git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed

From: Lars Schneider <larsxschneider@gmail.com>
To: Git Mailing List <git@vger.kernel.org>
Cc: Junio C Hamano <gitster@pobox.com>, Johannes Sixt <j6t@kdbg.org>
Subject: Looking for help to understand external filter driver code
Date: Tue, 19 Jul 2016 18:40:48 +0200	[thread overview]
Message-ID: <67D9AC88-550E-4549-9AFD-2401B70B363B@gmail.com> (raw)

Hi,

a long time ago in aa4ed4 Junio introduced the external filter driver definition. Since that time we fork the Git process and then we fork again to run the external filter. This is probably a super stupid question with an obvious answer... but can anyone help me to understand the code and explain why we fork twice? Wouldn't it be sufficient to just fork once for the external filter since we cannot process anything in parallel anyways?

In 546bb5 Hannes refactored Junio's code to use the async infrastructure that is used today.

Thank you,
Lars

next             reply	other threads:[~2016-07-19 16:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-19 16:40 Lars Schneider [this message]
2016-07-19 17:56 ` Looking for help to understand external filter driver code Junio C Hamano
2016-07-19 18:53   ` Junio C Hamano
2016-07-19 20:44     ` Lars Schneider
2016-07-19 21:33       ` Junio C Hamano
2016-07-19 22:01         ` Lars Schneider
2016-07-20  2:33           ` Torsten Bögershausen
2016-07-20  8:59         ` Jakub Narębski
2016-07-20  9:43           ` Lars Schneider
2016-07-20 13:49         ` Jeff King

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

  List information: http://vger.kernel.org/majordomo-info.html

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

  git send-email \
    --in-reply-to=67D9AC88-550E-4549-9AFD-2401B70B363B@gmail.com \
    --to=larsxschneider@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=gitster@pobox.com \
    --cc=j6t@kdbg.org \
    /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

Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

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 read-only IMAP folder(s) and NNTP newsgroup(s).