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<H1>[MUD-Dev] Re: lurker emerges</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Subject</em>: [MUD-Dev] Re: lurker emerges </LI>
<LI><em>From</em>: J C Lawrence <<A HREF="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</A>></LI>
<LI><em>Date</em>: Wed, 16 Sep 1998 17:30:39 -0700</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
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<PRE>
On Sun, 9 Aug 1998 23:28:17 -0600
Chris Gray<cg#ami-cg,GraySage.Edmonton.AB.CA> wrote:
> I'm bumping into this right now with my simple MUD client. I call
> out to an external editor for editing stuff, but the client needs
> to stay active while that editing is going on. So, to know when
> the editor process is done, I need to set up a SIGCHLD handler and
> catch the process exit. However, that is a signal, which if I'm
> not careful can cause error reports from 'read's on user input and
> on read/writes to the socket to the server. Ick. Give me true
> asynchronous I/O (like on the Amiga) anyday!
A common approach:
fork a child.
Have the child fork the editor.
Have the child catch the SIGCHILD from the editor.
Have the child send a normal IPC message (pipe, whatever) to the
parent before terminating silently (turn off SIGCHILD).
Have the parent respond to the message whenever it wants.
True, its nasty, ugly, and brutish as well as being inelegant and
resource expensive. It also works.
--
J C Lawrence Internet: claw#null,net
(Contractor) Internet: coder#ibm,net
---------(*) Internet: claw#under,engr.sgi.com
...Honourary Member of Clan McFud -- Teamer's Avenging Monolith...
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<LI><STRONG><A NAME="00612" HREF="msg00612.html">[MUD-Dev] Re: lurker emerges</A></STRONG>
<UL><LI><EM>From:</EM> Chris Gray <cg#ami-cg,GraySage.Edmonton.AB.CA></LI></UL></LI>
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>[MUD-Dev] Re: lurker emerges</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<LI><strong><A NAME="00603" HREF="msg00603.html">[MUD-Dev] Re: lurker emerges</A></strong>,
T. Alexander Popiel <a href="mailto:popiel#snugharbor,com">popiel#snugharbor,com</a>, Mon 10 Aug 1998, 02:19 GMT
</LI>
</ul>
<LI><strong><A NAME="00602" HREF="msg00602.html">[MUD-Dev] Re: lurker emerges</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Mon 10 Aug 1998, 02:18 GMT
</LI>
<LI><strong><A NAME="00612" HREF="msg00612.html">[MUD-Dev] Re: lurker emerges</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Mon 10 Aug 1998, 05:28 GMT
<UL>
<LI><strong><A NAME="00614" HREF="msg00614.html">[MUD-Dev] Re: lurker emerges</A></strong>,
Vadim Tkachenko <a href="mailto:vt#freehold,crocodile.org">vt#freehold,crocodile.org</a>, Mon 10 Aug 1998, 05:57 GMT
</LI>
<LI><strong><A NAME="01055" HREF="msg01055.html">[MUD-Dev] Re: lurker emerges</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Thu 17 Sep 1998, 00:57 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="01058" HREF="msg01058.html">[MUD-Dev] Re: lurker emerges</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Thu 17 Sep 1998, 02:19 GMT
<UL>
<LI><strong><A NAME="01059" HREF="msg01059.html">[MUD-Dev] Re: lurker emerges</A></strong>,
J C Lawrence <a href="mailto:claw#kanga,nu">claw#kanga,nu</a>, Thu 17 Sep 1998, 06:32 GMT
</LI>
</UL>
</LI>
</ul>
</LI>
<LI><strong><A NAME="00582" HREF="msg00582.html">[MUD-Dev] Fw: lurker emerges</A></strong>,
James Wilson <a href="mailto:jwilson#rochester,rr.com">jwilson#rochester,rr.com</a>, Sun 09 Aug 1998, 15:26 GMT
<UL>
<LI><strong><A NAME="00583" HREF="msg00583.html">[MUD-Dev] Re: Fw: lurker emerges</A></strong>,
T. Alexander Popiel <a href="mailto:popiel#snugharbor,com">popiel#snugharbor,com</a>, Sun 09 Aug 1998, 15:57 GMT
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</UL>
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</UL></BLOCKQUOTE>
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