To append somewhat to what starbolin noted and to more directly answer your questions (though I mostly aggree, and will partially re-iterate what starbolin has already said:

1) You can manipulate the Perl stack anywhere you want, really; as long as you do it right.
2) I would aggree with starbolin in that this design might not be the greatest. If you really want this module to be in XS, I would try to stick to a couple philosophies I follow (take it as a grain of salt, though): white your XS like you would write your Perl. In this case, you wouldn't want to write a PP module that would impicitly push onto a list to be returned so that another routine would be able to return it. Although it would work, it would be confusing and tough to debug and/or modify at a future date.

Everything considered, it is a little hard to say what the 'right' way to do it would be without a little more knowledge on the problem scope. Perhaps dropping some psudo code as a comment might better explain the module and what you are trying to do with it, therefore allowing for better analysis. Otherwise, I hope this addendum helps out a little and good luck with your module!

ha||ta

In reply to Re: XS design question by wazzuteke
in thread XS design question by DrWhy

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.