Re: new "sv status" flags and exit-tracking patch, and misc.

[Gerrit Pape <pape@smarden.org>]

On Mon, Sep 26, 2005 at 10:12:20AM +0000, Gerrit Pape wrote:
> On Mon, Sep 19, 2005 at 02:13:30PM -0500, Charles Duffy wrote:
> > Charles Duffy wrote:
> > >Attached is a patch which attempts to stick to the items we agreed on.
> > 
> > Erk -- actually, that one was a little too overreaching as well, since 
> > it changed "sv status" to provide the last exit status of finish (if 
> > curently in run) or run (if currently in finish), if that program exited 
> > with a status other than 0. Since the requested spec was that the output 
> > of "sv status" (when called without flags) not be altered... well, 
> > here's another attempt.
> 
> Hi Charles, thanks a lot for the patch.  This looks much better to me to
> work with.  I'll try to find some time soon, to review it, and integrate
> it into the next runit test version.

Hi, I haven't done this yet, sorry.  Somehow I'm reluctant to make these
changes to the command line option of the sv program, I'm afraid it gets
too complex.

I guess ./run and ./finish almost always will be scripts, more precisely
shell scripts.  runsv as of now maintains two files supervise/stat and
supervise/pid.  How about removing these files, and add a single one
containing the informations discussed here?:

./supervise/info:
<state> <want> <pid> <uptime> <runrc> <finishrc>

Shell script then can do

 set `cat ./supervise/info` ""
 state=$1
 want=$2
 pid=$3
 uptime=$4
 rrc=$5
 frc=$6

or so.

Regards, Gerrit.