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author | Christian Grothoff <christian@grothoff.org> | 2013-11-15 19:06:55 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2013-11-15 19:06:55 +0000 |
commit | dd594a4b0a7dbc57ea49f8a797a7a412e53baa53 (patch) | |
tree | 6a651b061395ebd9370cef01f14655ff50e81a66 /src/conversation/conversation_api_call.c | |
parent | 1c405f3fb76f509113526678dbe9a5736dfce394 (diff) | |
download | gnunet-dd594a4b0a7dbc57ea49f8a797a7a412e53baa53.tar.gz gnunet-dd594a4b0a7dbc57ea49f8a797a7a412e53baa53.zip |
-towards enabling call waiting in conversation -- creates FTBFS
Diffstat (limited to 'src/conversation/conversation_api_call.c')
-rw-r--r-- | src/conversation/conversation_api_call.c | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/src/conversation/conversation_api_call.c b/src/conversation/conversation_api_call.c new file mode 100644 index 000000000..a57bf1ddb --- /dev/null +++ b/src/conversation/conversation_api_call.c | |||
@@ -0,0 +1,678 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2013 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file conversation/conversation_api_call.c | ||
23 | * @brief call API to the conversation service | ||
24 | * @author Simon Dieterle | ||
25 | * @author Andreas Fuchs | ||
26 | * @author Christian Grothoff | ||
27 | */ | ||
28 | #include "platform.h" | ||
29 | #include "gnunet_conversation_service.h" | ||
30 | #include "gnunet_gnsrecord_lib.h" | ||
31 | #include "gnunet_gns_service.h" | ||
32 | #include "conversation.h" | ||
33 | |||
34 | |||
35 | /** | ||
36 | * Possible states of the phone. | ||
37 | */ | ||
38 | enum CallState | ||
39 | { | ||
40 | /** | ||
41 | * We still need to lookup the callee. | ||
42 | */ | ||
43 | CS_LOOKUP = 0, | ||
44 | |||
45 | /** | ||
46 | * The call is ringing. | ||
47 | */ | ||
48 | CS_RINGING, | ||
49 | |||
50 | /** | ||
51 | * The call is in an active conversation. | ||
52 | */ | ||
53 | CS_ACTIVE, | ||
54 | |||
55 | /** | ||
56 | * The call is in termination. | ||
57 | */ | ||
58 | CS_SHUTDOWN, | ||
59 | |||
60 | /** | ||
61 | * The call was suspended by the caller. | ||
62 | */ | ||
63 | CS_SUSPENDED_CALLER, | ||
64 | |||
65 | /** | ||
66 | * The call was suspended by the callee. | ||
67 | */ | ||
68 | CS_SUSPENDED_CALLEE, | ||
69 | |||
70 | /** | ||
71 | * The call was suspended by both caller and callee. | ||
72 | */ | ||
73 | CS_SUSPENDED_BOTH | ||
74 | }; | ||
75 | |||
76 | |||
77 | /** | ||
78 | * Handle for an outgoing call. | ||
79 | */ | ||
80 | struct GNUNET_CONVERSATION_Call | ||
81 | { | ||
82 | |||
83 | /** | ||
84 | * Our configuration. | ||
85 | */ | ||
86 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
87 | |||
88 | /** | ||
89 | * Handle to talk with CONVERSATION service. | ||
90 | */ | ||
91 | struct GNUNET_CLIENT_Connection *client; | ||
92 | |||
93 | /** | ||
94 | * Our caller identity. | ||
95 | */ | ||
96 | struct GNUNET_IDENTITY_Ego *caller_id; | ||
97 | |||
98 | /** | ||
99 | * Target callee as a GNS address/name. | ||
100 | */ | ||
101 | char *callee; | ||
102 | |||
103 | /** | ||
104 | * Our speaker. | ||
105 | */ | ||
106 | struct GNUNET_SPEAKER_Handle *speaker; | ||
107 | |||
108 | /** | ||
109 | * Our microphone. | ||
110 | */ | ||
111 | struct GNUNET_MICROPHONE_Handle *mic; | ||
112 | |||
113 | /** | ||
114 | * Function to call with events. | ||
115 | */ | ||
116 | GNUNET_CONVERSATION_CallEventHandler event_handler; | ||
117 | |||
118 | /** | ||
119 | * Closure for @e event_handler | ||
120 | */ | ||
121 | void *event_handler_cls; | ||
122 | |||
123 | /** | ||
124 | * Handle for transmitting to the CONVERSATION service. | ||
125 | */ | ||
126 | struct GNUNET_MQ_Handle *mq; | ||
127 | |||
128 | /** | ||
129 | * Connection to GNS (can be NULL). | ||
130 | */ | ||
131 | struct GNUNET_GNS_Handle *gns; | ||
132 | |||
133 | /** | ||
134 | * Active GNS lookup (or NULL). | ||
135 | */ | ||
136 | struct GNUNET_GNS_LookupRequest *gns_lookup; | ||
137 | |||
138 | /** | ||
139 | * Target phone record, only valid after the lookup is done. | ||
140 | */ | ||
141 | struct GNUNET_CONVERSATION_PhoneRecord phone_record; | ||
142 | |||
143 | /** | ||
144 | * State machine for the call. | ||
145 | */ | ||
146 | enum CallState state; | ||
147 | |||
148 | }; | ||
149 | |||
150 | |||
151 | /** | ||
152 | * The call got disconnected, reconnect to the service. | ||
153 | * | ||
154 | * @param call call to reconnect | ||
155 | */ | ||
156 | static void | ||
157 | reconnect_call (struct GNUNET_CONVERSATION_Call *call); | ||
158 | |||
159 | |||
160 | /** | ||
161 | * Process recorded audio data. | ||
162 | * | ||
163 | * @param cls closure with the `struct GNUNET_CONVERSATION_Call` | ||
164 | * @param data_size number of bytes in @a data | ||
165 | * @param data audio data to play | ||
166 | */ | ||
167 | static void | ||
168 | transmit_call_audio (void *cls, | ||
169 | size_t data_size, | ||
170 | const void *data) | ||
171 | { | ||
172 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
173 | struct GNUNET_MQ_Envelope *e; | ||
174 | struct ClientAudioMessage *am; | ||
175 | |||
176 | GNUNET_assert (CS_ACTIVE == call->state); | ||
177 | e = GNUNET_MQ_msg_extra (am, | ||
178 | data_size, | ||
179 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_AUDIO); | ||
180 | memcpy (&am[1], data, data_size); | ||
181 | GNUNET_MQ_send (call->mq, e); | ||
182 | } | ||
183 | |||
184 | |||
185 | /** | ||
186 | * We received a `struct ClientPhoneSuspendMessage` | ||
187 | * | ||
188 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
189 | * @param msg the message | ||
190 | */ | ||
191 | static void | ||
192 | handle_call_suspend (void *cls, | ||
193 | const struct GNUNET_MessageHeader *msg) | ||
194 | { | ||
195 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
196 | |||
197 | switch (call->state) | ||
198 | { | ||
199 | case CS_LOOKUP: | ||
200 | GNUNET_break (0); | ||
201 | reconnect_call (call); | ||
202 | break; | ||
203 | case CS_RINGING: | ||
204 | GNUNET_break_op (0); | ||
205 | reconnect_call (call); | ||
206 | break; | ||
207 | case CS_SUSPENDED_CALLER: | ||
208 | call->state = CS_SUSPENDED_BOTH; | ||
209 | call->event_handler (call->event_handler_cls, | ||
210 | GNUNET_CONVERSATION_EC_CALL_SUSPENDED); | ||
211 | break; | ||
212 | case CS_SUSPENDED_CALLEE: | ||
213 | case CS_SUSPENDED_BOTH: | ||
214 | GNUNET_break_op (0); | ||
215 | break; | ||
216 | case CS_ACTIVE: | ||
217 | call->state = CS_SUSPENDED_CALLEE; | ||
218 | call->event_handler (call->event_handler_cls, | ||
219 | GNUNET_CONVERSATION_EC_CALL_SUSPENDED); | ||
220 | call->speaker->disable_speaker (call->speaker->cls); | ||
221 | call->mic->disable_microphone (call->mic->cls); | ||
222 | break; | ||
223 | case CS_SHUTDOWN: | ||
224 | GNUNET_CONVERSATION_call_stop (call); | ||
225 | break; | ||
226 | } | ||
227 | } | ||
228 | |||
229 | |||
230 | /** | ||
231 | * We received a `struct ClientPhoneResumeMessage` | ||
232 | * | ||
233 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
234 | * @param msg the message | ||
235 | */ | ||
236 | static void | ||
237 | handle_call_resume (void *cls, | ||
238 | const struct GNUNET_MessageHeader *msg) | ||
239 | { | ||
240 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
241 | |||
242 | switch (call->state) | ||
243 | { | ||
244 | case CS_LOOKUP: | ||
245 | GNUNET_break (0); | ||
246 | reconnect_call (call); | ||
247 | break; | ||
248 | case CS_RINGING: | ||
249 | GNUNET_break_op (0); | ||
250 | reconnect_call (call); | ||
251 | break; | ||
252 | case CS_SUSPENDED_CALLER: | ||
253 | GNUNET_break_op (0); | ||
254 | break; | ||
255 | case CS_SUSPENDED_CALLEE: | ||
256 | call->state = CS_ACTIVE; | ||
257 | call->event_handler (call->event_handler_cls, | ||
258 | GNUNET_CONVERSATION_EC_CALL_RESUMED); | ||
259 | call->speaker->enable_speaker (call->speaker->cls); | ||
260 | call->mic->enable_microphone (call->mic->cls, | ||
261 | &transmit_call_audio, | ||
262 | call); | ||
263 | break; | ||
264 | case CS_SUSPENDED_BOTH: | ||
265 | call->state = CS_SUSPENDED_CALLER; | ||
266 | call->event_handler (call->event_handler_cls, | ||
267 | GNUNET_CONVERSATION_EC_CALL_RESUMED); | ||
268 | break; | ||
269 | case CS_ACTIVE: | ||
270 | GNUNET_break_op (0); | ||
271 | break; | ||
272 | case CS_SHUTDOWN: | ||
273 | GNUNET_CONVERSATION_call_stop (call); | ||
274 | break; | ||
275 | } | ||
276 | } | ||
277 | |||
278 | |||
279 | /** | ||
280 | * We received a `struct ClientPhonePickedupMessage` | ||
281 | * | ||
282 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
283 | * @param msg the message | ||
284 | */ | ||
285 | static void | ||
286 | handle_call_picked_up (void *cls, | ||
287 | const struct GNUNET_MessageHeader *msg) | ||
288 | { | ||
289 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
290 | |||
291 | switch (call->state) | ||
292 | { | ||
293 | case CS_LOOKUP: | ||
294 | GNUNET_break (0); | ||
295 | reconnect_call (call); | ||
296 | break; | ||
297 | case CS_RINGING: | ||
298 | call->state = CS_ACTIVE; | ||
299 | call->event_handler (call->event_handler_cls, | ||
300 | GNUNET_CONVERSATION_EC_CALL_PICKED_UP); | ||
301 | call->speaker->enable_speaker (call->speaker->cls); | ||
302 | call->mic->enable_microphone (call->mic->cls, | ||
303 | &transmit_call_audio, | ||
304 | call); | ||
305 | break; | ||
306 | case CS_SUSPENDED_CALLER: | ||
307 | case CS_SUSPENDED_CALLEE: | ||
308 | case CS_SUSPENDED_BOTH: | ||
309 | case CS_ACTIVE: | ||
310 | GNUNET_break (0); | ||
311 | reconnect_call (call); | ||
312 | break; | ||
313 | case CS_SHUTDOWN: | ||
314 | GNUNET_CONVERSATION_call_stop (call); | ||
315 | break; | ||
316 | } | ||
317 | } | ||
318 | |||
319 | |||
320 | /** | ||
321 | * We received a `struct ClientPhoneHangupMessage` | ||
322 | * | ||
323 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
324 | * @param msg the message | ||
325 | */ | ||
326 | static void | ||
327 | handle_call_hangup (void *cls, | ||
328 | const struct GNUNET_MessageHeader *msg) | ||
329 | { | ||
330 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
331 | |||
332 | switch (call->state) | ||
333 | { | ||
334 | case CS_LOOKUP: | ||
335 | GNUNET_break (0); | ||
336 | reconnect_call (call); | ||
337 | break; | ||
338 | case CS_RINGING: | ||
339 | case CS_SUSPENDED_CALLER: | ||
340 | case CS_SUSPENDED_CALLEE: | ||
341 | case CS_SUSPENDED_BOTH: | ||
342 | case CS_ACTIVE: | ||
343 | call->event_handler (call->event_handler_cls, | ||
344 | GNUNET_CONVERSATION_EC_CALL_HUNG_UP); | ||
345 | GNUNET_CONVERSATION_call_stop (call); | ||
346 | return; | ||
347 | case CS_SHUTDOWN: | ||
348 | GNUNET_CONVERSATION_call_stop (call); | ||
349 | break; | ||
350 | } | ||
351 | } | ||
352 | |||
353 | |||
354 | /** | ||
355 | * We received a `struct ClientAudioMessage` | ||
356 | * | ||
357 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
358 | * @param msg the message | ||
359 | */ | ||
360 | static void | ||
361 | handle_call_audio_message (void *cls, | ||
362 | const struct GNUNET_MessageHeader *msg) | ||
363 | { | ||
364 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
365 | const struct ClientAudioMessage *am; | ||
366 | |||
367 | am = (const struct ClientAudioMessage *) msg; | ||
368 | switch (call->state) | ||
369 | { | ||
370 | case CS_LOOKUP: | ||
371 | GNUNET_break (0); | ||
372 | reconnect_call (call); | ||
373 | break; | ||
374 | case CS_RINGING: | ||
375 | GNUNET_break (0); | ||
376 | reconnect_call (call); | ||
377 | break; | ||
378 | case CS_SUSPENDED_CALLER: | ||
379 | /* can happen: we suspended, other peer did not yet | ||
380 | learn about this. */ | ||
381 | break; | ||
382 | case CS_SUSPENDED_CALLEE: | ||
383 | case CS_SUSPENDED_BOTH: | ||
384 | /* can (rarely) also happen: other peer suspended, but mesh might | ||
385 | have had delayed data on the unreliable channel */ | ||
386 | break; | ||
387 | case CS_ACTIVE: | ||
388 | call->speaker->play (call->speaker->cls, | ||
389 | ntohs (msg->size) - sizeof (struct ClientAudioMessage), | ||
390 | &am[1]); | ||
391 | break; | ||
392 | case CS_SHUTDOWN: | ||
393 | GNUNET_CONVERSATION_call_stop (call); | ||
394 | break; | ||
395 | } | ||
396 | } | ||
397 | |||
398 | |||
399 | /** | ||
400 | * Iterator called on obtained result for a GNS lookup. | ||
401 | * | ||
402 | * @param cls closure with the `struct GNUNET_CONVERSATION_Call` | ||
403 | * @param rd_count number of records in @a rd | ||
404 | * @param rd the records in reply | ||
405 | */ | ||
406 | static void | ||
407 | handle_gns_response (void *cls, | ||
408 | uint32_t rd_count, | ||
409 | const struct GNUNET_GNSRECORD_Data *rd) | ||
410 | { | ||
411 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
412 | uint32_t i; | ||
413 | struct GNUNET_MQ_Envelope *e; | ||
414 | struct ClientCallMessage *ccm; | ||
415 | |||
416 | call->gns_lookup = NULL; | ||
417 | for (i=0;i<rd_count;i++) | ||
418 | { | ||
419 | if (GNUNET_GNSRECORD_TYPE_PHONE == rd[i].record_type) | ||
420 | { | ||
421 | if (rd[i].data_size != sizeof (struct GNUNET_CONVERSATION_PhoneRecord)) | ||
422 | { | ||
423 | GNUNET_break_op (0); | ||
424 | continue; | ||
425 | } | ||
426 | memcpy (&call->phone_record, | ||
427 | rd[i].data, | ||
428 | rd[i].data_size); | ||
429 | e = GNUNET_MQ_msg (ccm, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_CALL); | ||
430 | ccm->line = call->phone_record.line; | ||
431 | ccm->target = call->phone_record.peer; | ||
432 | ccm->caller_id = *GNUNET_IDENTITY_ego_get_private_key (call->caller_id); | ||
433 | GNUNET_MQ_send (call->mq, e); | ||
434 | call->state = CS_RINGING; | ||
435 | call->event_handler (call->event_handler_cls, | ||
436 | GNUNET_CONVERSATION_EC_CALL_RINGING); | ||
437 | return; | ||
438 | } | ||
439 | } | ||
440 | /* not found */ | ||
441 | call->event_handler (call->event_handler_cls, | ||
442 | GNUNET_CONVERSATION_EC_CALL_GNS_FAIL); | ||
443 | GNUNET_CONVERSATION_call_stop (call); | ||
444 | } | ||
445 | |||
446 | |||
447 | /** | ||
448 | * We encountered an error talking with the conversation service. | ||
449 | * | ||
450 | * @param cls the `struct GNUNET_CONVERSATION_Call` | ||
451 | * @param error details about the error | ||
452 | */ | ||
453 | static void | ||
454 | call_error_handler (void *cls, | ||
455 | enum GNUNET_MQ_Error error) | ||
456 | { | ||
457 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
458 | |||
459 | GNUNET_break (0); | ||
460 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
461 | _("Internal MQ error %d\n"), | ||
462 | error); | ||
463 | reconnect_call (call); | ||
464 | } | ||
465 | |||
466 | |||
467 | /** | ||
468 | * The call got disconnected, reconnect to the service. | ||
469 | * | ||
470 | * @param call call to reconnect | ||
471 | */ | ||
472 | static void | ||
473 | reconnect_call (struct GNUNET_CONVERSATION_Call *call) | ||
474 | { | ||
475 | static struct GNUNET_MQ_MessageHandler handlers[] = | ||
476 | { | ||
477 | { &handle_call_suspend, | ||
478 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_SUSPEND, | ||
479 | sizeof (struct ClientPhoneSuspendMessage) }, | ||
480 | { &handle_call_resume, | ||
481 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RESUME, | ||
482 | sizeof (struct ClientPhoneResumeMessage) }, | ||
483 | { &handle_call_picked_up, | ||
484 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_PICKED_UP, | ||
485 | sizeof (struct ClientPhonePickedupMessage) }, | ||
486 | { &handle_call_hangup, | ||
487 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_HANG_UP, | ||
488 | sizeof (struct ClientPhoneHangupMessage) }, | ||
489 | { &handle_call_audio_message, | ||
490 | GNUNET_MESSAGE_TYPE_CONVERSATION_CS_AUDIO, | ||
491 | 0 }, | ||
492 | { NULL, 0, 0 } | ||
493 | }; | ||
494 | struct GNUNET_CRYPTO_EcdsaPublicKey my_zone; | ||
495 | |||
496 | if (CS_ACTIVE == call->state) | ||
497 | { | ||
498 | call->speaker->disable_speaker (call->speaker->cls); | ||
499 | call->mic->disable_microphone (call->mic->cls); | ||
500 | } | ||
501 | if (NULL != call->mq) | ||
502 | { | ||
503 | GNUNET_MQ_destroy (call->mq); | ||
504 | call->mq = NULL; | ||
505 | } | ||
506 | if (NULL != call->client) | ||
507 | { | ||
508 | GNUNET_CLIENT_disconnect (call->client); | ||
509 | call->client = NULL; | ||
510 | } | ||
511 | call->state = CS_SHUTDOWN; | ||
512 | call->client = GNUNET_CLIENT_connect ("conversation", call->cfg); | ||
513 | if (NULL == call->client) | ||
514 | return; | ||
515 | call->mq = GNUNET_MQ_queue_for_connection_client (call->client, | ||
516 | handlers, | ||
517 | &call_error_handler, | ||
518 | call); | ||
519 | call->state = CS_LOOKUP; | ||
520 | GNUNET_IDENTITY_ego_get_public_key (call->caller_id, | ||
521 | &my_zone); | ||
522 | call->gns_lookup = GNUNET_GNS_lookup (call->gns, | ||
523 | call->callee, | ||
524 | &my_zone, | ||
525 | GNUNET_GNSRECORD_TYPE_PHONE, | ||
526 | GNUNET_NO, | ||
527 | NULL /* FIXME: add shortening support */, | ||
528 | &handle_gns_response, call); | ||
529 | GNUNET_assert (NULL != call->gns_lookup); | ||
530 | } | ||
531 | |||
532 | |||
533 | /** | ||
534 | * Call the phone of another user. | ||
535 | * | ||
536 | * @param cfg configuration to use, specifies our phone service | ||
537 | * @param caller_id identity of the caller | ||
538 | * @param callee GNS name of the callee (used to locate the callee's record) | ||
539 | * @param speaker speaker to use (will be used automatically immediately once the | ||
540 | * #GNUNET_CONVERSATION_EC_READY event is generated); we will NOT generate | ||
541 | * a ring tone on the speaker | ||
542 | * @param mic microphone to use (will be used automatically immediately once the | ||
543 | * #GNUNET_CONVERSATION_EC_READY event is generated) | ||
544 | * @param event_handler how to notify the owner of the phone about events | ||
545 | * @param event_handler_cls closure for @a event_handler | ||
546 | */ | ||
547 | struct GNUNET_CONVERSATION_Call * | ||
548 | GNUNET_CONVERSATION_call_start (const struct GNUNET_CONFIGURATION_Handle *cfg, | ||
549 | struct GNUNET_IDENTITY_Ego *caller_id, | ||
550 | const char *callee, | ||
551 | struct GNUNET_SPEAKER_Handle *speaker, | ||
552 | struct GNUNET_MICROPHONE_Handle *mic, | ||
553 | GNUNET_CONVERSATION_CallEventHandler event_handler, | ||
554 | void *event_handler_cls) | ||
555 | { | ||
556 | struct GNUNET_CONVERSATION_Call *call; | ||
557 | |||
558 | call = GNUNET_new (struct GNUNET_CONVERSATION_Call); | ||
559 | call->cfg = cfg; | ||
560 | call->caller_id = caller_id; | ||
561 | call->callee = GNUNET_strdup (callee); | ||
562 | call->speaker = speaker; | ||
563 | call->mic = mic; | ||
564 | call->event_handler = event_handler; | ||
565 | call->event_handler_cls = event_handler_cls; | ||
566 | call->gns = GNUNET_GNS_connect (cfg); | ||
567 | reconnect_call (call); | ||
568 | |||
569 | if ( (NULL == call->client) || | ||
570 | (NULL == call->gns) ) | ||
571 | { | ||
572 | GNUNET_CONVERSATION_call_stop (call); | ||
573 | return NULL; | ||
574 | } | ||
575 | return call; | ||
576 | } | ||
577 | |||
578 | |||
579 | /** | ||
580 | * We've sent the hang up message, now finish terminating the call. | ||
581 | * | ||
582 | * @param cls the `struct GNUNET_CONVERSATION_Call` to terminate | ||
583 | */ | ||
584 | static void | ||
585 | finish_stop (void *cls) | ||
586 | { | ||
587 | struct GNUNET_CONVERSATION_Call *call = cls; | ||
588 | |||
589 | GNUNET_assert (CS_SHUTDOWN == call->state); | ||
590 | GNUNET_CONVERSATION_call_stop (call); | ||
591 | } | ||
592 | |||
593 | |||
594 | /** | ||
595 | * Terminate a call. The call may be ringing or ready at this time. | ||
596 | * | ||
597 | * @param call call to terminate | ||
598 | * @param reason if the call was active (ringing or ready) this will be the | ||
599 | * reason given to the other user for why we hung up | ||
600 | */ | ||
601 | void | ||
602 | GNUNET_CONVERSATION_call_stop (struct GNUNET_CONVERSATION_Call *call) | ||
603 | { | ||
604 | struct GNUNET_MQ_Envelope *e; | ||
605 | struct ClientPhoneHangupMessage *hang; | ||
606 | |||
607 | if ( (NULL != call->speaker) && | ||
608 | (CS_ACTIVE == call->state) ) | ||
609 | call->speaker->disable_speaker (call->speaker->cls); | ||
610 | if ( (NULL != call->mic) && | ||
611 | (CS_ACTIVE == call->state) ) | ||
612 | call->mic->disable_microphone (call->mic->cls); | ||
613 | if (CS_SHUTDOWN != call->state) | ||
614 | { | ||
615 | e = GNUNET_MQ_msg (hang, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_HANG_UP); | ||
616 | GNUNET_MQ_notify_sent (e, &finish_stop, call); | ||
617 | GNUNET_MQ_send (call->mq, e); | ||
618 | call->state = CS_SHUTDOWN; | ||
619 | return; | ||
620 | } | ||
621 | if (NULL != call->mq) | ||
622 | { | ||
623 | GNUNET_MQ_destroy (call->mq); | ||
624 | call->mq = NULL; | ||
625 | } | ||
626 | if (NULL != call->client) | ||
627 | { | ||
628 | GNUNET_CLIENT_disconnect (call->client); | ||
629 | call->client = NULL; | ||
630 | } | ||
631 | if (NULL != call->gns_lookup) | ||
632 | { | ||
633 | GNUNET_GNS_lookup_cancel (call->gns_lookup); | ||
634 | call->gns_lookup = NULL; | ||
635 | } | ||
636 | if (NULL != call->gns) | ||
637 | { | ||
638 | GNUNET_GNS_disconnect (call->gns); | ||
639 | call->gns = NULL; | ||
640 | } | ||
641 | GNUNET_free (call->callee); | ||
642 | GNUNET_free (call); | ||
643 | } | ||
644 | |||
645 | |||
646 | /** | ||
647 | * Pause a call. Temporarily suspends the use of speaker and | ||
648 | * microphone. | ||
649 | * | ||
650 | * @param call call to pause | ||
651 | */ | ||
652 | void | ||
653 | GNUNET_CONVERSATION_call_suspend (struct GNUNET_CONVERSATION_Call *call) | ||
654 | { | ||
655 | GNUNET_break (0); | ||
656 | } | ||
657 | |||
658 | |||
659 | /** | ||
660 | * Resumes a call after #GNUNET_CONVERSATION_call_pause. | ||
661 | * | ||
662 | * @param call call to resume | ||
663 | * @param speaker speaker to use (will be used automatically immediately once the | ||
664 | * #GNUNET_CONVERSATION_EC_READY event is generated); we will NOT generate | ||
665 | * a ring tone on the speaker | ||
666 | * @param mic microphone to use (will be used automatically immediately once the | ||
667 | * #GNUNET_CONVERSATION_EC_READY event is generated) | ||
668 | */ | ||
669 | void | ||
670 | GNUNET_CONVERSATION_call_resume (struct GNUNET_CONVERSATION_Call *call, | ||
671 | struct GNUNET_SPEAKER_Handle *speaker, | ||
672 | struct GNUNET_MICROPHONE_Handle *mic) | ||
673 | { | ||
674 | GNUNET_break (0); | ||
675 | } | ||
676 | |||
677 | |||
678 | /* end of conversation_api_call.c */ | ||