+ rb_raise (notmuch_rb_eMemoryError, "Out of memory");
+
+ return Data_Wrap_Struct (notmuch_rb_cMessages, NULL, NULL, messages);
+}
+
+/*
+ * call-seq: QUERY.count_messages => Fixnum
+ *
+ * Return an estimate of the number of messages matching a search
+ */
+VALUE
+notmuch_rb_query_count_messages (VALUE self)
+{
+ notmuch_query_t *query;
+
+ Data_Get_Notmuch_Query (self, query);
+
+ /* Xapian exceptions are not handled properly.
+ * (function may return 0 after printing a message)
+ * Thus there is nothing we can do here...
+ */
+ return UINT2NUM(notmuch_query_count_messages(query));
+}
+
+/*
+ * call-seq: QUERY.count_threads => Fixnum
+ *
+ * Return an estimate of the number of threads matching a search
+ */
+VALUE
+notmuch_rb_query_count_threads (VALUE self)
+{
+ notmuch_query_t *query;
+
+ Data_Get_Notmuch_Query (self, query);