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From: Eric Sunshine <sunshine@sunshineco.com>
To: Christian Couder <christian.couder@gmail.com>
Cc: Pranit Bauva <pranit.bauva@gmail.com>,
	Git List <git@vger.kernel.org>,
	Christian Couder <chriscool@tuxfamily.org>,
	Lars Schneider <larsxschneider@gmail.com>
Subject: Re: [PATCH 1/4] bisect--helper: `bisect_clean_state` shell function in C
Date: Wed, 8 Jun 2016 13:59:09 -0400	[thread overview]
Message-ID: <CAPig+cQ5z+-59BCjPXNaSQWkSyTt56yAnRo49Lba6_wjkWRp-w@mail.gmail.com> (raw)
In-Reply-To: <CAP8UFD0Q7WnKpoY76w5Lqr4P6fCo4KboiwfrZ-L+q+h5Lhysjw@mail.gmail.com>

On Wed, Jun 8, 2016 at 5:41 AM, Christian Couder
<christian.couder@gmail.com> wrote:
> On Wed, Jun 8, 2016 at 10:02 AM, Eric Sunshine <sunshine@sunshineco.com> wrote:
>> On Wed, Jun 8, 2016 at 3:46 AM, Pranit Bauva <pranit.bauva@gmail.com> wrote:
>>> On Wed, Jun 8, 2016 at 4:01 AM, Eric Sunshine <sunshine@sunshineco.com> wrote:
>>>> On Tue, Jun 7, 2016 at 4:54 PM, Pranit Bauva <pranit.bauva@gmail.com> wrote:
>>>>> +       struct string_list *refs = cb_data;
>>>>> +       char *ref = xstrfmt("refs/bisect/%s", refname);
>>>>
>>>> Here you're allocating a string...
>>>>
>>>>> +       string_list_append(refs, ref);
>>>>> +       return 0;
>>>>> +}
>>>>> +
>>>>> +int bisect_clean_state(void)
>>>>> +{
>>>>> +       int result = 0;
>>>>> +       struct string_list refs_for_removal = STRING_LIST_INIT_DUP;
>>>>> +       for_each_ref_in("refs/bisect/", mark_for_removal, (void *) &refs_for_removal);
>>>>
>>>> ...and the allocated string gets inserted into a string_list which
>>>> itself duplicates the string (STRING_LIST_INIT_DUP), so this is
>>>> leaking the string you created with xstrfmt(), isn't it?
>>>
>>> Yes nice catch. I would prefer using the string_list with
>>> STRING_LIST_INIT_DUP and free the ref.
>>
>> That's unnecessarily wasteful. Better would be to to use STRING_LIST_INIT_NODUP.
>
> In this case it is not possible to append "BISECT_HEAD" to
> 'refs_for_removal' before calling delete_refs() like this:
>
> +       for_each_ref_in("refs/bisect/", mark_for_removal, (void *)
> &refs_for_removal);
> +       string_list_append(&refs_for_removal, "BISECT_HEAD");
> +       result = delete_refs(&refs_for_removal);
> +       string_list_clear(&refs_for_removal, 0);
>
> And I think it's better to delete all the refs in the same call to
> delete_refs().

string_list_append(&..., xstrdup("BISECT_HEAD"));

perhaps?

  reply	other threads:[~2016-06-08 17:59 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-07 20:54 [PATCH 1/4] bisect--helper: `bisect_clean_state` shell function in C Pranit Bauva
2016-06-07 20:54 ` [PATCH 2/4] t6030: explicitly test for bisection cleanup Pranit Bauva
2016-06-07 23:21   ` Eric Sunshine
2016-06-08  8:07     ` Pranit Bauva
2016-06-08  8:17       ` Eric Sunshine
2016-06-08 10:20         ` Pranit Bauva
2016-06-07 20:54 ` [PATCH 3/4] dir: introduce file_size() to check the size of file Pranit Bauva
2016-06-08  7:37   ` Eric Sunshine
2016-06-08  7:57     ` Pranit Bauva
2016-06-08  8:13       ` Eric Sunshine
2016-06-08 10:03         ` Christian Couder
2016-06-08  8:17       ` Torsten Bögershausen
2016-06-08 13:08         ` Pranit Bauva
2016-06-12 10:44           ` Torsten Bögershausen
2016-06-13  6:21             ` Pranit Bauva
2016-06-07 20:54 ` [PATCH 4/4] bisect--helper: `bisect_reset` shell function in C Pranit Bauva
2016-06-08  7:59   ` Eric Sunshine
2016-06-08  9:51     ` Christian Couder
2016-06-08  9:53       ` Christian Couder
2016-06-08 17:50       ` Eric Sunshine
2016-06-08 13:20     ` Pranit Bauva
2016-06-08 17:53       ` Eric Sunshine
2016-06-08 18:04         ` Pranit Bauva
2016-06-07 22:31 ` [PATCH 1/4] bisect--helper: `bisect_clean_state` " Eric Sunshine
2016-06-08  1:51   ` Eric Sunshine
2016-06-08  7:46   ` Pranit Bauva
2016-06-08  8:02     ` Eric Sunshine
2016-06-08  8:09       ` Pranit Bauva
2016-06-08  9:41       ` Christian Couder
2016-06-08 17:59         ` Eric Sunshine [this message]
2016-06-08 18:04           ` Pranit Bauva
2016-06-15 14:00 ` [PATCH v2 0/6] convert various shell functions in git-bisect to C Pranit Bauva
2016-06-15 14:00   ` [PATCH v2 1/6] bisect--helper: `bisect_clean_state` shell function in C Pranit Bauva
2016-06-15 18:04     ` Eric Sunshine
2016-06-15 18:47       ` Pranit Bauva
2016-06-15 20:22         ` Eric Sunshine
2016-06-15 14:00   ` [PATCH v2 2/6] t6030: explicitly test for bisection cleanup Pranit Bauva
2016-06-15 14:00   ` [PATCH v2 3/6] wrapper: move is_empty_file() from builtin/am.c Pranit Bauva
2016-06-15 18:12     ` Junio C Hamano
2016-06-15 18:15       ` Pranit Bauva
2016-06-15 18:22     ` Eric Sunshine
2016-06-15 18:40       ` Pranit Bauva
2016-06-15 14:00   ` [PATCH v2 4/6] bisect--helper: `bisect_reset` shell function in C Pranit Bauva
2016-06-15 21:05     ` Eric Sunshine
2016-06-16 19:06       ` Pranit Bauva
2016-06-15 14:00   ` [PATCH v2 5/6] bisect--helper: `is_expected_rev` & `check_expected_revs` " Pranit Bauva
2016-06-15 21:14     ` Eric Sunshine
2016-06-16 19:05       ` Pranit Bauva
2016-06-16 19:16         ` Eric Sunshine
2016-06-16 19:25           ` Pranit Bauva
2016-06-16 20:47             ` Christian Couder
2016-06-17 12:49               ` Pranit Bauva
2016-06-15 14:00   ` [PATCH v2 6/6] bisect--helper: `bisect_write` " Pranit Bauva
2016-06-16 18:55     ` Eric Sunshine
2016-06-16 19:01       ` Pranit Bauva
2016-06-16 20:38         ` Christian Couder
2016-06-17 13:10           ` Pranit Bauva
2016-06-15 17:53   ` [PATCH v2 0/6] convert various shell functions in git-bisect to C Eric Sunshine
2016-06-15 18:09     ` Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 " Pranit Bauva
2016-07-06 20:25   ` [PATCH v4 " Pranit Bauva
2016-07-06 20:25     ` [PATCH v4 1/6] bisect--helper: `bisect_clean_state` shell function in C Pranit Bauva
2016-07-06 20:25     ` [PATCH v4 2/6] t6030: explicitly test for bisection cleanup Pranit Bauva
2016-07-11 19:16       ` Junio C Hamano
2016-07-06 20:25     ` [PATCH v4 3/6] wrapper: move is_empty_file() and rename it as is_empty_or_missing_file() Pranit Bauva
2016-07-06 20:25     ` [PATCH v4 4/6] bisect--helper: `bisect_reset` shell function in C Pranit Bauva
2016-07-06 20:25     ` [PATCH v4 5/6] bisect--helper: `is_expected_rev` & `check_expected_revs` " Pranit Bauva
2016-07-06 20:25     ` [PATCH v4 6/6] bisect--helper: `bisect_write` " Pranit Bauva
2016-07-11 19:19     ` [PATCH v4 0/6] convert various shell functions in git-bisect to C Junio C Hamano
2016-06-26 12:23 ` [PATCH v3 1/6] bisect--helper: `bisect_clean_state` shell function in C Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 2/6] t6030: explicitly test for bisection cleanup Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 3/6] wrapper: move is_empty_file() and rename it as is_empty_or_missing_file() Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 4/6] bisect--helper: `bisect_reset` shell function in C Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 5/6] bisect--helper: `is_expected_rev` & `check_expected_revs` " Pranit Bauva
2016-06-26 12:23 ` [PATCH v3 6/6] bisect--helper: `bisect_write` " Pranit Bauva

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