pack-bitmap[-write]: use `object_array_clear()`, don't leak

Instead of setting the fields of rev->pending to 0/NULL, thereby leaking memory, call `object_array_clear(&rev->pending)`. In pack-bitmap.c, we make copies of those fields as `pending_nr` and `pending_e`. We never update the aliases and the original fields never change, so the aliases are not really needed and just make it harder than necessary to understand the code. While we're here, remove the aliases to make the code easier to follow. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Martin Ågren committed Sep 23, 2017 at 01:34 UTC 4d01a7fa65c50e817a935396432e199b7a565f53
2 files changed +4 -10
pack-bitmap-write.c
+1 -3
@@ -297,9 +297,7 @@ void bitmap_writer_build(struct packing_data *to_pack)
297
298 traverse_commit_list(&revs, show_commit, show_object, base);
299
300 - revs.pending.nr = 0;
301 - revs.pending.alloc = 0;
302 - revs.pending.objects = NULL;
300 + object_array_clear(&revs.pending);
301
302 stored->bitmap = bitmap_to_ewah(base);
303 need_reset = 0;
pack-bitmap.c
+3 -7
@@ -653,8 +653,6 @@ static int in_bitmapped_pack(struct object_list *roots)
653 int prepare_bitmap_walk(struct rev_info *revs)
654 {
655 unsigned int i;
656 - unsigned int pending_nr = revs->pending.nr;
657 - struct object_array_entry *pending_e = revs->pending.objects;
656
657 struct object_list *wants = NULL;
658 struct object_list *haves = NULL;
@@ -669,8 +667,8 @@ int prepare_bitmap_walk(struct rev_info *revs)
667 return -1;
668 }
669
672 - for (i = 0; i < pending_nr; ++i) {
673 - struct object *object = pending_e[i].item;
670 + for (i = 0; i < revs->pending.nr; ++i) {
671 + struct object *object = revs->pending.objects[i].item;
672
673 if (object->type == OBJ_NONE)
674 parse_object_or_die(&object->oid, NULL);
@@ -714,9 +712,7 @@ int prepare_bitmap_walk(struct rev_info *revs)
712 if (!bitmap_git.loaded && load_pack_bitmap() < 0)
713 return -1;
714
717 - revs->pending.nr = 0;
718 - revs->pending.alloc = 0;
719 - revs->pending.objects = NULL;
715 + object_array_clear(&revs->pending);
716
717 if (haves) {
718 revs->ignore_missing_links = 1;