extend API to enalbe exclusive port ranges to be specified for testing-system objects

[oweals/gnunet.git] / src / include / gnunet_statistics_service.h

diff --git a/src/include/gnunet_statistics_service.h b/src/include/gnunet_statistics_service.h
index 11796d7815cc1ce271521a750106676cd52353f6..051533182e360f0e887c1f37dbc48883ce1ddec7 100644 (file)
--- a/src/include/gnunet_statistics_service.h
+++ b/src/include/gnunet_statistics_service.h
@@ -91,8 +91,6 @@ GNUNET_STATISTICS_destroy (struct GNUNET_STATISTICS_Handle *h, int sync_first);
 
 /**
  * Watch statistics from the peer (be notified whenever they change).
- * Note that the only way to cancel a "watch" request is to destroy
- * the statistics handle given as the first argument to this call.
  *
  * @param handle identification of the statistics service
  * @param subsystem limit to the specified subsystem, never NULL
@@ -107,6 +105,22 @@ GNUNET_STATISTICS_watch (struct GNUNET_STATISTICS_Handle *handle,
                          GNUNET_STATISTICS_Iterator proc, void *proc_cls);
 
 
+/**
+ * Stop watching statistics from the peer.
+ *
+ * @param handle identification of the statistics service
+ * @param subsystem limit to the specified subsystem, never NULL
+ * @param name name of the statistic value, never NULL
+ * @param proc function to call on each value
+ * @param proc_cls closure for proc
+ * @return GNUNET_OK on success, GNUNET_SYSERR on error (no such watch)
+ */
+int
+GNUNET_STATISTICS_watch_cancel (struct GNUNET_STATISTICS_Handle *handle,
+                               const char *subsystem, const char *name,
+                               GNUNET_STATISTICS_Iterator proc, void *proc_cls);
+
+
 /**
  * Continuation called by the "get_all" and "get" functions.
  *
@@ -116,6 +130,7 @@ GNUNET_STATISTICS_watch (struct GNUNET_STATISTICS_Handle *handle,
  */
 typedef void (*GNUNET_STATISTICS_Callback) (void *cls, int success);
 
+
 /**
  * Handle that can be used to cancel a statistics 'get' operation.
  */
@@ -130,6 +145,7 @@ struct GNUNET_STATISTICS_GetHandle;
  * @param timeout after how long should we give up (and call
  *        notify with buf NULL and size 0)?
  * @param cont continuation to call when done (can be NULL)
+ *        This callback CANNOT destroy the statistics handle in the same call.
  * @param proc function to call on each value
  * @param cls closure for proc and cont
  * @return NULL on error