RMON_ENTRY_T *ROWAPI_header_ControlEntry (struct variable * vp, oid * name,
size_t * length, int exact,
size_t * var_len,
TABLE_DEFINTION_T * table_ptr, void *entry_ptr, size_t entry_size)
{
long ctrl_index;
RMON_ENTRY_T *hdr = NULL;
if (0 != AGUTIL_advance_index_name (vp, name, length, exact))
{
ag_trace ("cannot advance_index_name");
return NULL;
}
ctrl_index = vp->namelen >= *length ? 0 : name[vp->namelen];
if (exact)
{
if (ctrl_index)
hdr = ROWAPI_find (table_ptr, ctrl_index);
}
else
{
if (ctrl_index)
hdr = ROWAPI_next (table_ptr, ctrl_index);
else
hdr = ROWAPI_first (table_ptr);
if (hdr)
{ /* set new index */
name[vp->namelen] = hdr->ctrl_index;
*length = vp->namelen + 1;
}
}
if (hdr)
memcpy (entry_ptr, hdr->body, entry_size);
return hdr;
}
RMON_ENTRY_T *
ROWDATAAPI_header_DataEntry(struct variable * vp, oid * name,
size_t * length, int exact,
size_t * var_len,
TABLE_DEFINTION_T * table_ptr,
SCROLLER_T * (*extract_scroller) (void *body),
size_t data_size, void *entry_ptr)
{
long ctrl_indx, data_index;
RMON_ENTRY_T *hdr = NULL;
SCROLLER_T *scrlr;
NEXTED_PTR_T *bptr = NULL;
register u_long iii;
if (0 != AGUTIL_advance_index_name(vp, name, length, exact)) {
ag_trace("cannot advance_index_name");
return NULL;
}
ctrl_indx = vp->namelen >= *length ? 0 : name[vp->namelen];
if (ctrl_indx)
data_index =
((int)(vp->namelen + 1) >= (int)*length) ? 0 : name[vp->namelen + 1];
else
data_index = 0;
if (exact) {
if (ctrl_indx && data_index) {
hdr = ROWAPI_find(table_ptr, ctrl_indx);
if (hdr) {
scrlr = extract_scroller(hdr->body);
bptr = scrlr->first_data_ptr;
for (iii = 0; iii < scrlr->data_stored && bptr;
iii++, bptr = bptr->next) {
if ((long)bptr->data_index == data_index)
break;
}
if (!bptr)
hdr = NULL;
}
}
} else {
if (ctrl_indx)
hdr = ROWAPI_find(table_ptr, ctrl_indx);
else
hdr = ROWAPI_first(table_ptr);
if (hdr) {
scrlr = extract_scroller(hdr->body);
/*
* ag_trace ("get next after (%d %d)", (int) ctrl_indx, (int) data_index);
*/
bptr = scrlr->first_data_ptr;
for (iii = 0; iii < scrlr->data_stored && bptr;
iii++, bptr = bptr->next) {
if (bptr->data_index && (long)bptr->data_index > data_index)
break;
}
if (bptr && (long)bptr->data_index <= data_index)
bptr = NULL;
if (!bptr) { /* travel to next row */
/*
* ag_trace ("Dbg: travel to next row");
*/
for (hdr = hdr->next; hdr; hdr = hdr->next) {
if (RMON1_ENTRY_VALID != hdr->status)
continue;
scrlr = extract_scroller(hdr->body);
if (scrlr->data_stored <= 0)
continue;
for (bptr = scrlr->first_data_ptr; bptr;
bptr = bptr->next) {
if (bptr->data_index)
break;
}
if (bptr)
break;
}
}
if (bptr) { /* set new index */
/*
* ag_trace ("Dbg: So (%d %d)", (int) hdr->index, (int) bptr->data_index);
*/
name[vp->namelen] = hdr->ctrl_index;
name[vp->namelen + 1] = bptr->data_index;
*length = vp->namelen + 2;
} else
hdr = NULL;
}
}
if (hdr)
memcpy(entry_ptr, bptr, data_size);
return hdr;
}