adding some inter channel communication and other code for real-world usage (not totally done)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@646 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_caller.h

@@ -76,6 +76,10 @@ extern "C" {
 		char *ani2;
 		/*! Destination Number */
 		char *destination_number;
+		/*! channel name */
+		char *chan_name;
+		/*! unique id */
+		char *uuid;
 	};
 
 	/*! \brief An Abstract Representation of a dialplan Application */

src/include/switch_channel.h

@@ -129,6 +129,14 @@ SWITCH_DECLARE(void) switch_channel_set_originatee_caller_profile(switch_channel
 */
 SWITCH_DECLARE(switch_caller_profile *) switch_channel_get_originatee_caller_profile(switch_channel *channel);
 
+
+/*!
+  \brief Retrive the given channel's unique id
+  \param channel channel to retrive the unique id from
+  \return the unique id
+*/
+SWITCH_DECLARE(char *) switch_channel_get_uuid(switch_channel *channel);
+
 /*!
   \brief Set a variable on a given channel
   \param channel channel to set variable on

src/include/switch_types.h

@@ -64,13 +64,15 @@ typedef enum {
   \enum switch_core_session_message_t
   \brief Possible types of messages for inter-session communication
 <pre>
-	SWITCH_MESSAGE_REDIRECT_AUDIO - Indication to redirect audio to another location if possible
+	SWITCH_MESSAGE_REDIRECT_AUDIO     - Indication to redirect audio to another location if possible
-	SWITCH_MESSAGE_TRANSMIT_TEXT  - A text message
+	SWITCH_MESSAGE_TRANSMIT_TEXT      - A text message
+	SWITCH_MESSAGE_INDICATE_PROGRESS  - indicate progress 
 </pre>
  */
 typedef enum {
 	SWITCH_MESSAGE_REDIRECT_AUDIO,
-	SWITCH_MESSAGE_TRANSMIT_TEXT
+	SWITCH_MESSAGE_TRANSMIT_TEXT,
+	SWITCH_MESSAGE_INDICATE_PROGRESS
 } switch_core_session_message_t;
 
 
@@ -171,18 +173,20 @@ typedef enum {
   \brief Channel Flags
 
 <pre>
-CF_SEND_AUDIO = (1 <<  0) - Channel will send audio
+CF_SEND_AUDIO   = (1 <<  0) - Channel will send audio
-CF_RECV_AUDIO = (1 <<  1) - Channel will receive audio
+CF_RECV_AUDIO   = (1 <<  1) - Channel will receive audio
-CF_ANSWERED   = (1 <<  2) - Channel is answered
+CF_ANSWERED     = (1 <<  2) - Channel is answered
-CF_OUTBOUND   = (1 <<  3) - Channel is an outbound channel
+CF_OUTBOUND     = (1 <<  3) - Channel is an outbound channel
+CF_EARLY_MEDIA  = (1 <<  4) - Channel is ready for audio before answer 
 </pre>
  */
 
 typedef enum {
-	CF_SEND_AUDIO = (1 <<  0),
+	CF_SEND_AUDIO 	= (1 <<  0),
-	CF_RECV_AUDIO = (1 <<  1),
+	CF_RECV_AUDIO 	= (1 <<  1),
-	CF_ANSWERED   = (1 <<  2),
+	CF_ANSWERED   	= (1 <<  2),
-	CF_OUTBOUND   = (1 <<  3),
+	CF_OUTBOUND   	= (1 <<  3),
+	CF_EARLY_MEDIA	= (1 << 4)
 } switch_channel_flag;
 
 

src/mod/applications/mod_bridgecall/mod_bridgecall.c

@@ -47,8 +47,8 @@ static void *audio_bridge_thread(switch_thread *thread, void *obj)
 {
 	struct switch_core_thread_session *data = obj;
 	int *stream_id_p;
-	int stream_id = 0;
+	int stream_id = 0, ans_a = 0, ans_b = 0;
-
+	
 	switch_channel *chan_a, *chan_b;
 	switch_frame *read_frame;
 	switch_core_session *session_a, *session_b;
@@ -64,6 +64,11 @@ static void *audio_bridge_thread(switch_thread *thread, void *obj)
 	chan_a = switch_core_session_get_channel(session_a);
 	chan_b = switch_core_session_get_channel(session_b);
 
+
+	ans_a = switch_channel_test_flag(chan_a, CF_ANSWERED);
+	ans_b = switch_channel_test_flag(chan_b, CF_ANSWERED);
+
+
 	while (data->running > 0) {
 		switch_channel_state b_state = switch_channel_get_state(chan_b);
 
@@ -76,6 +81,15 @@ static void *audio_bridge_thread(switch_thread *thread, void *obj)
 			break;
 		}
 
+
+		if (!ans_b && switch_channel_test_flag(chan_a, CF_ANSWERED)) {
+			switch_channel_answer(chan_b);
+		}
+
+		if (!ans_a && switch_channel_test_flag(chan_b, CF_ANSWERED)) {
+			switch_channel_answer(chan_a);
+		}
+
 		if (switch_channel_has_dtmf(chan_a)) {
 			char dtmf[128];
 			switch_channel_dequeue_dtmf(chan_a, dtmf, sizeof(dtmf));
@@ -229,12 +243,18 @@ static void audio_bridge_function(switch_core_session *session, char *data)
 		time(&start);
 		while (switch_channel_get_state(caller_channel) == CS_EXECUTE &&
 			   switch_channel_get_state(peer_channel) == CS_TRANSMIT &&
-			   !switch_channel_test_flag(peer_channel, CF_ANSWERED) && ((time(NULL) - start) < timelimit)) {
+			   !switch_channel_test_flag(peer_channel, CF_ANSWERED) &&
+			   !switch_channel_test_flag(peer_channel, CF_EARLY_MEDIA) &&
+			   ((time(NULL) - start) < timelimit)) {
 			switch_yield(20000);
 		}
 
 		if (switch_channel_test_flag(peer_channel, CF_ANSWERED)) {
 			switch_channel_answer(caller_channel);
+		}
+
+		if (switch_channel_test_flag(peer_channel, CF_ANSWERED) || 
+			switch_channel_test_flag(peer_channel, CF_EARLY_MEDIA)) {
 
 			switch_core_session_launch_thread(session, audio_bridge_thread, (void *) &other_audio_thread);
 			audio_bridge_thread(NULL, (void *) &this_audio_thread);

src/mod/endpoints/mod_exosip/mod_exosip.c

@@ -63,7 +63,8 @@ typedef enum {
 	TFLAG_USING_CODEC = (1 << 6),
 	TFLAG_RTP = (1 << 7),
 	TFLAG_BYE = (1 << 8),
-	TFLAG_ANS = (1 << 9)
+	TFLAG_ANS = (1 << 9),
+	TFLAG_EARLY_MEDIA = (1 << 10)
 } TFLAGS;
 
 
@@ -465,7 +466,7 @@ static switch_status exosip_answer_channel(switch_core_session *session)
 	tech_pvt = switch_core_session_get_private(session);
 	assert(tech_pvt != NULL);
 
-	if (!switch_test_flag(tech_pvt, TFLAG_ANS) && !switch_channel_test_flag(channel, CF_OUTBOUND)) {
+	if (!switch_test_flag(tech_pvt, TFLAG_ANS) && !switch_channel_test_flag(channel, CF_OUTBOUND) ) {
 		char *buf = NULL;
 		osip_message_t *answer = NULL;
 
@@ -666,6 +667,54 @@ static switch_status exosip_waitfor_write(switch_core_session *session, int ms,
 
 }
 
+static switch_status exosip_send_dtmf(switch_core_session *session, char *digits)
+{
+	return SWITCH_STATUS_FALSE;
+}
+
+static switch_status exosip_receive_message(switch_core_session *session, switch_core_session_message *msg)
+{
+
+	switch (msg->message_id) {
+	case SWITCH_MESSAGE_INDICATE_PROGRESS:
+		if (msg) {
+			struct private_object *tech_pvt;
+			switch_channel *channel = NULL;
+			
+			channel = switch_core_session_get_channel(session);
+			assert(channel != NULL);
+
+			tech_pvt = switch_core_session_get_private(session);
+			assert(tech_pvt != NULL);
+
+			if (!switch_test_flag(tech_pvt, TFLAG_EARLY_MEDIA)) {
+				char *buf = NULL;
+				osip_message_t *progress = NULL;
+
+				switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Asked to send early media by %s\n", msg->from);
+
+				/* Transmit 183 Progress with SDP */
+				eXosip_lock();
+				eXosip_call_build_answer(tech_pvt->tid, 183, &progress);
+				sdp_message_to_str(tech_pvt->local_sdp, &buf);
+				osip_message_set_body(progress, buf, strlen(buf));
+				osip_message_set_content_type(progress, "application/sdp");
+				free(buf);
+				eXosip_call_send_answer(tech_pvt->tid, 183, progress);
+				eXosip_unlock();
+				switch_set_flag(tech_pvt, TFLAG_EARLY_MEDIA);
+				switch_channel_set_flag(channel, CF_EARLY_MEDIA);
+			}
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	return SWITCH_STATUS_SUCCESS;
+}
+
 static const switch_io_routines exosip_io_routines = {
 	/*.outgoing_channel */ exosip_outgoing_channel,
 	/*.answer_channel */ exosip_answer_channel,
@@ -673,7 +722,9 @@ static const switch_io_routines exosip_io_routines = {
 	/*.write_frame */ exosip_write_frame,
 	/*.kill_channel */ exosip_kill_channel,
 	/*.waitfor_read */ exosip_waitfor_read,
-	/*.waitfor_read */ exosip_waitfor_write
+	/*.waitfor_read */ exosip_waitfor_write,
+	/*.send_dtmf*/ exosip_send_dtmf,
+	/*.receive_message*/ exosip_receive_message
 };
 
 static const switch_state_handler_table exosip_event_handlers = {
@@ -725,13 +776,15 @@ static switch_status exosip_outgoing_channel(switch_core_session *session, switc
 
 		if (outbound_profile) {
 			char name[128];
-			switch_caller_profile *caller_profile;
+			switch_caller_profile *caller_profile = NULL;
+
+			snprintf(name, sizeof(name), "Exosip/%s-%04x", outbound_profile->destination_number, rand() & 0xffff);
+			switch_channel_set_name(channel, name);
 
 			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
+
 			switch_channel_set_caller_profile(channel, caller_profile);
 			tech_pvt->caller_profile = caller_profile;
-			snprintf(name, sizeof(name), "Exosip/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
-			switch_channel_set_name(channel, name);
 		} else {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
 			switch_core_session_destroy(new_session);
@@ -806,6 +859,9 @@ static switch_status exosip_create_call(eXosip_event_t * event)
 			return SWITCH_STATUS_MEMERR;
 		}
 
+		snprintf(name, sizeof(name), "Exosip/%s-%04x", event->request->from->url->username, rand() & 0xffff);
+		switch_channel_set_name(channel, name);
+
 		if ((tech_pvt->caller_profile = switch_caller_profile_new(session,
 																  globals.dialplan,
 																  event->request->from->displayname,
@@ -820,8 +876,7 @@ static switch_status exosip_create_call(eXosip_event_t * event)
 		tech_pvt->cid = event->cid;
 		tech_pvt->tid = event->tid;
 
-		snprintf(name, sizeof(name), "Exosip/%s-%04x", tech_pvt->caller_profile->destination_number, rand() & 0xffff);
+		
-		switch_channel_set_name(channel, name);
 
 		if ((remote_sdp = eXosip_get_sdp_info(event->request)) == 0) {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Cannot Find Remote SDP!\n");

src/mod/endpoints/mod_iax/mod_iax.c

@@ -733,11 +733,13 @@ static switch_status channel_outgoing_channel(switch_core_session *session, swit
 
 		if (outbound_profile) {
 			char name[128];
+
+			snprintf(name, sizeof(name), "IAX/%s-%04x", outbound_profile->destination_number, rand() & 0xffff);
+			switch_channel_set_name(channel, name);
+
 			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
 			switch_channel_set_caller_profile(channel, caller_profile);
 			tech_pvt->caller_profile = caller_profile;
-			snprintf(name, sizeof(name), "IAX/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
-			switch_channel_set_name(channel, name);
 		} else {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
 			switch_core_session_destroy(new_session);
@@ -983,10 +985,11 @@ SWITCH_MOD_DECLARE(switch_status) switch_module_runtime(void)
 																				  iaxevent->ies.calling_ani,
 																				  NULL, iaxevent->ies.called_number)) != 0) {
 							char name[128];
-							switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
 							snprintf(name, sizeof(name), "IAX/%s-%04x", tech_pvt->caller_profile->destination_number,
 									 rand() & 0xffff);
 							switch_channel_set_name(channel, name);
+							switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
+
 						}
 
 						if (iax_set_codec(tech_pvt, iaxevent->session,

src/mod/endpoints/mod_portaudio/mod_portaudio.c

@@ -498,13 +498,14 @@ static switch_status channel_outgoing_channel(switch_core_session *session, swit
 
 		if (outbound_profile) {
 			char name[128];
+			snprintf(name, sizeof(name), "PortAudio/%s-%04x",
+					 caller_profile->destination_number ? outbound_profile->destination_number : modname,
+					 rand() & 0xffff);
+			switch_channel_set_name(channel, name);
+
 			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
 			switch_channel_set_caller_profile(channel, caller_profile);
 			tech_pvt->caller_profile = caller_profile;
-			snprintf(name, sizeof(name), "PortAudio/%s-%04x",
-					 caller_profile->destination_number ? caller_profile->destination_number : modname,
-					 rand() & 0xffff);
-			switch_channel_set_name(channel, name);
 		} else {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
 			switch_core_session_destroy(new_session);
@@ -812,11 +813,12 @@ static switch_status place_call(char *dest, char *out, size_t outlen)
 																  globals.cid_name,
 																  globals.cid_num, NULL, NULL, NULL, dest)) != 0) {
 			char name[128];
-			switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
 			snprintf(name, sizeof(name), "PortAudio/%s-%04x",
 					 tech_pvt->caller_profile->destination_number ? tech_pvt->caller_profile->
 					 destination_number : modname, rand() & 0xffff);
 			switch_channel_set_name(channel, name);
+
+			switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
 		}
 		tech_pvt->session = session;
 		if ((status = engage_device(tech_pvt)) == SWITCH_STATUS_SUCCESS) {

src/mod/endpoints/mod_wanpipe/mod_wanpipe.c

@@ -381,11 +381,12 @@ static switch_status wanpipe_outgoing_channel(switch_core_session *session, swit
 				}
 				
 			}
-			
+
+			snprintf(name, sizeof(name), "WanPipe/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
+			switch_channel_set_name(channel, name);			
 			switch_channel_set_caller_profile(channel, caller_profile);
 			tech_pvt->caller_profile = caller_profile;
-			snprintf(name, sizeof(name), "WanPipe/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
+
-			switch_channel_set_name(channel, name);
 
 			do {
 				if ((spri = &SPANS[span]->spri)) {
@@ -704,6 +705,43 @@ static int on_answer(struct sangoma_pri *spri, sangoma_pri_event_t event_type, p
 	return 0;
 }
 
+
+static int on_proceed(struct sangoma_pri *spri, sangoma_pri_event_t event_type, pri_event *event)
+{
+	switch_core_session *session;
+	switch_channel *channel;
+	struct channel_map *chanmap;
+
+	chanmap = spri->private;
+
+	if ((session = chanmap->map[event->proceeding.channel])) {
+		switch_caller_profile *originator;
+
+		switch_console_printf(SWITCH_CHANNEL_CONSOLE, "-- Proceeding on channel %d\n", event->proceeding.channel);
+		channel = switch_core_session_get_channel(session);
+		assert(channel != NULL);
+		
+		if ((originator = switch_channel_get_originator_caller_profile(channel))) {
+			switch_core_session_message msg;
+
+			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "-- Passing progress to Originator %s\n", originator->chan_name);
+
+			msg.message_id = SWITCH_MESSAGE_INDICATE_PROGRESS;
+			msg.from = switch_channel_get_name(channel);
+			
+			switch_core_session_message_send(originator->uuid, &msg);
+
+			switch_channel_set_flag(channel, CF_EARLY_MEDIA);
+		}
+
+		//switch_channel_answer(channel);
+	} else {
+		switch_console_printf(SWITCH_CHANNEL_CONSOLE, "-- Proceeding on channel %d but it's not in use?\n", event->proceeding.channel);
+	}
+
+	return 0;
+}
+
 static int on_ringing(struct sangoma_pri *spri, sangoma_pri_event_t event_type, pri_event *event)
 {
 	switch_core_session *session;
@@ -770,6 +808,7 @@ static int on_ring(struct sangoma_pri *spri, sangoma_pri_event_t event_type, pri
 			switch_core_session_set_private(session, tech_pvt);
 			sprintf(name, "w%dg%d", spri->span, event->ring.channel);
 			switch_channel_set_name(channel, name);
+
 		} else {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Hey where is my memory pool?\n");
 			switch_core_session_destroy(&session);
@@ -867,8 +906,10 @@ static void *pri_thread_run(switch_thread *thread, void *obj)
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_RING, on_ring);
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_RINGING, on_ringing);
 	//SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_SETUP_ACK, on_ringing);
+	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_PROCEEDING, on_proceed);
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_ANSWER, on_answer);
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_HANGUP_REQ, on_hangup);
+	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_HANGUP, on_hangup);
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_INFO_RECEIVED, on_info);
 	SANGOMA_MAP_PRI_EVENT((*spri), SANGOMA_PRI_EVENT_RESTART, on_restart);
 

src/mod/endpoints/mod_woomera/mod_woomera.c

@@ -490,11 +490,12 @@ static switch_status woomerachan_outgoing_channel(switch_core_session *session,
 			char name[128];
 			switch_caller_profile *caller_profile;
 
+			snprintf(name, sizeof(name), "Woomera/%s-%04x", outbound_profile->destination_number, rand() & 0xffff);
+			switch_channel_set_name(channel, name);
+
 			caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
 			switch_channel_set_caller_profile(channel, caller_profile);
 			tech_pvt->caller_profile = caller_profile;
-			snprintf(name, sizeof(name), "Woomera/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
-			switch_channel_set_name(channel, name);
 		} else {
 			switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
 			switch_core_session_destroy(new_session);
@@ -1067,10 +1068,11 @@ static void *woomera_channel_thread_run(switch_thread *thread, void *obj)
 																		  tech_pvt->profile->dialplan,
 																		  cid_name, cid_num, ip, NULL, NULL, exten)) != 0) {
 					char name[128];
-					switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
 					snprintf(name, sizeof(name), "Woomera/%s-%04x", tech_pvt->caller_profile->destination_number,
 							 rand() & 0xffff);
 					switch_channel_set_name(channel, name);
+					switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
+
 				}
 
 				woomera_printf(tech_pvt->profile, tech_pvt->command_channel,

src/switch_caller.c

@@ -68,6 +68,8 @@ SWITCH_DECLARE(switch_caller_profile *) switch_caller_profile_clone(switch_core_
 		profile->caller_id_number = switch_core_session_strdup(session, tocopy->caller_id_number);
 		profile->network_addr = switch_core_session_strdup(session, tocopy->network_addr);
 		profile->destination_number = switch_core_session_strdup(session, tocopy->destination_number);
+		profile->uuid = switch_core_session_strdup(session, tocopy->uuid);
+		profile->chan_name = switch_core_session_strdup(session, tocopy->chan_name);
 	}
 
 	return profile;

src/switch_channel.c

@@ -450,6 +450,16 @@ SWITCH_DECLARE(void) switch_channel_event_set_data(switch_channel *channel, swit
 SWITCH_DECLARE(void) switch_channel_set_caller_profile(switch_channel *channel, switch_caller_profile *caller_profile)
 {
 	assert(channel != NULL);
+	assert(channel->session != NULL);
+
+	if (!caller_profile->uuid) {
+		caller_profile->uuid = switch_core_session_strdup(channel->session, switch_core_session_get_uuid(channel->session));
+	}
+
+	if (!caller_profile->chan_name) {
+		caller_profile->chan_name = switch_core_session_strdup(channel->session, channel->name);
+	}
+
 	channel->caller_profile = caller_profile;
 }
 
@@ -479,6 +489,13 @@ SWITCH_DECLARE(switch_caller_profile *) switch_channel_get_originator_caller_pro
 	return channel->originator_caller_profile;
 }
 
+SWITCH_DECLARE(char *) switch_channel_get_uuid(switch_channel *channel)
+{
+	assert(channel != NULL);
+	assert(channel->session != NULL);
+	return switch_core_session_get_uuid(channel->session);
+}
+
 SWITCH_DECLARE(switch_caller_profile *) switch_channel_get_originatee_caller_profile(switch_channel *channel)
 {
 	assert(channel != NULL);