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pcas/src/ca/convert.c
1991-04-04 11:25:49 +00:00

744 lines
17 KiB
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/*
* C O N V E R T . C
*
* Author: D. Kersteins
*
*
* NOTES:
* 1) converts arrays without subroutine call
* for improved efficiency -joh
*
* 2) These routines only do VAX conversions for now - joh
*
* 3) All routines in this file have an encode argument which
* determines if we are converting from the standard format to
* the local format or vise versa. To date only float and double data
* types must be converted differently depending on the encode
* argument - joh
*
* History
* joh 10-21-90 Moved atomic types here to avoid
* maintenance problems in service.c
* This also provides for a cleaner seperation
* of function.
* joh 10-21-90 Added new DBR_XXXX types for release two
*
*
*/
#include <db_access.h>
#include <net_convert.h>
#ifdef vxWorks
# define memcpy(D,S,N) bcopy(S,D,N)
# define memset(D,V,N) bfill(D,N,V)
#endif
/*
* Routine we will do later
*
*
*
*/
no_cvrt()
{
printf("Sorry, conversion for that type currently not implemented\n");
exit();
}
cvrt_sts_char() {no_cvrt();}
cvrt_sts_long() {no_cvrt();}
cvrt_sts_double() {no_cvrt();}
cvrt_time_string() {no_cvrt();}
cvrt_time_short() {no_cvrt();}
cvrt_time_float() {no_cvrt();}
cvrt_time_enum() {no_cvrt();}
cvrt_time_char() {no_cvrt();}
cvrt_time_long() {no_cvrt();}
cvrt_time_double() {no_cvrt();}
cvrt_gr_char() {no_cvrt();}
cvrt_gr_double() {no_cvrt();}
cvrt_gr_long() {no_cvrt();}
cvrt_gr_string() {no_cvrt();}
cvrt_gr_enum() {no_cvrt();}
cvrt_ctrl_char() {no_cvrt();}
cvrt_ctrl_long() {no_cvrt();}
cvrt_ctrl_string() {no_cvrt();}
cvrt_ctrl_double() {no_cvrt();}
/*
* CVRT_SHORT()
*
*
*
*
*/
cvrt_short(s,d,encode,num)
short *s; /* source */
short *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
for(i=0; i<num; i++){
*d++ = ntohs( *s++ );
}
return 1;
}
/*
* CVRT_CHAR()
*
*
*
*
*/
cvrt_char(s,d,encode,num)
char *s; /* source */
char *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
for(i=0; i<num; i++){
*d++ = *s++;
}
return 1;
}
/*
* CVRT_LONG()
*
*
*
*
*/
cvrt_long(s,d,encode,num)
long *s; /* source */
long *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
for(i=0; i<num; i++){
*d++ = ntohl( *s++ );
}
return 1;
}
/*
* CVRT_ENUM()
*
*
*
*
*/
cvrt_enum(s,d,encode,num)
short *s; /* source */
short *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
for(i=0; i<num; i++){
*d++ = ntohs(*s++);
}
return 1;
}
/*
* CVRT_FLOAT()
*
*
* NOTES:
* placing encode outside the loop results in more
* code but better performance.
*
*/
cvrt_float(s,d,encode,num)
float *s; /* source */
float *d; /* destination */
int encode; /* cvrt VAX to IEEE if T*/
int num; /* number of values */
{
unsigned int i;
for(i=0; i<num; i++){
if(encode){
htonf(s, d);
}
else{
ntohf(s, d);
}
/*
* incrementing these inside the MACRO could be unhealthy
*/
s++;
d++;
}
return 1;
}
/*
* CVRT_DOUBLE()
*
*
*
*
*/
cvrt_double(s,d,encode,num)
double *s; /* source */
double *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
printf("CA: sorry no code for conversions of doubles\n");
printf("CA: setting your variable to nill\n");
for(i=0; i<num; i++){
*d++ = 0.0;
}
return 1;
}
/*
* CVRT_STRING()
*
*
*
*
*/
cvrt_string(s,d,encode,num)
char *s; /* source */
char *d; /* destination */
int encode; /* cvrt VAX to IEEE if T */
int num; /* number of values */
{
unsigned int i;
if(num == 1)
strcpy(d, s);
else
memcpy(d, s, (MAX_STRING_SIZE * num));
return 1;
}
/****************************************************************************
** cvrt_sts_string(s,d)
** struct dbr_sts_string *s pointer to source struct
** struct dbr_sts_string *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** converts fields of struct in VAX format to IEEE format
** or
** converts fields of struct in IEEE format to fields with VAX
** format;
****************************************************************************/
cvrt_sts_string(s,d,encode,num)
struct dbr_sts_string *s; /* source */
struct dbr_sts_string *d; /* destination */
int encode; /* do VAX to IEEE */
int num; /* number of values */
{
/* convert ieee to vax format or vax to ieee */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
if (num == 1) /* if single value */
strcpy(d->value,s->value);
else
memcpy(d->value,s->value,(MAX_STRING_SIZE * num));
return 1;
}
/****************************************************************************
** cvrt_sts_short(s,d)
** struct dbr_sts_int *s pointer to source struct
** struct dbr_sts_int *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** converts fields ofstruct in VAX format to ieee format
** or
** converts fields of struct in IEEE format to fields with VAX
** format
****************************************************************************/
cvrt_sts_short(s,d,encode,num)
struct dbr_sts_int *s; /* source */
struct dbr_sts_int *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
short *sval_ptr,*dval_ptr; /* ptrs to source, destination */
/* convert vax to ieee or ieee to vax format -- same code*/
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
if (num == 1) /* single value */
d->value = ntohs(s->value);
else /* array chan-- multiple pts */
{
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0; i < num; i++){
*dval_ptr = ntohs(*sval_ptr);
sval_ptr++;
dval_ptr++;
}
}
return 1;
}
/****************************************************************************
** cvrt_sts_float(s,d)
** struct dbr_sts_float *s pointer to source struct
** struct dbr_sts_float *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** if encode
** converts struct in VAX format to ieee format
** else
** converts fields of struct in IEEE format to fields with VAX
** format;
****************************************************************************/
cvrt_sts_float(s,d,encode,num)
struct dbr_sts_float *s; /* source */
struct dbr_sts_float *d; /* destination */
int encode; /* it true, vax to ieee */
int num; /* number of values */
{
register i;
float *sval_ptr,*dval_ptr;
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
if(encode) /* vax to ieee convert */
if(num == 1){
htonf(&s->value, &d->value);
}
else
{
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
htonf(sval_ptr,dval_ptr);
sval_ptr++;
dval_ptr++;
}
}
else /* ieee to vax convert */
if(num == 1){
ntohf(&s->value,&d->value);
}
else
{
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
ntohf(sval_ptr,dval_ptr);
dval_ptr++;
sval_ptr++;
}
}
return 1;
}
/****************************************************************************
** cvrt_sts_enum(s,d)
** struct dbr_sts_enum *s pointer to source struct
** struct dbr_sts_enum *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** converts fields of struct in IEEE format to fields with VAX format
** or
** converts fields of struct in VAX format to fields with IEEE format
**
****************************************************************************/
cvrt_sts_enum(s,d,encode,num)
struct dbr_sts_enum *s; /* source */
struct dbr_sts_enum *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
short *dval_ptr,*sval_ptr;
/* convert vax to ieee or ieee to vax --same code */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
if (num == 1)
d->value = ntohs(s->value);
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0; i < num; i++){
*dval_ptr = ntohs(*sval_ptr);
dval_ptr++;
sval_ptr++;
}
}
return 1;
}
/****************************************************************************
** cvrt_gr_short(s,d)
** struct dbr_gr_int *s pointer to source struct
** struct dbr_gr_int *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** converts fields of struct in IEEE format to fields with VAX format
** or
** converts fields of struct in VAX format to fields with IEEE format
**
****************************************************************************/
cvrt_gr_short(s,d,encode,num)
struct dbr_gr_int *s; /* source */
struct dbr_gr_int *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
short *sval_ptr,*dval_ptr;
/* convert ieee to vax or vax to ieee -- same code */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
strcpy(d->units,s->units);
d->upper_disp_limit = ntohs(s->upper_disp_limit);
d->lower_disp_limit = ntohs(s->lower_disp_limit);
d->upper_alarm_limit = ntohs(s->upper_alarm_limit);
d->upper_warning_limit = ntohs(s->upper_warning_limit);
d->lower_alarm_limit = ntohs(s->lower_alarm_limit);
d->lower_warning_limit = ntohs(s->lower_warning_limit);
if (num == 1)
d->value = ntohs(s->value);
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
*dval_ptr = ntohs(*sval_ptr);
dval_ptr++;
sval_ptr++;
}
}
return 1;
}
/****************************************************************************
** cvrt_gr_float(s,d)
** struct dbr_gr_float *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** if encode
** converts struct in VAX format to ieee format
** else
** converts fields of struct in IEEE format to fields with VAX
** format;
****************************************************************************/
cvrt_gr_float(s,d,encode,num)
struct dbr_gr_float *s; /* source */
struct dbr_gr_float *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
float *sval_ptr,*dval_ptr;
/* these are same for vax to ieee or ieee to vax */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
d->precision = ntohs(s->precision);
strcpy(d->units,s->units);
if (encode) /* vax to ieee convert */
{
if (num == 1){
htonf(&s->value, &d->value);
}
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
htonf(sval_ptr,dval_ptr);
dval_ptr++;
sval_ptr++;
}
}
htonf(&s->upper_disp_limit,&d->upper_disp_limit);
htonf(&s->lower_disp_limit, &d->lower_disp_limit);
htonf(&s->upper_alarm_limit, &d->upper_alarm_limit);
htonf(&s->upper_warning_limit, &d->upper_warning_limit);
htonf(&s->lower_alarm_limit, &d->lower_alarm_limit);
htonf(&s->lower_warning_limit, &d->lower_warning_limit);
}
else /* ieee to vax convert */
{
if (num == 1){
ntohf(&s->value, &d->value);
}
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
ntohf(sval_ptr,dval_ptr);
dval_ptr++;
sval_ptr++;
}
}
ntohf(&s->upper_disp_limit,&d->upper_disp_limit);
ntohf(&s->lower_disp_limit, &d->lower_disp_limit);
ntohf(&s->upper_alarm_limit, &d->upper_alarm_limit);
ntohf(&s->upper_warning_limit, &d->upper_warning_limit);
ntohf(&s->lower_alarm_limit, &d->lower_alarm_limit);
ntohf(&s->lower_warning_limit, &d->lower_warning_limit);
}
return 1;
}
/****************************************************************************
** cvrt_ctrl_short(s,d)
** struct dbr_gr_int *s pointer to source struct
** struct dbr_gr_int *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** converts fields of struct in IEEE format to fields with VAX format
** or
** converts fields of struct in VAX format to fields with IEEE format
**
****************************************************************************/
cvrt_ctrl_short(s,d,encode,num)
struct dbr_ctrl_int *s; /* source */
struct dbr_ctrl_int *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
short *sval_ptr,*dval_ptr;
/* vax to ieee or ieee to vax -- same code */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
strcpy(d->units,s->units);
d->upper_disp_limit = ntohs(s->upper_disp_limit);
d->lower_disp_limit = ntohs(s->lower_disp_limit);
d->upper_alarm_limit = ntohs(s->upper_alarm_limit);
d->upper_warning_limit = ntohs(s->upper_warning_limit);
d->lower_alarm_limit = ntohs(s->lower_alarm_limit);
d->lower_warning_limit = ntohs(s->lower_warning_limit);
d->lower_ctrl_limit = ntohs(s->lower_ctrl_limit);
d->upper_ctrl_limit = ntohs(s->upper_ctrl_limit);
if (num == 1)
d->value = ntohs(s->value);
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
*dval_ptr = ntohs(*sval_ptr);
dval_ptr++;
sval_ptr++;
}
}
return 1;
}
/****************************************************************************
** cvrt_ctrl_float(s,d)
** struct dbr_ctrl_float *s pointer to source struct
** struct dbr_ctrl_float *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** if encode
** converts struct in VAX format to ieee format
** else
** converts fields of struct in IEEE format to fields with VAX
** format;
****************************************************************************/
cvrt_ctrl_float(s,d,encode,num)
struct dbr_ctrl_float *s; /* source */
struct dbr_ctrl_float *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
float *sval_ptr,*dval_ptr;
/* these are the same for ieee to vaax or vax to ieee */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
d->precision = ntohs(s->precision);
strcpy(d->units,s->units);
if (encode) /* vax to ieee convert */
{
if (num == 1){
htonf(&s->value, &d->value);
}
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
htonf(sval_ptr,dval_ptr);
dval_ptr++;
sval_ptr++;
}
}
htonf(&s->upper_disp_limit,&d->upper_disp_limit);
htonf(&s->lower_disp_limit, &d->lower_disp_limit);
htonf(&s->upper_alarm_limit, &d->upper_alarm_limit);
htonf(&s->upper_warning_limit, &d->upper_warning_limit);
htonf(&s->lower_alarm_limit, &d->lower_alarm_limit);
htonf(&s->lower_warning_limit, &d->lower_warning_limit);
htonf(&s->lower_ctrl_limit, &d->lower_ctrl_limit);
htonf(&s->upper_ctrl_limit, &d->upper_ctrl_limit);
}
else /* ieee to vax convert */
{
if (num == 1){
ntohf(&s->value, &d->value);
}
else {
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0;i < num; i++){
ntohf(sval_ptr,dval_ptr);
dval_ptr++;
sval_ptr++;
}
}
ntohf(&s->lower_disp_limit, &d->lower_disp_limit);
ntohf(&s->upper_alarm_limit, &d->upper_alarm_limit);
ntohf(&s->upper_warning_limit, &d->upper_warning_limit);
ntohf(&s->lower_alarm_limit, &d->lower_alarm_limit);
ntohf(&s->lower_warning_limit, &d->lower_warning_limit);
ntohf(&s->lower_ctrl_limit, &d->lower_ctrl_limit);
ntohf(&s->upper_ctrl_limit, &d->upper_ctrl_limit);
}
return 1;
}
/****************************************************************************
** cvrt_ctrl_enum(s,d)
** struct dbr_ctrl_enum *s pointer to source struct
** struct dbr_ctrl_enum *d pointer to destination struct
** int encode; boolean, if true vax to ieee
** else ieee to vax
**
** if encode
** converts struct in VAX format to ieee format
** else
** converts fields of struct in IEEE format to fields with VAX
** format;
****************************************************************************/
cvrt_ctrl_enum(s,d,encode,num)
struct dbr_ctrl_enum *s; /* source */
struct dbr_ctrl_enum *d; /* destination */
int encode; /* if true, vax to ieee */
int num; /* number of values */
{
register i;
short *sval_ptr,*dval_ptr;
/* vax to ieee or ieee to vax -- same code */
d->status = ntohs(s->status);
d->severity = ntohs(s->severity);
d->no_str = ntohs(s->no_str);
memcpy(d->strs,s->strs,sizeof(s->strs));
if (num == 1) /* single value */
d->value = ntohs(s->value);
else /* array chan-- multiple pts */
{
sval_ptr = &(s->value);
dval_ptr = &(d->value);
for (i = 0; i < num; i++){
*dval_ptr = ntohs(*sval_ptr);
dval_ptr++;
sval_ptr++;
}
}
return 1;
}