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From: "René Scharfe" <l.s.r@web.de>
To: Christian Couder <christian.couder@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
	Junio C Hamano <gitster@pobox.com>,
	Chris Torek <chris.torek@gmail.com>, Johannes Sixt <j6t@kdbg.org>
Subject: Re: [PATCH v2] upload-pack: use buffered I/O to talk to rev-list
Date: Thu, 13 Aug 2020 07:57:20 +0200	[thread overview]
Message-ID: <866055fd-7857-3eb3-6dae-befc8f891994@web.de> (raw)
In-Reply-To: <CAP8UFD1rDZOQSDWhc+xdEQVX+Umq-nE-sd-orgKZ3UWTWFHJhw@mail.gmail.com>

Am 13.08.20 um 07:17 schrieb Christian Couder:
> On Wed, Aug 12, 2020 at 6:54 PM René Scharfe <l.s.r@web.de> wrote:
>
>> -       close(cmd->in);
>> +       if (ferror(cmd_in) || fflush(cmd_in))
>> +               goto error;
>> +       fclose(cmd_in);
>>         cmd->in = -1;
>
> I wonder if setting cmd->in to -1 is still useful...

The patch doesn't change its usefulness.  It probably was not necessary
to begin with.

>
>>         sigchain_pop(SIGPIPE);
>>

The next line right here (not shown in the diff) returns 0.

>> @@ -660,8 +658,8 @@ static int do_reachable_revlist(struct child_process *cmd,
>>  error:
>>         sigchain_pop(SIGPIPE);
>>
>> -       if (cmd->in >= 0)
>> -               close(cmd->in);
>> +       if (cmd_in)
>> +               fclose(cmd_in);
>
> ...as we don't check cmd->in anymore at the end of the function, but
> we now check cmd_in instead. So should cmd_in have been set to -1
> instead of cmd->in?

This error handler is not reached from the place that sets cmd->in back
to -1.  It can be reached from a place where cmd_in is still NULL, so
this check is necessary and setting cmd_in to NULL above is not needed.

René

  reply	other threads:[~2020-08-13  6:00 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-02 14:38 [PATCH] " René Scharfe
2020-08-02 16:03 ` Chris Torek
2020-08-03 14:00   ` René Scharfe
2020-08-03 15:54     ` Chris Torek
2020-08-03 18:15   ` Johannes Sixt
2020-08-12 16:52 ` [PATCH v2] " René Scharfe
2020-08-13  5:17   ` Christian Couder
2020-08-13  5:57     ` René Scharfe [this message]
2020-08-13  9:01       ` Jeff King

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