You probably want the daemon to listen on some port with IO::Socket::UNIX or IO::Socket::INET. If you want to get modern, have POE do the heavy lifting. Its cookbook has examples which would probably take little work to adapt to your requirements.

You can't really have a daemon watch for keyboard activity. A daemon has no controlling terminal, so whose keystrokes should it watch? The point of a daemon is that whoever wants to use it should connect in a known way. It's up to the client to produce the socket message on an event. That way the daemon doesn't need to know anything about the client.

After Compline,
Zaxo


In reply to Re: simple IPC needed by Zaxo
in thread simple IPC needed by redss

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.