Date: Wed, 06 Jul 2011 13:33:32 -0700 From: Doug Barton <dougb@FreeBSD.org> To: Boris Samorodov <bsam@ipt.ru> Cc: cvs-ports@FreeBSD.org, cvs-all@FreeBSD.org, ports-committers@FreeBSD.org Subject: Re: cvs commit: ports/multimedia/zoneminder/files zm.in Message-ID: <4E14C69C.8030200@FreeBSD.org> In-Reply-To: <00116999@h30.sp.ipt.ru> References: <201107061434.p66EY0OG062221@repoman.freebsd.org> <4E14B6E4.50609@FreeBSD.org> <00116999@h30.sp.ipt.ru>
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On 07/06/2011 13:15, Boris Samorodov wrote:
> Hello All,
>
> Doug, thanks for you help.
Glad to help. :)
> On Wed, 06 Jul 2011 12:26:28 -0700 Doug Barton wrote:
>> On 07/06/2011 07:34, Boris Samorodov wrote:
>
>>> . do a 10 seconds pause only at system startup.
>
>> The question is, what is your goal for including that? Does zoneminder
>> need this delay after it starts? Before it starts? If so, then the
>> right thing to do is likely to put it in either a start_precmd or
>> start_postcmd. That way you get 'checkyesno zoneminder_enable' for
>> free. If the delay is only applicable at boot time, then you
>> can/should include the code that you added in this version.
>
> Actually the problem is run time mysqld dependency.
> The option REQUIRE: mysql is not efficient here. I'm not sure what/how
> mysql is started, but zoneminder can not start right after mysql is
> up. If I use 5 seconds pause, zoneminder starts successfully at 50%
> of bootings. Ten seconds pause is enough to start zoneminder.
>
> So, this delay is needed only at machine booting time. I'm not sure if
> start_precmd is any way better here.
Yeah, you'd want to do that in a start_precmd, and probably testing for
autoboot is better than faststart. So something like:
start_precmd=zm_prestart
zm_prestart()
{
[ -n "$autoboot" ] && sleep 10
}
Of course, if there was some mysql command you could run to verify that
the db is up that would be better than an unconditional sleep. Something
like this:
zm_prestart()
{
local _count=0
while : ; do
<mysqltestcommand> && return
_count=$(( $_count + 1 ))
if [ $_count -gt 10 ]; then
err 1 "${name}: <mysqltestcommand> failed"
fi
sleep 1
done
}
hth,
Doug
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