From: Wayne Davison <wayned@users.sourceforge.net>
To: Peter Stephenson <pws@csr.com>
Cc: zsh-workers@sunsite.dk
Subject: Re: revisiting history-file rewriting
Date: Fri, 18 Mar 2005 09:58:02 -0800 [thread overview]
Message-ID: <20050318175802.GD5500@blorf.net> (raw)
In-Reply-To: <200503181049.j2IAn96p007683@news01.csr.com>
On Fri, Mar 18, 2005 at 10:49:08AM +0000, Peter Stephenson wrote:
> How would this change the result when multiple shells exit at once?
> I'm not entirely clear how the locking affects the fact that multiple
> shells want to rewrite the file in this case.
It doesn't change that behavior except to make it safer -- if zsh is
forcefully killed it might be in the middle of writing out a new copy of
the history file instead of a truncated version of the real history
file.
Note also that for anyone using one of the history-appending options
that I've already eliminated the multi-shell locking contention at
system shutdown time because zsh no longer tries to rewrite the history
file on a kill signal (and doesn't need to touch the history file at all
if it has no history data left to append).
..wayne..
next prev parent reply other threads:[~2005-03-18 17:58 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-16 20:40 Wayne Davison
2005-03-17 2:09 ` Geoff Wing
2005-03-17 2:49 ` Wayne Davison
2005-03-18 16:18 ` Andrey Borzenkov
2005-03-18 17:51 ` Wayne Davison
2005-03-18 18:02 ` Wayne Davison
2005-03-17 18:03 ` Bart Schaefer
2005-03-18 18:19 ` Wayne Davison
2005-03-18 21:15 ` Bart Schaefer
2005-03-18 21:47 ` Wayne Davison
2005-03-18 10:49 ` Peter Stephenson
2005-03-18 17:58 ` Wayne Davison [this message]
2005-03-18 18:24 ` Peter Stephenson
2005-03-18 22:53 ` Wayne Davison
2005-03-20 1:57 ` Bart Schaefer
2005-03-21 10:39 ` Peter Stephenson
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