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/*
* $Id: timer.h,v 1.1.1.1 2005/06/13 16:47:47 bogdan_iancu Exp $
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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:
* --------
* 2003-09-12 timer_link.tg exists only if EXTRA_DEBUG (andrei)
* 2004-02-13 timer_link.payload removed (bogdan)
*/
#ifndef _TIMER_H
#define _TIMER_H
#include "lock.h"
/* timer timestamp value indicating a timer has been
deactivated and shall not be executed
*/
#define TIMER_DELETED 1
/* identifiers of timer lists;*/
/* fixed-timer retransmission lists (benefit: fixed timer$
length allows for appending new items to the list as$
opposed to inserting them which is costly */
enum lists
{
FR_TIMER_LIST, FR_INV_TIMER_LIST,
WT_TIMER_LIST,
DELETE_LIST,
RT_T1_TO_1, RT_T1_TO_2, RT_T1_TO_3, RT_T2,
NR_OF_TIMER_LISTS
};
/* all you need to put a cell in a timer list
links to neighbors and timer value */
typedef struct timer_link
{
struct timer_link *next_tl;
struct timer_link *prev_tl;
volatile unsigned int time_out;
struct timer *timer_list;
#ifdef EXTRA_DEBUG
enum timer_groups tg;
#endif
}timer_link_type ;
/* timer list: includes head, tail and protection semaphore */
typedef struct timer
{
struct timer_link first_tl;
struct timer_link last_tl;
ser_lock_t* mutex;
enum lists id;
} timer_type;
/* transaction table */
struct timer_table
{
/* table of timer lists */
struct timer timers[ NR_OF_TIMER_LISTS ];
};
extern int timer_group[NR_OF_TIMER_LISTS];
extern unsigned int timer_id2timeout[NR_OF_TIMER_LISTS];
struct timer_table * tm_init_timers();
void unlink_timer_lists();
void free_timer_table();
void init_timer_list( enum lists list_id);
void reset_timer_list( enum lists list_id);
/*void remove_timer_unsafe( struct timer_link* tl ) ;
void add_timer_unsafe( struct timer*, struct timer_link*, unsigned int);
struct timer_link *check_and_split_time_list( struct timer*, int);
*/
void reset_timer( struct timer_link* tl );
/* determine timer length and put on a correct timer list */
void set_timer( struct timer_link *new_tl, enum lists list_id, unsigned int* ext_timeout );
/* similar to set_timer, except it allows only one-time
timer setting and all later attempts are ignored */
void set_1timer( struct timer_link *new_tl, enum lists list_id, unsigned int* ext_timeout );
/*void unlink_timers( struct cell *t );*/
void timer_routine(unsigned int, void*);
struct timer_table *get_timertable();
#endif
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