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From: "Majenko Technologies (matt AT majenko DOT co DOT uk) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Tue, 24 Sep 2019 20:16:58 +0100
Message-ID: <CAPp8_DocKQiqSwY2FcGa58Q-0nwcbQrv6_K+id4090L2N0Gm9g@mail.gmail.com>
Subject: Re: [geda-user] gschem interaction from external processes
To: "Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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So I'd like to migrate from gschem to lepton, but that would mean me
re-implementing the --control-fd=3Dstdin facility that has just been
implemented in gschem.  You mention that I can do things in "scheme".  I
have no frame of reference for what "scheme" is, so I'd appreciate a couple
of pointers for how I'd go about setting up some form of IPC (preferably on
stdin, since that is what my system is geared towards) for remote control
of page saving and reverting.

Any pointers?

On Mon, Sep 2, 2019 at 6:51 PM Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via
geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

> On Mon, Sep 02, 2019 at 05:09:39PM +0100, Majenko Technologies (
> matt AT majenko DOT co DOT uk) [via geda-user AT delorie DOT com] wrote:
> > For PCB there is no issue. Everything I need is available through
> --listen
> > and sending actions through stdin.  That's absolutely great and a real
> > godsend. I'm also happy with how gschem is working with my hack (for
> > certain values of "happy"). I can tolerate the odd untitled file fallin=
g
> > out in random places - they're easy enough to clean up. It's not perfec=
t,
> > but it "works" at the moment.  It's a simple enough change that shouldn=
't
> > impact any upstream updates, and I'm happy to pull changes and recompil=
e
> my
> > own version locally (my version of PCB, incidentally, has many extra
> > changes in it that I would love to one day clean up and push up to the
> main
> > repo, but I did them so long ago and can't remember what I did, and the=
y
> > break the file format by adding extra parameters to some stanzas, so th=
at
> > won't be happening...)
> >
> > But if something more generic and flexible should come along to allow m=
e
> > better interaction with a running gschem process, then I would gladly
> adopt
> > it. Then I could even go public with my project wrapping program since =
it
> > won't rely on a specially compiled version of gschem...
>
> Again, and returning to your first post, you could use the Scheme
> function `sigaction', installing a handler for it, which could do
> the job, instead of hard working on the C side.
>
> --
>   Vladimir
>
> (=CE=BB)=CE=B5=CF=80=CF=84=CF=8C=CE=BD EDA =E2=80=94 https://github.com/l=
epton-eda
>


--=20
*Matt Jenkins*
Majenko Technologies

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<div dir=3D"ltr">So I&#39;d like to migrate=C2=A0from gschem to lepton, but=
 that would mean me re-implementing the --control-fd=3Dstdin facility that =
has just been implemented in gschem.=C2=A0 You mention that I can do things=
 in &quot;scheme&quot;.=C2=A0 I have no frame of reference for what &quot;s=
cheme&quot; is, so I&#39;d appreciate a couple of pointers for how I&#39;d =
go about setting up some form of IPC (preferably on stdin, since that is wh=
at my system is geared towards) for remote control of page saving and rever=
ting.<div><br></div><div>Any pointers?</div></div><br><div class=3D"gmail_q=
uote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Sep 2, 2019 at 6:51 PM =
Vladimir Zhbanov (<a href=3D"mailto:vzhbanov AT gmail DOT com">vzhbanov AT gmail DOT com<=
/a>) [via <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a=
>] &lt;<a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Mon=
, Sep 02, 2019 at 05:09:39PM +0100, Majenko Technologies (<a href=3D"mailto=
:matt AT majenko DOT co DOT uk" target=3D"_blank">matt AT majenko DOT co DOT uk</a>) [via <a href=
=3D"mailto:geda-user AT delorie DOT com" target=3D"_blank">geda-user AT delorie DOT com</=
a>] wrote:<br>
&gt; For PCB there is no issue. Everything I need is available through --li=
sten<br>
&gt; and sending actions through stdin.=C2=A0 That&#39;s absolutely great a=
nd a real<br>
&gt; godsend. I&#39;m also happy with how gschem is working with my hack (f=
or<br>
&gt; certain values of &quot;happy&quot;). I can tolerate the odd untitled =
file falling<br>
&gt; out in random places - they&#39;re easy enough to clean up. It&#39;s n=
ot perfect,<br>
&gt; but it &quot;works&quot; at the moment.=C2=A0 It&#39;s a simple enough=
 change that shouldn&#39;t<br>
&gt; impact any upstream updates, and I&#39;m happy to pull changes and rec=
ompile my<br>
&gt; own version locally (my version of PCB, incidentally, has many extra<b=
r>
&gt; changes in it that I would love to one day clean up and push up to the=
 main<br>
&gt; repo, but I did them so long ago and can&#39;t remember what I did, an=
d they<br>
&gt; break the file format by adding extra parameters to some stanzas, so t=
hat<br>
&gt; won&#39;t be happening...)<br>
&gt; <br>
&gt; But if something more generic and flexible should come along to allow =
me<br>
&gt; better interaction with a running gschem process, then I would gladly =
adopt<br>
&gt; it. Then I could even go public with my project wrapping program since=
 it<br>
&gt; won&#39;t rely on a specially compiled version of gschem...<br>
<br>
Again, and returning to your first post, you could use the Scheme<br>
function `sigaction&#39;, installing a handler for it, which could do<br>
the job, instead of hard working on the C side.<br>
<br>
-- <br>
=C2=A0 Vladimir<br>
<br>
(=CE=BB)=CE=B5=CF=80=CF=84=CF=8C=CE=BD EDA =E2=80=94 <a href=3D"https://git=
hub.com/lepton-eda" rel=3D"noreferrer" target=3D"_blank">https://github.com=
/lepton-eda</a><br>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><div dir=3D"ltr"><b>Matt Jenkins</b><div>Majenko=
 Technologies</div><div><br></div></div></div>

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