From: Chris Torek <chris.torek@gmail.com>
To: "René Scharfe" <l.s.r@web.de>
Cc: Git Mailing List <git@vger.kernel.org>,
Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH] connected: use buffered I/O to talk to rev-list
Date: Sun, 2 Aug 2020 09:08:08 -0700
Message-ID: <CAPx1Gvesmwf_CBj6D=YriFQgtEsDyUe7PHa6p9AvxG=fwAvHpA@mail.gmail.com> (raw)
In-Reply-To: <2e2907ac-3be9-c0ed-830a-f8aa28b471aa@web.de>
On Sun, Aug 2, 2020 at 7:39 AM René Scharfe <l.s.r@web.de> wrote:
> @@ -135,16 +135,10 @@ int check_connected(oid_iterate_fn fn, void *cb_data,
> if (new_pack && find_pack_entry_one(oid.hash, new_pack))
> continue;
>
> - memcpy(commit, oid_to_hex(&oid), hexsz);
> - if (write_in_full(rev_list.in, commit, hexsz + 1) < 0) {
> - if (errno != EPIPE && errno != EINVAL)
> - error_errno(_("failed write to rev-list"));
> - err = -1;
> - break;
> - }
> + fprintf(rev_list_in, "%s\n", oid_to_hex(&oid));
> } while (!fn(cb_data, &oid));
>
> - if (close(rev_list.in))
> + if (fclose(rev_list_in))
> err = error_errno(_("failed to close rev-list's stdin"));
>
> sigchain_pop(SIGPIPE);
> --
> 2.28.0
The same ferror()-before-fclose() remarks apply here too,
but this time the explicit errno checking (EPIPE) cannot
be done -- it's too late, errno is probably overwritten. I'm
not sure how valuable the explicit errno tests are in the first
place so I will leave that to others, but if we want to keep
the explicit tests, use:
if (fprintf(...) < 0)
to check each fprintf(), and add a final fflush() call (with
another check) before the fclose().
Chris
next prev parent reply other threads:[~2020-08-02 16:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-02 14:38 René Scharfe
2020-08-02 16:08 ` Chris Torek [this message]
2020-08-03 18:17 ` Johannes Sixt
2020-08-12 16:52 ` [PATCH v2] " René Scharfe
2020-08-13 9:16 ` Jeff King
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