FS-11380: [core] add new internal function

src/include/switch_ivr.h

@@ -542,6 +542,14 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_multi_threaded_bridge(_In_ switch_cor
 																 switch_input_callback_function_t dtmf_callback, void *session_data,
 																 void *peer_session_data);
 
+/*!
+  \brief Bridge leaving b-leg in the control of another thread.  Call from b-leg first then call switch_ivr_multi_threaded_bridge on a-leg and b-leg.
+  \param session b-leg session
+  \return SWITCH_STATUS_SUCCESS if all is well
+*/								
+SWITCH_DECLARE(switch_status_t) switch_ivr_bridge_bleg(switch_core_session_t *session, switch_core_session_t *peer_session, uint32_t max_wait_ms);
+
+								
 /*!
   \brief Bridge Signalling from one session to another
   \param session one session

src/include/switch_types.h

@@ -1569,6 +1569,7 @@ typedef enum {
 	CF_AWAITING_STREAM_CHANGE,
 	CF_PROCESSING_STREAM_CHANGE,
 	CF_STREAM_CHANGED,
+	CF_ARRANGED_BRIDGE,
 	/* WARNING: DO NOT ADD ANY FLAGS BELOW THIS LINE */
 	/* IF YOU ADD NEW ONES CHECK IF THEY SHOULD PERSIST OR ZERO THEM IN switch_core_session.c switch_core_session_request_xml() */
 	CF_FLAG_MAX