[Minor] Return number of hits for a symbol when querying

src/controller.c

@@ -816,7 +816,7 @@ rspamd_controller_handle_symbols (struct rspamd_http_connection_entry *conn_ent,
 			}
 
 			if (rspamd_symbols_cache_stat_symbol (session->ctx->cfg->cache,
-					sym->name, &freq, &freq_dev, &tm)) {
+					sym->name, &freq, &freq_dev, &tm, NULL)) {
 				ucl_object_insert_key (sym_obj,
 						ucl_object_fromdouble (freq),
 						"frequency", 0, false);

src/libserver/symbols_cache.c

@@ -2136,10 +2136,8 @@ rspamd_symbols_cache_find_symbol (struct symbols_cache *cache, const gchar *name
 
 gboolean
 rspamd_symbols_cache_stat_symbol (struct symbols_cache *cache,
-		const gchar *name,
-		gdouble *frequency,
-		gdouble *freq_stddev,
-		gdouble *tm)
+		const gchar *name, gdouble *frequency, gdouble *freq_stddev,
+		gdouble *tm, guint *nhits)
 {
 	struct cache_item *item;
 
@@ -2156,6 +2154,10 @@ rspamd_symbols_cache_stat_symbol (struct symbols_cache *cache,
 		*freq_stddev = sqrt (item->st->stddev_frequency);
 		*tm = item->st->time_counter.mean;
 
+		if (nhits) {
+			*nhits = item->st->hits;
+		}
+
 		return TRUE;
 	}
 

src/libserver/symbols_cache.h

@@ -141,10 +141,8 @@ gint rspamd_symbols_cache_find_symbol (struct symbols_cache *cache,
  * @return
  */
 gboolean rspamd_symbols_cache_stat_symbol (struct symbols_cache *cache,
-		const gchar *name,
-		gdouble *frequency,
-		gdouble *freq_stddev,
-		gdouble *tm);
+		const gchar *name, gdouble *frequency, gdouble *freq_stddev,
+		gdouble *tm, guint *nhits);
 /**
  * Find symbol in cache by its id
  * @param cache