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-- enable/disable mesecons entirely
local enabled = true
local reenable_seconds = 0
local cumulative_microseconds = 0
local hit_count = 0
-- execute()
local old_execute = mesecon.queue.execute
mesecon.queue.execute = function(...)
if enabled then
local t0 = minetest.get_us_time()
old_execute(...)
local t1 = minetest.get_us_time()
local micros = t1 - t0
cumulative_microseconds = cumulative_microseconds + micros
end
end
local timer = 0
minetest.register_globalstep(function(dtime)
timer = timer + dtime
if timer < 1 then return end
timer=0
local max_micros = tonumber(minetest.settings:get("mesecons_debug.max_micros")) or 100000
local max_hit_count = tonumber(minetest.settings:get("mesecons_debug.max_hit_count")) or 5
if cumulative_microseconds > max_micros then
-- heat up
hit_count = hit_count + 1
else
-- cooldown
max_hit_count = max_hit_count - 0.1
end
cumulative_microseconds = 0
if hit_count > max_hit_count then
hit_count = 0
enabled = false
minetest.chat_send_all("[circuit-breaker] mesecons are disabled for a minute due to abuse, " ..
"please fix/optimize your circuits!")
minetest.log("warning", "[mesecons_debug] circuit-breaker triggered -> disabled for 60 seconds")
reenable_seconds = 60
end
if reenable_seconds > 0 then
reenable_seconds = reenable_seconds - 1
if reenable_seconds < 1 then
-- re-enable again
enabled = true
mesecon.queue.actions = {}
end
end
end)
-- add_action()
local old_add_action = mesecon.queue.add_action
mesecon.queue.add_action = function(...)
if enabled then
old_add_action(...)
end
end
minetest.register_chatcommand("mesecons_enable", {
description = "enables the mesecons globlastep",
privs = {mesecons_debug=true},
func = function()
-- flush actions, while we are on it
mesecon.queue.actions = {}
enabled = true
return true, "mesecons enabled"
end
})
minetest.register_chatcommand("mesecons_disable", {
description = "disables the mesecons globlastep",
privs = {mesecons_debug=true},
func = function()
enabled = false
return true, "mesecons disabled"
end
})
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