view mod_log_events_by_cpu_usage/mod_log_events_by_cpu_usage.lua @ 4764:a754f7e380b2

mod_dnsupdate: Rewrite port config vs DNS comparison code I'm not sure if it was correct, which means it was hard to understand and thus needed to be simplified. Hope this accomplishes that.
author Kim Alvefur <zash@zash.se>
date Mon, 08 Nov 2021 23:03:14 +0100
parents c0bc97c0ba61
children
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module:set_global();

local treshold = module:get_option_number("log_cpu_threshold", 0.01);

function event_wrapper(handlers, event_name, event_data)
	local cpu_before = os.clock();
	local ret = handlers(event_name, event_data);
	local cpu_after = os.clock();
	if (cpu_after - cpu_before) > treshold then
		module:log("warn", "%g seconds of CPU usage while processing event '%s'", (cpu_after - cpu_before), event_name);
	end
	return ret;
end

local http_events = require "net.http.server"._events;
module:wrap_object_event(http_events, false, event_wrapper);

module:wrap_event(false, event_wrapper);
function module.add_host(module)
	module:wrap_event(false, event_wrapper);
end