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Re: [PATCH] Obtain number of ports in proc and libps


From: olafBuddenhagen
Subject: Re: [PATCH] Obtain number of ports in proc and libps
Date: Mon, 13 Sep 2010 21:26:34 +0200
User-agent: Mutt/1.5.20 (2009-06-14)

Hi,

On Sat, Sep 11, 2010 at 12:51:07AM +0200, Samuel Thibault wrote:
> address@hidden, le Fri 10 Sep 2010 02:31:25 +0200, a écrit :
> > On Thu, Sep 09, 2010 at 02:03:28AM +0200, Samuel Thibault wrote:

> > > Or put another way, I'm really not at ease adding an RPC just for
> > > this kind of information, because later on we'll probably want
> > > some other information, and then another, etc.
> > 
> > I'm not sure why you consider this a problem?...
> 
> Bloat.

Indeed, that's a valid concern, and one I care about deeply myself.
However, it seems to me that in this case adding specific RPCs is
actually the approach adding the *least* bloat...

> > *If* ten year down the road we indeed end up with half a dozen
> > miscallaneous info queries, we can *still* replace them by a new RPC
> > covering all of it...
> 
> But still have to keep the old calls for old clients.

For a transitional period, yes.

Compatibility interfaces are not pretty... But they are pretty much
inevitable when creating any complex software systems. It's just
something we have to accept.

> > Also note that there is precedenct for extending the proc info query
> > by adding new RPCs.
> 
> Ok, but I guess it wasn't just for _one_ piece information.

It is.

-antrik-



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