hslot.h

用来作为linux中SIP SERVER,完成VOIP网络电话中服务器的功能

/* 
 * $Id: hslot.h,v 1.5 2004/08/24 09:00:46 janakj Exp $ 
 *
 * Usrloc hash table collision slot
 *
 * Copyright (C) 2001-2003 FhG Fokus
 *
 * This file is part of ser, a free SIP server.
 *
 * ser 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
 *
 * For a license to use the ser software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    [e-mail]
 *
 * ser 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
 */


#ifndef HSLOT_H
#define HSLOT_H

#include "udomain.h"
#include "urecord.h"


struct udomain;
struct urecord;


typedef struct hslot {
	int n;                  /* Number of elements in the collision slot */
	struct urecord* first;  /* First element in the list */
	struct urecord* last;   /* Last element in the list */
	struct udomain* d;      /* Domain we belong to */
} hslot_t;


/*
 * Initialize slot structure
 */
int init_slot(struct udomain* _d, hslot_t* _s);


/*
 * Deinitialize given slot structure
 */
void deinit_slot(hslot_t* _s);


/*
 * Add an element to slot linked list
 */
void slot_add(hslot_t* _s, struct urecord* _r);


/*
 * Remove an element from slot linked list
 */
void slot_rem(hslot_t* _s, struct urecord* _r);


#endif /* HSLOT_H */