-add missing comments, expand error checking

[oweals/gnunet.git] / src / dht / gnunet-service-dht_nse.c

diff --git a/src/dht/gnunet-service-dht_nse.c b/src/dht/gnunet-service-dht_nse.c
index a6e20fb57c4bb8753b69e06edc1a88c3b3feaf06..77799896765c1727265ea58bc33e56b804aef215 100644 (file)
--- a/src/dht/gnunet-service-dht_nse.c
+++ b/src/dht/gnunet-service-dht_nse.c
@@ -55,10 +55,19 @@ static void
 update_network_size_estimate (void *cls, struct GNUNET_TIME_Absolute timestamp,
                               double logestimate, double std_dev)
 {
-  log_of_network_size_estimate = logestimate;
+  GNUNET_STATISTICS_update (GDS_stats,
+                            gettext_noop ("# Network size estimates received"),
+                            1, GNUNET_NO);
+  /* do not allow estimates < 0.5 */
+  log_of_network_size_estimate = GNUNET_MAX (0.5, logestimate);
 }
 
 
+/**
+ * Return the log of the current network size estimate.
+ *
+ * @return log of NSE
+ */
 double
 GDS_NSE_get ()
 {
@@ -66,6 +75,9 @@ GDS_NSE_get ()
 }
 
 
+/**
+ * Initialize NSE subsystem.
+ */
 void
 GDS_NSE_init ()
 {
@@ -73,11 +85,14 @@ GDS_NSE_init ()
 }
 
 
+/**
+ * Shutdown NSE subsystem.
+ */
 void
 GDS_NSE_done ()
-{  
+{
   if (NULL != nse)
-    {
+  {
     GNUNET_NSE_disconnect (nse);
     nse = NULL;
   }