Date: 14 Jun 2001 02:35:36 +0200 From: Cyrille Lefevre <clefevre-lists@noos.fr> To: Jon Parise <jon@csh.rit.edu> Cc: Matt Dillon <dillon@earth.backplane.com>, Will Andrews <will@physics.purdue.edu>, Andrew Hesford <ajh3@usrlib.org>, Warner Losh <imp@harmony.village.org>, Mark Santcroos <marks@ripe.net>, Doug Barton <DougB@DougBarton.net>, bsddiy@163.net, freebsd-hackers@FreeBSD.ORG Subject: Re: import NetBSD rc system Message-ID: <lmmvoq3r.fsf@gits.dyndns.org> In-Reply-To: <20010611233420.I26841@csh.rit.edu> References: <200106111854.f5BIsX728995@earth.backplane.com> <20010611174717.A77956@laptop.6bone.nl> <1795096378.20010611154930@163.net> <3B2484EA.B1F04812@DougBarton.net> <200106111800.f5BI0il25446@billy-club.village.org> <200106111854.f5BIsX728995@earth.backplane.com> <200106111856.f5BIu8V39651@harmony.village.org> <20010611203749.D24399@core.usrlib.org> <20010611205158.J23562@bohr.physics.purdue.edu> <200106120305.f5C35Ri37415@earth.backplane.com> <20010611233420.I26841@csh.rit.edu>
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Jon Parise <jon@csh.rit.edu> writes:
[snip]
> With the proposed NetBSD-derived system, individual services are
> isolated in their very own scripts, making starting / stopping
> them very convenient (the only advantage I see to the SysV
> layout). In addition, the integrity of dependency graph is also
> maintained, while retaining extra flexibility.
not always. the dependency graph works fine if you start/stop all
services at once, but not individually such as :
starting nfsd should required mountd but actually, it don't start it.
let's try :
(for testing purpose, all rc files have been modified to use relative
references instead of absolute ones)
$ cat rc.conf
rc_configured=YES
rc1=YES
rc2=YES
$ cat rc.d/rc1
# PROVIDE: rc1
# REQUIRE: rc2
_etc=${_etc:-${0%/*}/..}
. $_etc/rc.subr
name="rc1"
rcvar="rc1"
command="/bin/echo"
command_args="rc1"
required_vars="rc2"
load_rc_config $name
run_rc_command "$1"
$ cat rc.d/rc2
# PROVIDE: rc2
_etc=${_etc:-${0%/*}/..}
. $_etc/rc.subr
name="rc2"
rcvar="rc2"
command="/bin/echo"
command_args="rc2"
required_vars="rc1"
load_rc_config $name
run_rc_command "$1"
$ ./rc
Thu Jun 14 02:33:23 CEST 2001
Starting rc2.
rc2
Starting rc1.
rc1
Thu Jun 14 02:33:24 CEST 2001
ok, rc1 depends on rc2, so rc2 is started before rc1.
now, just start rc1 :
$ rc.d/rc1 start
Starting rc1.
rc1
oops, rc2 isn't started. too bad.
Cyrille.
--
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