src/vnet/session/session_debug.h

   1 /*
   2  * Copyright (c) 2017 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 #ifndef SRC_VNET_SESSION_SESSION_DEBUG_H_
  16 #define SRC_VNET_SESSION_SESSION_DEBUG_H_
  17
  18 #include <vnet/session/transport.h>
  19 #include <vnet/session/session.h>
  20 #include <vlib/vlib.h>
  21
  22 #define foreach_session_dbg_evt         \
  23   _(ENQ, "enqueue")                     \
  24   _(DEQ, "dequeue")
  25
  26 typedef enum _session_evt_dbg
  27 {
  28 #define _(sym, str) SESSION_EVT_##sym,
  29   foreach_session_dbg_evt
  30 #undef _
  31 } session_evt_dbg_e;
  32
  33 #if TRANSPORT_DEBUG
  34
  35 #define DEC_SESSION_ETD(_s, _e, _size)                                  \
  36   struct                                                                \
  37   {                                                                     \
  38     u32 data[_size];                                                    \
  39   } * ed;                                                               \
  40   transport_proto_vft_t *vft =                                          \
  41       session_get_transport_vft (_s->session_type);                     \
  42   transport_connection_t *_tc =                                         \
  43       vft->get_connection (_s->connection_index, _s->thread_index);     \
  44   ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main,                    \
  45                         _e, _tc->elog_track)
  46
  47
  48 #define SESSION_EVT_DEQ_HANDLER(_s, _body)                              \
  49 {                                                                       \
  50   ELOG_TYPE_DECLARE (_e) =                                              \
  51   {                                                                     \
  52     .format = "deq: id %d len %d rd %d wnd %d",                         \
  53     .format_args = "i4i4i4i4",                                          \
  54   };                                                                    \
  55   DEC_SESSION_ETD(_s, _e, 4);                                           \
  56   do { _body; } while (0);                                              \
  57 }
  58
  59 #define SESSION_EVT_ENQ_HANDLER(_s, _body)                              \
  60 {                                                                       \
  61   ELOG_TYPE_DECLARE (_e) =                                              \
  62   {                                                                     \
  63     .format = "enq: id %d length %d",                                   \
  64     .format_args = "i4i4",                                              \
  65   };                                                                    \
  66   DEC_SESSION_ETD(_s, _e, 2);                                           \
  67   do { _body; } while (0);                                              \
  68 }
  69
  70 #define CONCAT_HELPER(_a, _b) _a##_b
  71 #define CC(_a, _b) CONCAT_HELPER(_a, _b)
  72
  73 #define SESSION_EVT_DBG(_s, _evt, _body) CC(_evt, _HANDLER)(_s, _body)
  74
  75 #else
  76 #define SESSION_EVT_DBG(_s, _evt, _body)
  77 #endif
  78
  79 #endif /* SRC_VNET_SESSION_SESSION_DEBUG_H_ */
  80 /*
  81  * fd.io coding-style-patch-verification: ON
  82  *
  83  * Local Variables:
  84  * eval: (c-set-style "gnu")
  85  * End:
  86  */