I'm no expert on XS files either, which is why I usually let Inline::C handle that side of things ... but I don't think 'data' should be safefree()'d ... and I wish you had pointed it out sooner :-)

I got sidetracked into thinking that there must be something bodgey in the way the GD::Image objects were being created.

You could probably go a little further and not even declare and assign a value to 'data'. I think one could just as well write 
RETVAL = (GD__Image) gdImageCreateFromGdPtr(len,(void*)SvPV(imageData,
+ len));

[download]
but that's only a minor point.
It's unclear to me how 'len' gets assigned the appropriate value for when it's needed ... but it seems to happen ok.

You should probably go to http://rt.cpan.org/Public/Dist/Display.html?Name=GD and report the bug there - or at least let the author know.

Well spotted !!

Cheers,
Rob

In reply to Re^11: Segfault on second (identical) call to a sub by syphilis
in thread Segfault on second (identical) call to a sub by BrowserUk

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.