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in reply to Re^2: About using rperl
in thread About using rperl

It would be great to see an example of how to call a sub in the shared library
I haven't seen such example of code, but I attended a talk by Will Braswell a few months ago, and asked whether it is feasible, and Will answered that it is possible. So you could have your CPU intensive nested loops or other computations in a RPerl module, and the rest in a regular Perl program. This looks very interesting to me, because it seems easier to write a RPerl module than an XS module.

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Re^4: About using rperl
by LanX (Saint) on Aug 13, 2019 at 14:42 UTC
    Please excuse my ignorance, but wouldn't this imply having two runtime environments for Perl communicating via sub calls?

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

[reply]
      I'm not sure how this would work exactly, but my understanding (I could be wrong) was that RPerl components are compiled to binaries (after a translation phase to C++) and probably don't need a specific runtime environment. So you would only need to include the proper modules in your Perlrapper.
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Re^4: About using rperl
by Anonymous Monk on Aug 14, 2019 at 02:28 UTC
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[d/l]
      Interesting, so instead of converting the Perl code to a shared library, one could convert it to a .cpp source file instead which is then included into the main Perl script using gcc and Inline::CPP ? Alternatively, write a wrapper .cpp file that links with the generated shared library by giving a libs parameter to Inline::CPP ? It would still be great if someone could present a simple working (tutorial-type) example.. :)
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[d/l]
[select]

        What?

        Inline::CPP writes xs modules for you , so you can call cpp functions from external cpp libraries without learning much xs

        It comes with "tutorial"

        RPerl converts Perl 5 source code into C++ source code

        RPerl then converts the c++ code it created from perl 5 source code, into xs module, using Inline::CPP

        There is no tutorial for explaining the RPerl way of wrapping an external library , ...GMPInteger_cpp.pm is as close to an example as you will find

        ...GMPInteger_cpp.pm is RPerl specific way of using Inline::CPP to call cpp functions from external cpp libraries ...

        Will_the_Chill has been here in a while

        Open an issue at https://github.com/wbraswell/rperl/issues and maybe negotiate :)

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