add option to disable namecache, add velocity calculation and delay correction to...

[oweals/gnunet.git] / src / namestore / gnunet-service-namestore.c

diff --git a/src/namestore/gnunet-service-namestore.c b/src/namestore/gnunet-service-namestore.c
index 06a50132b73e11d8a949d512f9cbe101b76c47e1..b9061ed9fba261da425b1b8fd0414754316e300d 100644 (file)
--- a/src/namestore/gnunet-service-namestore.c
+++ b/src/namestore/gnunet-service-namestore.c
@@ -257,6 +257,12 @@ static struct GNUNET_NotificationContext *monitor_nc;
  */
 static int cache_keys;
 
+/**
+ * Use the namecache? Doing so creates additional cryptographic
+ * operations whenever we touch a record.
+ */
+static int disable_namecache;
+
 
 /**
  * Task run during shutdown.
@@ -281,8 +287,11 @@ cleanup_task (void *cls)
                                  cop);
     GNUNET_free (cop);
   }
-  GNUNET_NAMECACHE_disconnect (namecache);
-  namecache = NULL;
+  if (NULL != namecache)
+  {
+    GNUNET_NAMECACHE_disconnect (namecache);
+    namecache = NULL;
+  }
   GNUNET_break (NULL == GNUNET_PLUGIN_unload (db_lib_name,
                                              GSN_database));
   GNUNET_free (db_lib_name);
@@ -715,6 +724,14 @@ refresh_block (struct NamestoreClient *nc,
                          rid);
     return; /* no data, no need to update cache */
   }
+  if (GNUNET_YES == disable_namecache)
+  {
+    GNUNET_STATISTICS_update (statistics,
+                             "Namecache updates skipped (NC disabled)",
+                             1,
+                             GNUNET_NO);
+    return;
+  }
   exp_time = GNUNET_GNSRECORD_record_get_expiration_time (res_count,
                                                           res);
   if (cache_keys)
@@ -1692,13 +1709,20 @@ run (void *cls,
   (void) service;
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Starting namestore service\n");
-  GSN_cfg = cfg;
-  monitor_nc = GNUNET_notification_context_create (1);
-  namecache = GNUNET_NAMECACHE_connect (cfg);
-  /* Loading database plugin */
   cache_keys = GNUNET_CONFIGURATION_get_value_yesno (cfg,
                                                      "namestore",
                                                      "CACHE_KEYS");
+  disable_namecache = GNUNET_CONFIGURATION_get_value_yesno (cfg,
+                                                           "namecache",
+                                                           "DISABLE");
+  GSN_cfg = cfg;
+  monitor_nc = GNUNET_notification_context_create (1);
+  if (GNUNET_NO == disable_namecache)
+  {
+    namecache = GNUNET_NAMECACHE_connect (cfg);
+    GNUNET_assert (NULL != namecache);
+  }
+  /* Loading database plugin */
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_string (cfg,
                                              "namestore",