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From: Derrick Stolee <stolee@gmail.com>
To: Junio C Hamano <gitster@pobox.com>,
	Jonathan Tan <jonathantanmy@google.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH v2 4/5] fetch: teach independent negotiation (no packfile)
Date: Wed, 5 May 2021 12:42:09 -0400	[thread overview]
Message-ID: <9f650594-c8a6-4d89-2686-49de48aabb62@gmail.com> (raw)
In-Reply-To: <xmqq4kfi54kb.fsf@gitster.g>

On 5/4/2021 9:53 PM, Junio C Hamano wrote:
> Jonathan Tan <jonathantanmy@google.com> writes:
> 
>> +static int add_to_object_array(const struct object_id *oid, void *data)
>> +{
>> +	struct object_array *a = data;
>> +
>> +	add_object_array(lookup_object(the_repository, oid), "", a);
> 
> Moving to lookup_object() made me look around, but at this point the
> object in question (which comes from the negotiation_tips) has been
> instantiated, so it is OK.
> 
>     Side note. The big difference between lookup and parse is what
>     happens when this process hasn't seen the object yet---the
>     former will just return NULL instead of instantiating the
>     in-core copy; for that reason, it is easier on the readers to
>     use parse_object() if we know we want an in-core object *and*
>     when we use it we want to see it parsed already).

Please forgive my incorrect recommendation here. I was expecting
lookup_object() to behave like lookup_commit(), which creates the
object if it is not already in the cached set.

>> +static void clear_common_flag(struct oidset *s)
>> +{
>> +	struct oidset_iter iter;
>> +	const struct object_id *oid;
>> +	oidset_iter_init(s, &iter);
>> +
>> +	while ((oid = oidset_iter_next(&iter))) {
>> +		struct object *obj = lookup_object(the_repository, oid);
> 
> This one obviously is OK ;-)  The fact we are clearing by definition
> means we already do have in-core objects.

Thanks for your careful eye here.

-Stolee

  reply	other threads:[~2021-05-05 17:35 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09  1:09 [PATCH 0/6] Push negotiation Jonathan Tan
2021-04-09  1:09 ` [PATCH 1/6] fetch-pack: buffer object-format with other args Jonathan Tan
2021-04-09  4:49   ` Junio C Hamano
2021-04-09 16:24     ` Jonathan Tan
2021-04-09  1:09 ` [PATCH 2/6] fetch-pack: refactor process_acks() Jonathan Tan
2021-04-09  5:08   ` Junio C Hamano
2021-05-03 16:30   ` Derrick Stolee
2021-04-09  1:10 ` [PATCH 3/6] fetch-pack: refactor add_haves() Jonathan Tan
2021-04-09  5:20   ` Junio C Hamano
2021-04-09  1:10 ` [PATCH 4/6] fetch-pack: refactor command and capability write Jonathan Tan
2021-04-09  5:27   ` Junio C Hamano
2021-04-09  1:10 ` [PATCH 5/6] fetch: teach independent negotiation (no packfile) Jonathan Tan
2021-04-09  5:41   ` Junio C Hamano
2021-04-09 16:38     ` Jonathan Tan
2021-05-03 15:25   ` Derrick Stolee
2021-05-03 15:40     ` Derrick Stolee
2021-05-03 21:52     ` Jonathan Tan
2021-04-09  1:10 ` [PATCH 6/6] send-pack: support push negotiation Jonathan Tan
2021-05-03 15:35   ` Derrick Stolee
2021-05-03 22:02     ` Jonathan Tan
2021-05-04 17:26       ` Derrick Stolee
2021-04-30  5:42 ` [PATCH 0/6] Push negotiation Junio C Hamano
2021-04-30 17:33   ` Derrick Stolee
2021-05-04 21:15 ` [PATCH v2 0/5] " Jonathan Tan
2021-05-04 21:15   ` [PATCH v2 1/5] fetch-pack: refactor process_acks() Jonathan Tan
2021-05-04 21:15   ` [PATCH v2 2/5] fetch-pack: refactor add_haves() Jonathan Tan
2021-05-04 21:16   ` [PATCH v2 3/5] fetch-pack: refactor command and capability write Jonathan Tan
2021-05-04 21:16   ` [PATCH v2 4/5] fetch: teach independent negotiation (no packfile) Jonathan Tan
2021-05-05  1:53     ` Junio C Hamano
2021-05-05 16:42       ` Derrick Stolee [this message]
2021-05-06  2:12         ` Junio C Hamano
2021-05-05 16:44     ` Derrick Stolee
2021-05-04 21:16   ` [PATCH v2 5/5] send-pack: support push negotiation Jonathan Tan

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