RUNTIME: Variable trace now uses limited list and buffer instead of flags in instance tree that was requiring systematical instance tree traversal, and worst size buffer. Forcing and retain still use tree traversal.
#define __Unpack_case_t(TYPENAME) \
case TYPENAME##_ENUM :\
*flags = ((__IEC_##TYPENAME##_t *)varp)->flags;\
forced_value_p = *real_value_p = &((__IEC_##TYPENAME##_t *)varp)->value;\
break;
#define __Unpack_case_p(TYPENAME)\
case TYPENAME##_O_ENUM :\
*flags = __IEC_OUTPUT_FLAG;\
case TYPENAME##_P_ENUM :\
*flags |= ((__IEC_##TYPENAME##_p *)varp)->flags;\
*real_value_p = ((__IEC_##TYPENAME##_p *)varp)->value;\
forced_value_p = &((__IEC_##TYPENAME##_p *)varp)->fvalue;\
break;
#define __Is_a_string(dsc) (dsc->type == STRING_ENUM) ||\
(dsc->type == STRING_P_ENUM) ||\
(dsc->type == STRING_O_ENUM)
static void* UnpackVar(__Unpack_desc_type *dsc, void **real_value_p, char *flags)
{
void *varp = dsc->ptr;
void *forced_value_p = NULL;
*flags = 0;
/* find data to copy*/
switch(dsc->type){
__ANY(__Unpack_case_t)
__ANY(__Unpack_case_p)
default:
break;
}
if (*flags & __IEC_FORCE_FLAG)
return forced_value_p;
return *real_value_p;
}