Files
CHOMPStation2/code/controllers/ProcessScheduler/core/updateQueueWorker.dm
2015-02-18 04:23:41 -05:00

83 lines
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datum/updateQueueWorker
var/tmp/list/objects
var/tmp/killed
var/tmp/finished
var/tmp/procName
var/tmp/list/arguments
var/tmp/lastStart
var/tmp/cpuThreshold
datum/updateQueueWorker/New(var/list/objects, var/procName, var/list/arguments, var/cpuThreshold = 90)
..()
uq_dbg("updateQueueWorker created.")
init(objects, procName, arguments, cpuThreshold)
datum/updateQueueWorker/proc/init(var/list/objects, var/procName, var/list/arguments, var/cpuThreshold = 90)
src.objects = objects
src.procName = procName
src.arguments = arguments
src.cpuThreshold = cpuThreshold
killed = 0
finished = 0
datum/updateQueueWorker/proc/doWork()
// If there's nothing left to execute or we were killed, mark finished and return.
if (!objects || !objects.len) return finished()
lastStart = world.timeofday // Absolute number of ticks since the world started up
var/datum/object = objects[objects.len] // Pull out the object
objects.len-- // Remove the object from the list
if (istype(object) && !isturf(object) && !object.disposed && isnull(object.gcDestroyed)) // We only work with real objects
call(object, procName)(arglist(arguments))
// If there's nothing left to execute
// or we were killed while running the above code, mark finished and return.
if (!objects || !objects.len) return finished()
if (world.cpu > cpuThreshold)
// We don't want to force a tick into overtime!
// If the tick is about to go overtime, spawn the next update to go
// in the next tick.
uq_dbg("tick went into overtime with world.cpu = [world.cpu], deferred next update to next tick [1+(world.time / world.tick_lag)]")
spawn(1)
doWork()
else
spawn(0) // Execute anonymous function immediately as if we were in a while loop...
doWork()
datum/updateQueueWorker/proc/finished()
uq_dbg("updateQueueWorker finished.")
/**
* If the worker was killed while it was working on something, it
* should delete itself when it finally finishes working on it.
* Meanwhile, the updateQueue will have proceeded on with the rest of
* the queue. This will also terminate the spawned function that was
* created in the kill() proc.
*/
if(killed)
del(src)
finished = 1
datum/updateQueueWorker/proc/kill()
uq_dbg("updateQueueWorker killed.")
killed = 1
objects = null
/**
* If the worker is not done in 30 seconds after it's killed,
* we'll forcibly delete it, causing the anonymous function it was
* running to be terminated. Hasta la vista, baby.
*/
spawn(300)
del(src)
datum/updateQueueWorker/proc/start()
uq_dbg("updateQueueWorker started.")
spawn(0)
doWork()