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/*
* This file is part of the Nice GLib ICE library.
*
* (C) 2006-2009 Collabora Ltd.
* Contact: Youness Alaoui
* (C) 2006-2009 Nokia Corporation. All rights reserved.
* Contact: Kai Vehmanen
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Nice GLib ICE library.
*
* The Initial Developers of the Original Code are Collabora Ltd and Nokia
* Corporation. All Rights Reserved.
*
* Contributors:
* Dafydd Harries, Collabora Ltd.
* Youness Alaoui, Collabora Ltd.
* Kai Vehmanen, Nokia
*
* Alternatively, the contents of this file may be used under the terms of the
* the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
* case the provisions of LGPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of the
* LGPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the LGPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the LGPL.
*/
#ifndef _NICE_CONNCHECK_H
#define _NICE_CONNCHECK_H
/* note: this is a private header to libnice */
#include "agent.h"
#include "stream.h"
#include "stun/stunagent.h"
#include "stun/usages/timer.h"
#define NICE_CANDIDATE_PAIR_MAX_FOUNDATION NICE_CANDIDATE_MAX_FOUNDATION*2
typedef enum
{
NICE_CHECK_WAITING = 1, /**< waiting to be scheduled */
NICE_CHECK_IN_PROGRESS, /**< conn. checks started */
NICE_CHECK_SUCCEEDED, /**< conn. succesfully checked */
NICE_CHECK_FAILED, /**< no connectivity, retransmissions ceased */
NICE_CHECK_FROZEN, /**< waiting to be scheduled to WAITING */
NICE_CHECK_CANCELLED, /**< check cancelled */
NICE_CHECK_DISCOVERED /**< a valid candidate pair not on check list */
} NiceCheckState;
typedef struct _CandidateCheckPair CandidateCheckPair;
struct _CandidateCheckPair
{
NiceAgent *agent; /* back pointer to owner */
guint stream_id;
guint component_id;
NiceCandidate *local;
NiceCandidate *remote;
gchar foundation[NICE_CANDIDATE_PAIR_MAX_FOUNDATION];
NiceCheckState state;
gboolean nominated;
gboolean controlling;
gboolean timer_restarted;
guint64 priority;
GTimeVal next_tick; /* next tick timestamp */
StunTimer timer;
uint8_t stun_buffer[STUN_MAX_MESSAGE_SIZE];
StunMessage stun_message;
};
int conn_check_add_for_candidate (NiceAgent *agent, guint stream_id, Component *component, NiceCandidate *remote);
void conn_check_free_item (gpointer data, gpointer user_data);
void conn_check_free (NiceAgent *agent);
gboolean conn_check_schedule_next (NiceAgent *agent);
int conn_check_send (NiceAgent *agent, CandidateCheckPair *pair);
gboolean conn_check_prune_stream (NiceAgent *agent, Stream *stream);
gboolean conn_check_handle_inbound_stun (NiceAgent *agent, Stream *stream, Component *component, NiceSocket *udp_socket, const NiceAddress *from, gchar *buf, guint len);
gint conn_check_compare (const CandidateCheckPair *a, const CandidateCheckPair *b);
void conn_check_remote_candidates_set(NiceAgent *agent);
#endif /*_NICE_CONNCHECK_H */
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