view mod_log_events_by_cpu_usage/mod_log_events_by_cpu_usage.lua @ 3875:93f71ab6cb00

mod_rest: Support passing 'node' attr in disco#items queries But only in queries. Should be fine if you can't include it in responses since the requester should remember what node they asked for.
author Kim Alvefur <zash@zash.se>
date Tue, 04 Feb 2020 21:04:02 +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