struct ddb_view *ddb_view_cons_finalize(const struct ddb_view_cons *cons,
struct ddb *db)
{
uint32_t n = ddb_map_num_items(cons->map);
struct ddb_cursor *cursor = ddb_unique_values(db);
struct ddb_view *view = malloc(4 + n * sizeof(valueid_t));
const struct ddb_entry *value;
valueid_t id = 0;
int err = 0;
if (!(cursor && view))
goto err;
view->num_values = 0;
while (n && (value = ddb_next(cursor, &err))){
++id;
if (ddb_map_lookup_str(cons->map, value)){
view->values[view->num_values++] = id;
--n;
}
}
if (!err){
ddb_free_cursor(cursor);
return view;
}
err:
ddb_view_free(view);
ddb_free_cursor(cursor);
return NULL;
}
static PyObject *
DiscoDB_unique_values(DiscoDB *self)
{
struct ddb_cursor *cursor = ddb_unique_values(self->discodb);
if (cursor == NULL)
if (ddb_has_error(self->discodb))
return NULL;
return DiscoDBIter_new(&DiscoDBIterEntryType, self, cursor);
}
int main(int argc, char **argv)
{
if (argc < 3)
usage();
struct ddb *db = open_discodb(argv[1]);
if (!strcmp(argv[2], "-info"))
print_info(db);
else if (!strcmp(argv[2], "-keys"))
print_cursor(db, ddb_keys(db));
else if (!strcmp(argv[2], "-values"))
print_cursor(db, ddb_values(db));
else if (!strcmp(argv[2], "-uvalues"))
print_cursor(db, ddb_unique_values(db));
else if (!strcmp(argv[2], "-item")){
if (argc < 4){
fprintf(stderr, "Specify query\n");
exit(1);
}
struct ddb_entry e;
e.data = argv[3];
e.length = strlen(argv[3]);
print_cursor(db, ddb_getitem(db, &e));
}else if (!strcmp(argv[2], "-cnf")){
if (argc < 4){
fprintf(stderr, "Specify query\n");
exit(1);
}
int num_q = 0;
struct ddb_query_clause *q = parse_cnf(&argv[3], argc - 3, &num_q);
print_cursor(db, ddb_query(db, q, num_q));
free(q[0].terms);
free(q);
}else
usage();
ddb_free(db);
return 0;
}
