STATS: stat_client updates.

New stat segment client library: vpp-api/client/stat_client.h
New stat segment query app: vpp_get_stats [ls | dump | poll ] <pattern ...>
Prometheus integration through: vpp_prometheus_export <pattern>

Change-Id: I6f370cf599e9fcf066f22965a62d3a8acd529994
Signed-off-by: Ole Troan <ot@cisco.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/vpp-api/client/stat_client.h b/src/vpp-api/client/stat_client.h
new file mode 100644
index 00000000000..5f076686fdd
--- /dev/null
+++ b/src/vpp-api/client/stat_client.h
@@ -0,0 +1,64 @@
+/*
+ * stat_client.h - Library for access to VPP statistics segment
+ *
+ * Copyright (c) 2018 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 included_stat_client_h
+#define included_stat_client_h
+
+#include <vlib/vlib.h>
+#include <vpp/stats/stats.h>
+
+typedef struct
+{
+  char *name;
+  stat_directory_type_t type;
+  union
+  {
+    f64 scalar_value;
+    u64 error_value;
+    u64 *vector_pointer;
+    counter_t **simple_counter_vec;
+    vlib_counter_t **combined_counter_vec;
+  };
+} stat_segment_data_t;
+
+typedef struct
+{
+  char *name;
+  stat_segment_directory_entry_t *ep;
+} stat_segment_cached_pointer_t;
+
+int stat_segment_connect (char *socket_name);
+void stat_segment_disconnect (void);
+
+u8 **stat_segment_ls (u8 ** pattern);
+stat_segment_data_t *stat_segment_dump (u8 ** counter_vec);
+
+stat_segment_cached_pointer_t *stat_segment_register (u8 ** counter_vec);
+stat_segment_data_t *stat_segment_collect (stat_segment_cached_pointer_t *);	/* Collects registered counters */
+
+void stat_segment_data_free (stat_segment_data_t * res);
+
+f64 stat_segment_heartbeat (void);
+
+#endif /* included_stat_client_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */