rr_cb.c

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/*
 * $Id$
 *
 * Copyright (C) 2005 Voice Sistem SRL
 *
 * 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 "../../mem/mem.h"
#include "rr_cb.h"


struct rr_callback* rrcb_hl = 0;  /* head list */


void destroy_rrcb_lists(void)
{
        struct rr_callback *cbp, *cbp_tmp;

        for( cbp=rrcb_hl; cbp ; ) {
                cbp_tmp = cbp;
                cbp = cbp->next;
                pkg_free( cbp_tmp );
        }
}


int register_rrcb( rr_cb_t f, void *param )
{
        struct rr_callback *cbp;

        /* build a new callback structure */
        if (!(cbp=pkg_malloc( sizeof( struct rr_callback)))) {
                LM_ERR("no more pkg mem\n");
                return -1;
        }

        /* fill it up */
        cbp->callback = f;
        cbp->param = param;
        /* link it at the beginning of the list */
        cbp->next = rrcb_hl;
        rrcb_hl = cbp;
        /* set next id */
        if (cbp->next)
                cbp->id = cbp->next->id+1;
        else
                cbp->id = 0;

        return 0;
}


void run_rr_callbacks( struct sip_msg *req, str *rr_param )
{
        str l_param;
        struct rr_callback *cbp;

        for ( cbp=rrcb_hl ; cbp ; cbp=cbp->next ) {
                l_param = *rr_param;
                LM_DBG("callback id %d entered with <%.*s>\n",
                        cbp->id , l_param.len,l_param.s);
                cbp->callback( req, &l_param, cbp->param );
        }
}