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Date:      Thu, 21 Dec 1995 11:58:25 +0300 (MSK)
From:      =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) <ache@astral.msk.su>
To:        hackers@freebsd.org
Subject:   weekly/monthly logs rotating idea (commit candidate)
Message-ID:  <OHn6Ismy68@ache.dialup.ru>

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Current logs rotating code
	...
	if [ -f $i.1 ]; then mv -f $i.1 $i.2; fi
	if [ -f $i.0 ]; then mv -f $i.0 $i.1; fi
	if [ -f $i ]; then mv -f $i $i.0; fi
	>$i
isn't good for daemons, because thet keep log descriptor open.
It means that daemon_log moved to daemon_log.0 and diagnostics
still writted to daemon_log.0! New daemon_log leaves zero-sized
until reboot.

What I suggest:

	if [ -f $i.0 ]; then mv -f $i.0 $i.1; fi
	if [ -f $i ]; then cp -fp $i $i.0; fi
	>$i

It means that you copy log preserving file times and then
zero the same descriptor.

If I not see objections with explanations, I plan to commit it.

-- 
Andrey A. Chernov        : And I rest so composedly,  /Now, in my bed,
ache@astral.msk.su       : That any beholder  /Might fancy me dead -
http://dt.demos.su/~ache : Might start at beholding me,  /Thinking me dead.
RELCOM Team,FreeBSD Team :         E.A.Poe         From "For Annie" 1849



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