dlg_hash.h

来自「性能优秀的SIP Proxy」· C头文件 代码 · 共 105 行

/*
 * $Id: dlg_hash.h,v 1.2 2006/07/06 10:13:36 bogdan_iancu Exp $
 *
 * Copyright (C) 2006 Voice System SRL
 *
 * 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:
 * --------
 * 2006-04-14  initial version (bogdan)
 */


#ifndef _DIALOG_DLG_HASH_H_
#define _DIALOG_DLG_HASH_H_

#include <stdio.h>

#include "../../locking.h"
#include "dlg_timer.h"
#include "dlg_cb.h"


#define DLG_STATE_UNCONFIRMED  1
#define DLG_STATE_EARLY        2
#define DLG_STATE_CONFIRMED    3
#define DLG_STATE_DELETED      4


struct dlg_cell
{
	volatile int         ref;
	struct dlg_cell      *next;
	struct dlg_cell      *prev;
	unsigned int         h_id;
	unsigned int         h_entry;
	int                  state;
	int                  lifetime;
	struct dlg_tl        tl;
	str                  callid;
	str                  from_uri;
	str                  to_uri;
	str                  from_tag;
	str                  to_tag;
	struct dlg_head_cbl  cbs;
};


struct dlg_entry
{
	struct dlg_cell    *first;
	struct dlg_cell    *last;
	unsigned int        next_id;
	gen_lock_set_t     *lock_set;
	unsigned int       lock_idx;
};



struct dlg_table
{
	unsigned int       size;
	struct dlg_entry   *entries;
	unsigned int       locks_no;
	gen_lock_set_t     *locks;
};




int init_dlg_table(unsigned int size);

void destroy_dlg_table();

struct dlg_cell* build_new_dlg(str *callid, str *from_uri,
		str *to_uri, str *from_tag);

int dlg_set_totag(struct dlg_cell *dlg, str *tag);

struct dlg_cell* lookup_dlg( unsigned int h_entry, unsigned int h_id);

void link_dlg(struct dlg_cell *dlg, int n);

void ref_dlg(struct dlg_cell *dlg);

void unref_dlg(struct dlg_cell *dlg, int n, int deleted);

int fifo_print_dlgs(FILE *fifo, char *response_file );

#endif