205 lines
5.0 KiB
C
205 lines
5.0 KiB
C
/*************************************************************************\
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* Copyright (c) 2008 UChicago Argonne LLC, 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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/* $Revision-Id$ */
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/* recEvent.c - Record Support Routines for Event records */
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/*
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* Author: Janet Anderson
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* Date: 12-13-91
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "dbDefs.h"
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#include "epicsPrint.h"
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#include "alarm.h"
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#include "dbAccess.h"
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#include "dbEvent.h"
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#include "dbScan.h"
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#include "dbFldTypes.h"
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#include "devSup.h"
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#include "errMdef.h"
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#include "recSup.h"
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#include "recGbl.h"
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#include "special.h"
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#include "menuYesNo.h"
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#define GEN_SIZE_OFFSET
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#include "eventRecord.h"
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#undef GEN_SIZE_OFFSET
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#include "epicsExport.h"
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/* Create RSET - Record Support Entry Table*/
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#define report NULL
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#define initialize NULL
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static long init_record(eventRecord *, int);
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static long process(eventRecord *);
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static long special(DBADDR *, int);
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#define get_value NULL
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#define cvt_dbaddr NULL
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#define get_array_info NULL
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#define put_array_info NULL
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#define get_units NULL
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#define get_precision NULL
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#define get_enum_str NULL
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#define get_enum_strs NULL
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#define put_enum_str NULL
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#define get_graphic_double NULL
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#define get_control_double NULL
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#define get_alarm_double NULL
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rset eventRSET={
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RSETNUMBER,
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report,
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initialize,
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init_record,
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process,
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special,
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get_value,
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cvt_dbaddr,
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get_array_info,
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put_array_info,
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get_units,
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get_precision,
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get_enum_str,
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get_enum_strs,
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put_enum_str,
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get_graphic_double,
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get_control_double,
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get_alarm_double
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};
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epicsExportAddress(rset,eventRSET);
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struct eventdset { /* event input dset */
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long number;
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DEVSUPFUN dev_report;
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DEVSUPFUN init;
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DEVSUPFUN init_record; /*returns: (-1,0)=>(failure,success)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_event;/*(0)=> success */
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};
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static void monitor(eventRecord *);
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static long readValue(eventRecord *);
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static long init_record(eventRecord *prec, int pass)
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{
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struct eventdset *pdset;
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long status=0;
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if (pass==0) return(0);
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if (prec->siml.type == CONSTANT) {
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recGblInitConstantLink(&prec->siml,DBF_USHORT,&prec->simm);
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}
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if (prec->siol.type == CONSTANT) {
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recGblInitConstantLink(&prec->siol,DBF_STRING,&prec->sval);
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}
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prec->epvt = eventNameToHandle(prec->val);
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if( (pdset=(struct eventdset *)(prec->dset)) && (pdset->init_record) )
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status=(*pdset->init_record)(prec);
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return(status);
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}
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static long process(eventRecord *prec)
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{
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struct eventdset *pdset = (struct eventdset *)(prec->dset);
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long status=0;
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unsigned char pact=prec->pact;
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if((pdset!=NULL) && (pdset->number >= 5) && pdset->read_event )
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status=readValue(prec); /* read the new value */
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/* check if device support set pact */
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if ( !pact && prec->pact ) return(0);
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prec->pact = TRUE;
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postEvent(prec->epvt);
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recGblGetTimeStamp(prec);
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/* check event list */
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monitor(prec);
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/* process the forward scan link record */
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recGblFwdLink(prec);
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prec->pact=FALSE;
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return(status);
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}
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static long special(DBADDR *paddr, int after)
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{
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eventRecord *prec = (eventRecord *)paddr->precord;
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if (!after) return 0;
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if (dbGetFieldIndex(paddr) == eventRecordVAL) {
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prec->epvt = eventNameToHandle(prec->val);
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}
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return 0;
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}
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static void monitor(eventRecord *prec)
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{
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unsigned short monitor_mask;
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/* get previous stat and sevr and new stat and sevr*/
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monitor_mask = recGblResetAlarms(prec);
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db_post_events(prec,&prec->val,monitor_mask|DBE_VALUE);
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return;
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}
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static long readValue(eventRecord *prec)
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{
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long status;
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struct eventdset *pdset = (struct eventdset *) (prec->dset);
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if (prec->pact == TRUE){
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status=(*pdset->read_event)(prec);
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return(status);
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}
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status=dbGetLink(&(prec->siml),DBR_USHORT,&(prec->simm),0,0);
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if (status)
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return(status);
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if (prec->simm == menuYesNoNO){
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status=(*pdset->read_event)(prec);
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return(status);
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}
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if (prec->simm == menuYesNoYES){
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status=dbGetLink(&(prec->siol),DBR_STRING,
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&(prec->sval),0,0);
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if (status==0) {
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if (strcmp(prec->sval, prec->val) != 0) {
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strcpy(prec->val, prec->sval);
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prec->epvt = eventNameToHandle(prec->val);
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}
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prec->udf=FALSE;
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}
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} else {
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status=-1;
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recGblSetSevr(prec,SOFT_ALARM,INVALID_ALARM);
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return(status);
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}
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recGblSetSevr(prec,SIMM_ALARM,prec->sims);
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return(status);
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}
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