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kamailio/modules/dispatcher/ds_ht.h

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/**
*
* Copyright (C) 2010 Daniel-Constantin Mierla (asipto.com)
*
* 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
*/
#ifndef _DS_HT_H_
#define _DS_HT_H_
#include <time.h>
#include "../../str.h"
#include "../../locking.h"
#define DS_LOAD_INIT 0
#define DS_LOAD_CONFIRMED 1
typedef struct _ds_cell
{
unsigned int cellid; /* item hash id */
str callid; /* sip call-id */
str duid; /* destination unique id (duid attribute) */
int dset; /* destination set */
int state; /* state */
time_t expire; /* expiration of the item */
time_t initexpire; /* expiration in initial state of the item */
struct _ds_cell *prev;
struct _ds_cell *next;
} ds_cell_t;
typedef struct _ds_entry
{
unsigned int esize;
ds_cell_t *first;
gen_lock_t lock;
} ds_entry_t;
typedef struct _ds_ht
{
unsigned int htexpire;
unsigned int htinitexpire;
unsigned int htsize;
ds_entry_t *entries;
struct _ds_ht *next;
} ds_ht_t;
ds_ht_t *ds_ht_init(unsigned int htsize, int expire, int initexpire);
int ds_ht_destroy(ds_ht_t *dsht);
int ds_add_cell(ds_ht_t *dsht, str *cid, str *did, int dset);
int ds_del_cell(ds_ht_t *dsht, str *cid);
ds_cell_t* ds_get_cell(ds_ht_t *dsht, str *cid);
int ds_unlock_cell(ds_ht_t *dsht, str *cid);
int ds_ht_dbg(ds_ht_t *dsht);
int ds_cell_free(ds_cell_t *cell);
int ds_ht_clear_slots(ds_ht_t *dsht);
#endif