as-list: Grow faster to avoid too many re-allocations

When we add a large number of ASes to the list, we will constantly
re-allocate the whole list because we are only growing it by 64 entries
at a time.

This patch changes that we will double the list in size every time we
run out of space and we will start with 1024 elements.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/as-list.c

@@ -31,7 +31,11 @@ struct loc_as_list {
 	size_t size;
 };
 
-static int loc_as_list_grow(struct loc_as_list* list, size_t size) {
+static int loc_as_list_grow(struct loc_as_list* list) {
+	size_t size = list->elements_size * 2;
+	if (size < 1024)
+		size = 1024;
+
 	DEBUG(list->ctx, "Growing AS list %p by %zu to %zu\n",
 		list, size, list->elements_size + size);
 
@@ -124,7 +128,7 @@ LOC_EXPORT int loc_as_list_append(
 
 	// Check if we have space left
 	if (list->size >= list->elements_size) {
-		int r = loc_as_list_grow(list, 64);
+		int r = loc_as_list_grow(list);
 		if (r)
 			return r;
 	}