git.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Taylor Blau <me@ttaylorr.com>
To: Patrick Steinhardt <ps@pks.im>
Cc: git@vger.kernel.org, Edward Thomson <ethomson@edwardthomson.com>,
	karthik nayak <karthik.188@gmail.com>
Subject: Re: [PATCH v2 07/10] reftable/stack: adapt `format_name()` to handle allocation failures
Date: Mon, 14 Oct 2024 18:41:37 -0400	[thread overview]
Message-ID: <Zw2eIbeWUygH9+hn@nand.local> (raw)
In-Reply-To: <1f08163009b87596188165863b89b62c5f521e00.1728910727.git.ps@pks.im>

On Mon, Oct 14, 2024 at 03:02:37PM +0200, Patrick Steinhardt wrote:
> @@ -846,7 +846,10 @@ int reftable_addition_add(struct reftable_addition *add,
>  	int tab_fd;
>
>  	reftable_buf_reset(&next_name);
> -	format_name(&next_name, add->next_update_index, add->next_update_index);
> +
> +	err = format_name(&next_name, add->next_update_index, add->next_update_index);
> +	if (err < 0)
> +		goto done;
>
>  	stack_filename(&temp_tab_file_name, add->stack, next_name.buf);
>  	reftable_buf_addstr(&temp_tab_file_name, ".temp.XXXXXX");

The conversion to store the return value of 'format_name()' here makes
sense. I was going to ask why this call to reftable_buf_addstr() does
not have its own return value checked similarly, but I see that it is
handled specially a few commits later on.

I think that what you wrote here is fine, but there are a couple of
alternatives IMHO that may be worth considering in the future:

  - You could do these conversions function by function, where each
    patch handles all potential allocation failures.

    This generates more patches, but makes each individual patch a
    little easier to review in isolation, since the reviewer does not
    have to page in and out the context of what different functions do,
    etc.

  - Alternatively, you could mention something along the lines of "this
    step does not make any of these functions entirely resilient against
    allocation failures, but future commits will address the remaining
    components" to avoid temporary confusion on the reader's part
    wondering why only part of the code appears to handle allocation
    failures.

Thanks,
Taylor

  reply	other threads:[~2024-10-14 22:41 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-11  6:54 [PATCH 00/10] reftable: stop using `struct strbuf` Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 01/10] reftable: stop using `strbuf_addbuf()` Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 02/10] reftable: stop using `strbuf_addf()` Patrick Steinhardt
2024-10-11  9:51   ` karthik nayak
2024-10-14 13:09     ` Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 03/10] reftable/basics: provide new `reftable_buf` interface Patrick Steinhardt
2024-10-11 10:03   ` karthik nayak
2024-10-14 13:09     ` Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 04/10] reftable: convert from `strbuf` to `reftable_buf` Patrick Steinhardt
2024-10-11 12:12   ` karthik nayak
2024-10-14 13:09     ` Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 05/10] reftable/blocksource: adapt interface name Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 06/10] t/unit-tests: check for `reftable_buf` allocation errors Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 07/10] reftable/stack: adapt `format_name()` to handle allocation failures Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 08/10] reftable/record: adapt `reftable_record_key()` " Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 09/10] reftable/stack: adapt `stack_filename()` " Patrick Steinhardt
2024-10-11  6:54 ` [PATCH 10/10] reftable: handle trivial `reftable_buf` errors Patrick Steinhardt
2024-10-11 12:18 ` [PATCH 00/10] reftable: stop using `struct strbuf` karthik nayak
2024-10-14 13:09   ` Patrick Steinhardt
2024-10-14 13:02 ` [PATCH v2 " Patrick Steinhardt
2024-10-14 13:02   ` [PATCH v2 01/10] reftable: stop using `strbuf_addbuf()` Patrick Steinhardt
2024-10-14 22:19     ` Taylor Blau
2024-10-14 13:02   ` [PATCH v2 02/10] reftable: stop using `strbuf_addf()` Patrick Steinhardt
2024-10-14 22:32     ` Taylor Blau
2024-10-15  4:37       ` Patrick Steinhardt
2024-10-15 19:26         ` Taylor Blau
2024-10-14 13:02   ` [PATCH v2 03/10] reftable/basics: provide new `reftable_buf` interface Patrick Steinhardt
2024-10-14 22:34     ` Taylor Blau
2024-10-15  4:38       ` Patrick Steinhardt
2024-10-15  5:10         ` Eric Sunshine
2024-10-15 19:27           ` Taylor Blau
2024-10-16  8:42             ` Patrick Steinhardt
2024-10-16 20:56               ` Taylor Blau
2024-10-17  4:54                 ` Patrick Steinhardt
2024-10-17 20:59                   ` Taylor Blau
2024-10-14 13:02   ` [PATCH v2 04/10] reftable: convert from `strbuf` to `reftable_buf` Patrick Steinhardt
2024-10-14 22:35     ` Taylor Blau
2024-10-14 13:02   ` [PATCH v2 05/10] reftable/blocksource: adapt interface name Patrick Steinhardt
2024-10-14 13:02   ` [PATCH v2 06/10] t/unit-tests: check for `reftable_buf` allocation errors Patrick Steinhardt
2024-10-14 13:02   ` [PATCH v2 07/10] reftable/stack: adapt `format_name()` to handle allocation failures Patrick Steinhardt
2024-10-14 22:41     ` Taylor Blau [this message]
2024-10-14 13:02   ` [PATCH v2 08/10] reftable/record: adapt `reftable_record_key()` " Patrick Steinhardt
2024-10-14 13:02   ` [PATCH v2 09/10] reftable/stack: adapt `stack_filename()` " Patrick Steinhardt
2024-10-14 13:02   ` [PATCH v2 10/10] reftable: handle trivial `reftable_buf` errors Patrick Steinhardt
2024-10-14 22:44   ` [PATCH v2 00/10] reftable: stop using `struct strbuf` Taylor Blau
2024-10-15  4:37     ` Patrick Steinhardt
2024-10-15 10:33       ` shejialuo
2024-10-15 10:44         ` Patrick Steinhardt
2024-10-15 11:23           ` shejialuo
2024-10-17  4:53 ` [PATCH v3 " Patrick Steinhardt
2024-10-17  4:53   ` [PATCH v3 01/10] reftable: stop using `strbuf_addbuf()` Patrick Steinhardt
2024-10-17  4:53   ` [PATCH v3 02/10] reftable: stop using `strbuf_addf()` Patrick Steinhardt
2024-10-17  4:53   ` [PATCH v3 03/10] reftable/basics: provide new `reftable_buf` interface Patrick Steinhardt
2024-10-17  4:53   ` [PATCH v3 04/10] reftable: convert from `strbuf` to `reftable_buf` Patrick Steinhardt
2024-10-17  4:53   ` [PATCH v3 05/10] reftable/blocksource: adapt interface name Patrick Steinhardt
2024-10-17  4:54   ` [PATCH v3 06/10] t/unit-tests: check for `reftable_buf` allocation errors Patrick Steinhardt
2024-10-17  4:54   ` [PATCH v3 07/10] reftable/stack: adapt `format_name()` to handle allocation failures Patrick Steinhardt
2024-10-17  4:54   ` [PATCH v3 08/10] reftable/record: adapt `reftable_record_key()` " Patrick Steinhardt
2024-10-17  4:54   ` [PATCH v3 09/10] reftable/stack: adapt `stack_filename()` " Patrick Steinhardt
2024-10-17  4:54   ` [PATCH v3 10/10] reftable: handle trivial `reftable_buf` errors Patrick Steinhardt
2024-10-17 21:00   ` [PATCH v3 00/10] reftable: stop using `struct strbuf` Taylor Blau
2024-10-18  7:46     ` karthik nayak
2024-10-18 21:41       ` Taylor Blau

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Zw2eIbeWUygH9+hn@nand.local \
    --to=me@ttaylorr.com \
    --cc=ethomson@edwardthomson.com \
    --cc=git@vger.kernel.org \
    --cc=karthik.188@gmail.com \
    --cc=ps@pks.im \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).