perlvdb_oohelpers.c

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/* 
 * $Id: perlvdb_oohelpers.c 770 2007-01-22 10:16:34Z bastian $
 *
 * Perl virtual database module interface
 *
 * Copyright (C) 2007 Collax GmbH
 *                    (Bastian Friedrich <bastian.friedrich@collax.com>)
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * Kamailio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "perlvdb_oohelpers.h"

#include "../../mem/mem.h"

SV *perlvdb_perlmethod(SV *class,
             const char* method,
             SV *param1,
             SV *param2,
             SV *param3,
             SV *param4) {
   
   I32 res;
   SV *retval = NULL;
   
   dSP;
   
                  ENTER;
                            SAVETMPS;
                  
   PUSHMARK(SP);

   /* passed stack:
    * class, and optionally parameters
    */
   XPUSHs(class);

   if (param1) {
      XPUSHs(param1);
   }

   if (param2) {
      XPUSHs(param2);
   }

   if (param3) {
      XPUSHs(param3);
   }

   if (param4) {
      XPUSHs(param4);
   }

   PUTBACK;

   res = call_method(method, G_SCALAR | G_EVAL);

   SPAGAIN;

   if (res == 0) {
      retval = &PL_sv_undef;
   } else if (res == 1) {
      retval = POPs;
   } else {
      /* More than one result in Scalar context??? */
      LM_CRIT("got more than one result from scalar method!");
      while (res--) { /* Try to clean stack. This
               should never happen anyway.*/
         retval = POPs;
      }
   }

   SPAGAIN;

// if (sv_isobject(retval))
      SvREFCNT_inc(retval);

   FREETMPS;
   LEAVE;

   return retval;
}