From: Thomas Gummerer <t.gummerer@gmail.com>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Thomas Rast <trast@inf.ethz.ch>,
Michael Haggerty <mhagger@alum.mit.edu>,
Junio C Hamano <gitster@pobox.com>,
Robin Rosenberg <robin.rosenberg@dewire.com>,
Eric Sunshine <sunshine@sunshineco.com>
Subject: Re: [PATCH v2 03/19] read-cache: move index v2 specific functions to their own file
Date: Fri, 19 Jul 2013 16:53:51 +0200 [thread overview]
Message-ID: <87ppueha80.fsf@gmail.com> (raw)
In-Reply-To: <CACsJy8A9E5yEQZTfw6sT+2VZfDHLx5iC-mb+otRkez7f-5Mq0Q@mail.gmail.com>
Duy Nguyen <pclouds@gmail.com> writes:
> On Sat, Jul 13, 2013 at 12:26 AM, Thomas Gummerer <t.gummerer@gmail.com> wrote:
>> @@ -489,8 +479,8 @@ extern void *read_blob_data_from_index(struct index_state *, const char *, unsig
>> #define CE_MATCH_RACY_IS_DIRTY 02
>> /* do stat comparison even if CE_SKIP_WORKTREE is true */
>> #define CE_MATCH_IGNORE_SKIP_WORKTREE 04
>> -extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
>> -extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
>> +extern int ie_match_stat(struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
>> +extern int ie_modified(struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
>>
>
> I would rather we keep "const struct index_state*" if we could. I
> tried putting "const" back and found that ce_match_stat_basic() calls
> set_istate_ops(), which writes to "struct index_state". Putting
> set_istate_ops() in ce_match_stat_basic() may seem convenient, but
> does not make much sense (why would a match_stat function update
> index_ops?). I think you could move it out and
>
> - read_index calls set_istate_ops
> - (bonus) discard_index probably should reset "version" field to zero
> and clear internal_ops
> - the callers that use index without read_index must call
> initialize_index() or something, which in turn calls set_istate_ops.
> initialize_index() may take the preferred index version
> - do not let update-index modifies version field directly when
> --index-version is given. Wrap it with set_index_version() or
> something, so we can do internal conversion from one version to
> another if needed
> - remove set_istate_ops in write_index(), we may need internal_ops
> long before writing. When write_index is called, internal_ops should
> be already initialized
Ok, this makes sense. The only thing that I'm a little worried about is
catching all code paths that need to initialize the index. I'll
implement these suggestions in the re-roll.
next prev parent reply other threads:[~2013-07-19 14:54 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-12 17:26 [PATCH v2 00/19] Index-v5 Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 01/19] t2104: Don't fail for index versions other than [23] Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 02/19] read-cache: split index file version specific functionality Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 03/19] read-cache: move index v2 specific functions to their own file Thomas Gummerer
2013-07-14 3:10 ` Duy Nguyen
2013-07-19 14:53 ` Thomas Gummerer [this message]
2013-07-12 17:26 ` [PATCH v2 04/19] read-cache: Re-read index if index file changed Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 05/19] Add documentation for the index api Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 06/19] read-cache: add index reading api Thomas Gummerer
2013-07-14 3:21 ` Duy Nguyen
2013-07-12 17:26 ` [PATCH v2 07/19] make sure partially read index is not changed Thomas Gummerer
2013-07-14 3:29 ` Duy Nguyen
2013-07-17 12:56 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 08/19] grep.c: Use index api Thomas Gummerer
2013-07-14 3:32 ` Duy Nguyen
2013-07-15 9:51 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 09/19] ls-files.c: use " Thomas Gummerer
2013-07-14 3:39 ` Duy Nguyen
2013-07-17 8:07 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 10/19] documentation: add documentation of the index-v5 file format Thomas Gummerer
2013-07-14 3:59 ` Duy Nguyen
2013-07-17 8:09 ` Thomas Gummerer
2013-08-04 11:26 ` Duy Nguyen
2013-08-04 17:58 ` Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 11/19] read-cache: make in-memory format aware of stat_crc Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 12/19] read-cache: read index-v5 Thomas Gummerer
2013-07-14 4:42 ` Duy Nguyen
2013-08-07 8:13 ` Thomas Gummerer
2013-07-15 10:12 ` Duy Nguyen
2013-07-17 8:11 ` Thomas Gummerer
2013-08-08 2:00 ` Duy Nguyen
2013-08-08 13:28 ` Thomas Gummerer
2013-08-09 13:10 ` Thomas Gummerer
2013-08-07 8:23 ` Thomas Gummerer
2013-08-08 2:09 ` Duy Nguyen
2013-07-12 17:26 ` [PATCH v2 13/19] read-cache: read resolve-undo data Thomas Gummerer
2013-07-12 17:26 ` [PATCH v2 14/19] read-cache: read cache-tree in index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 15/19] read-cache: write index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 16/19] read-cache: write index-v5 cache-tree data Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 17/19] read-cache: write resolve-undo data for index-v5 Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 18/19] update-index.c: rewrite index when index-version is given Thomas Gummerer
2013-07-12 17:27 ` [PATCH v2 19/19] p0003-index.sh: add perf test for the index formats Thomas Gummerer
2013-07-14 2:59 ` [PATCH v2 00/19] Index-v5 Duy Nguyen
2013-07-15 9:30 ` Thomas Gummerer
2013-07-15 9:38 ` Duy Nguyen
2013-07-17 8:12 ` Thomas Gummerer
2013-07-17 23:58 ` Junio C Hamano
2013-07-19 17:37 ` Thomas Gummerer
2013-07-19 18:25 ` Junio C Hamano
2013-07-16 21:03 ` Ramsay Jones
2013-07-17 8:04 ` Thomas Gummerer
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