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ul_callback.h
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ul_callback.h
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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*! \file
* \brief USRLOC - Module callbacks
* \ingroup usrloc
*/
#ifndef _UL_CALLBACKS_H
#define _UL_CALLBACKS_H
#include "../../core/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)
/*! \brief callback function prototype */
typedef void (ul_cb) (struct ucontact *c, int type, void *param);
/*! \brief register callback function prototype */
typedef int (*register_ulcb_t)( int cb_types, ul_cb f, void *param);
struct ul_callback {
int id; /*!< id of this callback - useless */
int types; /*!< types of events that trigger the callback*/
ul_cb* callback; /*!< callback function */
void *param; /*!< param to be passed to callback function */
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);
/*! \brief register a callback for several types of events */
int register_ulcb( int types, ul_cb f, void *param );
/*! \brief run all transaction callbacks for an event type */
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