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_TRANSMIT_TEXT  - A text message
+	SWITCH_MESSAGE_REDIRECT_AUDIO     - Indication to redirect audio to another location if possible
+	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_RECV_AUDIO = (1 <<  1) - Channel will receive audio
-CF_ANSWERED   = (1 <<  2) - Channel is answered
-CF_OUTBOUND   = (1 <<  3) - Channel is an outbound channel
+CF_SEND_AUDIO   = (1 <<  0) - Channel will send audio
+CF_RECV_AUDIO   = (1 <<  1) - Channel will receive audio
+CF_ANSWERED     = (1 <<  2) - Channel is answered
+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_RECV_AUDIO = (1 <<  1),
-	CF_ANSWERED   = (1 <<  2),
-	CF_OUTBOUND   = (1 <<  3),
+	CF_SEND_AUDIO 	= (1 <<  0),
+	CF_RECV_AUDIO 	= (1 <<  1),
+	CF_ANSWERED   	= (1 <<  2),
+	CF_OUTBOUND   	= (1 <<  3),
+	CF_EARLY_MEDIA	= (1 << 4)
 } switch_channel_flag;