#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"

# define PERL_NO_GET_CONTEXT

int runCallback(CV* callback_ref, const char* param)
{
    int count;
    int answer;

    dSP;

    ENTER;
    SAVETMPS;

    PUSHMARK(SP);
    XPUSHs(sv_2mortal(newSVpv(param, 0)));
    PUTBACK;

    count = call_sv((SV*)callback_ref, G_SCALAR);
    SPAGAIN;

    if (count != 1)
    croak("Uncknown return value format. Returned %d params instid 1", count);
    answer = POPi;

    FREETMPS;
    LEAVE;

    return answer;
}


MODULE = Callback               PACKAGE = Callback


void
runCallback(callback_ref, param)
    CV*         callback_ref;
    const char* param;
    PROTOTYPE: $$
    PPCODE:
        XPUSHs(sv_2mortal(  newSViv(runCallback(callback_ref, param)) ));