Files
Yogstation/code/controllers/failsafe.dm
adamsong 3baeaeb0c4 Steals tg's span macros (#12232)
* Steals tg's span macros

* Fix alphabet

* Updated some more spans

* Misses a conflict

* Fix compile errors

* Converts more spans

* oops
2021-09-17 12:50:16 +01:00

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/**
* Failsafe
*
* Pretty much pokes the MC to make sure it's still alive.
**/
GLOBAL_REAL(Failsafe, /datum/controller/failsafe)
/datum/controller/failsafe // This thing pretty much just keeps poking the master controller
name = "Failsafe"
// The length of time to check on the MC (in deciseconds).
// Set to 0 to disable.
var/processing_interval = 20
// The alert level. For every failed poke, we drop a DEFCON level. Once we hit DEFCON 1, restart the MC.
var/defcon = 5
//the world.time of the last check, so the mc can restart US if we hang.
// (Real friends look out for *eachother*)
var/lasttick = 0
// Track the MC iteration to make sure its still on track.
var/master_iteration = 0
var/running = TRUE
/datum/controller/failsafe/New()
// Highlander-style: there can only be one! Kill off the old and replace it with the new.
if(Failsafe != src)
if(istype(Failsafe))
qdel(Failsafe)
Failsafe = src
Initialize()
/datum/controller/failsafe/Initialize()
set waitfor = 0
Failsafe.Loop()
if(!QDELETED(src))
qdel(src) //when Loop() returns, we delete ourselves and let the mc recreate us
/datum/controller/failsafe/Destroy()
running = FALSE
..()
return QDEL_HINT_HARDDEL_NOW
/datum/controller/failsafe/proc/Loop()
while(running)
lasttick = world.time
if(!Master)
// Replace the missing Master! This should never, ever happen.
new /datum/controller/master()
// Only poke it if overrides are not in effect.
if(processing_interval > 0)
if(Master.processing && Master.iteration)
// Check if processing is done yet.
if(Master.iteration == master_iteration)
switch(defcon)
if(4,5)
--defcon
if(3)
message_admins(span_adminnotice("Notice: DEFCON [defcon_pretty()]. The Master Controller has not fired in the last [(5-defcon) * processing_interval] ticks."))
--defcon
if(2)
to_chat(GLOB.admins, span_boldannounce("Warning: DEFCON [defcon_pretty()]. The Master Controller has not fired in the last [(5-defcon) * processing_interval] ticks. Automatic restart in [processing_interval] ticks."))
--defcon
if(1)
to_chat(GLOB.admins, span_boldannounce("Warning: DEFCON [defcon_pretty()]. The Master Controller has still not fired within the last [(5-defcon) * processing_interval] ticks. Killing and restarting..."))
--defcon
var/rtn = Recreate_MC()
if(rtn > 0)
defcon = 4
master_iteration = 0
to_chat(GLOB.admins, span_adminnotice("MC restarted successfully"))
else if(rtn < 0)
log_game("FailSafe: Could not restart MC, runtime encountered. Entering defcon 0")
to_chat(GLOB.admins, span_boldannounce("ERROR: DEFCON [defcon_pretty()]. Could not restart MC, runtime encountered. I will silently keep retrying."))
//if the return number was 0, it just means the mc was restarted too recently, and it just needs some time before we try again
//no need to handle that specially when defcon 0 can handle it
if(0) //DEFCON 0! (mc failed to restart)
var/rtn = Recreate_MC()
if(rtn > 0)
defcon = 4
master_iteration = 0
to_chat(GLOB.admins, span_adminnotice("MC restarted successfully"))
else
defcon = min(defcon + 1,5)
master_iteration = Master.iteration
if (defcon <= 1)
sleep(processing_interval*2)
else
sleep(processing_interval)
else
defcon = 5
sleep(initial(processing_interval))
/datum/controller/failsafe/proc/defcon_pretty()
return defcon
/datum/controller/failsafe/stat_entry(msg)
msg = "Defcon: [defcon_pretty()] (Interval: [Failsafe.processing_interval] | Iteration: [Failsafe.master_iteration])"
return msg