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vgstation13/code/controllers/failsafe.dm

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var/global/datum/controller/failsafe/failsafe
/datum/controller/failsafe // This thing pretty much just keeps poking the controllers.
processing_interval = 100 // Poke the controllers every 10 seconds.
/*
* Controller alert level.
* For every poke that fails this is raised by 1.
* When it reaches 5 the MC is replaced with a new one
* (effectively killing any controller process() and starting a new one).
*/
// master
var/masterControllerIteration = 0
var/masterControllerAlertLevel = 0
// lighting
var/lightingControllerIteration = 0
var/lightingControllerAlertLevel = 0
/datum/controller/failsafe/New()
. = ..()
// There can be only one failsafe. Out with the old in with the new (that way we can restart the Failsafe by spawning a new one).
if (failsafe != src)
if (istype(failsafe))
recover()
qdel(failsafe)
failsafe = src
failsafe.process()
/datum/controller/failsafe/proc/process()
processing = 1
spawn(0)
set background = BACKGROUND_ENABLED
while(1) // More efficient than recursivly calling ourself over and over. background = 1 ensures we do not trigger an infinite loop.
iteration++
if(processing)
if(master_controller.processing) // Only poke if these overrides aren't in effect
if(masterControllerIteration == master_controller.iteration) // Master controller hasn't finished processing in the defined interval.
switch(masterControllerAlertLevel)
if(0 to 3)
masterControllerAlertLevel++
if(4)
to_chat(admins, "<font color='red' size='2'><b>Warning. The master Controller has not fired in the last [masterControllerAlertLevel * processing_interval] ticks. Automatic restart in [processing_interval] ticks.</b></font>")
masterControllerAlertLevel = 5
if(5)
to_chat(admins, "<font color='red' size='2'><b>Warning. The master Controller has still not fired within the last [masterControllerAlertLevel * processing_interval] ticks. Killing and restarting...</b></font>")
new /datum/controller/game_controller() // Replace the old master controller (hence killing the old one's process).
master_controller.process() // Start it rolling again.
masterControllerAlertLevel = 0
else
masterControllerAlertLevel = 0
masterControllerIteration = master_controller.iteration
sleep(processing_interval)