One approach (based on universal.c): 

#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>

XS(XS_Package_sub_name)
{
    ...[ Get arguments from Perl stack ]...

    rv = sub_name(arg);

    ...[ Return values on Perl stack ]...
}

int main() {
    static const char file[] = __FILE__;

    ...

    newXS("Package::sub_name, XS_Package_sub_name, file);

    ...
}

[download]

The following are equivalent: 

newXS("Package::sub_name, XS_Package_sub_name, file);
newXSproto("Package::sub_name, XS_Package_sub_name, file, NULL);
newXS_flags("Package::sub_name, XS_Package_sub_name, file, NULL, 0);

[download]

By taking this approach, you have to do everything XS would do for you manually. You will probably have a simpler time handling the arguments if you went the route of an XS module. If you do create an XS module, see "Using Perl modules, which themselves use C libraries, from your C program" in perlembed for how to load it up.

In reply to Re: Call a C function from Perl used from C by ikegami
in thread Call a C function from Perl used from C by nice

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