303 lines
8.0 KiB
C
303 lines
8.0 KiB
C
/* recBi.c */
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/* share/src/rec $Id$ */
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/* recBi.c - Record Support Routines for Binary Input records
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*
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* Author: Bob Dalesio
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* Date: 7-9-87
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*
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* Control System Software for the GTA Project
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*
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* Copyright 1988, 1989, the Regents of the University of California.
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*
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* This software was produced under a U.S. Government contract
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* (W-7405-ENG-36) at the Los Alamos National Laboratory, which is
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* operated by the University of California for the U.S. Department
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* of Energy.
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*
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* Developed by the Controls and Automation Group (AT-8)
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* Accelerator Technology Division
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* Los Alamos National Laboratory
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*
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* Direct inqueries to:
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* Bob Dalesio, AT-8, Mail Stop H820
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* Los Alamos National Laboratory
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* Los Alamos, New Mexico 87545
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* Phone: (505) 667-3414
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* E-mail: dalesio@luke.lanl.gov
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*
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* Modification Log:
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* -----------------
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* .01 12-12-88 lrd lock the record on entry and unlock on exit
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* .02 12-15-88 lrd Process the forward scan link
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* .03 12-23-88 lrd Alarm on locked MAX_LOCKED times
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* .04 01-13-89 lrd delete db_read_bi
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* .05 03-17-89 lrd database link inputs
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* .06 03-29-89 lrd make hardware errors MAJOR
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* remove hw severity spec from database
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* .07 04-06-89 lrd add monitor detection
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* .08 05-03-89 lrd removed process mask from arg list
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* .09 01-31-90 lrd add the plc_flag arg to the ab_bidriver call
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* .10 03-21-90 lrd add db_post_events for RVAL
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* .11 04-11-90 lrd make local variables static
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* .12 10-10-90 mrk Made changes for new record and device support
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*/
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#include <vxWorks.h>
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#include <types.h>
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#include <stdioLib.h>
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#include <lstLib.h>
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#include <strLib.h>
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#include <alarm.h>
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#include <dbAccess.h>
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#include <dbDefs.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 <link.h>
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#include <recSup.h>
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#include <special.h>
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#include <biRecord.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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long init_record();
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long process();
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#define special NULL
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long get_value();
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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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long get_enum_str();
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long get_enum_strs();
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long put_enum_str();
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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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struct rset biRSET={
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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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struct bidset { /* binary 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_bi;/*(0,1,2)=> success and */
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/*(convert,don't continue, don't convert)*/
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/* if convert then raw value stored in rval */
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};
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void alarm();
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void monitor();
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static long init_record(pbi)
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struct biRecord *pbi;
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{
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struct bidset *pdset;
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long status;
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if(!(pdset = (struct bidset *)(pbi->dset))) {
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recGblRecordError(S_dev_noDSET,pbi,"bi: init_record");
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return(S_dev_noDSET);
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}
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/* must have read_bi function defined */
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if( (pdset->number < 5) || (pdset->read_bi == NULL) ) {
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recGblRecordError(S_dev_missingSup,pbi,"bi: init_record");
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return(S_dev_missingSup);
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}
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if( pdset->init_record ) {
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if((status=(*pdset->init_record)(pbi,process))) return(status);
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}
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return(0);
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}
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static long process(paddr)
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struct dbAddr *paddr;
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{
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struct biRecord *pbi=(struct biRecord *)(paddr->precord);
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struct bidset *pdset = (struct bidset *)(pbi->dset);
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long status;
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if( (pdset==NULL) || (pdset->read_bi==NULL) ) {
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pbi->pact=TRUE;
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recGblRecordError(S_dev_missingSup,pbi,"read_bi");
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return(S_dev_missingSup);
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}
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status=(*pdset->read_bi)(pbi); /* read the new value */
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pbi->pact = TRUE;
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if(status==0) { /* convert rval to val */
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if(pbi->rval==0) pbi->val =0;
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else pbi->val = 1;
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}
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/* status is one if an asynchronous record is being processed*/
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else if(status==1) return(0);
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else if(status==2) status=0;
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/* check for alarms */
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alarm(pbi);
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/* check event list */
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monitor(pbi);
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/* process the forward scan link record */
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if (pbi->flnk.type==DB_LINK) dbScanPassive(pbi->flnk.value.db_link.pdbAddr);
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pbi->pact=FALSE;
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return(status);
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}
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static long get_value(pbi,pvdes)
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struct biRecord *pbi;
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struct valueDes *pvdes;
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{
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pvdes->field_type = DBF_ENUM;
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pvdes->no_elements=1;
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(unsigned short *)(pvdes->pvalue) = &pbi->val;
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return(0);
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}
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static long get_enum_str(paddr,pstring)
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struct dbAddr *paddr;
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char *pstring;
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{
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struct biRecord *pbi=(struct biRecord *)paddr->precord;
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if(pbi->val==0) {
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strncpy(pstring,pbi->znam,sizeof(pbi->znam));
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pstring[sizeof(pbi->znam)] = 0;
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} else if(pbi->val==1) {
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strncpy(pstring,pbi->onam,sizeof(pbi->onam));
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pstring[sizeof(pbi->onam)] = 0;
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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(paddr,pes)
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struct dbAddr *paddr;
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struct dbr_enumStrs *pes;
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{
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struct biRecord *pbi=(struct biRecord *)paddr->precord;
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pes->no_str = 2;
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bzero(pes->strs,sizeof(pes->strs));
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strncpy(pes->strs[0],pbi->znam,sizeof(pbi->znam));
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strncpy(pes->strs[1],pbi->onam,sizeof(pbi->onam));
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return(0);
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}
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static long put_enum_str(paddr,pstring)
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struct dbAddr *paddr;
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char *pstring;
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{
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struct biRecord *pbi=(struct biRecord *)paddr->precord;
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if(strncmp(pstring,pbi->znam,sizeof(pbi->znam))==0) pbi->val = 0;
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else if(strncmp(pstring,pbi->onam,sizeof(pbi->onam))==0) pbi->val = 1;
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else return(S_db_badChoice);
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return(0);
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}
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static void alarm(pbi)
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struct biRecord *pbi;
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{
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unsigned short val = pbi->val;
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if(val==udfUshort){
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if (pbi->nsev<VALID_ALARM){
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pbi->nsta = SOFT_ALARM;
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pbi->nsev = VALID_ALARM;
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}
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return;
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}
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if(val>1)return;
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/* check for state alarm */
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if (val == 0){
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if (pbi->nsev<pbi->zsv){
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pbi->nsta = STATE_ALARM;
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pbi->nsev = pbi->zsv;
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}
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}else{
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if (pbi->nsev<pbi->osv){
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pbi->nsta = STATE_ALARM;
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pbi->nsev = pbi->osv;
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}
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}
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/* check for cos alarm */
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if(pbi->lalm==udfUshort) pbi->lalm = val;
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if(val == pbi->lalm) return;
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if (pbi->nsev<pbi->cosv) {
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pbi->nsta = COS_ALARM;
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pbi->nsev = pbi->cosv;
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}
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pbi->lalm = val;
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return;
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}
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static void monitor(pbi)
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struct biRecord *pbi;
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{
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unsigned short monitor_mask;
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short stat,sevr,nsta,nsev;
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/* get previous stat and sevr and new stat and sevr*/
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stat=pbi->stat;
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sevr=pbi->sevr;
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nsta=pbi->nsta;
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nsev=pbi->nsev;
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/*set current stat and sevr*/
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pbi->stat = nsta;
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pbi->sevr = nsev;
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pbi->nsta = 0;
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pbi->nsev = 0;
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monitor_mask = 0;
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/* alarm condition changed this scan */
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if (stat!=nsta || sevr!=nsev){
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/* post events for alarm condition change*/
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monitor_mask = DBE_ALARM;
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/* post stat and sevr fields */
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db_post_events(pbi,&pbi->stat,DBE_VALUE);
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db_post_events(pbi,&pbi->sevr,DBE_VALUE);
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}
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/* check for value change */
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if (pbi->mlst != pbi->val){
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/* post events for value change and archive change */
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monitor_mask |= (DBE_VALUE | DBE_LOG);
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/* update last value monitored */
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pbi->mlst = pbi->val;
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}
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/* send out monitors connected to the value field */
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if (monitor_mask){
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db_post_events(pbi,&pbi->val,monitor_mask);
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}
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if(pbi->oraw!=pbi->rval) {
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db_post_events(pbi,&pbi->rval,monitor_mask|DBE_VALUE);
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pbi->oraw = pbi->rval;
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}
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return;
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}
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