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From: Derrick Stolee <stolee@gmail.com>
To: Eric Wong <e@80x24.org>, Junio C Hamano <gitster@pobox.com>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Phillip Wood <phillip.wood@dunelm.org.uk>,
	git@vger.kernel.org
Subject: Re: [PATCH v2 11/19] hashmap_get_next returns "struct hashmap_entry *"
Date: Wed, 25 Sep 2019 09:05:12 -0400	[thread overview]
Message-ID: <02e90301-9d50-4105-5988-853d1018ba30@gmail.com> (raw)
In-Reply-To: <20190924010324.22619-12-e@80x24.org>

On 9/23/2019 9:03 PM, Eric Wong wrote:
> This is a step towards removing the requirement for
> hashmap_entry being the first field of a struct.
> 
> Signed-off-by: Eric Wong <e@80x24.org>
> ---
>  diff.c                  | 19 ++++++++++++-------
>  diffcore-rename.c       | 11 +++++++----
>  hashmap.c               |  2 +-
>  hashmap.h               | 12 ++++++++----
>  name-hash.c             |  8 +++++---
>  t/helper/test-hashmap.c | 10 ++++++----
>  6 files changed, 39 insertions(+), 23 deletions(-)
> 
> diff --git a/diff.c b/diff.c
> index 72d3c6aa19..663b5d01f8 100644
> --- a/diff.c
> +++ b/diff.c
> @@ -1035,8 +1035,10 @@ static void pmb_advance_or_null_multi_match(struct diff_options *o,
>  {
>  	int i;
>  	char *got_match = xcalloc(1, pmb_nr);
> +	struct hashmap_entry *ent = &match->ent;
>  
> -	for (; match; match = hashmap_get_next(hm, &match->ent)) {
> +	for (; ent; ent = hashmap_get_next(hm, ent)) {

I suppose that the old code had a blank first entry in the for(;;),
but we could move our `ent = &match->ent` into the initializer, right?
That would make the loop look a little better, maybe. This happens
again below.

Thanks,
-Stolee

> @@ -1189,8 +1193,9 @@ static void mark_color_as_moved(struct diff_options *o,
>  			 * The current line is the start of a new block.
>  			 * Setup the set of potential blocks.
>  			 */
> -			for (; match; match = hashmap_get_next(hm,
> -								&match->ent)) {
> +			for (; ent; ent = hashmap_get_next(hm, ent)) {
> +				match = container_of(ent, struct moved_entry,
> +							ent);

  reply	other threads:[~2019-09-25 13:05 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-26  2:43 [PATCH 00/11] hashmap: bugfixes, safety fixes, and WIP improvements Eric Wong
2019-08-26  2:43 ` [PATCH 01/11] diff: use hashmap_entry_init on moved_entry.ent Eric Wong
2019-08-27 13:31   ` Derrick Stolee
2019-08-26  2:43 ` [PATCH 02/11] packfile: use hashmap_entry in delta_base_cache_entry Eric Wong
2019-08-26  2:43 ` [PATCH 03/11] hashmap_entry_init takes "struct hashmap_entry *" Eric Wong
2019-08-27 13:35   ` Derrick Stolee
2019-08-28 15:01     ` Johannes Schindelin
2019-08-30 19:48       ` Eric Wong
2019-09-02 13:46         ` Johannes Schindelin
2019-08-26  2:43 ` [PATCH 04/11] hashmap_entry: detect improper initialization Eric Wong
2019-08-27  9:10   ` Johannes Schindelin
2019-08-27  9:49     ` Eric Wong
2019-08-27 22:16       ` Junio C Hamano
2019-08-28 15:04         ` Johannes Schindelin
2019-08-28  9:03       ` Phillip Wood
2019-08-30 19:52         ` Eric Wong
2019-09-08  7:49   ` [RFC 04/11] coccicheck: detect hashmap_entry.hash assignment Eric Wong
2019-09-09 18:15     ` Junio C Hamano
2019-08-26  2:43 ` [PATCH 05/11] hashmap_get_next takes "const struct hashmap_entry *" Eric Wong
2019-08-26  2:43 ` [PATCH 06/11] hashmap_add takes "struct " Eric Wong
2019-08-26  2:43 ` [PATCH 07/11] hashmap_get takes "const struct " Eric Wong
2019-08-26  2:43 ` [PATCH 08/11] hashmap_remove " Eric Wong
2019-08-26  2:43 ` [PATCH 09/11] hashmap_put takes "struct " Eric Wong
2019-08-26  2:43 ` [PATCH 10/11] introduce container_of macro Eric Wong
2019-08-27 14:49   ` Derrick Stolee
2019-08-28  9:11     ` Phillip Wood
2019-08-30 19:43     ` Eric Wong
2019-08-26  2:43 ` [PATCH 11/11] hashmap_get_next returns "struct hashmap_entry *" Eric Wong
2019-08-27 14:53   ` Derrick Stolee
2019-08-30 19:36     ` Eric Wong
2019-09-24  1:03 ` [PATCH v2 00/19] hashmap bug/safety/ease-of-use fixes Eric Wong
2019-09-24  1:03   ` [PATCH v2 01/19] diff: use hashmap_entry_init on moved_entry.ent Eric Wong
2019-09-24  1:03   ` [PATCH v2 02/19] coccicheck: detect hashmap_entry.hash assignment Eric Wong
2019-09-25 12:44     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 03/19] packfile: use hashmap_entry in delta_base_cache_entry Eric Wong
2019-09-24  1:03   ` [PATCH v2 04/19] hashmap_entry_init takes "struct hashmap_entry *" Eric Wong
2019-09-25 12:48     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 05/19] hashmap_get_next takes "const struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 06/19] hashmap_add takes "struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 07/19] hashmap_get takes "const struct " Eric Wong
2019-09-25 12:52     ` Derrick Stolee
2019-09-30  9:57       ` Eric Wong
2019-09-24  1:03   ` [PATCH v2 08/19] hashmap_remove " Eric Wong
2019-09-25 12:54     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 09/19] hashmap_put takes "struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 10/19] introduce container_of macro Eric Wong
2019-09-25 13:12     ` Derrick Stolee
2019-09-30 10:39       ` Eric Wong
2019-09-24  1:03   ` [PATCH v2 11/19] hashmap_get_next returns "struct hashmap_entry *" Eric Wong
2019-09-25 13:05     ` Derrick Stolee [this message]
2019-09-24  1:03   ` [PATCH v2 12/19] hashmap: use *_entry APIs to wrap container_of Eric Wong
2019-09-25 13:15     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 13/19] hashmap_get{,_from_hash} return "struct hashmap_entry *" Eric Wong
2019-09-24  1:03   ` [PATCH v2 14/19] hashmap_cmp_fn takes hashmap_entry params Eric Wong
2019-09-24  1:03   ` [PATCH v2 15/19] hashmap: use *_entry APIs for iteration Eric Wong
2019-09-24  1:03   ` [PATCH v2 16/19] hashmap: hashmap_{put,remove} return hashmap_entry * Eric Wong
2019-09-24  1:03   ` [PATCH v2 17/19] hashmap: introduce hashmap_free_entries Eric Wong
2019-09-24  1:03   ` [PATCH v2 18/19] OFFSETOF_VAR macro to simplify hashmap iterators Eric Wong
2019-09-30 16:58     ` Junio C Hamano
2019-10-04  1:18     ` Junio C Hamano
2019-10-04  2:51       ` Eric Wong
2019-10-04  3:29         ` Junio C Hamano
2019-10-04 17:26           ` Eric Wong
2019-10-06  0:04             ` Junio C Hamano
2019-09-24  1:03   ` [PATCH v2 19/19] hashmap: remove type arg from hashmap_{get,put,remove}_entry Eric Wong
2019-09-25 12:42     ` Derrick Stolee
2019-09-25 13:30   ` [PATCH v2 00/19] hashmap bug/safety/ease-of-use fixes Derrick Stolee
2019-09-26  8:39   ` Johannes Schindelin
2019-09-30 10:01     ` Eric Wong
2019-09-26 13:48   ` Phillip Wood
2019-09-29  9:22   ` Junio C Hamano

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