static void
do_varsz(TdbHdr *dbh)
{
int i;
TestUrl *u;
/* Store records. */
for (i = 0, u = urls; i < DATA_N; ++u, ++i) {
unsigned long k = tdb_hash_calc(u->data, u->len);
size_t copied, to_copy = u->len;
TdbVRec *rec;
print_bin_url(u);
rec = (TdbVRec *)tdb_htrie_insert(dbh, k, u->data, &to_copy);
assert((u->len && rec) || (!u->len && !rec));
copied = to_copy;
while (copied != u->len) {
char *p;
rec = tdb_htrie_extend_rec(dbh, rec, u->len - copied);
assert(rec);
p = (char *)(rec + 1);
memcpy(p, u->data + copied, rec->len);
copied += rec->len;
}
}
lookup_varsz_records(dbh);
}
/**
* Check available room in @trec and allocate new record if it's not enough.
* Chop tail of @trec if we allocated more space, but can't use the tail
* w/o data fragmentation.
*/
void *
tdb_entry_get_room(TDB *db, TdbVRec **r, char *curr_ptr, size_t tail_len,
size_t tot_size)
{
if (likely((*r)->data + (*r)->len - curr_ptr >= tail_len))
return curr_ptr;
(*r)->len -= curr_ptr - (*r)->data;
*r = tdb_htrie_extend_rec(db->hdr, *r, tot_size);
return *r ? (*r)->data : NULL;
}
/**
* @return pointer to free area of size at least @size bytes or allocate
* a new record and link it with the current one.
*
* TODO update @size to actually allocated space.
*/
TdbVRec *
tdb_entry_add(TDB *db, TdbVRec *r, size_t size)
{
return tdb_htrie_extend_rec(db->hdr, r, size);
}
