1 files changed, 86 insertions, 0 deletions
diff --git a/src/vnet/session/session_debug.h b/src/vnet/session/session_debug.h
new file mode 100644
index 00000000000..858f12e0287
--- /dev/null
+++ b/src/vnet/session/session_debug.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef SRC_VNET_SESSION_SESSION_DEBUG_H_
+#define SRC_VNET_SESSION_SESSION_DEBUG_H_
+
+#include <vnet/session/transport.h>
+#include <vnet/session/session.h>
+#include <vlib/vlib.h>
+
+#define foreach_session_dbg_evt		\
+  _(ENQ, "enqueue")			\
+  _(DEQ, "dequeue")
+
+typedef enum _session_evt_dbg
+{
+#define _(sym, str) SESSION_EVT_##sym,
+  foreach_session_dbg_evt
+#undef _
+} session_evt_dbg_e;
+
+#if TRANSPORT_DEBUG
+
+#define DEC_SESSION_ETD(_s, _e, _size)					\
+  struct								\
+  {									\
+    u32 data[_size];							\
+  } * ed;								\
+  transport_proto_vft_t *vft = 						\
+      session_get_transport_vft (_s->session_type);			\
+  transport_connection_t *_tc = 					\
+      vft->get_connection (_s->connection_index, _s->thread_index);	\
+  ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main,			\
+			_e, _tc->elog_track)
+
+
+#define SESSION_EVT_DEQ_HANDLER(_s, _body)				\
+{									\
+  ELOG_TYPE_DECLARE (_e) =						\
+  {									\
+    .format = "deq: id %d len %d rd %d wnd %d",				\
+    .format_args = "i4i4i4i4",						\
+  };									\
+  DEC_SESSION_ETD(_s, _e, 4);						\
+  do { _body; } while (0);						\
+}
+
+#define SESSION_EVT_ENQ_HANDLER(_s, _body)				\
+{									\
+  ELOG_TYPE_DECLARE (_e) =						\
+  {									\
+    .format = "enq: id %d length %d",					\
+    .format_args = "i4i4",						\
+  };									\
+  DEC_SESSION_ETD(_s, _e, 2);						\
+  do { _body; } while (0);						\
+}
+
+#define CONCAT_HELPER(_a, _b) _a##_b
+#define CC(_a, _b) CONCAT_HELPER(_a, _b)
+
+#define SESSION_EVT_DBG(_s, _evt, _body) CC(_evt, _HANDLER)(_s, _body)
+
+#else
+#define SESSION_EVT_DBG(_s, _evt, _body)
+#endif
+
+#endif /* SRC_VNET_SESSION_SESSION_DEBUG_H_ */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */