stats: Add name vectors to Python client

Change-Id: Ic62dfa0bf3e082a0b999026830c64a9c543da586
Signed-off-by: Ole Troan <ot@cisco.com>

2 files changed, 57 insertions, 42 deletions

diff --git a/src/vpp-api/client/stat_client.c b/src/vpp-api/client/stat_client.c
index 3959c92167f..a386eec30c3 100644
--- a/src/vpp-api/client/stat_client.c
+++ b/src/vpp-api/client/stat_client.c
@@ -97,13 +97,6 @@ get_stat_vector_r (stat_client_main_t * sm)
 			       sm->shared_header->directory_offset);
 }
 
-static stat_segment_directory_entry_t *
-get_stat_vector (void)
-{
-  stat_client_main_t *sm = &stat_client_main;
-  return get_stat_vector_r (sm);
-}
-
 int
 stat_segment_connect_r (const char *socket_name, stat_client_main_t * sm)
 {
@@ -176,6 +169,31 @@ stat_segment_disconnect_r (stat_client_main_t * sm)
   return;
 }
 
+typedef struct
+{
+  uint64_t epoch;
+} stat_segment_access_t;
+
+static void
+stat_segment_access_start (stat_segment_access_t * sa,
+			   stat_client_main_t * sm)
+{
+  stat_segment_shared_header_t *shared_header = sm->shared_header;
+  sa->epoch = shared_header->epoch;
+  while (shared_header->in_progress != 0)
+    ;
+}
+
+static bool
+stat_segment_access_end (stat_segment_access_t * sa, stat_client_main_t * sm)
+{
+  stat_segment_shared_header_t *shared_header = sm->shared_header;
+
+  if (shared_header->epoch != sa->epoch || shared_header->in_progress)
+    return false;
+  return true;
+}
+
 void
 stat_segment_disconnect (void)
 {
@@ -186,9 +204,17 @@ stat_segment_disconnect (void)
 double
 stat_segment_heartbeat_r (stat_client_main_t * sm)
 {
-  stat_segment_directory_entry_t *vec = get_stat_vector_r (sm);
-  double *hb = stat_segment_pointer (sm->shared_header, vec[4].offset);
-  return *hb;
+  stat_segment_access_t sa;
+  stat_segment_directory_entry_t *ep;
+
+  /* Has directory been update? */
+  if (sm->shared_header->epoch != sm->current_epoch)
+    return 0;
+  stat_segment_access_start (&sa, sm);
+  ep = vec_elt_at_index (sm->directory_vector, STAT_COUNTER_HEARTBEAT);
+  if (!stat_segment_access_end (&sa, sm))
+    return 0.0;
+  return ep->value;
 }
 
 double
@@ -308,32 +334,6 @@ stat_segment_data_free (stat_segment_data_t * res)
   vec_free (res);
 }
 
-
-typedef struct
-{
-  uint64_t epoch;
-} stat_segment_access_t;
-
-static void
-stat_segment_access_start (stat_segment_access_t * sa,
-			   stat_client_main_t * sm)
-{
-  stat_segment_shared_header_t *shared_header = sm->shared_header;
-  sa->epoch = shared_header->epoch;
-  while (shared_header->in_progress != 0)
-    ;
-}
-
-static bool
-stat_segment_access_end (stat_segment_access_t * sa, stat_client_main_t * sm)
-{
-  stat_segment_shared_header_t *shared_header = sm->shared_header;
-
-  if (shared_header->epoch != sa->epoch || shared_header->in_progress)
-    return false;
-  return true;
-}
-
 uint32_t *
 stat_segment_ls_r (uint8_t ** patterns, stat_client_main_t * sm)
 {
@@ -480,14 +480,28 @@ stat_segment_dump_entry (uint32_t index)
 }
 
 char *
-stat_segment_index_to_name (uint32_t index)
+stat_segment_index_to_name_r (uint32_t index, stat_client_main_t * sm)
 {
-  char *name;
-  stat_segment_directory_entry_t *counter_vec = get_stat_vector ();
   stat_segment_directory_entry_t *ep;
-  ep = vec_elt_at_index (counter_vec, index);
-  name = strdup (ep->name);
-  return name;
+  stat_segment_access_t sa;
+  stat_segment_directory_entry_t *vec;
+
+  /* Has directory been update? */
+  if (sm->shared_header->epoch != sm->current_epoch)
+    return 0;
+  stat_segment_access_start (&sa, sm);
+  vec = get_stat_vector_r (sm);
+  ep = vec_elt_at_index (vec, index);
+  if (!stat_segment_access_end (&sa, sm))
+    return 0;
+  return strdup (ep->name);
+}
+
+char *
+stat_segment_index_to_name (uint32_t index)
+{
+  stat_client_main_t *sm = &stat_client_main;
+  return stat_segment_index_to_name_r (index, sm);
 }
 
 /*
diff --git a/src/vpp-api/client/stat_client.h b/src/vpp-api/client/stat_client.h
index 23087abe749..fb2adfe8f1f 100644
--- a/src/vpp-api/client/stat_client.h
+++ b/src/vpp-api/client/stat_client.h
@@ -73,6 +73,7 @@ void stat_segment_data_free (stat_segment_data_t * res);
 double stat_segment_heartbeat_r (stat_client_main_t * sm);
 double stat_segment_heartbeat (void);
 
+char *stat_segment_index_to_name_r (uint32_t index, stat_client_main_t * sm);
 char *stat_segment_index_to_name (uint32_t index);
 
 #endif /* included_stat_client_h */