2 files changed, 16 insertions, 0 deletions

diff --git a/src/include/gnunet_time_lib.h b/src/include/gnunet_time_lib.h
index bddf5c6bf..ff602194c 100644
--- a/src/include/gnunet_time_lib.h
+++ b/src/include/gnunet_time_lib.h
@@ -558,6 +558,15 @@ GNUNET_TIME_relative_is_forever (struct GNUNET_TIME_Relative rel);
 
 
 /**
+ * Test if @a rel is zero.
+ *
+ * @return true if it is.
+ */
+bool
+GNUNET_TIME_relative_is_zero (struct GNUNET_TIME_Relative rel);
+
+
+/**
  * Convert seconds after the UNIX epoch to absolute time.
  *
  * @param s_after_epoch seconds after epoch to convert
diff --git a/src/util/time.c b/src/util/time.c
index 15a4160e2..3ea5a1ea1 100644
--- a/src/util/time.c
+++ b/src/util/time.c
@@ -484,6 +484,13 @@ GNUNET_TIME_relative_is_forever (struct GNUNET_TIME_Relative rel)
 }
 
 
+bool
+GNUNET_TIME_relative_is_zero (struct GNUNET_TIME_Relative rel)
+{
+  return rel.rel_value_us == 0;
+}
+
+
 struct GNUNET_TIME_Absolute
 GNUNET_TIME_absolute_from_ms (uint64_t ms_after_epoch)
 {