454 lines
11 KiB
C
454 lines
11 KiB
C
/*************************************************************************\
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* Copyright (c) 2009 Helmholtz-Zentrum Berlin fuer Materialien und Energie.
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* Copyright (c) 2012 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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/* mbboRecord.c - Record Support Routines for multi bit binary Output records */
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/*
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* Original Author: Bob Dalesio
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* Date: 7-17-87
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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 "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 "mbboRecord.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(mbboRecord *, int);
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static long process(mbboRecord *);
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static long special(DBADDR *, int);
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#define get_value NULL
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static long cvt_dbaddr(DBADDR *);
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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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static long get_enum_str(DBADDR *, char *);
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static long get_enum_strs(DBADDR *, struct dbr_enumStrs *);
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static long put_enum_str(DBADDR *, char *);
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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 mbboRSET = {
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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,mbboRSET);
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struct mbbodset { /* multi bit binary output 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: (0, 2) => (success, success no convert)*/
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN write_mbbo; /*returns: (0, 2) => (success, success no convert)*/
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};
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static void checkAlarms(mbboRecord *);
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static void convert(mbboRecord *);
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static void monitor(mbboRecord *);
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static long writeValue(mbboRecord *);
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static void init_common(mbboRecord *prec)
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{
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epicsUInt32 *pstate_values = &prec->zrvl;
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char *pstate_string = prec->zrst;
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int i;
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/* Check if any states are defined */
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for (i = 0; i < 16; i++, pstate_string += sizeof(prec->zrst)) {
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if ((pstate_values[i] != 0) || (*pstate_string != '\0')) {
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prec->sdef = TRUE;
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return;
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}
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}
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prec->sdef = FALSE;
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}
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static long init_record(mbboRecord *prec, int pass)
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{
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struct mbbodset *pdset;
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long status;
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if (pass == 0) {
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init_common(prec);
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return 0;
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}
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pdset = (struct mbbodset *) prec->dset;
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if (!pdset) {
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recGblRecordError(S_dev_noDSET, prec, "mbbo: init_record");
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return S_dev_noDSET;
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}
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if ((pdset->number < 5) || (pdset->write_mbbo == NULL)) {
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recGblRecordError(S_dev_missingSup, prec, "mbbo: init_record");
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return S_dev_missingSup;
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}
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if (prec->siml.type == CONSTANT)
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recGblInitConstantLink(&prec->siml, DBF_USHORT, &prec->simm);
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if (prec->dol.type == CONSTANT)
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if (recGblInitConstantLink(&prec->dol, DBF_USHORT, &prec->val))
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prec->udf = FALSE;
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/* Initialize MASK if the user set NOBT instead */
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if (prec->mask == 0 && prec->nobt <= 32)
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prec->mask = ((epicsUInt64) 1u << prec->nobt) - 1;
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if (pdset->init_record) {
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status = pdset->init_record(prec);
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init_common(prec);
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if (status == 0) {
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/* Convert initial read-back */
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epicsUInt32 rval = prec->rval;
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if (prec->shft > 0)
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rval >>= prec->shft;
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if (prec->sdef) {
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epicsUInt32 *pstate_values = &prec->zrvl;
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int i;
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prec->val = 65535; /* initalize to unknown state */
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for (i = 0; i < 16; i++) {
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if (*pstate_values == rval) {
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prec->val = i;
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break;
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}
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pstate_values++;
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}
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}
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else {
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/* No defined states, punt */
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prec->val = rval;
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}
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prec->udf = FALSE;
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}
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else if (status == 2)
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status = 0;
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}
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else {
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init_common(prec);
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status = 0;
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}
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/* Convert VAL to RVAL */
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convert(prec);
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prec->mlst = prec->val;
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prec->lalm = prec->val;
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prec->oraw = prec->rval;
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prec->orbv = prec->rbv;
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return status;
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}
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static long process(mbboRecord *prec)
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{
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struct mbbodset *pdset = (struct mbbodset *) prec->dset;
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long status = 0;
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int pact = prec->pact;
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if ((pdset == NULL) || (pdset->write_mbbo == NULL)) {
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prec->pact = TRUE;
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recGblRecordError(S_dev_missingSup, prec, "write_mbbo");
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return S_dev_missingSup;
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}
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if (!pact) {
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if (prec->dol.type != CONSTANT &&
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prec->omsl == menuOmslclosed_loop) {
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epicsUInt16 val;
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if (dbGetLink(&prec->dol, DBR_USHORT, &val, 0, 0)) {
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recGblSetSevr(prec, LINK_ALARM, INVALID_ALARM);
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goto CONTINUE;
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}
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prec->val = val;
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}
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else if (prec->udf) {
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recGblSetSevr(prec, UDF_ALARM, prec->udfs);
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goto CONTINUE;
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}
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prec->udf = FALSE;
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/* Convert VAL to RVAL */
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convert(prec);
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}
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CONTINUE:
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/* Check for alarms */
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checkAlarms(prec);
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if (prec->nsev < INVALID_ALARM)
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status = writeValue(prec);
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else {
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switch (prec->ivoa) {
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case menuIvoaSet_output_to_IVOV:
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if (!prec->pact) {
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prec->val = prec->ivov;
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convert(prec);
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}
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/* No break, fall through... */
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case menuIvoaContinue_normally:
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status = writeValue(prec);
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break;
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case menuIvoaDon_t_drive_outputs:
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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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"mbbo::process Illegal IVOA field");
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}
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}
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/* Done if device support set pact */
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if (!pact && prec->pact)
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return 0;
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prec->pact = TRUE;
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recGblGetTimeStamp(prec);
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monitor(prec);
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/* Wrap up */
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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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mbboRecord *prec = (mbboRecord *) paddr->precord;
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int fieldIndex = dbGetFieldIndex(paddr);
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if (!after)
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return 0;
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switch (paddr->special) {
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case SPC_MOD:
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init_common(prec);
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if (fieldIndex >= mbboRecordZRST && fieldIndex <= mbboRecordFFST) {
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int event = DBE_PROPERTY;
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if (prec->val == fieldIndex - mbboRecordZRST)
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event |= DBE_VALUE | DBE_LOG;
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db_post_events(prec, &prec->val, event);
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}
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return 0;
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default:
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recGblDbaddrError(S_db_badChoice, paddr, "mbbo: special");
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return S_db_badChoice;
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}
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}
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static long cvt_dbaddr(DBADDR *paddr)
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{
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mbboRecord *prec = (mbboRecord *) paddr->precord;
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if (dbGetFieldIndex(paddr) != mbboRecordVAL) {
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recGblDbaddrError(S_db_badField, paddr, "mbbo: cvt_dbaddr");
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return 0;
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}
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if (!prec->sdef) {
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paddr->field_type = DBF_USHORT;
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paddr->dbr_field_type = DBF_USHORT;
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}
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return 0;
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}
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static long get_enum_str(DBADDR *paddr, char *pstring)
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{
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mbboRecord *prec = (mbboRecord *) paddr->precord;
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epicsEnum16 *pfield = paddr->pfield;
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epicsEnum16 val = *pfield;
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if (dbGetFieldIndex(paddr) != mbboRecordVAL) {
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strcpy(pstring, "Bad Field");
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}
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else if (val <= 15) {
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const char *pstate = prec->zrst + val * sizeof(prec->zrst);
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strncpy(pstring, pstate, sizeof(prec->zrst));
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}
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else {
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strcpy(pstring, "Illegal Value");
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}
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return 0;
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}
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static long get_enum_strs(DBADDR *paddr, struct dbr_enumStrs *pes)
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{
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mbboRecord *prec = (mbboRecord *) paddr->precord;
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const char *pstate;
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int i, states = 0;
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memset(pes->strs, '\0', sizeof(pes->strs));
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pstate = prec->zrst;
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for (i = 0; i < 16; i++) {
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strncpy(pes->strs[i], pstate, sizeof(prec->zrst));
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if (*pstate)
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states = i + 1;
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pstate += sizeof(prec->zrst);
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}
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pes->no_str = states;
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return 0;
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}
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static long put_enum_str(DBADDR *paddr,char *pstring)
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{
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mbboRecord *prec = (mbboRecord *) paddr->precord;
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const char *pstate;
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int i;
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if (prec->sdef) {
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pstate = prec->zrst;
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for (i = 0; i < 16; i++) {
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if (strncmp(pstate, pstring, sizeof(prec->zrst)) == 0) {
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prec->val = i;
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return 0;
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}
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pstate += sizeof(prec->zrst);
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}
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}
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return S_db_badChoice;
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}
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static void checkAlarms(mbboRecord *prec)
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{
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epicsEnum16 val = prec->val;
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/* Check for STATE alarm */
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if (val > 15) {
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/* Unknown state */
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recGblSetSevr(prec, STATE_ALARM, prec->unsv);
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}
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else {
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/* State has a severity field */
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epicsEnum16 *severities = &prec->zrsv;
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recGblSetSevr(prec, STATE_ALARM, severities[prec->val]);
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}
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/* Check for COS alarm */
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if (val == prec->lalm ||
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recGblSetSevr(prec, COS_ALARM, prec->cosv))
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return;
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prec->lalm = val;
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}
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static void monitor(mbboRecord *prec)
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{
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epicsUInt16 events = recGblResetAlarms(prec);
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if (prec->mlst != prec->val) {
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events |= DBE_VALUE | DBE_LOG;
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prec->mlst = prec->val;
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}
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if (events)
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db_post_events(prec, &prec->val, events);
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events |= DBE_VALUE | DBE_LOG;
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if (prec->oraw != prec->rval) {
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db_post_events(prec, &prec->rval, events);
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prec->oraw = prec->rval;
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}
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if (prec->orbv != prec->rbv) {
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db_post_events(prec, &prec->rbv, events);
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prec->orbv = prec->rbv;
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}
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}
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static void convert(mbboRecord *prec)
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{
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/* Convert VAL to RVAL */
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if (prec->sdef) {
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epicsUInt32 *pvalues = &prec->zrvl;
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if (prec->val > 15) {
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recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
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return;
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}
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prec->rval = pvalues[prec->val];
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}
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else
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prec->rval = prec->val;
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if (prec->shft > 0)
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prec->rval <<= prec->shft;
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}
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static long writeValue(mbboRecord *prec)
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{
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long status;
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struct mbbodset *pdset = (struct mbbodset *) prec->dset;
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if (prec->pact)
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return pdset->write_mbbo(prec);
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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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switch (prec->simm) {
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case menuYesNoNO:
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return pdset->write_mbbo(prec);
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case menuYesNoYES:
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recGblSetSevr(prec, SIMM_ALARM, prec->sims);
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return dbPutLink(&prec->siol, DBR_USHORT, &prec->val, 1);
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default:
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recGblSetSevr(prec, SOFT_ALARM, INVALID_ALARM);
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return -1;
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}
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}
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