fix(stats): fix forwarder statistics retrieval

Ref: HICN-794
Signed-off-by: Enrico Loparco (eloparco) <eloparco@cisco.com>
Change-Id: I13162174f45855989727f92e96c11a1d48d710dd

8 files changed, 126 insertions, 112 deletions

diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/base.h b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
index fb6a68147..ea6fc1bc9 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/base.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/base.h
@@ -3,16 +3,13 @@
 
 #include <hicn/ctrl/hicn-light.h>
 
-#if 1
 #ifdef __APPLE__
 #define RANDBYTE() (u8)(arc4random() & 0xFF)
 #else
 #define RANDBYTE() (u8)(random() & 0xFF)
 #endif
-#else
-#define RANDBYTE() (u8)(rand() & 0xFF)
-#endif
 
+// TODO: is this used?
 #define foreach_hc_command     \
   _(connection_add)            \
   _(connection_remove)         \
@@ -36,14 +33,6 @@
   _(subscription_add)          \
   _(subscription_remove)
 
-#if 0
-const char *command_type_str[] = {
-#define _(l, u) [COMMAND_TYPE_##u] = STRINGIZE(u),
-    foreach_command_type
-#undef _
-};
-#endif
-
 typedef union {
 #define _(x) cmd_##x##_t x;
   foreach_hc_command
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/connection.h b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
index 77204e6b2..21f3a2fbc 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/connection.h
@@ -6,22 +6,6 @@
 int hc_connection_to_local_listener(const hc_connection_t *connection,
                                     hc_listener_t *listener);
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, connection);
-// extern const hc_module_object_ops_t hicnlight_connection_module_ops;
-
-#else
-
-int _hicnlight_connection_parse(const uint8_t *buffer, size_t size,
-                                hc_object_t *object);
-
-int hicnlight_connection_serialize_create(const hc_object_t *object,
-                                          uint8_t *packet);
-int hicnlight_connection_serialize_delete(const hc_object_t *object,
-                                          uint8_t *packet);
-int hicnlight_connection_serialize_list(const hc_object_t *object,
-                                        uint8_t *packet);
 
-#endif
 #endif /* HICNCTRL_MODULE_HICNLIGHT_CONNECTION_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/listener.h b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
index 27ef8434d..67eadfbb1 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/listener.h
@@ -3,19 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, listener);
-#else
-
-int _hicnlight_listener_parse(const uint8_t *buffer, size_t size,
-                              hc_object_t *object);
-
-int hicnlight_listener_serialize_create(const hc_object_t *object,
-                                        uint8_t *packet);
-int hicnlight_listener_serialize_delete(const hc_object_t *object,
-                                        uint8_t *packet);
-int hicnlight_listener_serialize_list(const hc_object_t *object,
-                                      uint8_t *packet);
-#endif
 
 #endif /* HICNCTRL_MODULE_HICNLIGHT_LISTENER_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/route.h b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
index e86e8b8c3..825253a42 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/route.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/route.h
@@ -23,20 +23,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, route);
 
-#else
-
-int _hicnlight_route_parse(const uint8_t *buffer, size_t size,
-                           hc_object_t *object);
-int hicnlight_route_serialize_create(const hc_object_t *object,
-                                     uint8_t *packet);
-int hicnlight_route_serialize_delete(const hc_object_t *object,
-                                     uint8_t *packet);
-int hicnlight_route_serialize_list(const hc_object_t *object, uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_ROUTE_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/stats.c b/ctrl/libhicnctrl/src/modules/hicn_light/stats.c
new file mode 100644
index 000000000..81c506770
--- /dev/null
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/stats.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2022 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.
+ */
+
+/**
+ * \file modules/hicn_light/stats.c
+ * \brief Implementation of stats object VFT for hicn_light.
+ */
+
+#include <hicn/util/log.h>
+#include "base.h"
+#include "stats.h"
+
+/* GENERAL STATS */
+
+int hicnlight_stats_parse(const uint8_t *buffer, size_t size,
+                          hc_stats_t *stats) {
+  if (size != sizeof(cmd_stats_list_item_t)) return -1;
+
+  cmd_stats_list_item_t *item = (cmd_stats_list_item_t *)buffer;
+  *stats = item->stats;
+  return 0;
+}
+
+int _hicnlight_stats_parse(const uint8_t *buffer, size_t size,
+                           hc_object_t *object) {
+  return hicnlight_stats_parse(buffer, size, &object->stats);
+}
+
+int hicnlight_stats_serialize_create(const hc_object_t *object,
+                                     uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_stats_serialize_delete(const hc_object_t *object,
+                                     uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_stats_serialize_list(const hc_object_t *object, uint8_t *packet) {
+  msg_stats_list_t *msg = (msg_stats_list_t *)packet;
+  *msg = (msg_stats_list_t){.header = {
+                                .message_type = REQUEST_LIGHT,
+                                .command_id = COMMAND_TYPE_STATS_LIST,
+                                .length = 0,
+                                .seq_num = 0,
+                            }};
+
+  return sizeof(msg_header_t);  // Do not use msg_stats_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, stats);
+
+/* PER-FACE STATS */
+
+int hicnlight_face_stats_parse(const uint8_t *buffer, size_t size,
+                               hc_face_stats_t *stats) {
+  if (size != sizeof(cmd_face_stats_list_item_t)) return -1;
+
+  cmd_face_stats_list_item_t *item = (cmd_face_stats_list_item_t *)buffer;
+  *stats = item->stats;
+  return 0;
+}
+
+int _hicnlight_face_stats_parse(const uint8_t *buffer, size_t size,
+                                hc_object_t *object) {
+  return hicnlight_face_stats_parse(buffer, size, &object->face_stats);
+}
+
+int hicnlight_face_stats_serialize_create(const hc_object_t *object,
+                                          uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_face_stats_serialize_delete(const hc_object_t *object,
+                                          uint8_t *packet) {
+  return -1;
+}
+
+int hicnlight_face_stats_serialize_list(const hc_object_t *object,
+                                        uint8_t *packet) {
+  msg_face_stats_list_t *msg = (msg_face_stats_list_t *)packet;
+  *msg = (msg_face_stats_list_t){.header = {
+                                     .message_type = REQUEST_LIGHT,
+                                     .command_id = COMMAND_TYPE_FACE_STATS_LIST,
+                                     .length = 0,
+                                     .seq_num = 0,
+                                 }};
+
+  return sizeof(msg_header_t);  // Do not use msg_stats_list_t
+}
+
+DECLARE_MODULE_OBJECT_OPS(hicnlight, face_stats);
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/stats.h b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
index 34594bb72..9509be86c 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/stats.h
@@ -1,26 +1,24 @@
+/*
+ * Copyright (c) 2022 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.
+ */
 
-#if 0
+#ifndef HICNCTRL_MODULE_HICNLIGHT_STATS_H
+#define HICNCTRL_MODULE_HICNLIGHT_STATS_H
 
-int hc_stats_snprintf(char *s, size_t size, const hicn_light_stats_t *stats) {
-  return snprintf(
-      s, size,
-      "pkts processed: %u\n\tinterests: %u\n\t"
-      "data: %u\npkts from cache count: %u\npkts no pit count: "
-      "%u\nexpired:\n\t interests: "
-      "%u\n\t data: %u\ninterests aggregated: "
-      "%u\nlru evictions: "
-      "%u\ndropped: "
-      "%u\ninterests retx: "
-      "%u\npit entries: %u\ncs entries: %u",
-      stats->forwarder.countReceived, stats->forwarder.countInterestsReceived,
-      stats->forwarder.countObjectsReceived,
-      stats->forwarder.countInterestsSatisfiedFromStore,
-      stats->forwarder.countDroppedNoReversePath,
-      stats->forwarder.countInterestsExpired, stats->forwarder.countDataExpired,
-      stats->pkt_cache.n_lru_evictions, stats->forwarder.countDropped,
-      stats->forwarder.countInterestsAggregated,
-      stats->forwarder.countInterestsRetransmitted,
-      stats->pkt_cache.n_pit_entries, stats->pkt_cache.n_cs_entries);
-}
+#include "../../module.h"
 
-#endif
+DECLARE_MODULE_OBJECT_OPS_H(hicnlight, stats);
+DECLARE_MODULE_OBJECT_OPS_H(hicnlight, face_stats);
+
+#endif /* HICNCTRL_MODULE_HICNLIGHT_STATS_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
index 6b1933960..9fa809751 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/strategy.h
@@ -3,22 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, strategy);
 
-int _hicnlight_strategy_parse(const uint8_t *buffer, size_t size,
-                              hc_object_t *object);
-
-int hicnlight_strategy_serialize_create(const hc_object_t *object,
-                                        uint8_t *packet);
-
-int hicnlight_strategy_serialize_delete(const hc_object_t *object,
-                                        uint8_t *packet);
-
-int hicnlight_strategy_serialize_list(const hc_object_t *object,
-                                      uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_STRATEGY_H */
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
index a4edf556b..d67bdd9ba 100644
--- a/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
+++ b/ctrl/libhicnctrl/src/modules/hicn_light/subscription.h
@@ -3,24 +3,6 @@
 
 #include "../../module.h"
 
-#if 1
-
 DECLARE_MODULE_OBJECT_OPS_H(hicnlight, subscription);
 
-#else
-
-int _hicnlight_subscription_parse(const uint8_t *buffer, size_t size,
-                                  hc_object_t *object);
-
-int hicnlight_subscription_serialize_create(const hc_object_t *object,
-                                            uint8_t *packet);
-
-int hicnlight_subscription_serialize_delete(const hc_object_t *object,
-                                            uint8_t *packet);
-
-int hicnlight_subscription_serialize_list(const hc_object_t *object,
-                                          uint8_t *packet);
-
-#endif
-
 #endif /* HICNCTRL_MODULE_HICNLIGHT_SUBSCRIPTION_H */