patch-ids.c: use hashmap correctly
As alluded to in the previous patch, the code in patch-ids.c is
using the hashmaps API wrong.
Luckily we do not have a bug, as all hashmap functionality that we use
here (hashmap_get) passes through the keydata. If hashmap_get_next were
to be used, a bug would occur as that passes NULL for the key_data.
So instead use the hashmap API correctly and provide the caller required
data in the compare function via the first argument that always gets
passed and was setup via the hashmap_init function.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/patch-ids.c b/patch-ids.c
index 815c115..b4166b0 100644
--- a/patch-ids.c
+++ b/patch-ids.c
@@ -35,10 +35,10 @@
* the side of safety. The actual value being negative does not have
* any significance; only that it is non-zero matters.
*/
-static int patch_id_cmp(const void *unused_cmp_data,
+static int patch_id_cmp(struct diff_options *opt,
struct patch_id *a,
struct patch_id *b,
- struct diff_options *opt)
+ const void *unused_keydata)
{
if (is_null_oid(&a->patch_id) &&
commit_patch_id(a->commit, opt, &a->patch_id, 0))
@@ -59,7 +59,7 @@
DIFF_OPT_SET(&ids->diffopts, RECURSIVE);
diff_setup_done(&ids->diffopts);
hashmap_init(&ids->patches, (hashmap_cmp_fn)patch_id_cmp,
- NULL, 256);
+ &ids->diffopts, 256);
return 0;
}
@@ -95,7 +95,7 @@
if (init_patch_id_entry(&patch, commit, ids))
return NULL;
- return hashmap_get(&ids->patches, &patch, &ids->diffopts);
+ return hashmap_get(&ids->patches, &patch, NULL);
}
struct patch_id *add_commit_patch_id(struct commit *commit,
