modules_k/usrloc/ul_callback.h

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/*
 * $Id$
 *
 * Copyright (C) 2001-2003 FhG Fokus
 *
 * 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
 *
 * History:
 * --------
 *  2004-03-16  created (bogdan)
 */

#ifndef _UL_CALLBACKS_H
#define _UL_CALLBACKS_H

#include "../../dprint.h"

/* forward declaration for ucontact_t */
struct ucontact;

#define UL_CONTACT_INSERT      (1<<0)
#define UL_CONTACT_UPDATE      (1<<1)
#define UL_CONTACT_DELETE      (1<<2)
#define UL_CONTACT_EXPIRE      (1<<3)
#define ULCB_MAX               ((1<<4)-1)

typedef void (ul_cb) (struct ucontact *c, int type, void *param);
typedef int (*register_ulcb_t)( int cb_types, ul_cb f, void *param);


struct ul_callback {
        int id;                      
        int types;                   
        ul_cb* callback;             
        void *param;                 
        struct ul_callback* next;
};

struct ulcb_head_list {
        struct ul_callback *first;
        int reg_types;
};


extern struct ulcb_head_list*  ulcb_list;


#define exists_ulcb_type(_types_) \
        ( (ulcb_list->reg_types)|(_types_) )


int init_ulcb_list(void);

void destroy_ulcb_list(void);


int register_ulcb( int types, ul_cb f, void *param );

static inline void run_ul_callbacks( int type , struct ucontact *c)
{
        struct ul_callback *cbp;

        for (cbp=ulcb_list->first; cbp; cbp=cbp->next)  {
                if(cbp->types&type) {
                        LM_DBG("contact=%p, callback type %d/%d, id %d entered\n",
                                c, type, cbp->types, cbp->id );
                        cbp->callback( c, type, cbp->param );
                }
        }
}



#endif