268 lines
7.6 KiB
C
268 lines
7.6 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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* SPDX-License-Identifier: EPICS
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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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/* recStringout.c - Record Support Routines for Stringout records */
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/*
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* Author: Janet Anderson
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* Date: 4/23/91
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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 "callback.h"
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#include "dbAccess.h"
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#include "dbEvent.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 "menuOmsl.h"
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#include "menuIvoa.h"
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#include "menuYesNo.h"
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#define GEN_SIZE_OFFSET
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#include "stringoutRecord.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(struct dbCommon *, int);
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static long process(struct dbCommon *);
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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 stringoutRSET={
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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,stringoutRSET);
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static void monitor(stringoutRecord *);
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static long writeValue(stringoutRecord *);
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static long init_record(struct dbCommon *pcommon, int pass)
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{
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struct stringoutRecord *prec = (struct stringoutRecord *)pcommon;
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STATIC_ASSERT(sizeof(prec->oval)==sizeof(prec->val));
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STATIC_ASSERT(sizeof(prec->ivov)==sizeof(prec->val));
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stringoutdset *pdset = (stringoutdset *) prec->dset;
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if (pass == 0) return 0;
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recGblInitSimm(pcommon, &prec->sscn, &prec->oldsimm, &prec->simm, &prec->siml);
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if (!pdset) {
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recGblRecordError(S_dev_noDSET, prec, "stringout: init_record");
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return S_dev_noDSET;
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}
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/* must have write_stringout functions defined */
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if ((pdset->common.number < 5) || (pdset->write_stringout == NULL)) {
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recGblRecordError(S_dev_missingSup, prec, "stringout: init_record");
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return S_dev_missingSup;
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}
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/* get the initial value dol is a constant*/
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if (recGblInitConstantLink(&prec->dol, DBF_STRING, prec->val))
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prec->udf = FALSE;
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if (pdset->common.init_record) {
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long status = pdset->common.init_record(pcommon);
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if(status)
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return status;
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}
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strncpy(prec->oval, prec->val, sizeof(prec->oval));
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return 0;
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}
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static long process(struct dbCommon *pcommon)
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{
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struct stringoutRecord *prec = (struct stringoutRecord *)pcommon;
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stringoutdset *pdset = (stringoutdset *)(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->write_stringout==NULL) ) {
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prec->pact=TRUE;
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recGblRecordError(S_dev_missingSup, prec, "write_stringout");
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return(S_dev_missingSup);
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}
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if (!prec->pact &&
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!dbLinkIsConstant(&prec->dol) &&
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prec->omsl == menuOmslclosed_loop) {
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status = dbGetLink(&prec->dol, DBR_STRING, prec->val, 0, 0);
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if (!dbLinkIsConstant(&prec->dol) && !status)
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prec->udf=FALSE;
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}
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if(prec->udf == TRUE ){
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recGblSetSevr(prec,UDF_ALARM,prec->udfs);
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}
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/* Update the timestamp before writing output values so it
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* will be up to date if any downstream records fetch it via TSEL */
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recGblGetTimeStampSimm(prec, prec->simm, NULL);
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if (prec->nsev < INVALID_ALARM )
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status=writeValue(prec); /* write the new value */
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else {
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switch (prec->ivoa) {
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case (menuIvoaContinue_normally) :
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status=writeValue(prec); /* write the new value */
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break;
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case (menuIvoaDon_t_drive_outputs) :
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break;
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case (menuIvoaSet_output_to_IVOV) :
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if(prec->pact == FALSE){
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strncpy(prec->val, prec->ivov, sizeof(prec->val));
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}
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status=writeValue(prec); /* write the new value */
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break;
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default :
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status=-1;
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recGblRecordError(S_db_badField, prec,
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"stringout:process Illegal IVOA field");
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}
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}
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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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if ( pact ) {
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/* Update timestamp again for asynchronous devices */
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recGblGetTimeStampSimm(prec, prec->simm, NULL);
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}
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monitor(prec);
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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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stringoutRecord *prec = (stringoutRecord *)(paddr->precord);
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int special_type = paddr->special;
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switch(special_type) {
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case(SPC_MOD):
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if (dbGetFieldIndex(paddr) == stringoutRecordSIMM) {
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if (!after)
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recGblSaveSimm(prec->sscn, &prec->oldsimm, prec->simm);
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else
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recGblCheckSimm((dbCommon *)prec, &prec->sscn, prec->oldsimm, prec->simm);
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return 0;
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}
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default:
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recGblDbaddrError(S_db_badChoice, paddr, "stringout: special");
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return(S_db_badChoice);
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}
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}
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static void monitor(stringoutRecord *prec)
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{
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int monitor_mask = recGblResetAlarms(prec);
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if (strncmp(prec->oval, prec->val, sizeof(prec->val))) {
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monitor_mask |= DBE_VALUE | DBE_LOG;
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strncpy(prec->oval, prec->val, sizeof(prec->oval));
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}
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if (prec->mpst == stringoutPOST_Always)
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monitor_mask |= DBE_VALUE;
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if (prec->apst == stringoutPOST_Always)
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monitor_mask |= DBE_LOG;
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if (monitor_mask)
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db_post_events(prec, prec->val, monitor_mask);
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}
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static long writeValue(stringoutRecord *prec)
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{
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stringoutdset *pdset = (stringoutdset *) prec->dset;
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long status = 0;
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if (!prec->pact) {
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status = recGblGetSimm((dbCommon *)prec, &prec->sscn, &prec->oldsimm, &prec->simm, &prec->siml);
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if (status) return status;
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}
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switch (prec->simm) {
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case menuYesNoNO:
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status = pdset->write_stringout(prec);
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break;
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case menuYesNoYES: {
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recGblSetSevr(prec, SIMM_ALARM, prec->sims);
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if (prec->pact || (prec->sdly < 0.)) {
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status = dbPutLink(&prec->siol, DBR_STRING, &prec->val, 1);
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prec->pact = FALSE;
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} else { /* !prec->pact && delay >= 0. */
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epicsCallback *pvt = prec->simpvt;
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if (!pvt) {
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pvt = calloc(1, sizeof(epicsCallback)); /* very lazy allocation of callback structure */
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prec->simpvt = pvt;
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}
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if (pvt) callbackRequestProcessCallbackDelayed(pvt, prec->prio, prec, prec->sdly);
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prec->pact = TRUE;
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}
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break;
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}
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default:
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recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
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status = -1;
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}
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return status;
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}
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