Re: Transitioning from existence-based lockfiles and /var/lock to flock

To: debian-policy@lists.debian.org
Subject: Re: Transitioning from existence-based lockfiles and /var/lock to flock
From: Simon McVittie <smcv@debian.org>
Date: Mon, 13 Oct 2025 19:57:37 +0100
Message-id: <[🔎] aO1LoYD9zK0UoMPS@remnant.pseudorandom.co.uk>
In-reply-to: <[🔎] 87frbmk68w.fsf@hope.eyrie.org>
References: <[🔎] aO0_FT9-iz46vTr_@localhost> <[🔎] 87frbmk68w.fsf@hope.eyrie.org>

On Mon, 13 Oct 2025 at 11:26:39 -0700, Russ Allbery wrote:

Way back in the day, it used to matter whether you used flock or fcntl and
one type of lock was potentially invisible to the other type of lock.

It still matters (usually). The devil is in the details: see my othermail to this thread for more on this.


    smcv

Reply to:

References:
- Transitioning from existence-based lockfiles and /var/lock to flock
  - From: Josh Triplett <josh@joshtriplett.org>
- Re: Transitioning from existence-based lockfiles and /var/lock to flock
  - From: Russ Allbery <rra@debian.org>

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