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1/* msi_initiation.h
2*
3* Has function for session initiation along with session description.
4* It follows the Tox API ( http://wiki.tox.im/index.php/Messaging_Protocol ). !Red!
5*
6*
7* Copyright (C) 2013 Tox project All Rights Reserved.
8*
9* This file is part of Tox.
10*
11* Tox is free software: you can redistribute it and/or modify
12* it under the terms of the GNU General Public License as published by
13* the Free Software Foundation, either version 3 of the License, or
14* (at your option) any later version.
15*
16* Tox is distributed in the hope that it will be useful,
17* but WITHOUT ANY WARRANTY; without even the implied warranty of
18* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19* GNU General Public License for more details.
20*
21* You should have received a copy of the GNU General Public License
22* along with Tox. If not, see <http://www.gnu.org/licenses/>.
23*
24*/
25
26
27#ifndef _MSI_IMPL_H_
28#define _MSI_IMPL_H_
29
30#include <inttypes.h>
31#include "tox.h"
32#include <pthread.h>
33
34#define MCBTYPE void
35#define MCBARGS void* _arg
36#define MCALLBACK MCBTYPE(*callback)(void* _arg)
37
38#define MSI_PACKET 69
39
40#define CT_AUDIO_HEADER_VALUE "AUDIO"
41#define CT_VIDEO_HEADER_VALUE "VIDEO"
42
43/* define size for call_id */
44#define _CALL_ID_LEN 12
45
46typedef enum {
47 type_audio = 1,
48 type_video,
49} call_type;
50
51typedef enum {
52 call_inviting, /* when sending call invite */
53 call_starting, /* when getting call invite */
54 call_active,
55 call_hold
56
57} call_state;
58
59typedef int crypto_key;
60
61typedef struct msi_call_s { /* Call info structure */
62 call_state _state;
63 call_type _type_local;
64 call_type* _type_peer; /* Support for conference starts with this */
65 uint8_t _id[_CALL_ID_LEN]; /* Random value identifying the call */
66 crypto_key _key; /* What is the type again? */
67 uint16_t _participants; /* Number of participants */
68 uint32_t _timeoutst; /* Time of the timeout for some action to end; 0 if infinite */
69 int _outgoing_timer_id; /* Timer id */
70
71} msi_call_t;
72
73typedef struct msi_session_s {
74 pthread_mutex_t _mutex;
75
76 crypto_key _key; /* The key */
77
78 /* Call information/handler. ( Maybe only information? ) */
79 msi_call_t* _call;
80
81 /* Storage for message receiving */
82 struct msi_msg_s* _oldest_msg;
83 struct msi_msg_s* _last_msg; /* tail */
84
85 /*int _friend_id;*/
86 tox_IP_Port _friend_id;
87
88 int _last_error_id; /* Determine the last error */
89 const uint8_t* _last_error_str;
90
91 const uint8_t* _user_agent;
92
93 void* _agent_handler; /* Pointer to an object that is handling msi */
94 void* _core_handler; /* Pointer to networking core or to anything that
95 * should handle interaction with core/networking
96 */
97 void* _event_handler; /* Pointer to an object which handles the events */
98
99 uint32_t _frequ;
100 uint32_t _call_timeout; /* Time of the timeout for some action to end; 0 if infinite */
101} msi_session_t;
102
103
104
105msi_session_t* msi_init_session ( void* _core_handler, const uint8_t* _user_agent );
106int msi_terminate_session ( msi_session_t* _session );
107
108pthread_t msi_start_main_loop ( msi_session_t* _session, uint32_t _frequms );
109
110/* Registering callbacks */
111
112/*void msi_register_callback_send(int (*callback) ( int, uint8_t*, uint32_t ) );*/
113void msi_register_callback_send ( int ( *callback ) ( void* _core_handler, tox_IP_Port, uint8_t*, uint32_t ) );
114
115/* Callbacks that handle the states */
116void msi_register_callback_call_started ( MCALLBACK );
117void msi_register_callback_call_canceled ( MCALLBACK );
118void msi_register_callback_call_rejected ( MCALLBACK );
119void msi_register_callback_call_ended ( MCALLBACK );
120
121void msi_register_callback_recv_invite ( MCALLBACK );
122void msi_register_callback_recv_ringing ( MCALLBACK );
123void msi_register_callback_recv_starting ( MCALLBACK );
124void msi_register_callback_recv_ending ( MCALLBACK );
125void msi_register_callback_recv_error ( MCALLBACK );
126
127void msi_register_callback_requ_timeout ( MCALLBACK );
128/* -------- */
129
130
131/* Function handling receiving from core */
132/*static int msi_handlepacket ( tox_IP_Port ip_port, uint8_t* _data, uint16_t _lenght ); */
133
134/* functions describing the usage of msi */
135int msi_invite ( msi_session_t* _session, call_type _call_type, uint32_t _timeoutms );
136int msi_hangup ( msi_session_t* _session );
137
138int msi_answer ( msi_session_t* _session, call_type _call_type );
139int msi_cancel ( msi_session_t* _session );
140int msi_reject ( msi_session_t* _session );
141
142int msi_send_msg ( msi_session_t* _session, struct msi_msg_s* _msg );
143void msi_store_msg ( msi_session_t* _session, struct msi_msg_s* _msg );
144
145#endif /* _MSI_IMPL_H_ */