Changeset

11936:3f49c35607ca

mod_smacks: Fix timer lifetimes to follow session instead of module module:add_timer() creates a timer that stops working after the module is reloaded or unloaded, in order to prevent leaks. However, when the timers control vital session behavior, breakage occurs after reload. E.g. sessions would stop requesting acks and stop responding to acks.
author Kim Alvefur <zash@zash.se>
date Wed, 24 Nov 2021 21:27:45 +0100
parents 11935:4d0d10fabb82
children 11937:364c3f018e3a
files plugins/mod_smacks.lua
diffstat 1 files changed, 12 insertions(+), 8 deletions(-) [+]
line wrap: on
line diff
--- a/plugins/mod_smacks.lua	Wed Nov 24 21:27:49 2021 +0100
+++ b/plugins/mod_smacks.lua	Wed Nov 24 21:27:45 2021 +0100
@@ -159,7 +159,7 @@
 		if (#queue > max_unacked and expected_h ~= session.last_requested_h) or force then
 			session.log("debug", "Queuing <r> (in a moment) from %s - #queue=%d", reason, #queue);
 			session.awaiting_ack = false;
-			session.awaiting_ack_timer = module:add_timer(1e-06, function ()
+			session.awaiting_ack_timer = timer.add_task(1e-06, function ()
 				-- session.log("debug", "*** SMACKS(3) ***: awaiting_ack=%s, hibernating=%s", tostring(session.awaiting_ack), tostring(session.hibernating));
 				-- only request ack if needed and our session is not already hibernated or destroyed
 				if not session.awaiting_ack and not session.hibernating and not session.destroyed then
@@ -171,7 +171,7 @@
 					session.last_requested_h = session.last_acknowledged_stanza + #queue;
 					session.log("debug", "Sending <r> (inside timer, after send) from %s - #queue=%d", reason, #queue);
 					if not session.delayed_ack_timer then
-						session.delayed_ack_timer = module:add_timer(delayed_ack_timeout, function()
+						session.delayed_ack_timer = timer.add_task(delayed_ack_timeout, function()
 							ack_delayed(session, nil); -- we don't know if this is the only new stanza in the queue
 						end);
 					end
@@ -298,7 +298,9 @@
 
 module:hook_tag("http://etherx.jabber.org/streams", "features",
 		function (session, stanza)
-			module:add_timer(1e-6, function ()
+			-- Needs to be done after flushing sendq since those aren't stored as
+			-- stanzas and counting them is weird.
+			timer.add_task(1e-6, function ()
 				if can_do_smacks(session) then
 					if stanza:get_child("sm", xmlns_sm3) then
 						session.sends2s(st.stanza("enable", sm3_attr));
@@ -349,10 +351,11 @@
 	if not origin.smacks then return; end
 	origin.awaiting_ack = nil;
 	if origin.awaiting_ack_timer then
-		origin.awaiting_ack_timer:stop();
+		timer.stop(origin.awaiting_ack_timer);
+		origin.awaiting_ack_timer = nil;
 	end
 	if origin.delayed_ack_timer then
-		origin.delayed_ack_timer:stop();
+		timer.stop(origin.delayed_ack_timer)
 		origin.delayed_ack_timer = nil;
 	end
 	-- Remove handled stanzas from outgoing_stanza_queue
@@ -651,10 +654,11 @@
 	if session.smacks then
 		if session.awaiting_ack then
 			if session.awaiting_ack_timer then
-				session.awaiting_ack_timer:stop();
+				timer.stop(session.awaiting_ack_timer);
+				session.awaiting_ack_timer = nil;
 			end
 			if session.delayed_ack_timer then
-				session.delayed_ack_timer:stop();
+				timer.stop(session.delayed_ack_timer);
 				session.delayed_ack_timer = nil;
 			end
 			return false; -- Kick the session
@@ -663,7 +667,7 @@
 		(session.sends2s or session.send)(st.stanza("r", { xmlns = session.smacks }));
 		session.awaiting_ack = true;
 		if not session.delayed_ack_timer then
-			session.delayed_ack_timer = module:add_timer(delayed_ack_timeout, function()
+			session.delayed_ack_timer = timer.add_task(delayed_ack_timeout, function()
 				ack_delayed(session, nil);
 			end);
 		end