+ svm_msg_q_msg_t _msg, *msg = &_msg;
+ session_migrated_msg_t *mp;
+ svm_msg_q_t *vpp_evt_q;
+ app_worker_t *app_wrk;
+ session_event_t *evt;
+ svm_msg_q_t *app_mq;
+
+ app_wrk = app_worker_get (s->app_wrk_index);
+ app_mq = app_wrk->event_queue;
+ if (mq_try_lock_and_alloc_msg (app_mq, msg))
+ return;
+
+ evt = svm_msg_q_msg_data (app_mq, msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = SESSION_CTRL_EVT_MIGRATED;
+ mp = (session_migrated_msg_t *) evt->data;
+ mp->handle = session_handle (s);
+ mp->new_handle = new_sh;
+ mp->vpp_thread_index = session_thread_from_handle (new_sh);
+ vpp_evt_q = session_main_get_vpp_event_queue (mp->vpp_thread_index);
+ mp->vpp_evt_q = pointer_to_uword (vpp_evt_q);
+ svm_msg_q_add_and_unlock (app_mq, msg);