session: add new api for enq tx io events

Type: improvement

Change-Id: Iefe5c2e610a26241a88ca783ac548fd8f2317bb0
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index e2fd164..633aebd 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -97,6 +97,13 @@
 }
 
 int
+session_program_tx_io_evt (session_handle_tu_t sh, session_evt_type_t evt_type)
+{
+  return session_send_evt_to_thread ((void *) &sh.session_index, 0,
+				     (u32) sh.thread_index, evt_type);
+}
+
+int
 session_send_ctrl_evt_to_thread (session_t * s, session_evt_type_t evt_type)
 {
   /* only events supported are disconnect, shutdown and reset */