I've known various people who have implemented various systems like this. My main suggestion would be that instead of using named pipes, attempt to listen to a port. if you can, start the daemon; if you can't that means the daemon is already running and you should communicate with it (via that port).

This not only provides an easy way to deal with the "it died horribly and left the pipe file around" type problems (because if the process dies it won't be bound to the port anymore) but also allows you to do stuff like ... make HTTP your communication protocol. that way any HTTP client library can be used to talk to your server.

In reply to Re: Prototype - Command line, controllable, media player by hossman
in thread Prototype - Command line, controllable, media player by Kirsle

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.