ab7011a214
empty string to char conversions now produce 0, not '0'. Record types ANSIfied by John Hammonds.
1492 lines
44 KiB
C
1492 lines
44 KiB
C
/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, 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 Versions 3.13.7
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* and higher are 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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/* dbAccess.c */
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/* $Id$ */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 11-7-90
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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 "epicsThread.h"
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#include "errlog.h"
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#include "cantProceed.h"
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#include "cvtFast.h"
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#include "epicsTime.h"
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#include "alarm.h"
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#include "ellLib.h"
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#include "dbStaticLib.h"
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#include "dbBase.h"
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#include "link.h"
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#include "dbFldTypes.h"
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#include "recSup.h"
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#include "devSup.h"
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#include "caeventmask.h"
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#include "db_field_log.h"
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#include "dbCommon.h"
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#include "dbFldTypes.h"
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#include "special.h"
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#include "errMdef.h"
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#define epicsExportSharedSymbols
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#include "dbAddr.h"
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#include "callback.h"
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#include "dbScan.h"
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#include "dbLock.h"
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#include "dbEvent.h"
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#include "dbConvert.h"
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#include "dbConvertFast.h"
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#include "epicsEvent.h"
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#include "dbCa.h"
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#include "dbBkpt.h"
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#include "dbNotify.h"
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#include "dbAccessDefs.h"
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#include "recGbl.h"
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epicsShareDef struct dbBase *pdbbase = 0;
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epicsShareDef volatile int interruptAccept=FALSE;
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static short mapDBFToDBR[DBF_NTYPES] = {
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DBR_STRING, DBR_CHAR, DBR_UCHAR, DBR_SHORT, DBR_USHORT,
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DBR_LONG, DBR_ULONG, DBR_FLOAT, DBR_DOUBLE,
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DBR_ENUM, DBR_ENUM, DBR_ENUM,
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DBR_STRING, DBR_STRING, DBR_STRING, DBR_NOACCESS
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};
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/*
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* The number of consecutive attempts that can be made to process an
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* active record before a SCAN_ALARM is raised. Active records
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* (records with the pact flag set) cannot be processed until
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* that flag becomes unset.
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*/
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#define MAX_LOCK 10
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/* The following is to handle SPC_AS */
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static SPC_ASCALLBACK spcAsCallback = 0;
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void epicsShareAPI dbSpcAsRegisterCallback(SPC_ASCALLBACK func)
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{
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spcAsCallback = func;
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}
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long epicsShareAPI dbPutSpecial(DBADDR *paddr,int pass)
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{
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long int (*pspecial)()=NULL;
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struct rset *prset;
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dbCommon *precord=(dbCommon *)(paddr->precord);
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long status=0;
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long special=paddr->special;
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prset = dbGetRset(paddr);
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if(special<100) { /*global processing*/
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if((special==SPC_NOMOD) && (pass==0)) {
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status = S_db_noMod;
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recGblDbaddrError(status,paddr,"dbPut");
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return(status);
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}else if(special==SPC_SCAN){
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if(pass==0)
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scanDelete(precord);
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else
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scanAdd(precord);
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}else if((special==SPC_AS) && (pass==1)) {
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if(spcAsCallback) (*spcAsCallback)(precord);
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}
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}else {
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if( prset && (pspecial = (prset->special))) {
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status=(*pspecial)(paddr,pass);
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if(status) return(status);
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} else if(pass==0){
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recGblRecSupError(S_db_noSupport,paddr,"dbPut", "special");
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return(S_db_noSupport);
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}
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}
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return(0);
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}
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static void get_enum_strs(DBADDR *paddr, char **ppbuffer,
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struct rset *prset,long *options)
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{
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short field_type=paddr->field_type;
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dbFldDes *pdbFldDes = (dbFldDes *)paddr->pfldDes;
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dbMenu *pdbMenu;
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dbDeviceMenu *pdbDeviceMenu;
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char **papChoice;
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unsigned long no_str;
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char *ptemp;
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struct dbr_enumStrs *pdbr_enumStrs=(struct dbr_enumStrs*)(*ppbuffer);
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int i;
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memset(pdbr_enumStrs,'\0',dbr_enumStrs_size);
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switch(field_type) {
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case DBF_ENUM:
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if( prset && prset->get_enum_strs ) {
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(*prset->get_enum_strs)(paddr,pdbr_enumStrs);
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} else {
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*options = (*options)^DBR_ENUM_STRS;/*Turn off option*/
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}
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break;
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case DBF_MENU:
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pdbMenu = (dbMenu *)pdbFldDes->ftPvt;
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no_str = pdbMenu->nChoice;
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papChoice= pdbMenu->papChoiceValue;
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goto choice_common;
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case DBF_DEVICE:
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pdbDeviceMenu = (dbDeviceMenu *)pdbFldDes->ftPvt;
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if(!pdbDeviceMenu) {
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*options = (*options)^DBR_ENUM_STRS;/*Turn off option*/
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break;
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}
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no_str = pdbDeviceMenu->nChoice;
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papChoice = pdbDeviceMenu->papChoice;
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goto choice_common;
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choice_common:
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i = sizeof(pdbr_enumStrs->strs)/
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sizeof(pdbr_enumStrs->strs[0]);
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if(i<no_str) no_str = i;
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pdbr_enumStrs->no_str = no_str;
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ptemp = &(pdbr_enumStrs->strs[0][0]);
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for (i=0; i<no_str; i++) {
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if(papChoice[i]==NULL) *ptemp=0;
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else {
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strncpy(ptemp,papChoice[i],
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sizeof(pdbr_enumStrs->strs[0]));
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*(ptemp+sizeof(pdbr_enumStrs->strs[0])-1) = 0;
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}
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ptemp += sizeof(pdbr_enumStrs->strs[0]);
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}
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break;
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default:
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*options = (*options)^DBR_ENUM_STRS;/*Turn off option*/
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break;
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_enumStrs_size;
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return;
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}
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static void get_graphics(DBADDR *paddr, char **ppbuffer,
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struct rset *prset,long *options)
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{
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struct dbr_grDouble grd;
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int got_data=FALSE;
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grd.upper_disp_limit = grd.lower_disp_limit = 0.0;
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if( prset && prset->get_graphic_double ) {
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(*prset->get_graphic_double)(paddr,&grd);
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got_data=TRUE;
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}
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if( (*options) & (DBR_GR_LONG) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_grLong *pgr=(struct dbr_grLong*)pbuffer;
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pgr->upper_disp_limit = grd.upper_disp_limit;
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pgr->lower_disp_limit = grd.lower_disp_limit;
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} else {
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memset(pbuffer,'\0',dbr_grLong_size);
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*options = (*options) ^ DBR_GR_LONG; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_grLong_size;
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}
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if( (*options) & (DBR_GR_DOUBLE) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_grDouble *pgr=(struct dbr_grDouble*)pbuffer;
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pgr->upper_disp_limit = grd.upper_disp_limit;
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pgr->lower_disp_limit = grd.lower_disp_limit;
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} else {
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memset(pbuffer,'\0',dbr_grDouble_size);
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*options = (*options) ^ DBR_GR_DOUBLE; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_grDouble_size;
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}
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return;
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}
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static void get_control(DBADDR *paddr, char **ppbuffer,
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struct rset *prset,long *options)
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{
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struct dbr_ctrlDouble ctrld;
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int got_data=FALSE;
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ctrld.upper_ctrl_limit = ctrld.lower_ctrl_limit = 0.0;
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if( prset && prset->get_control_double ) {
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(*prset->get_control_double)(paddr,&ctrld);
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got_data=TRUE;
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}
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if( (*options) & (DBR_CTRL_LONG) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_ctrlLong *pctrl=(struct dbr_ctrlLong*)pbuffer;
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pctrl->upper_ctrl_limit = ctrld.upper_ctrl_limit;
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pctrl->lower_ctrl_limit = ctrld.lower_ctrl_limit;
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} else {
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memset(pbuffer,'\0',dbr_ctrlLong_size);
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*options = (*options) ^ DBR_CTRL_LONG; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_ctrlLong_size;
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}
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if( (*options) & (DBR_CTRL_DOUBLE) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_ctrlDouble *pctrl=(struct dbr_ctrlDouble*)pbuffer;
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pctrl->upper_ctrl_limit = ctrld.upper_ctrl_limit;
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pctrl->lower_ctrl_limit = ctrld.lower_ctrl_limit;
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} else {
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memset(pbuffer,'\0',dbr_ctrlDouble_size);
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*options = (*options) ^ DBR_CTRL_DOUBLE; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_ctrlDouble_size;
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}
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return;
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}
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static void get_alarm(DBADDR *paddr, char **ppbuffer,
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struct rset *prset,long *options)
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{
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struct dbr_alDouble ald;
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int got_data=FALSE;
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ald.upper_alarm_limit = ald.upper_warning_limit = 0.0;
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ald.lower_warning_limit = ald.lower_alarm_limit = 0.0;
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if( prset && prset->get_alarm_double ) {
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(*prset->get_alarm_double)(paddr,&ald);
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got_data=TRUE;
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}
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if( (*options) & (DBR_AL_LONG) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_alLong *pal=(struct dbr_alLong*)pbuffer;
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pal->upper_alarm_limit = ald.upper_alarm_limit;
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pal->upper_warning_limit = ald.upper_warning_limit;
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pal->lower_warning_limit = ald.lower_warning_limit;
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pal->lower_alarm_limit = ald.lower_alarm_limit;
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} else {
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memset(pbuffer,'\0',dbr_alLong_size);
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*options = (*options) ^ DBR_AL_LONG; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_alLong_size;
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}
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if( (*options) & (DBR_AL_DOUBLE) ) {
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char *pbuffer=*ppbuffer;
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if(got_data) {
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struct dbr_alDouble *pal=(struct dbr_alDouble*)pbuffer;
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pal->upper_alarm_limit = ald.upper_alarm_limit;
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pal->upper_warning_limit = ald.upper_warning_limit;
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pal->lower_warning_limit = ald.lower_warning_limit;
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pal->lower_alarm_limit = ald.lower_alarm_limit;
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} else {
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memset(pbuffer,'\0',dbr_alDouble_size);
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*options = (*options) ^ DBR_AL_DOUBLE; /*Turn off option*/
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}
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*ppbuffer = ((char *)*ppbuffer) + dbr_alDouble_size;
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}
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return;
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}
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static void getOptions(DBADDR *paddr,char **poriginal,long *options,void *pflin)
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{
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db_field_log *pfl= (db_field_log *)pflin;
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struct rset *prset;
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short field_type=paddr->field_type;
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dbCommon *pcommon;
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char *pbuffer = *poriginal;
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prset=dbGetRset(paddr);
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/* Process options */
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pcommon = (dbCommon *)(paddr->precord);
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if( (*options) & DBR_STATUS ) {
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unsigned short *pushort = (unsigned short *)pbuffer;
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if(pfl!=NULL) {
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*pushort++ = pfl->stat;
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*pushort++ = pfl->sevr;
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} else {
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*pushort++ = pcommon->stat;
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*pushort++ = pcommon->sevr;
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}
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*pushort++ = pcommon->acks;
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*pushort++ = pcommon->ackt;
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pbuffer = (char *)pushort;
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}
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if( (*options) & DBR_UNITS ) {
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memset(pbuffer,'\0',dbr_units_size);
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if( prset && prset->get_units ){
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(*prset->get_units)(paddr, pbuffer);
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pbuffer[DB_UNITS_SIZE-1] = '\0';
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} else {
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*options ^= DBR_UNITS; /*Turn off DBR_UNITS*/
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}
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pbuffer += dbr_units_size;
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}
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if( (*options) & DBR_PRECISION ) {
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if((field_type==DBF_FLOAT || field_type==DBF_DOUBLE)
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&& prset && prset->get_precision ){
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(*prset->get_precision)(paddr,pbuffer);
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} else {
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*options ^= DBR_PRECISION; /*Turn off DBR_PRECISION*/
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}
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pbuffer += dbr_precision_size;
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}
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if( (*options) & DBR_TIME ) {
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epicsUInt32 *ptime = (epicsUInt32 *)pbuffer;
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if(pfl!=NULL) {
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*ptime++ = pfl->time.secPastEpoch;
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*ptime++ = pfl->time.nsec;
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} else {
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*ptime++ = pcommon->time.secPastEpoch;
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*ptime++ = pcommon->time.nsec;
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}
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pbuffer = (char *)ptime;
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}
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if( (*options) & DBR_ENUM_STRS )
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get_enum_strs(paddr, &pbuffer, prset, options);
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if( (*options) & (DBR_GR_LONG|DBR_GR_DOUBLE ))
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get_graphics(paddr, &pbuffer, prset, options);
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if((*options) & (DBR_CTRL_LONG | DBR_CTRL_DOUBLE ))
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get_control(paddr, &pbuffer, prset, options);
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if((*options) & (DBR_AL_LONG | DBR_AL_DOUBLE ))
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get_alarm(paddr, &pbuffer, prset, options);
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*poriginal = pbuffer;
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}
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struct rset * epicsShareAPI dbGetRset(const struct dbAddr *paddr)
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{
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struct dbFldDes *pfldDes = (struct dbFldDes *)paddr->pfldDes;
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if(!pfldDes) return(0);
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return(pfldDes->pdbRecordType->prset);
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}
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long epicsShareAPI dbPutAttribute(
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const char *recordTypename,const char *name,const char*value)
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{
|
||
DBENTRY dbEntry;
|
||
DBENTRY *pdbEntry = &dbEntry;
|
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long status=0;
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|
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if(!pdbbase) return(S_db_notFound);
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dbInitEntry(pdbbase,pdbEntry);
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status = dbFindRecordType(pdbEntry,recordTypename);
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if(!status) status = dbPutRecordAttribute(pdbEntry,name,value);
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dbFinishEntry(pdbEntry);
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if(status) errMessage(status,"dbPutAttribute failure");
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return(status);
|
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}
|
||
|
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int epicsShareAPI dbIsValueField(const struct dbFldDes *pdbFldDes)
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{
|
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if(pdbFldDes->pdbRecordType->indvalFlddes == pdbFldDes->indRecordType)
|
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return(TRUE);
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||
else
|
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return(FALSE);
|
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}
|
||
|
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int epicsShareAPI dbGetFieldIndex(const struct dbAddr *paddr)
|
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{
|
||
return(((struct dbFldDes *)paddr->pfldDes)->indRecordType);
|
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}
|
||
|
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long epicsShareAPI dbGetNelements(const struct link *plink,long *nelements)
|
||
{
|
||
switch(plink->type) {
|
||
case CONSTANT:
|
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*nelements = 0;
|
||
return(0);
|
||
case DB_LINK: {
|
||
DBADDR *paddr = (DBADDR *)plink->value.pv_link.pvt;
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||
*nelements = paddr->no_elements;
|
||
return(0);
|
||
}
|
||
case CA_LINK:
|
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return(dbCaGetNelements(plink,nelements));
|
||
default:
|
||
break;
|
||
}
|
||
return(S_db_badField);
|
||
}
|
||
|
||
int epicsShareAPI dbIsLinkConnected(const struct link *plink)
|
||
{
|
||
switch(plink->type) {
|
||
case DB_LINK: return(TRUE);
|
||
case CA_LINK: return(dbCaIsLinkConnected(plink));
|
||
default: break;
|
||
}
|
||
return(FALSE);
|
||
}
|
||
|
||
int epicsShareAPI dbGetLinkDBFtype(const struct link *plink)
|
||
{
|
||
switch(plink->type) {
|
||
case DB_LINK:
|
||
{
|
||
DBADDR *paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
|
||
return((int)paddr->field_type);
|
||
}
|
||
case CA_LINK: return(dbCaGetLinkDBFtype(plink));
|
||
default: break;
|
||
}
|
||
return(-1);
|
||
}
|
||
|
||
/*
|
||
* Process a record if its scan field is passive.
|
||
* Will notify if processing is complete by callback.
|
||
* (only if you are interested in completion)
|
||
*/
|
||
long epicsShareAPI dbScanPassive(dbCommon *pfrom, dbCommon *pto)
|
||
{
|
||
long status;
|
||
|
||
/* if not passive just return success */
|
||
if(pto->scan != 0) return(0);
|
||
|
||
if(pfrom && pfrom->ppn) dbNotifyAdd(pfrom,pto);
|
||
status = dbProcess(pto);
|
||
return(status);
|
||
}
|
||
|
||
/*KLUDGE: Following needed so that dbPutLink to PROC field works correctly*/
|
||
long epicsShareAPI dbScanLink(dbCommon *pfrom, dbCommon *pto)
|
||
{
|
||
long status;
|
||
unsigned char pact;
|
||
|
||
if(pfrom && pfrom->ppn) dbNotifyAdd(pfrom,pto);
|
||
pact = pfrom->pact;
|
||
pfrom->pact = TRUE;
|
||
status = dbProcess(pto);
|
||
pfrom->pact = pact;
|
||
return(status);
|
||
}
|
||
|
||
void epicsShareAPI dbScanFwdLink(struct link *plink)
|
||
{
|
||
dbCommon *precord;
|
||
struct pv_link *pvlink;
|
||
short fwdLinkValue;
|
||
|
||
if(plink->type!=DB_LINK && plink->type!=CA_LINK) return;
|
||
pvlink = &plink->value.pv_link;
|
||
precord = pvlink->precord;
|
||
if(plink->type==DB_LINK) {
|
||
dbAddr *paddr = (dbAddr *)plink->value.pv_link.pvt;
|
||
dbScanPassive(precord,paddr->precord);
|
||
return;
|
||
}
|
||
if(!(pvlink->pvlMask & pvlOptFWD)) return;
|
||
fwdLinkValue = 1;
|
||
dbCaPutLink(plink,DBR_SHORT,&fwdLinkValue,1);
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* Process the record.
|
||
* 1. Check for breakpoints.
|
||
* 2. Check the process active flag (PACT).
|
||
* 3. Check the disable link.
|
||
* 4. Check the RSET (record support entry table) exists.
|
||
* 5. Run the process routine specific to the record type.
|
||
* 6. Check to see if record contents should be automatically printed.
|
||
*/
|
||
long epicsShareAPI dbProcess(dbCommon *precord)
|
||
{
|
||
struct rset *prset = precord->rset;
|
||
dbRecordType *pdbRecordType = precord->rdes;
|
||
unsigned char tpro=precord->tpro;
|
||
long status = 0;
|
||
int *ptrace;
|
||
int set_trace=FALSE;
|
||
dbFldDes *pdbFldDes;
|
||
int callNotifyCompletion = FALSE;
|
||
|
||
ptrace = dbLockSetAddrTrace(precord);
|
||
/*
|
||
* Note that it is likely that if any changes are made
|
||
* to dbProcess() corresponding changes will have to
|
||
* be made in the breakpoint handler.
|
||
*/
|
||
|
||
/* see if there are any stopped records or breakpoints */
|
||
if (lset_stack_count != 0) {
|
||
/*
|
||
* Check to see if the record should be processed
|
||
* and activate breakpoint accordingly. If this
|
||
* function call returns non-zero, skip record
|
||
* support and fall out of dbProcess(). This is
|
||
* done so that a dbContTask() can be spawned to
|
||
* take over record processing for the lock set
|
||
* containing a breakpoint.
|
||
*/
|
||
if (dbBkpt(precord))
|
||
goto all_done;
|
||
}
|
||
|
||
/* check for trace processing*/
|
||
if (tpro) {
|
||
if(*ptrace==0) {
|
||
*ptrace = 1;
|
||
set_trace = TRUE;
|
||
}
|
||
}
|
||
|
||
/* If already active dont process */
|
||
if (precord->pact) {
|
||
unsigned short monitor_mask;
|
||
|
||
if (*ptrace) printf("%s: Active %s\n",
|
||
epicsThreadGetNameSelf(), precord->name);
|
||
/* raise scan alarm after MAX_LOCK times */
|
||
if (precord->stat==SCAN_ALARM) goto all_done;
|
||
if (precord->lcnt++ !=MAX_LOCK) goto all_done;
|
||
if (precord->sevr>=INVALID_ALARM) goto all_done;
|
||
recGblSetSevr(precord, SCAN_ALARM, INVALID_ALARM);
|
||
monitor_mask = recGblResetAlarms(precord);
|
||
monitor_mask |= DBE_VALUE|DBE_LOG;
|
||
pdbFldDes = pdbRecordType->papFldDes[pdbRecordType->indvalFlddes];
|
||
db_post_events(precord,
|
||
(void *)(((char *)precord) + pdbFldDes->offset),
|
||
monitor_mask);
|
||
goto all_done;
|
||
}
|
||
else precord->lcnt = 0;
|
||
|
||
/*
|
||
* Check the record disable link. A record will not be
|
||
* processed if the value retrieved through this link
|
||
* is equal to constant set in the record's disv field.
|
||
*/
|
||
status = dbGetLink(&(precord->sdis),DBR_SHORT,&(precord->disa),0,0);
|
||
|
||
/* if disabled check disable alarm severity and return success */
|
||
if (precord->disa == precord->disv) {
|
||
if(*ptrace) printf("%s: Disabled %s\n",
|
||
epicsThreadGetNameSelf(), precord->name);
|
||
/*take care of caching and notifyCompletion*/
|
||
precord->rpro = FALSE;
|
||
precord->putf = FALSE;
|
||
callNotifyCompletion = TRUE;
|
||
/* raise disable alarm */
|
||
if (precord->stat==DISABLE_ALARM) goto all_done;
|
||
precord->sevr = precord->diss;
|
||
precord->stat = DISABLE_ALARM;
|
||
precord->nsev = 0;
|
||
precord->nsta = 0;
|
||
db_post_events(precord, &precord->stat, DBE_VALUE);
|
||
db_post_events(precord, &precord->sevr, DBE_VALUE);
|
||
pdbFldDes = pdbRecordType->papFldDes[pdbRecordType->indvalFlddes];
|
||
db_post_events(precord,
|
||
(void *)(((char *)precord) + pdbFldDes->offset),
|
||
DBE_VALUE|DBE_ALARM);
|
||
goto all_done;
|
||
}
|
||
|
||
/* locate record processing routine */
|
||
/* put this in iocInit() !!! */
|
||
if (!(prset=precord->rset) || !(prset->process)) {
|
||
callNotifyCompletion = TRUE;
|
||
precord->pact=1;/*set pact TRUE so error is issued only once*/
|
||
recGblRecordError(S_db_noRSET, (void *)precord, "dbProcess");
|
||
status = S_db_noRSET;
|
||
if (*ptrace) printf("%s: No RSET for %s\n",
|
||
epicsThreadGetNameSelf(), precord->name);
|
||
goto all_done;
|
||
}
|
||
if(*ptrace) printf("%s: Process %s\n",
|
||
epicsThreadGetNameSelf(), precord->name);
|
||
/* process record */
|
||
status = (*prset->process)(precord);
|
||
/* Print record's fields if PRINT_MASK set in breakpoint field */
|
||
if (lset_stack_count != 0) {
|
||
dbPrint(precord);
|
||
}
|
||
all_done:
|
||
if (set_trace) *ptrace = 0;
|
||
if(callNotifyCompletion && precord->ppn) dbNotifyCompletion(precord);
|
||
return(status);
|
||
}
|
||
|
||
/*
|
||
* Fill out a database structure (*paddr) for
|
||
* a record given by the name "pname."
|
||
*
|
||
* Returns error codes from StaticLib module, not
|
||
* from dbAccess.
|
||
*/
|
||
long epicsShareAPI dbNameToAddr(const char *pname,DBADDR *paddr)
|
||
{
|
||
DBENTRY dbEntry;
|
||
long status=0;
|
||
struct rset *prset;
|
||
dbFldDes *pflddes;
|
||
|
||
if((pname == NULL) || (*pname == '\0'))
|
||
return S_db_notFound;
|
||
if(!pdbbase) return(S_db_notFound);
|
||
dbInitEntry(pdbbase,&dbEntry);
|
||
status = dbFindRecord(&dbEntry,pname);
|
||
if(!status && !dbEntry.pfield) status=dbFindField(&dbEntry,"VAL");
|
||
if(status) {
|
||
dbFinishEntry(&dbEntry);
|
||
return(status);
|
||
}
|
||
paddr->precord = dbEntry.precnode->precord;
|
||
paddr->pfield = dbEntry.pfield;
|
||
pflddes = dbEntry.pflddes;
|
||
dbFinishEntry(&dbEntry);
|
||
paddr->pfldDes = (void *)pflddes;
|
||
paddr->field_type = pflddes->field_type;
|
||
paddr->dbr_field_type = mapDBFToDBR[pflddes->field_type];
|
||
paddr->field_size = pflddes->size;
|
||
paddr->special = pflddes->special;
|
||
|
||
/*if special is SPC_DBADDR then call cvt_dbaddr */
|
||
/*it may change pfield,no_elements,field_type,dbr_field_type,*/
|
||
/*field_size,and special*/
|
||
paddr->no_elements=1;
|
||
if(((paddr->special)==SPC_DBADDR)
|
||
&& (prset=dbGetRset(paddr))
|
||
&& (prset->cvt_dbaddr)) status = (*prset->cvt_dbaddr)(paddr);
|
||
return(status);
|
||
}
|
||
|
||
/* JOH 10-19-04 */
|
||
static char * dbCopyInNameComponentOfPV (
|
||
char * pBuf, unsigned bufLen, const char * pComponent )
|
||
{
|
||
unsigned compLen = strlen ( pComponent );
|
||
if ( compLen < bufLen ) {
|
||
strcpy ( pBuf, pComponent );
|
||
return pBuf + compLen;
|
||
}
|
||
else {
|
||
unsigned reducedSize = bufLen - 1u;
|
||
strncpy ( pBuf, pComponent, reducedSize );
|
||
pBuf[reducedSize] = '\0';
|
||
return pBuf + reducedSize;
|
||
}
|
||
}
|
||
/*
|
||
* Copies PV name into pBuf of length bufLen
|
||
*
|
||
* Returns the number of bytes written to pBuf
|
||
* not including null termination.
|
||
* JOH 10-19-04
|
||
*/
|
||
unsigned dbNameOfPV (
|
||
const dbAddr * paddr, char * pBuf, unsigned bufLen )
|
||
{
|
||
dbFldDes * pfldDes = paddr->pfldDes;
|
||
char * pBufTmp = pBuf;
|
||
if ( bufLen == 0u ) {
|
||
return 0u;
|
||
}
|
||
pBufTmp = dbCopyInNameComponentOfPV (
|
||
pBufTmp, bufLen, paddr->precord->name );
|
||
pBufTmp = dbCopyInNameComponentOfPV (
|
||
pBufTmp, bufLen - ( pBufTmp - pBuf ), "." );
|
||
pBufTmp = dbCopyInNameComponentOfPV (
|
||
pBufTmp, bufLen - ( pBufTmp - pBuf ), pfldDes->name );
|
||
return pBufTmp - pBuf;
|
||
}
|
||
/*
|
||
* Returns the number of bytes in the PV name
|
||
* not including null termination.
|
||
* JOH 10-19-04
|
||
*/
|
||
unsigned dbNameSizeOfPV ( const dbAddr * paddr )
|
||
{
|
||
unsigned recNameLen = strlen ( paddr->precord->name );
|
||
dbFldDes * pfldDes = paddr->pfldDes;
|
||
unsigned fieldNameLen = strlen ( pfldDes->name );
|
||
return recNameLen + fieldNameLen + 1;
|
||
}
|
||
|
||
long epicsShareAPI dbValueSize(
|
||
short dbr_type
|
||
)
|
||
{
|
||
/* sizes for value associated with each DBR request type */
|
||
static long size[] = {
|
||
MAX_STRING_SIZE, /* STRING */
|
||
sizeof(epicsInt8), /* CHAR */
|
||
sizeof(epicsUInt8), /* UCHAR */
|
||
sizeof(epicsInt16), /* SHORT */
|
||
sizeof(epicsUInt16), /* USHORT */
|
||
sizeof(epicsInt32), /* LONG */
|
||
sizeof(epicsUInt32), /* ULONG */
|
||
sizeof(epicsFloat32), /* FLOAT */
|
||
sizeof(epicsFloat64), /* DOUBLE */
|
||
sizeof(epicsEnum16)}; /* ENUM */
|
||
|
||
return(size[dbr_type]);
|
||
}
|
||
|
||
|
||
long epicsShareAPI dbBufferSize(
|
||
short dbr_type,
|
||
long options,
|
||
long no_elements
|
||
)
|
||
{
|
||
long nbytes=0;
|
||
|
||
nbytes += dbValueSize(dbr_type) * no_elements;
|
||
if(options & DBR_STATUS) nbytes += dbr_status_size;
|
||
if(options & DBR_UNITS) nbytes += dbr_units_size;
|
||
if(options & DBR_PRECISION) nbytes += dbr_precision_size;
|
||
if(options & DBR_TIME) nbytes += dbr_time_size;
|
||
if(options & DBR_ENUM_STRS) nbytes += dbr_enumStrs_size;
|
||
if(options & DBR_GR_LONG) nbytes += dbr_grLong_size;
|
||
if(options & DBR_GR_DOUBLE) nbytes += dbr_grDouble_size;
|
||
if(options & DBR_CTRL_LONG) nbytes += dbr_ctrlLong_size;
|
||
if(options & DBR_CTRL_DOUBLE)nbytes += dbr_ctrlDouble_size;
|
||
if(options & DBR_AL_LONG) nbytes += dbr_alLong_size;
|
||
if(options & DBR_AL_DOUBLE) nbytes += dbr_alDouble_size;
|
||
return(nbytes);
|
||
}
|
||
int epicsShareAPI dbLoadDatabase(const char *file, const char *path, const char *subs)
|
||
{
|
||
return dbReadDatabase(&pdbbase, file, path, subs);
|
||
}
|
||
|
||
int epicsShareAPI dbLoadRecords(const char* file, const char* subs)
|
||
{
|
||
return dbReadDatabase(&pdbbase, file, 0, subs);
|
||
}
|
||
|
||
|
||
long epicsShareAPI dbGetLinkValue(struct link *plink,
|
||
short dbrType, void *pbuffer,long *poptions, long *pnRequest)
|
||
{
|
||
long status = 0;
|
||
|
||
if(plink->type==CONSTANT) {
|
||
if(poptions) *poptions = 0;
|
||
if(pnRequest) *pnRequest = 0;
|
||
} else if(plink->type==DB_LINK) {
|
||
struct pv_link *ppv_link = &(plink->value.pv_link);
|
||
DBADDR *paddr = ppv_link->pvt;
|
||
dbCommon *precord = plink->value.pv_link.precord;
|
||
|
||
/* scan passive records with links that are process passive */
|
||
if(ppv_link->pvlMask&pvlOptPP) {
|
||
dbCommon *pfrom = paddr->precord;
|
||
unsigned char pact;
|
||
|
||
pact = precord->pact;
|
||
precord->pact = TRUE;
|
||
status = dbScanPassive(precord,pfrom);
|
||
precord->pact = pact;
|
||
if(status) return(status);
|
||
}
|
||
if(ppv_link->pvlMask&pvlOptMS && precord!= paddr->precord)
|
||
recGblSetSevr(precord,LINK_ALARM,paddr->precord->sevr);
|
||
|
||
if(ppv_link->getCvt && ppv_link->lastGetdbrType==dbrType) {
|
||
status = (*ppv_link->getCvt)(paddr->pfield,pbuffer, paddr);
|
||
} else {
|
||
unsigned short dbfType= paddr->field_type;
|
||
long no_elements = paddr->no_elements;
|
||
|
||
if((dbrType<0) || (dbrType>DBR_ENUM) || (dbfType > DBF_DEVICE)) {
|
||
status = S_db_badDbrtype;
|
||
recGblRecordError(status,(void *)precord,"GetLinkValue Failed");
|
||
recGblSetSevr(precord,LINK_ALARM,INVALID_ALARM);
|
||
return(status);
|
||
}
|
||
/* attempt to make a fast link */
|
||
if((!poptions || (*poptions == 0))
|
||
&& (no_elements == 1)
|
||
&& (!pnRequest || (*pnRequest == 1))
|
||
&& (paddr->special!=SPC_ATTRIBUTE) )
|
||
{
|
||
ppv_link->getCvt = dbFastGetConvertRoutine[dbfType][dbrType];
|
||
status = (*ppv_link->getCvt) (paddr->pfield,pbuffer, paddr);
|
||
}else{
|
||
status=dbGet(paddr,dbrType,pbuffer,poptions,pnRequest,NULL);
|
||
ppv_link->getCvt = 0;
|
||
}
|
||
}
|
||
ppv_link->lastGetdbrType = dbrType;
|
||
if(status){
|
||
recGblRecordError(status,(void *)precord,"dbGetLinkValue");
|
||
recGblSetSevr(precord,LINK_ALARM,INVALID_ALARM);
|
||
}
|
||
}else if(plink->type==CA_LINK) {
|
||
struct dbCommon *precord = plink->value.pv_link.precord;
|
||
const struct pv_link *pcalink = &(plink->value.pv_link);
|
||
unsigned short sevr;
|
||
|
||
status=dbCaGetLink(plink,dbrType,pbuffer,&sevr,pnRequest);
|
||
if(status) {
|
||
recGblSetSevr(precord,LINK_ALARM,INVALID_ALARM);
|
||
}else if(pcalink->pvlMask&pvlOptMS){
|
||
recGblSetSevr(precord,LINK_ALARM,sevr);
|
||
}
|
||
if(poptions) *poptions = 0;
|
||
} else {
|
||
cantProceed("dbGetLinkValue: Illegal link type");
|
||
}
|
||
return(status);
|
||
}
|
||
|
||
long epicsShareAPI dbPutLinkValue(struct link *plink,
|
||
short dbrType,const void *pbuffer,long nRequest)
|
||
{
|
||
long status=0;
|
||
|
||
if(plink->type==DB_LINK) {
|
||
struct dbCommon *psource = plink->value.pv_link.precord;
|
||
struct pv_link *ppv_link= &(plink->value.pv_link);
|
||
DBADDR *paddr = (DBADDR*)(ppv_link->pvt);
|
||
dbCommon *pdest = paddr->precord;
|
||
|
||
status=dbPut(paddr,dbrType,pbuffer,nRequest);
|
||
if(ppv_link->pvlMask&pvlOptMS)
|
||
recGblSetSevr(pdest,LINK_ALARM,psource->nsev);
|
||
if(status) return(status);
|
||
if((paddr->pfield==(void *)&pdest->proc)
|
||
|| (ppv_link->pvlMask&pvlOptPP && pdest->scan==0)) {
|
||
/*if dbPutField caused asyn record to process */
|
||
/* ask for reprocessing*/
|
||
if(pdest->putf) {
|
||
pdest->rpro = TRUE;
|
||
} else { /* otherwise ask for the record to be processed*/
|
||
status=dbScanLink(psource,pdest);
|
||
}
|
||
}
|
||
if(status) recGblSetSevr(psource,LINK_ALARM,INVALID_ALARM);
|
||
} else if(plink->type==CA_LINK) {
|
||
struct dbCommon *psource = plink->value.pv_link.precord;
|
||
|
||
status = dbCaPutLink(plink,dbrType,pbuffer, nRequest);
|
||
if(status < 0)
|
||
recGblSetSevr(psource,LINK_ALARM,INVALID_ALARM);
|
||
} else {
|
||
cantProceed("dbPutLinkValue: Illegal link type");
|
||
}
|
||
return(status);
|
||
}
|
||
|
||
long epicsShareAPI dbGetField(DBADDR *paddr,short dbrType,
|
||
void *pbuffer, long *options,long *nRequest,void *pflin)
|
||
{
|
||
short dbfType = paddr->field_type;
|
||
dbCommon *precord = (dbCommon *)(paddr->precord);
|
||
long status = 0;
|
||
|
||
dbScanLock(precord);
|
||
if(dbfType>=DBF_INLINK && dbfType<=DBF_FWDLINK) {
|
||
DBENTRY dbEntry;
|
||
dbFldDes *pfldDes = (dbFldDes *)paddr->pfldDes;
|
||
char *rtnString;
|
||
char *pbuf = (char *)pbuffer;
|
||
|
||
if(dbrType!=DBR_STRING) {
|
||
status = S_db_badDbrtype;
|
||
goto done;
|
||
}
|
||
if (options && (*options))
|
||
getOptions(paddr, &pbuf, options, pflin);
|
||
if(nRequest && *nRequest==0) goto done;
|
||
dbInitEntry(pdbbase,&dbEntry);
|
||
status = dbFindRecord(&dbEntry,precord->name);
|
||
if(!status) status = dbFindField(&dbEntry,pfldDes->name);
|
||
if(!status) {
|
||
rtnString = dbGetString(&dbEntry);
|
||
/*begin kludge for old db_access MAX_STRING_SIZE*/
|
||
if(strlen(rtnString)>=MAX_STRING_SIZE) {
|
||
strncpy(pbuf,rtnString,MAX_STRING_SIZE-1);
|
||
pbuf[MAX_STRING_SIZE-1] = 0;
|
||
} else {
|
||
strcpy(pbuf,rtnString);
|
||
}
|
||
/*end kludge for old db_access MAX_STRING_SIZE*/
|
||
}
|
||
dbFinishEntry(&dbEntry);
|
||
} else {
|
||
status = dbGet(paddr,dbrType,pbuffer,options,nRequest,pflin);
|
||
}
|
||
done:
|
||
dbScanUnlock(precord);
|
||
return(status);
|
||
}
|
||
|
||
long epicsShareAPI dbGet(DBADDR *paddr,short dbrType,
|
||
void *pbuffer,long *options,long *nRequest,void *pflin)
|
||
{
|
||
db_field_log *pfl= (db_field_log *)pflin;
|
||
long no_elements=paddr->no_elements;
|
||
long offset;
|
||
struct rset *prset;
|
||
short field_type=paddr->field_type;
|
||
long (*pconvert_routine)();
|
||
long status = 0;
|
||
char message[80];
|
||
|
||
if(paddr->special == SPC_ATTRIBUTE) {
|
||
if(dbrType!=DBR_STRING) return(S_db_badDbrtype);
|
||
if(!paddr->pfield) return(S_db_badField);
|
||
strcpy((char *)pbuffer,(char *)paddr->pfield);
|
||
return(0);
|
||
}
|
||
prset=dbGetRset(paddr);
|
||
if(options && (*options)) {
|
||
char *pbuf = pbuffer;
|
||
|
||
getOptions(paddr,&pbuf,options,pflin);
|
||
pbuffer = pbuf;
|
||
}
|
||
if(nRequest && *nRequest==0) return(0);
|
||
/* Check for valid request */
|
||
if( INVALID_DB_REQ(dbrType) || (field_type>DBF_DEVICE) ){
|
||
sprintf(message,"dbGet - database request type is %d",dbrType);
|
||
recGblDbaddrError(S_db_badDbrtype,paddr,message);
|
||
return(S_db_badDbrtype);
|
||
}
|
||
/* check for array */
|
||
if( no_elements>1 && prset && (prset->get_array_info) ) {
|
||
status = (*prset->get_array_info)(paddr,&no_elements,&offset);
|
||
}
|
||
else offset=0;
|
||
if(offset==0 && (!nRequest || no_elements==1)) {
|
||
if(nRequest) *nRequest = 1;
|
||
if(pfl!=NULL) {
|
||
DBADDR localAddr;
|
||
|
||
localAddr = *paddr; /*Structure copy*/
|
||
localAddr.pfield = (char *)&pfl->field;
|
||
status = (*dbFastGetConvertRoutine[field_type][dbrType])
|
||
(localAddr.pfield,pbuffer, &localAddr);
|
||
} else {
|
||
status = (*dbFastGetConvertRoutine[field_type][dbrType])
|
||
(paddr->pfield,pbuffer, paddr);
|
||
}
|
||
} else {
|
||
long n;
|
||
|
||
if(nRequest) {
|
||
if(no_elements<(*nRequest)) *nRequest = no_elements;
|
||
n = *nRequest;
|
||
} else {
|
||
n = 1;
|
||
}
|
||
pconvert_routine=dbGetConvertRoutine[field_type][dbrType];
|
||
if(!pconvert_routine) {
|
||
sprintf(message,"dbGet - database request type is %d",
|
||
dbrType);
|
||
recGblDbaddrError(S_db_badDbrtype,paddr,message);
|
||
return(S_db_badDbrtype);
|
||
}
|
||
/* convert database field and place it in the buffer */
|
||
if(n<=0) {
|
||
;/*do nothing*/
|
||
} else if(pfl!=NULL) {
|
||
DBADDR localAddr;
|
||
|
||
localAddr = *paddr; /*Structure copy*/
|
||
localAddr.pfield = (char *)&pfl->field;
|
||
status=(*pconvert_routine)(&localAddr,pbuffer,n,
|
||
no_elements,offset);
|
||
} else {
|
||
status=(*pconvert_routine)(paddr,pbuffer,n,
|
||
no_elements,offset);
|
||
}
|
||
}
|
||
return(status);
|
||
}
|
||
|
||
devSup* epicsShareAPI dbDTYPtoDevSup(dbRecordType *pdbRecordType, int dtyp) {
|
||
return (devSup *)ellNth(&pdbRecordType->devList, dtyp+1);
|
||
}
|
||
|
||
devSup* epicsShareAPI dbDSETtoDevSup(dbRecordType *prdes, struct dset *pdset) {
|
||
devSup *pdevSup = (devSup *)ellFirst(&prdes->devList);
|
||
while (pdevSup) {
|
||
if (pdset == pdevSup->pdset) return pdevSup;
|
||
pdevSup = (devSup *)ellNext(&pdevSup->node);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static long dbPutFieldLink(
|
||
DBADDR *paddr,short dbrType,const void *pbuffer,long nRequest)
|
||
{
|
||
long status = 0;
|
||
long special=paddr->special;
|
||
dbCommon *precord = (dbCommon *)(paddr->precord);
|
||
DBLINK *plink = (DBLINK *)paddr->pfield;
|
||
const char *pstring = (const char *)pbuffer;
|
||
DBENTRY dbEntry;
|
||
dbFldDes *pfldDes = (dbFldDes *)paddr->pfldDes;
|
||
DBADDR dbaddr;
|
||
devSup *pdevSup = NULL;
|
||
struct dset *new_dset = NULL;
|
||
struct dsxt *new_dsxt = NULL;
|
||
int inpOut;
|
||
short scan;
|
||
|
||
if ((dbrType!=DBR_STRING) && (dbrType!=DBR_CHAR) && (dbrType!=DBR_UCHAR))
|
||
return S_db_badDbrtype;
|
||
|
||
if (((dbrType==DBR_CHAR) || (dbrType==DBR_UCHAR)) &&
|
||
(pstring[nRequest] != '\0'))
|
||
return S_db_badField;
|
||
|
||
dbInitEntry(pdbbase,&dbEntry);
|
||
status=dbFindRecord(&dbEntry,precord->name);
|
||
if (!status) status=dbFindField(&dbEntry,pfldDes->name);
|
||
if (status) return status;
|
||
|
||
inpOut = !(strcmp(pfldDes->name,"INP") && strcmp(pfldDes->name,"OUT"));
|
||
|
||
dbLockSetGblLock();
|
||
dbLockSetRecordLock(precord);
|
||
|
||
if (inpOut) {
|
||
pdevSup = dbDTYPtoDevSup(precord->rdes, precord->dtyp);
|
||
if (pdevSup == NULL) {
|
||
/* This record type has no registered device support, but does have
|
||
* an INP or OUT field which we're currently writing to. We handle
|
||
* this INP/OUT field just like any other link field.
|
||
*/
|
||
inpOut = 0;
|
||
} else {
|
||
new_dset = pdevSup->pdset;
|
||
new_dsxt = pdevSup->pdsxt;
|
||
if (new_dset == NULL ||
|
||
new_dsxt == NULL ||
|
||
new_dsxt->add_record == NULL ||
|
||
(precord->dset &&
|
||
((pdevSup = dbDSETtoDevSup(precord->rdes, precord->dset)) == NULL ||
|
||
pdevSup->pdsxt == NULL ||
|
||
pdevSup->pdsxt->del_record == NULL))) {
|
||
status = S_db_noSupport;
|
||
goto unlock;
|
||
}
|
||
}
|
||
}
|
||
|
||
scan = precord->scan;
|
||
if (inpOut && (scan==SCAN_IO_EVENT)) {
|
||
scanDelete(precord);
|
||
precord->scan = SCAN_PASSIVE;
|
||
}
|
||
|
||
switch (plink->type) { /* Old link type */
|
||
case DB_LINK:
|
||
free(plink->value.pv_link.pvt);
|
||
plink->value.pv_link.pvt = 0;
|
||
plink->type = PV_LINK;
|
||
plink->value.pv_link.getCvt = 0;
|
||
plink->value.pv_link.pvlMask = 0;
|
||
plink->value.pv_link.lastGetdbrType = 0;
|
||
dbLockSetSplit(precord);
|
||
break;
|
||
|
||
case CA_LINK:
|
||
dbCaRemoveLink(plink);
|
||
plink->type = PV_LINK;
|
||
plink->value.pv_link.getCvt = 0;
|
||
plink->value.pv_link.pvlMask = 0;
|
||
plink->value.pv_link.lastGetdbrType = 0;
|
||
break;
|
||
|
||
case CONSTANT:
|
||
break; /* do nothing */
|
||
|
||
case PV_LINK:
|
||
case MACRO_LINK:
|
||
break; /* should never get here */
|
||
|
||
default: /* Hardware address */
|
||
if (!inpOut)
|
||
status = S_db_badHWaddr;
|
||
else
|
||
if (precord->dset)
|
||
status = pdevSup->pdsxt->del_record(precord);
|
||
if (status) goto restoreScan;
|
||
break;
|
||
}
|
||
|
||
if (special) status = dbPutSpecial(paddr,0);
|
||
if (!status) status = dbPutString(&dbEntry,pstring);
|
||
|
||
if (inpOut) {
|
||
precord->dset = new_dset;
|
||
precord->dpvt = NULL;
|
||
precord->pact = FALSE;
|
||
}
|
||
|
||
if (!status && special) status = dbPutSpecial(paddr,1);
|
||
if (status) {
|
||
if (inpOut) {
|
||
precord->dset = NULL;
|
||
precord->pact = TRUE;
|
||
}
|
||
goto postScanEvent;
|
||
}
|
||
|
||
switch (plink->type) { /* New link type */
|
||
case PV_LINK:
|
||
if (plink==&precord->tsel) recGblTSELwasModified(plink);
|
||
if (!(plink->value.pv_link.pvlMask & (pvlOptCA|pvlOptCP|pvlOptCPP)) &&
|
||
(dbNameToAddr(plink->value.pv_link.pvname,&dbaddr)==0)) {
|
||
/* It's a DB link */
|
||
DBADDR *pdbAddr;
|
||
|
||
plink->type = DB_LINK;
|
||
pdbAddr = dbCalloc(1,sizeof(struct dbAddr));
|
||
*pdbAddr = dbaddr; /* NB: structure copy */;
|
||
plink->value.pv_link.precord = precord;
|
||
plink->value.pv_link.pvt = pdbAddr;
|
||
dbLockSetRecordLock(pdbAddr->precord);
|
||
dbLockSetMerge(precord,pdbAddr->precord);
|
||
} else { /* Make it a CA link */
|
||
char *pperiod;
|
||
|
||
plink->type = CA_LINK;
|
||
plink->value.pv_link.precord = precord;
|
||
if (pfldDes->field_type==DBF_INLINK) {
|
||
plink->value.pv_link.pvlMask |= pvlOptInpNative;
|
||
}
|
||
dbCaAddLink(plink);
|
||
if (pfldDes->field_type==DBF_FWDLINK) {
|
||
pperiod = strrchr(plink->value.pv_link.pvname,'.');
|
||
if (pperiod && strstr(pperiod,"PROC"))
|
||
plink->value.pv_link.pvlMask |= pvlOptFWD;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case CONSTANT:
|
||
break;
|
||
|
||
case DB_LINK:
|
||
case CA_LINK:
|
||
case MACRO_LINK:
|
||
break; /* should never get here */
|
||
|
||
default: /* Hardware address */
|
||
if (!inpOut)
|
||
status = S_db_badHWaddr;
|
||
else
|
||
status = new_dsxt->add_record(precord);
|
||
if (status) {
|
||
precord->dset = NULL;
|
||
precord->pact = TRUE;
|
||
goto postScanEvent;
|
||
}
|
||
break;
|
||
}
|
||
db_post_events(precord,plink,DBE_VALUE|DBE_LOG);
|
||
|
||
restoreScan:
|
||
if (inpOut && (scan==SCAN_IO_EVENT)) { /* undo scanDelete() */
|
||
precord->scan = scan;
|
||
scanAdd(precord);
|
||
}
|
||
postScanEvent:
|
||
if (scan != precord->scan)
|
||
db_post_events(precord, &precord->scan, DBE_VALUE|DBE_LOG);
|
||
unlock:
|
||
dbLockSetGblUnlock();
|
||
dbFinishEntry(&dbEntry);
|
||
return status;
|
||
}
|
||
|
||
long epicsShareAPI dbPutField(
|
||
DBADDR *paddr,short dbrType,const void *pbuffer,long nRequest)
|
||
{
|
||
long status = 0;
|
||
long special=paddr->special;
|
||
dbFldDes *pfldDes=(dbFldDes *)(paddr->pfldDes);
|
||
dbCommon *precord = (dbCommon *)(paddr->precord);
|
||
short dbfType = paddr->field_type;
|
||
|
||
if(special==SPC_ATTRIBUTE)
|
||
return S_db_noMod;
|
||
|
||
/*check for putField disabled*/
|
||
if (precord->disp &&
|
||
(void *)(&precord->disp) != paddr->pfield)
|
||
return(S_db_putDisabled);
|
||
|
||
if(dbfType>=DBF_INLINK && dbfType<=DBF_FWDLINK)
|
||
return dbPutFieldLink(paddr,dbrType,pbuffer,nRequest);
|
||
|
||
dbScanLock(precord);
|
||
status=dbPut(paddr,dbrType,pbuffer,nRequest);
|
||
if(status==0){
|
||
if((paddr->pfield==(void *)&precord->proc)
|
||
||(pfldDes->process_passive && precord->scan==0
|
||
&& dbrType<DBR_PUT_ACKT)) {
|
||
if(precord->pact) {
|
||
if(precord->tpro)
|
||
printf("%s: Active %s\n",
|
||
epicsThreadGetNameSelf(), precord->name);
|
||
precord->rpro = TRUE;
|
||
} else {
|
||
/*indicate that dbPutField called dbProcess*/
|
||
precord->putf = TRUE;
|
||
status=dbProcess(precord);
|
||
}
|
||
}
|
||
}
|
||
dbScanUnlock(precord);
|
||
return(status);
|
||
}
|
||
|
||
static long putAckt(DBADDR *paddr, const unsigned short *pbuffer, long nRequest,
|
||
long no_elements, long offset)
|
||
{
|
||
dbCommon *precord=(dbCommon *)(paddr->precord);
|
||
|
||
if(*pbuffer == precord->ackt) return(0);
|
||
precord->ackt = *pbuffer;
|
||
db_post_events(precord,&precord->ackt,DBE_VALUE|DBE_ALARM);
|
||
if(!precord->ackt && precord->acks>precord->sevr) {
|
||
precord->acks = precord->sevr;
|
||
db_post_events(precord,&precord->acks,DBE_VALUE|DBE_ALARM);
|
||
}
|
||
db_post_events(precord,NULL,DBE_ALARM);
|
||
return(0);
|
||
}
|
||
|
||
static long putAcks(DBADDR *paddr, const unsigned short *pbuffer, long nRequest,
|
||
long no_elements, long offset)
|
||
{
|
||
dbCommon *precord=(dbCommon *)(paddr->precord);
|
||
|
||
if(*pbuffer >= precord->acks) {
|
||
precord->acks = 0;
|
||
db_post_events(precord,NULL,DBE_ALARM);
|
||
db_post_events(precord,&precord->acks,DBE_VALUE|DBE_ALARM);
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbPut(DBADDR *paddr,short dbrType,
|
||
const void *pbuffer,long nRequest)
|
||
{
|
||
long no_elements=paddr->no_elements;
|
||
long dummy;
|
||
long offset;
|
||
struct rset *prset;
|
||
dbCommon *precord=(dbCommon *)(paddr->precord);
|
||
long status=0;
|
||
dbFldDes *pfldDes;
|
||
long special=paddr->special;
|
||
short field_type=paddr->field_type;
|
||
int isValueField;
|
||
char message[80];
|
||
|
||
if(special==SPC_ATTRIBUTE) return(S_db_noMod);
|
||
if(dbrType==DBR_PUT_ACKT && field_type<=DBF_DEVICE) {
|
||
return putAckt(paddr,(const unsigned short*)pbuffer,1l,1l,0l);
|
||
} else if(dbrType==DBR_PUT_ACKS && field_type<=DBF_DEVICE) {
|
||
return putAcks(paddr,(const unsigned short*)pbuffer,1l,1l,0l);
|
||
} else if( INVALID_DB_REQ(dbrType) || (field_type>DBF_DEVICE)) {
|
||
sprintf(message,"dbPut - database request type is %d",dbrType);
|
||
recGblDbaddrError(S_db_badDbrtype,paddr,message);
|
||
return(S_db_badDbrtype);
|
||
}
|
||
|
||
prset=dbGetRset(paddr);
|
||
|
||
/* check for special processing is required */
|
||
if(special) {
|
||
status = dbPutSpecial(paddr,0);
|
||
if(status) return(status);
|
||
}
|
||
if(no_elements<=1) {
|
||
status = (*dbFastPutConvertRoutine[dbrType][field_type])
|
||
(pbuffer,paddr->pfield, paddr);
|
||
} else {
|
||
if(prset && (prset->get_array_info) ) {
|
||
status= (*prset->get_array_info)
|
||
(paddr,&dummy,&offset);
|
||
}
|
||
else offset=0;
|
||
if(no_elements<(nRequest)) nRequest = no_elements;
|
||
status=(*dbPutConvertRoutine[dbrType][field_type])
|
||
(paddr,pbuffer,nRequest,no_elements,offset);
|
||
/* update array info */
|
||
if(prset && (prset->put_array_info) && !status) {
|
||
status= (*prset->put_array_info)
|
||
(paddr,nRequest);
|
||
}
|
||
}
|
||
if(status) return(status);
|
||
|
||
/* check for special processing is required */
|
||
if(special) {
|
||
status = dbPutSpecial(paddr,1);
|
||
if(status) return(status);
|
||
}
|
||
/* propagate events for this field */
|
||
/* if the field is VAL and pvlMask&pvlOptPP is true dont propagate*/
|
||
pfldDes = (dbFldDes *)(paddr->pfldDes);
|
||
isValueField = dbIsValueField(pfldDes);
|
||
if (isValueField) precord->udf=FALSE;
|
||
if(precord->mlis.count &&
|
||
(!isValueField || (!pfldDes->process_passive)))
|
||
db_post_events(precord,paddr->pfield,DBE_VALUE|DBE_LOG);
|
||
|
||
return(status);
|
||
}
|
||
|
||
/* various utility routines */
|
||
long epicsShareAPI dbGetControlLimits(
|
||
const struct link *plink,double *low, double *high)
|
||
{
|
||
struct buffer {
|
||
DBRctrlDouble
|
||
double value;
|
||
} buffer;
|
||
DBADDR *paddr;
|
||
long options = DBR_CTRL_DOUBLE;
|
||
long number_elements = 0;
|
||
long status;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetControlLimits(plink,low,high));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
status = dbGet(paddr,DBR_DOUBLE,&buffer,&options,&number_elements,0);
|
||
if(status) return(status);
|
||
*low = buffer.lower_ctrl_limit;
|
||
*high = buffer.upper_ctrl_limit;
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetGraphicLimits(
|
||
const struct link *plink,double *low, double *high)
|
||
{
|
||
struct buffer {
|
||
DBRgrDouble
|
||
double value;
|
||
} buffer;
|
||
DBADDR *paddr;
|
||
long options = DBR_GR_DOUBLE;
|
||
long number_elements = 0;
|
||
long status;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetGraphicLimits(plink,low,high));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
status = dbGet(paddr,DBR_DOUBLE,&buffer,&options,&number_elements,0);
|
||
if(status) return(status);
|
||
*low = buffer.lower_disp_limit;
|
||
*high = buffer.upper_disp_limit;
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetAlarmLimits(const struct link *plink,
|
||
double *lolo, double *low, double *high, double *hihi)
|
||
{
|
||
struct buffer {
|
||
DBRalDouble
|
||
double value;
|
||
} buffer;
|
||
DBADDR *paddr;
|
||
long options = DBR_AL_DOUBLE;
|
||
long number_elements = 0;
|
||
long status;
|
||
|
||
if(plink->type == CA_LINK)
|
||
return(dbCaGetAlarmLimits(plink,lolo,low,high,hihi));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
status = dbGet(paddr,DBR_DOUBLE,&buffer,&options,&number_elements,0);
|
||
if(status) return(status);
|
||
*lolo = buffer.lower_alarm_limit;
|
||
*low = buffer.lower_warning_limit;
|
||
*high = buffer.upper_warning_limit;
|
||
*hihi = buffer.upper_alarm_limit;
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetPrecision(const struct link *plink,short *precision)
|
||
{
|
||
struct buffer {
|
||
DBRprecision
|
||
double value;
|
||
} buffer;
|
||
DBADDR *paddr;
|
||
long options = DBR_PRECISION;
|
||
long number_elements = 0;
|
||
long status;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetPrecision(plink,precision));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
status = dbGet(paddr,DBR_DOUBLE,&buffer,&options,&number_elements,0);
|
||
if(status) return(status);
|
||
*precision = buffer.precision;
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetUnits(
|
||
const struct link *plink,char *units,int unitsSize)
|
||
{
|
||
struct buffer {
|
||
DBRunits
|
||
double value;
|
||
} buffer;
|
||
DBADDR *paddr;
|
||
long options = DBR_UNITS;
|
||
long number_elements = 0;
|
||
long status;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetUnits(plink,units,unitsSize));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
status = dbGet(paddr,DBR_DOUBLE,&buffer,&options,&number_elements,0);
|
||
if(status) return(status);
|
||
strncpy(units,buffer.units,unitsSize);
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetSevr(const struct link *plink,short *severity)
|
||
{
|
||
DBADDR *paddr;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetSevr(plink,severity));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
*severity = paddr->precord->sevr;
|
||
return(0);
|
||
}
|
||
|
||
long epicsShareAPI dbGetTimeStamp(const struct link *plink,epicsTimeStamp *pstamp)
|
||
{
|
||
DBADDR *paddr;
|
||
|
||
if(plink->type == CA_LINK) return(dbCaGetTimeStamp(plink,pstamp));
|
||
if(plink->type !=DB_LINK) return(S_db_notFound);
|
||
paddr = (DBADDR *)plink->value.pv_link.pvt;
|
||
*pstamp = paddr->precord->time;
|
||
return(0);
|
||
}
|