all: rework how arrays work

Instead of having a null pointer, use a dummy array which just
says the array is empty. This helps in multiple places of the code
which would otherwise need explicitly need to check first if the
array exists. This has been cause of multiple seg.faults in the
past as the array check is easily omitted.

This also removes (or fixes) all existing checks accordingly.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/hash.c b/src/hash.c
index c85a29d..1657bcc 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -16,14 +16,15 @@ void apk_hash_init(struct apk_hash *h, const struct apk_hash_ops *ops,
 		   int num_buckets)
 {
 	h->ops = ops;
-	h->buckets = apk_hash_array_resize(NULL, num_buckets);
+	apk_hash_array_init(&h->buckets);
+	apk_hash_array_resize(&h->buckets, num_buckets);
 	h->num_items = 0;
 }
 
 void apk_hash_free(struct apk_hash *h)
 {
 	apk_hash_foreach(h, (apk_hash_enumerator_f) h->ops->delete_item, NULL);
-	free(h->buckets);
+	apk_hash_array_free(&h->buckets);
 }
 
 int apk_hash_foreach(struct apk_hash *h, apk_hash_enumerator_f e, void *ctx)