sizeof(*pdbaddr),
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"devSiSoftCallback::init_record");
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status = dbNameToAddr(pvname,pdbaddr);
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if(status) {
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recGblRecordError(status,(void *)pstringin,
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"devSiSoftCallback (init_record) linked record not found");
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pstringin->pact=TRUE;
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return(status);
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}
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pnotifyInfo = callocMustSucceed(1, sizeof(*pnotifyInfo),
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"devSiSoftCallback::init_record");
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pcallback = callocMustSucceed(1, sizeof(*pcallback),
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"devSiSoftCallback::init_record");
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ppn = callocMustSucceed(1, sizeof(*ppn),
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"devSiSoftCallback::init_record");
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pnotifyInfo->ppn = ppn;
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pnotifyInfo->pcallback = pcallback;
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ppn->usrPvt = pstringin;
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ppn->paddr = pdbaddr;
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ppn->getCallback = getCallback;
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ppn->doneCallback = doneCallback;
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ppn->requestType = processGetRequest;
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pstringin->dpvt = pnotifyInfo;
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return 0;
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}
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static long read_stringin(stringinRecord *pstringin)
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{
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notifyInfo *pnotifyInfo = (notifyInfo *)pstringin->dpvt;
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if(pstringin->pact) {
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if(pnotifyInfo->status) {
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recGblSetSevr(pstringin,READ_ALARM,INVALID_ALARM);
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return(pnotifyInfo->status);
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}
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strcpy(pstringin->val,pnotifyInfo->value);
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pstringin->udf = FALSE;
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return(0);
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}
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dbProcessNotify(pnotifyInfo->ppn);
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pstringin->pact = TRUE;
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return(0);
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}
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