permissiveRecord.c

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/*************************************************************************\
* Copyright (c) 2008 UChicago Argonne LLC, as Operator of Argonne
*     National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
*     Operator of Los Alamos National Laboratory.
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/

/* recPermissive.c - Record Support Routines for Permissive records */
/*
 *      Original Author: Bob Dalesio
 *      Date:            10-10-90
 */

#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>

#include "dbDefs.h"
#include "epicsPrint.h"
#include "dbAccess.h"
#include "dbEvent.h"
#include "dbFldTypes.h"
#include "errMdef.h"
#include "recSup.h"
#include "recGbl.h"

#define GEN_SIZE_OFFSET
#include "permissiveRecord.h"
#undef  GEN_SIZE_OFFSET
#include "epicsExport.h"

/* Create RSET - Record Support Entry Table*/
#define report NULL
#define initialize NULL
#define init_record NULL
static long process(struct dbCommon *);
#define special NULL
#define get_value NULL
#define cvt_dbaddr NULL
#define get_array_info NULL
#define put_array_info NULL
#define get_units NULL
#define get_precision NULL
#define get_enum_str NULL
#define get_enum_strs NULL
#define put_enum_str NULL
#define get_graphic_double NULL
#define get_control_double NULL
#define get_alarm_double NULL

rset permissiveRSET={
    RSETNUMBER,
    report,
    initialize,
    init_record,
    process,
    special,
    get_value,
    cvt_dbaddr,
    get_array_info,
    put_array_info,
    get_units,
    get_precision,
    get_enum_str,
    get_enum_strs,
    put_enum_str,
    get_graphic_double,
    get_control_double,
    get_alarm_double
};
epicsExportAddress(rset,permissiveRSET);

static void monitor(permissiveRecord *);

static long process(struct dbCommon *pcommon)
{
    struct permissiveRecord *prec = (struct permissiveRecord *)pcommon;

    prec->pact=TRUE;
    prec->udf=FALSE;
    recGblGetTimeStamp(prec);
    monitor(prec);
    recGblFwdLink(prec);
    prec->pact=FALSE;
    return(0);
}

static void monitor(permissiveRecord *prec)
{
    unsigned short  monitor_mask;
    unsigned short  val,oval,wflg,oflg;

    monitor_mask = recGblResetAlarms(prec);
    /* get val,oval,wflg,oflg*/
    val=prec->val;
    oval=prec->oval;
    wflg=prec->wflg;
    oflg=prec->oflg;
    /*set  oval and oflg*/
    prec->oval = val;
    prec->oflg = wflg;
    if(oval != val) {
        db_post_events(prec,&prec->val,
        monitor_mask|DBE_VALUE|DBE_LOG);
    }
    if(oflg != wflg) {
        db_post_events(prec,&prec->wflg,
        monitor_mask|DBE_VALUE|DBE_LOG);
    }
    return;
}