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

#include "ppport.h"


CV* callback_ref;
int runCallback(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
registCallback(cb)
    CV* cb;
    PROTOTYPE: $
    PPCODE:
        callback_ref = cb;


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