* Presence Agent, domain support
 * $Id$
 * 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:
 *    info@iptel.org
 * ser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * 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
  * History:
  * --------
  *  2003-03-11  converted to the new locking scheme: locking.h  (andrei)

#ifndef PDOMAIN_H
#define PDOMAIN_H

#include "hslot.h"
#include "presentity.h"
#include "../../locking.h"
#include "../../str.h"

typedef int (*register_watcher_t)(str* _f, str* _t, void* _cb, void* _data);
typedef int (*unregister_watcher_t)(str* _f, str* _t, void* _cb, void* _data);

typedef struct pdomain {
	str* name;
	int size;                   /* Hash table size */
	struct presentity* first;   /* First presentity in the domain */
	struct presentity* last;    /* Last presentity in the domain */
	struct hslot* table;        /* Hash table for fast lookup */
	gen_lock_t lock;            /* Lock for the domain */
	int users;                  /* Number of registered presentities */
	int expired;                /* Number of expired presentities */
	register_watcher_t reg;     /* Register watcher function */
	unregister_watcher_t unreg; /* Unregister watcher function */
} pdomain_t;

 * Create a new domain structure
 * _n is pointer to str representing
 * name of the domain, the string is
 * not copied, it should point to str
 * structure stored in domain list
 * _s is hash table size
int new_pdomain(str* _n, int _s, pdomain_t** _d, register_watcher_t _reg, unregister_watcher_t _unreg);

 * Free all memory allocated for
 * the domain
void free_pdomain(pdomain_t* _d);

 * Timer handler for given domain
int timer_pdomain(pdomain_t* _d);

 * Get lock
void lock_pdomain(pdomain_t* _d);

 * Release lock
void unlock_pdomain(pdomain_t* _d);

 * Find a presentity in domain acording to UID (!)
int find_presentity_uid(pdomain_t* _d, str* uid, struct presentity** _p);

 * Add a presentity to domain
void add_presentity(pdomain_t* _d, struct presentity* _p);

 * Remove a presentity from domain
void remove_presentity(pdomain_t* _d, struct presentity* _p);

#endif /* PDOMAIN_H */