# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1414531601 -3600
# Node ID 05fa54404012e779e392a31eff5237c4e8527abc
# Parent  57bb2497fadc64a5178a297bb8f986d0fba9a030
mod_smacks: Send ack requests by serializing and concatenating them to outgoing stanzas, using a timer might cause high CPU usage

diff -r 57bb2497fadc -r 05fa54404012 mod_smacks/mod_smacks.lua
--- a/mod_smacks/mod_smacks.lua	Tue Oct 28 15:24:50 2014 +0100
+++ b/mod_smacks/mod_smacks.lua	Tue Oct 28 22:26:41 2014 +0100
@@ -74,13 +74,9 @@
 			session.log("debug", "hibernating, stanza queued");
 			return ""; -- Hack to make session.send() not return nil
 		end
-		if #queue > max_unacked_stanzas then
-			module:add_timer(0, function ()
-				if not session.awaiting_ack then
-					session.awaiting_ack = true;
-					(session.sends2s or session.send)(st.stanza("r", { xmlns = session.smacks }));
-				end
-			end);
+		if #queue > max_unacked_stanzas and not session.awaiting_ack then
+			session.awaiting_ack = true;
+			return tostring(stanza)..tostring(st.stanza("r", { xmlns = session.smacks }));
 		end
 	end
 	return stanza;