From: Junio C Hamano <gitster@pobox•com>
To: Michael Haggerty <mhagger@alum•mit.edu>
Cc: Brad King <brad.king@kitware•com>,
Johan Herland <johan@herland•net>, Jeff King <peff@peff•net>,
Vicent Marti <tanoku@gmail•com>,
git@vger•kernel.org
Subject: Re: [PATCH v2 23/27] struct ref_update: Store refname as a FLEX_ARRAY.
Date: Tue, 01 Apr 2014 12:54:52 -0700 [thread overview]
Message-ID: <xmqqd2h0zuyb.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <1395683820-17304-24-git-send-email-mhagger@alum.mit.edu> (Michael Haggerty's message of "Mon, 24 Mar 2014 18:56:56 +0100")
Michael Haggerty <mhagger@alum•mit.edu> writes:
> Signed-off-by: Michael Haggerty <mhagger@alum•mit.edu>
> ---
> refs.c | 15 ++++++---------
> 1 file changed, 6 insertions(+), 9 deletions(-)
>
> diff --git a/refs.c b/refs.c
> index d72d0ab..2b80f6d 100644
> --- a/refs.c
> +++ b/refs.c
> @@ -3274,11 +3274,11 @@ static int update_ref_write(const char *action, const char *refname,
> * value or to zero to ensure the ref does not exist before update.
> */
> struct ref_update {
> - const char *refname;
> unsigned char new_sha1[20];
> unsigned char old_sha1[20];
> int flags; /* REF_NODEREF? */
> int have_old; /* 1 if old_sha1 is valid, 0 otherwise */
> + const char refname[FLEX_ARRAY];
> };
Yeah, as we no longer borrow a pointer but make our own copy since
the earlier patch in the series, this perfectly makes sense.
>
> /*
> @@ -3301,12 +3301,8 @@ static void ref_transaction_free(struct ref_transaction *transaction)
> {
> int i;
>
> - for (i = 0; i < transaction->nr; i++) {
> - struct ref_update *update = transaction->updates[i];
> -
> - free((char *)update->refname);
> - free(update);
> - }
> + for (i = 0; i < transaction->nr; i++)
> + free(transaction->updates[i]);
>
> free(transaction->updates);
> free(transaction);
> @@ -3320,9 +3316,10 @@ void ref_transaction_rollback(struct ref_transaction *transaction)
> static struct ref_update *add_update(struct ref_transaction *transaction,
> const char *refname)
> {
> - struct ref_update *update = xcalloc(1, sizeof(*update));
> + size_t len = strlen(refname);
> + struct ref_update *update = xcalloc(1, sizeof(*update) + len + 1);
>
> - update->refname = xstrdup(refname);
> + strcpy((char *)update->refname, refname);
> ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc);
> transaction->updates[transaction->nr++] = update;
> return update;
next prev parent reply other threads:[~2014-04-01 19:55 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-24 17:56 [PATCH v2 00/27] Clean up update-refs --stdin and implement ref_transaction Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 01/27] t1400: Fix name and expected result of one test Michael Haggerty
2014-03-31 21:30 ` Junio C Hamano
2014-03-31 21:49 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 02/27] t1400: Provide more usual input to the command Michael Haggerty
2014-03-31 21:28 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 03/27] parse_arg(): Really test that argument is properly terminated Michael Haggerty
2014-03-31 21:36 ` Junio C Hamano
2014-03-31 22:11 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 04/27] t1400: Add some more tests involving quoted arguments Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 05/27] refs.h: Rename the action_on_err constants Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 06/27] update_refs(): Fix constness Michael Haggerty
2014-03-31 21:40 ` Junio C Hamano
2014-03-31 22:16 ` Michael Haggerty
2014-03-31 22:38 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 07/27] update-ref --stdin: Read the whole input at once Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 08/27] parse_cmd_verify(): Copy old_sha1 instead of evaluating <oldvalue> twice Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 09/27] update-ref.c: Extract a new function, parse_refname() Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 10/27] update-ref --stdin: Improve error messages for invalid values Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 11/27] update-ref --stdin: Make error messages more consistent Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 12/27] update-ref --stdin: Simplify error messages for missing oldvalues Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 13/27] t1400: Test that stdin -z update treats empty <newvalue> as zeros Michael Haggerty
2014-03-31 21:48 ` Junio C Hamano
2014-03-31 22:20 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 14/27] update-ref.c: Extract a new function, parse_next_sha1() Michael Haggerty
2014-03-26 18:39 ` Brad King
2014-03-24 17:56 ` [PATCH v2 15/27] update-ref --stdin -z: Deprecate interpreting the empty string as zeros Michael Haggerty
2014-03-31 21:49 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 16/27] t1400: Test one mistake at a time Michael Haggerty
2014-03-26 18:39 ` Brad King
2014-03-31 21:50 ` Junio C Hamano
2014-03-31 22:32 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 17/27] update-ref --stdin: Improve the error message for unexpected EOF Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 18/27] update-ref --stdin: Harmonize error messages Michael Haggerty
2014-03-31 21:51 ` Junio C Hamano
2014-03-31 22:37 ` Michael Haggerty
2014-04-01 9:29 ` Michael Haggerty
2014-04-02 16:38 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 19/27] refs: Add a concept of a reference transaction Michael Haggerty
2014-03-26 18:39 ` Brad King
2014-03-26 21:42 ` Michael Haggerty
2014-04-01 19:39 ` Junio C Hamano
2014-04-02 4:57 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 20/27] update-ref --stdin: Reimplement using reference transactions Michael Haggerty
2014-04-01 19:46 ` Junio C Hamano
2014-04-02 5:03 ` Michael Haggerty
2014-04-03 15:57 ` Junio C Hamano
2014-04-04 5:02 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 21/27] refs: Remove API function update_refs() Michael Haggerty
2014-04-01 19:46 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 22/27] struct ref_update: Rename field "ref_name" to "refname" Michael Haggerty
2014-04-01 19:53 ` Junio C Hamano
2014-04-02 5:11 ` Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 23/27] struct ref_update: Store refname as a FLEX_ARRAY Michael Haggerty
2014-04-01 19:54 ` Junio C Hamano [this message]
2014-03-24 17:56 ` [PATCH v2 24/27] ref_transaction_commit(): Introduce temporary variables Michael Haggerty
2014-04-01 19:26 ` Junio C Hamano
2014-03-24 17:56 ` [PATCH v2 25/27] struct ref_update: Add a lock member Michael Haggerty
2014-03-24 17:56 ` [PATCH v2 26/27] struct ref_update: Add type field Michael Haggerty
2014-04-01 20:03 ` Junio C Hamano
2014-04-02 10:13 ` Michael Haggerty
2014-04-02 17:44 ` Junio C Hamano
2014-03-24 17:57 ` [PATCH v2 27/27] ref_transaction_commit(): Work with transaction->updates in place Michael Haggerty
2014-03-26 18:39 ` [PATCH v2 00/27] Clean up update-refs --stdin and implement ref_transaction Brad King
2014-03-26 21:47 ` Michael Haggerty
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