# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1593534708 -7200
# Node ID df3ee12acd8cfd278854cab204e701de5a8857c1
# Parent  aa85cb5b859fd24f55cac700290e271ee8198e08
net.server_epoll: Add setting for turning off callback protections

Might improve (CPU) performance at the risk of triggering top level
errors.

diff -r aa85cb5b859f -r df3ee12acd8c net/server_epoll.lua
--- a/net/server_epoll.lua	Tue Jun 30 17:35:07 2020 +0200
+++ b/net/server_epoll.lua	Tue Jun 30 18:31:48 2020 +0200
@@ -74,6 +74,9 @@
 	-- Whether to kill connections in case of callback errors.
 	fatal_errors = false;
 
+	-- Or disable protection (like server_select) for potential performance gains
+	protect_listeners = true;
+
 	-- Attempt writes instantly
 	opportunistic_writes = false;
 }};
@@ -192,6 +195,9 @@
 		self:noise("Missing listener 'on%s'", what); -- uncomment for development and debugging
 		return;
 	end
+	if not cfg.protect_listeners then
+		return listener(self, ...);
+	end
 	local onerror = self.listeners.onerror or traceback;
 	local ok, err = xpcall(listener, onerror, self, ...);
 	if not ok then