Date: Tue, 22 Jan 2013 10:36:30 -0500 From: Greg Larkin <glarkin@FreeBSD.org> To: Grzegorz Blach <magik@roorback.net> Cc: freebsd-ports@freebsd.org Subject: Re: How to launch services that do not fork to background using the rc infrastructure? Message-ID: <50FEB1FE.3030709@FreeBSD.org> In-Reply-To: <50FEB055.8080601@roorback.net> References: <50FEAE0D.5090505@diatel.upm.es> <50FEB055.8080601@roorback.net>
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On 1/22/13 10:29 AM, Grzegorz Blach wrote:
> On 01/22/2013 04:19 PM, Javier Mart=EF=BF=ADn Rueda wrote:
>> The typical and simple rc.d script to launch a service has,
>> esentially, the following:
>>=20
>> . /etc/rc.subr
>>=20
>> name=3DSERVICE rcvar=3DSERVICE_enable
>>=20
>> command=3D"/usr/local/sbin/PROGRAM"
>>=20
>> pidfile=3D/var/run/${name}.pid=20
>> SERVICE_enable=3D${SERVICE_enable:-"NO"}
>>=20
>> load_rc_config ${name} run_rc_command "$1"
>>=20
>> One of the ports (net/spread4) runs a PROGRAM that does not fork
>> to background as a daemon and which does not have any
>> command-line option to ask it to do so. Therefore, the rc.d
>> script never finishes, with various consequences (system boot
>> stops, no pid file generated...)
>>=20
>> I tried adding a "&" to SERVICE_flags to see if it made it run in
>> the background, but it didn't do the trick. I also quickly
>> checked the /etc/rc.subr code to see if there is any way of
>> forcing a background launch, but couldn't see anything. No luck
>> searching the web or problem reports either.
>>=20
>> So, my question is whether there is a non-obvious way of forcing
>> a program to start in background using the rc infrastructure.
>>=20
>=20
>=20
> Try command=3D"/usr/sbin/daemon -c -f -p $pidfile PROGRAM" or some
> thing like this.
>=20
Here's a full example of that in the ViewVC rc.d script:
http://svnweb.freebsd.org/ports/head/devel/viewvc/files/viewvc.in?revisio=
n=3D300896&view=3Dmarkup
Hope it helps,
Greg
- --=20
Greg Larkin
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