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pcas/src/dbStatic/dbStaticRun.c
2009-01-21 20:26:52 +00:00

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/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, 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 Versions 3.13.7
* and higher are distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/*dbStaticLibRun.c*/
#include <stddef.h>
#include <stdio.h>
#include <limits.h>
#include <string.h>
#include <math.h>
#include "dbDefs.h"
#include "errMdef.h"
#include "epicsPrint.h"
#include "ellLib.h"
#include "cvtFast.h"
#include "epicsTypes.h"
#include "epicsStdlib.h"
#define epicsExportSharedSymbols
#include "dbBase.h"
#include "dbStaticLib.h"
#include "dbStaticPvt.h"
#include "special.h"
static char hex_digit_to_ascii[16]={'0','1','2','3','4','5','6','7','8','9',
'a','b','c','d','e','f'};
static void ulongToHexString(epicsUInt32 source,char *pdest)
{
epicsUInt32 val,temp;
char digit[10];
int i,j;
if(source==0) {
strcpy(pdest,"0x0");
return;
}
*pdest++ = '0'; *pdest++ = 'x';
val = source;
for(i=0; val!=0; i++) {
temp = val/16;
digit[i] = hex_digit_to_ascii[val - temp*16];
val = temp;
}
for(j=i-1; j>=0; j--) {
*pdest++ = digit[j];
}
*pdest = 0;
return;
}
static double delta[2]={1e-6,1e-15};
static int precision[2]={6,14};
static void realToString(double value,char *preturn,int isdouble)
{
double absvalue;
int logval,prec,end;
char tstr[30];
char *ptstr=&tstr[0];
int round;
int ise=FALSE;
char *loce=NULL;
if(value==0.0) {strcpy(preturn,"0"); return;};
absvalue = (value<0.0 ? -value: value);
if(absvalue<(double)INT_MAX) {
epicsInt32 intval;
double diff;
intval=value;
diff = value - intval;
if(diff<0.0) diff =-diff;
if(diff < absvalue*delta[isdouble]) {
cvtLongToString(intval,preturn);
return;
}
}
/*Now starts the hard cases*/
if(value<0.0) {*preturn++ = '-'; value = -value;}
logval = (int)log10(value);
if(logval>6 || logval<-2 ) {
int nout;
ise=TRUE;
prec = precision[isdouble];
nout = sprintf(ptstr,"%.*e",prec,value);
loce = strchr(ptstr,'e');
if(!loce) {
ptstr[nout] = 0;
strcpy(preturn,ptstr);
return;
}
*loce++ = 0;
} else {
prec = precision[isdouble]-logval;
if(prec<0)prec=0;
sprintf(ptstr,"%.*f",prec,value);
}
if(prec>0) {
end = strlen(ptstr) -1;
round=FALSE;
while(TRUE) {
if(end<=0)break;
if(tstr[end]=='.'){end--; break;}
if(tstr[end]=='0'){end--; continue;}
if(!round && end<precision[isdouble]) break;
if(!round && tstr[end]<'8') break;
if(tstr[end-1]=='.') {
if(round)end = end-2;
break;
}
if(tstr[end-1]!='9') break;
round=TRUE;
end--;
}
tstr[end+1]=0;
while (round) {
if(tstr[end]<'9') {tstr[end]++; break;}
if(end==0) { *preturn++='1'; tstr[end]='0'; break;}
tstr[end--]='0';
}
}
strcpy(preturn,&tstr[0]);
if(ise) {
if(!(strchr(preturn,'.'))) strcat(preturn,".0");
strcat(preturn,"e");
strcat(preturn,loce);
}
return;
}
static void floatToString(float value,char *preturn)
{
realToString((double)value,preturn,0);
return;
}
static void doubleToString(double value,char *preturn)
{
realToString(value,preturn,1);
return;
}
long dbAllocRecord(DBENTRY *pdbentry,const char *precordName)
{
dbRecordType *pdbRecordType = pdbentry->precordType;
dbRecordNode *precnode = pdbentry->precnode;
dbFldDes *pflddes;
int i;
char *precord;
char *pfield;
if(!pdbRecordType) return(S_dbLib_recordTypeNotFound);
if(!precnode) return(S_dbLib_recNotFound);
if(pdbRecordType->rec_size == 0) {
printf("\t*** Did you run x_RegisterRecordDeviceDriver(pdbbase) yet? ***\n");
epicsPrintf("dbAllocRecord(%s) with %s rec_size = 0\n",
precordName, pdbRecordType->name);
return(S_dbLib_noRecSup);
}
precnode->precord = dbCalloc(1,pdbRecordType->rec_size);
precord = (char *)precnode->precord;
pflddes = pdbRecordType->papFldDes[0];
if(!pflddes) {
epicsPrintf("dbAllocRecord pflddes for NAME not found\n");
return(S_dbLib_flddesNotFound);
}
if(strlen(precordName)>=pflddes->size) {
epicsPrintf("dbAllocRecord: NAME(%s) too long\n",precordName);
return(S_dbLib_nameLength);
}
pfield = precord + pflddes->offset;
strcpy(pfield,precordName);
for(i=1; i<pdbRecordType->no_fields; i++) {
pflddes = pdbRecordType->papFldDes[i];
if(!pflddes) continue;
pfield = precord + pflddes->offset;
pdbentry->pfield = (void *)pfield;
pdbentry->pflddes = pflddes;
pdbentry->indfield = i;
switch(pflddes->field_type) {
case DBF_STRING:
if(pflddes->initial) {
if(strlen(pflddes->initial) >= pflddes->size) {
epicsPrintf("initial size > size for %s.%s\n",
pdbRecordType->name,pflddes->name);
} else {
strcpy(pfield,pflddes->initial);
}
}
break;
case DBF_CHAR:
case DBF_UCHAR:
case DBF_SHORT:
case DBF_USHORT:
case DBF_LONG:
case DBF_ULONG:
case DBF_FLOAT:
case DBF_DOUBLE:
case DBF_ENUM:
case DBF_MENU:
if(pflddes->initial) {
long status;
status = dbPutStringNum(pdbentry,pflddes->initial);
if(status)
epicsPrintf("Error initializing %s.%s initial %s\n",
pdbRecordType->name,pflddes->name,pflddes->initial);
}
break;
case DBF_DEVICE:
if(!pflddes->ftPvt) dbGetDeviceMenu(pdbentry);
break;
case DBF_INLINK:
case DBF_OUTLINK:
case DBF_FWDLINK: {
DBLINK *plink = (DBLINK *)pfield;
plink->type = CONSTANT;
if(pflddes->initial) {
plink->value.constantStr =
dbCalloc(strlen(pflddes->initial)+1,sizeof(char));
strcpy(plink->value.constantStr,pflddes->initial);
}
}
break;
case DBF_NOACCESS:
break;
default:
epicsPrintf("dbAllocRecord: Illegal field type\n");
}
}
return(0);
}
long dbFreeRecord(DBENTRY *pdbentry)
{
dbRecordType *pdbRecordType = pdbentry->precordType;
dbRecordNode *precnode = pdbentry->precnode;
if(!pdbRecordType) return(S_dbLib_recordTypeNotFound);
if(!precnode) return(S_dbLib_recNotFound);
if(!precnode->precord) return(S_dbLib_recNotFound);
free(precnode->precord);
precnode->precord = NULL;
return(0);
}
long dbGetFieldAddress(DBENTRY *pdbentry)
{
dbRecordType *pdbRecordType = pdbentry->precordType;
dbRecordNode *precnode = pdbentry->precnode;
dbFldDes *pflddes = pdbentry->pflddes;
if(!pdbRecordType) return(S_dbLib_recordTypeNotFound);
if(!precnode) return(S_dbLib_recNotFound);
if(!pflddes) return(S_dbLib_flddesNotFound);
if(!precnode->precord) return(0);
pdbentry->pfield = ((char *)precnode->precord) + pflddes->offset;
return(0);
}
char *dbRecordName(DBENTRY *pdbentry)
{
dbRecordType *pdbRecordType = pdbentry->precordType;
dbRecordNode *precnode = pdbentry->precnode;
dbFldDes *pflddes;
char *precord;
if(!pdbRecordType) return(0);
if(!precnode) return(0);
if(!precnode->precord) return(0);
precord = (char *)precnode->precord;
pflddes = pdbRecordType->papFldDes[0];
if(!pflddes) return(NULL);
return(precord + pflddes->offset);
}
int dbIsMacroOk(DBENTRY *pdbentry) { return(FALSE); }
epicsShareFunc int epicsShareAPI dbIsDefaultValue(DBENTRY *pdbentry)
{
dbFldDes *pflddes = pdbentry->pflddes;
void *pfield = pdbentry->pfield;
if(!pflddes) return(FALSE);
if(!pfield) return(FALSE);
switch (pflddes->field_type) {
case (DBF_STRING) : {
char *p = (char *)pfield;
if(!pflddes->initial) return((strlen(p)==0) ? TRUE : FALSE);
return((strcmp(pflddes->initial,p)==0) ? TRUE : FALSE);
}
case DBF_CHAR: {
char field = *(char *)pfield;
long ltemp;
if(pflddes->initial) {
ltemp = strtol(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_UCHAR: {
unsigned char field = *(unsigned char *)pfield;
unsigned long ltemp;
if(pflddes->initial) {
ltemp = strtoul(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_SHORT: {
short field = *(short *)pfield;
long ltemp;
if(pflddes->initial) {
ltemp = strtol(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_USHORT: {
unsigned short field = *(unsigned short *)pfield;
unsigned long ltemp;
if(pflddes->initial) {
ltemp = strtoul(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_LONG: {
long field = *(long *)pfield;
long ltemp;
if(pflddes->initial) {
ltemp = strtol(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_ULONG: {
unsigned long field = *(unsigned long *)pfield;
unsigned long ltemp;
if(pflddes->initial) {
ltemp = strtoul(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_FLOAT: {
float field = *(float *)pfield;
double dtemp;
if(pflddes->initial) {
dtemp = epicsStrtod(pflddes->initial,NULL);
return((field==dtemp));
}
return((field==0.0));
}
case DBF_DOUBLE: {
double field = *(double *)pfield;
double dtemp;
if(pflddes->initial) {
dtemp = epicsStrtod(pflddes->initial,NULL);
return((field==dtemp));
}
return((field==0.0));
}
case DBF_ENUM: {
unsigned short field = *(unsigned short *)pfield;
unsigned long ltemp;
if(pflddes->initial) {
ltemp = strtoul(pflddes->initial,NULL,0);
return((field==ltemp));
}
return((field==0));
}
case DBF_MENU: {
unsigned short field = *(unsigned short *)pfield;
long value;
char *endp;
if(pflddes->initial) {
value = dbGetMenuIndexFromString(pdbentry,pflddes->initial);
if(value==-1) {
value = strtol(pflddes->initial,&endp,0);
if(*endp!='\0') return(FALSE);
}
} else {
value = 0;
}
if((unsigned short)value == field) return(TRUE);
return(FALSE);
}
case DBF_DEVICE: {
dbRecordType *precordType = pdbentry->precordType;
if(!precordType) {
epicsPrintf("dbIsDefaultValue: pdbRecordType is NULL??\n");
return(FALSE);
}
if(ellCount(&precordType->devList)==0) return(TRUE);
return(FALSE);
}
case DBF_INLINK:
case DBF_OUTLINK:
case DBF_FWDLINK: {
struct link *plink = (struct link *)pfield;
if(!plink) return(FALSE);
if(plink->type!=CONSTANT) return(FALSE);
if(plink->value.constantStr == 0) return(TRUE);
if(!pflddes->initial) return(FALSE);
if(strcmp(plink->value.constantStr,pflddes->initial)==0)
return(TRUE);
return(FALSE);
}
default:
return(TRUE);
}
return(FALSE);
}
char *dbGetStringNum(DBENTRY *pdbentry)
{
dbFldDes *pflddes = pdbentry->pflddes;
void *pfield = pdbentry->pfield;
char *message;
unsigned char cvttype;
if(!pdbentry->message) pdbentry->message = dbCalloc(1,50);
message = pdbentry->message;
cvttype = pflddes->base;
switch (pflddes->field_type) {
case DBF_CHAR:
if(cvttype==CT_DECIMAL)
cvtCharToString(*(char*)pfield, message);
else
ulongToHexString((epicsUInt32)(*(char*)pfield),message);
break;
case DBF_UCHAR:
if(cvttype==CT_DECIMAL)
cvtUcharToString(*(unsigned char*)pfield, message);
else
ulongToHexString((epicsUInt32)(*(unsigned char*)pfield),message);
break;
case DBF_SHORT:
if(cvttype==CT_DECIMAL)
cvtShortToString(*(short*)pfield, message);
else
ulongToHexString((epicsUInt32)(*(short*)pfield),message);
break;
case DBF_USHORT:
case DBF_ENUM:
if(cvttype==CT_DECIMAL)
cvtUshortToString(*(unsigned short*)pfield, message);
else
ulongToHexString((epicsUInt32)(*(unsigned short*)pfield),message);
break;
case DBF_LONG:
if(cvttype==CT_DECIMAL)
cvtLongToString(*(epicsInt32*)pfield, message);
else
ulongToHexString((epicsUInt32)(*(epicsInt32*)pfield), message);
break;
case DBF_ULONG:
if(cvttype==CT_DECIMAL)
cvtUlongToString(*(epicsUInt32 *)pfield, message);
else
ulongToHexString(*(epicsUInt32*)pfield, message);
break;
case DBF_FLOAT:
floatToString(*(float *)pfield,message);
break;
case DBF_DOUBLE:
doubleToString(*(double *)pfield,message);
break;
case DBF_MENU: {
dbMenu *pdbMenu = (dbMenu *)pflddes->ftPvt;
short choice_ind;
char *pchoice;
if(!pfield) {strcpy(message,"Field not found"); return(message);}
choice_ind = *((short *) pdbentry->pfield);
if(!pdbMenu || choice_ind<0 || choice_ind>=pdbMenu->nChoice)
return(NULL);
pchoice = pdbMenu->papChoiceValue[choice_ind];
strcpy(message, pchoice);
}
break;
case DBF_DEVICE: {
dbDeviceMenu *pdbDeviceMenu;
char *pchoice;
short choice_ind;
if(!pfield) {strcpy(message,"Field not found"); return(message);}
pdbDeviceMenu = dbGetDeviceMenu(pdbentry);
if(!pdbDeviceMenu) return(NULL);
choice_ind = *((short *) pdbentry->pfield);
if(choice_ind<0 || choice_ind>=pdbDeviceMenu->nChoice)
return(NULL);
pchoice = pdbDeviceMenu->papChoice[choice_ind];
strcpy(message, pchoice);
}
break;
default:
return(NULL);
}
return (message);
}
long dbPutStringNum(DBENTRY *pdbentry,const char *pstring)
{
dbFldDes *pflddes = pdbentry->pflddes;
void *pfield = pdbentry->pfield;
long status=0;
if(!pfield) return(S_dbLib_fieldNotFound);
switch (pflddes->field_type) {
case DBF_CHAR :
case DBF_SHORT :
case DBF_LONG:{
long value;
char *endp;
value = strtol(pstring,&endp,0);
if(*endp!=0) status = S_dbLib_badField;
switch (pflddes->field_type) {
case DBF_CHAR : *(char *)pfield = value; break;
case DBF_SHORT : *(short *)pfield = value; break;
case DBF_LONG : *(epicsInt32 *)pfield = value; break;
default: epicsPrintf("Logic error in dbPutStringNum\n");
}
}
break;
case DBF_UCHAR:
case DBF_USHORT:
case DBF_ULONG:
case DBF_ENUM:{
unsigned long value;
char *endp;
value = strtoul(pstring,&endp,0);
if(*endp!=0) status = S_dbLib_badField;
switch (pflddes->field_type) {
case DBF_UCHAR : *(unsigned char *)pfield = value; break;
case DBF_USHORT:
case DBF_ENUM: *(unsigned short *)pfield=value; break;
case DBF_ULONG : *(epicsUInt32 *)pfield = value; break;
default: epicsPrintf("Logic error in dbPutStringNum\n");
}
}
break;
case DBF_FLOAT:
case DBF_DOUBLE: {
double value;
char *endp;
value = epicsStrtod(pstring,&endp);
if(*endp!=0) status = S_dbLib_badField;
if(pflddes->field_type==DBF_FLOAT)
*(float *)pfield = value;
else
*(double *)pfield = value;
}
break;
case DBF_MENU:
case DBF_DEVICE: {/*Must allow value that is choice or index*/
unsigned short *field= (unsigned short*)pfield;
int ind;
long value;
char *endp;
ind = dbGetMenuIndexFromString(pdbentry,pstring);
if(ind==-1) {
value = strtol(pstring,&endp,0);
if(*endp!='\0') return(S_dbLib_badField);
ind = value;
/*Check that ind is withing range*/
if(!dbGetMenuStringFromIndex(pdbentry,ind))
return(S_dbLib_badField);
}
*field = (unsigned short)ind;
}
return (0);
default:
return (S_dbLib_badField);
}
return(status);
}
epicsShareFunc int epicsShareAPI dbGetMenuIndex(DBENTRY *pdbentry)
{
dbFldDes *pflddes = pdbentry->pflddes;
void *pfield = pdbentry->pfield;
if(!pflddes) return(-1);
if(!pfield) return(-1);
switch (pflddes->field_type) {
case (DBF_MENU):
case (DBF_DEVICE):
return((int)(*(unsigned short *)pfield));
default:
errPrintf(-1,__FILE__, __LINE__,"Logic Error\n");
}
return(-1);
}
epicsShareFunc long epicsShareAPI dbPutMenuIndex(DBENTRY *pdbentry,int index)
{
dbFldDes *pflddes = pdbentry->pflddes;
unsigned short *pfield = pdbentry->pfield;
if(!pflddes) return(S_dbLib_flddesNotFound);
if(!pfield) return(S_dbLib_fieldNotFound);
switch (pflddes->field_type) {
case DBF_MENU: {
dbMenu *pdbMenu = (dbMenu *)pflddes->ftPvt;
if(!pdbMenu) return(S_dbLib_menuNotFound);
if(index<0 || index>=pdbMenu->nChoice) return(S_dbLib_badField);
*pfield = (unsigned short)index;
return(0);
}
case DBF_DEVICE: {
dbDeviceMenu *pdbDeviceMenu;
pdbDeviceMenu = dbGetDeviceMenu(pdbentry);
if(!pdbDeviceMenu) return(S_dbLib_menuNotFound);
if(index<0 || index>=pdbDeviceMenu->nChoice)
return(S_dbLib_badField);
return(dbPutString(pdbentry,pdbDeviceMenu->papChoice[index]));
}
default:
break;
}
return (S_dbLib_badField);
}