session: add session stats

Type: feature

Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Change-Id: I02d9bb5292b32ffb1b2f05daccd8a7d5dba05125
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index c61e89b..6011704 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -139,7 +139,7 @@
     a->sep_ext.ext_cfg = session_mq_get_ext_config (app, mp->ext_config);
 
   if ((rv = vnet_listen (a)))
-    clib_warning ("listen returned: %U", format_session_error, rv);
+    session_worker_stat_error_inc (wrk, rv, 1);
 
   app_wrk = application_get_worker (app, mp->wrk_index);
   mq_send_session_bound_cb (app_wrk->wrk_index, mp->context, a->handle, rv);
@@ -178,6 +178,7 @@
 {
   vnet_connect_args_t _a, *a = &_a;
   app_worker_t *app_wrk;
+  session_worker_t *wrk;
   application_t *app;
   int rv;
 
@@ -211,7 +212,8 @@
 
   if ((rv = vnet_connect (a)))
     {
-      clib_warning ("connect returned: %U", format_session_error, rv);
+      wrk = session_main_get_worker (vlib_get_thread_index ());
+      session_worker_stat_error_inc (wrk, rv, 1);
       app_wrk = application_get_worker (app, mp->wrk_index);
       mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
     }
@@ -320,7 +322,7 @@
   a->app_index = app->app_index;
   if ((rv = vnet_connect_uri (a)))
     {
-      clib_warning ("connect_uri returned: %d", rv);
+      session_worker_stat_error_inc (wrk, rv, 1);
       app_wrk = application_get_worker (app, 0 /* default wrk only */ );
       mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, rv);
     }
@@ -402,7 +404,7 @@
   a->wrk_map_index = mp->wrk_index;
 
   if ((rv = vnet_unlisten (a)))
-    clib_warning ("unlisten returned: %d", rv);
+    session_worker_stat_error_inc (wrk, rv, 1);
 
   app_wrk = application_get_worker (app, a->wrk_map_index);
   if (!app_wrk)
@@ -601,6 +603,7 @@
   session_event_t *evt;
   session_t *s;
   application_t *app;
+  int rv;
 
   app = application_lookup (mp->client_index);
   if (!app)
@@ -637,7 +640,9 @@
       return;
     }
 
-  app_worker_own_session (app_wrk, s);
+  rv = app_worker_own_session (app_wrk, s);
+  if (rv)
+    session_stat_error_inc (rv, 1);
 
   /*
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