I expected the thread-ids to be different by virtue of my design. Anycase, I logged the 'current' thread-id and confirmed that the id when I get the perl-callback address (in the SWIG wrapper) is different (it must be a thread created by perl.exe) from when the perl cback is invoked (the thread I created). No surprise.

However, I got thinking about what you mean by the 'right' interpreter..if I have two interpreters then it is not clear what is the 'right' interpreter. Can you elaborate which you think is the right interpreter?

Then I decided to question the premise/info under which I went to the cloning method and did an experiment: I removed the perl_clone completely (and the related SvSHARE, sv_dup etc). Instead, when my "BGThread-equivalent" is created, I just forced a PERL_SET_CONTEXT() to the interpreter created by perl.exe

This forces the callback thread to invoke the perl sub in the same interpreter context as that created by perl.exe itself.

In my limited tests, very surprisngly for me, so far that seems to work as well as the perl_clone approach I used for almost a yr now.

I'll be testing more, but does this surprise you?

In reply to Re^6: Perl crash during perl_clone by perlmonk1729
in thread Perl crash during perl_clone by perlmonk1729

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.