codecombat/app/lib/Buddha.coffee
2014-05-06 09:49:04 -07:00

241 lines
9.9 KiB
CoffeeScript

#Sane rewrite of God (a thread pool)
{now} = require 'lib/world/world_utils'
World = require 'lib/world/world'
###
Every Angel has exactly one WebWorker attached to it.
It will call methods inside the webwrker and kill it if it times out.
###
class Angel
@cyanide: 0xDEADBEEF
infiniteLoopIntervalDuration: 7500 # check this often (must be more than the others added)
infiniteLoopTimeoutDuration: 10000 # wait this long when we check
abortTimeoutDuration: 500 # give in-process or dying workers this long to give up
constructor: (@id, @shared) ->
console.log @id + ": Creating Angel"
if (navigator.userAgent or navigator.vendor or window.opera).search("MSIE") isnt -1
@infiniteLoopIntervalDuration *= 20 # since it's so slow to serialize without transferable objects, we can't trust it
@infiniteLoopTimeoutDuration *= 20
@abortTimeoutDuration *= 10
@initialized = false
@running = false
@hireWorker()
@shared.angels.push @
testWorker: =>
if @initialized
@worker.postMessage {func: 'reportIn'}
# Are there any errors when webworker isn't loaded properly?
onWorkerMessage: (event) =>
#console.log JSON.stringify event
if @aborting and not
event.data.type is 'abort'
console.log id + " is currently aborting old work."
return
switch event.data.type
when 'start-load-frames'
clearTimeout(@condemnTimeout)
@condemnTimeout = _.delay @infinitelyLooped, @infiniteLoopTimeoutDuration
when 'end-load-frames'
console.log @id + ': No condemn this time.'
clearTimeout(@condemnTimeout)
when 'worker-initialized'
unless @initialized
console.log @id + ": Worker initialized after", ((new Date()) - @worker.creationTime), "ms"
@initialized = true
@doWork()
when 'new-world'
@beholdWorld event.data.serialized, event.data.goalStates
when 'world-load-progress-changed'
Backbone.Mediator.publish 'god:world-load-progress-changed', event.data
when 'console-log'
console.log "|" + @id + "|", event.data.args...
when 'user-code-problem'
Backbone.Mediator.publish 'god:user-code-problem', problem: event.data.problem
when 'abort'
console.log @id, "aborted."
clearTimeout @abortTimeout
@aborting = false
@running = false
@shared.busyAngels.pop @
@doWork()
when 'reportIn'
clearTimeout @condemnTimeout
else
console.log @id + " received unsupported message:", event.data
beholdWorld: (serialized, goalStates) ->
return if @aborting
unless serialized
# We're only interested in goalStates. (Simulator)
@latestGoalStates = goalStates
Backbone.Mediator.publish('god:goals-calculated', goalStates: goalStates)
@running = false
@shared.busyAngels.pop @
# console.warn "Goal states: " + JSON.stringify(goalStates)
window.BOX2D_ENABLED = false # Flip this off so that if we have box2d in the namespace, the Collides Components still don't try to create bodies for deserialized Thangs upon attachment
World.deserialize serialized, @shared.worldClassMap, @lastSerializedWorldFrames, @finishBeholdingWorld(goalStates)
window.BOX2D_ENABLED = true
@lastSerializedWorldFrames = serialized.frames
finishBeholdingWorld: (goalStates) => (world) =>
return if @aborting
world.findFirstChangedFrame @shared.world
@shared.world = world
errorCount = (t for t in @shared.world.thangs when t.errorsOut).length
Backbone.Mediator.publish('god:new-world-created', world: world, firstWorld: @shared.firstWorld, errorCount: errorCount, goalStates: goalStates)
for scriptNote in @shared.world.scriptNotes
Backbone.Mediator.publish scriptNote.channel, scriptNote.event
@shared.goalManager?.world = world
@running = false
@shared.busyAngels.pop @
@shared.firstWorld = false
@doWork()
infinitelyLooped: =>
unless @aborting
problem = type: "runtime", level: "error", id: "runtime_InfiniteLoop", message: "Code never finished. It's either really slow or has an infinite loop."
Backbone.Mediator.publish 'god:user-code-problem', problem: problem
Backbone.Mediator.publish 'god:infinite-loop', firstWorld: @shared.firstWorld
@fireWorker()
workIfIdle: ->
@doWork() unless @running
doWork: =>
#console.log "work."
return if @aborted
console.log @id + " ready and looking for work. WorkQueue length is " + @shared.workQueue.length
if @initialized and @shared.workQueue.length
work = @shared.workQueue.pop()
if work is Angel.cyanide # Kill all other Angels, too
console.log @id + ": 'work is poison'"
@shared.workQueue.push Angel.cyanide
@free()
else
console.log @id + ": Sending the worker to work."
@running = true
@shared.busyAngels.push @
console.log "Running world..."
#console.error "worker.postMessage: " + @worker.postMessage + ", work: " + work
@worker.postMessage func: 'runWorld', args: work
console.log @id + ": Setting interval."
clearTimeout @purgatoryTimer
@purgatoryTimer = setInterval @testWorker, @infiniteLoopIntervalDuration
else
console.log "No work for " + @id
@hireWorker()
abort: =>
if @worker and @running
console.log "Aborting " + @id
@running = false
@shared.busyAngels.pop @
@abortTimeout = _.delay @terminate, @fireWorker, @abortTimeoutDuration
@worker.postMessage func: 'abort'
@aborting = true
@work = null
fireWorker: (rehire=true) =>
@aborting = false
@running = false
@shared.busyAngels.pop @
@worker?.removeEventListener 'message', @onWorkerMessage
@worker?.terminate()
@worker = null
clearTimeout @condemnTimeout
clearInterval @purgatoryTimer
console.log "Fired worker."
@initialized = false
@work = null
@hireWorker() if rehire
hireWorker: ->
unless @worker
console.log @id + ": Hiring worker."
@worker = new Worker @shared.workerCode
@worker.addEventListener 'message', @onWorkerMessage
@worker.creationTime = new Date()
#@worker.postMessage func: 'initialized' else
kill: ->
@fireWorker false
@shared.angels.pop @
clearTimeout @condemnTimeout
clearTimeout @purgatoryTimer
@purgatoryTimer = null
@condemnTimeout = null
module.exports = class God
ids: ['Athena', 'Baldr', 'Crom', 'Dagr', 'Eris', 'Freyja', 'Great Gish', 'Hades', 'Ishtar', 'Janus', 'Khronos', 'Loki', 'Marduk', 'Negafook', 'Odin', 'Poseidon', 'Quetzalcoatl', 'Ra', 'Shiva', 'Thor', 'Umvelinqangi', 'Týr', 'Vishnu', 'Wepwawet', 'Xipe Totec', 'Yahweh', 'Zeus', '上帝', 'Tiamat', '盘古', 'Phoebe', 'Artemis', 'Osiris', "嫦娥", 'Anhur', 'Teshub', 'Enlil', 'Perkele', 'Chaos', 'Hera', 'Iris', 'Theia', 'Uranus', 'Stribog', 'Sabazios', 'Izanagi', 'Ao', 'Tāwhirimātea', 'Tengri', 'Inmar', 'Torngarsuk', 'Centzonhuitznahua', 'Hunab Ku', 'Apollo', 'Helios', 'Thoth', 'Hyperion', 'Alectrona', 'Eos', 'Mitra', 'Saranyu', 'Freyr', 'Koyash', 'Atropos', 'Clotho', 'Lachesis', 'Tyche', 'Skuld', 'Urðr', 'Verðandi', 'Camaxtli', 'Huhetotl', 'Set', 'Anu', 'Allah', 'Anshar', 'Hermes', 'Lugh', 'Brigit', 'Manannan Mac Lir', 'Persephone', 'Mercury', 'Venus', 'Mars', 'Azrael', 'He-Man', 'Anansi', 'Issek', 'Mog', 'Kos', 'Amaterasu Omikami', 'Raijin', 'Susanowo', 'Blind Io', 'The Lady', 'Offler', 'Ptah', 'Anubis', 'Ereshkigal', 'Nergal', 'Thanatos', 'Macaria', 'Angelos', 'Erebus', 'Hecate', 'Hel', 'Orcus', 'Ishtar-Deela Nakh', 'Prometheus', 'Hephaestos', 'Sekhmet', 'Ares', 'Enyo', 'Otrera', 'Pele', 'Hadúr', 'Hachiman', 'Dayisun Tngri', 'Ullr', 'Lua', 'Minerva']
nextID: ->
@lastID = (if @lastID? then @lastID + 1 else Math.floor(@ids.length * Math.random())) % @ids.length
@ids[@lastID]
# Charlie's Angels are all given access to this.
angelsShare: {
workerCode: '/javascripts/workers/worker_world.js' # Either path or function
workQueue: []
firstWorld: true
world: undefined
goalManager: undefined
worldClassMap: undefined
angels: []
busyAngels: [] # Busy angels will automatically register here.
}
constructor: (options) ->
options ?= {}
@angelsShare.workerCode = options.workerCode if options.workerCode
# ~20MB per idle worker + angel overhead - in this implementation, every Angel maps to 1 worker
angelCount = options.maxAngels ? options.maxWorkerPoolSize ? 2 # How many concurrent Angels/web workers to use at a time
_.delay (=>new Angel @nextID(), @angelsShare), 250 * i for i in [0...angelCount] # Don't generate all Angels at once.
Backbone.Mediator.subscribe 'tome:cast-spells', @onTomeCast, @
onTomeCast: (e) ->
@createWorld e.spells
setGoalManager: (goalManager) =>
@angelsShare.goalManager = goalManager
setWorldClassMap: (worldClassMap) =>
@angelsShare.worldClassMap = worldClassMap
getUserCodeMap: (spells) ->
userCodeMap = {}
for spellKey, spell of spells
for thangID, spellThang of spell.thangs
(userCodeMap[thangID] ?= {})[spell.name] = spellThang.aether.serialize()
#console.log userCodeMap
userCodeMap
createWorld: (spells) =>
angel.abort() for angel in @angelsShare.busyAngels # We really only ever want one world calculated per God
#console.log "Level: " + @level
@angelsShare.workQueue.push
worldName: @level.name
userCodeMap: @getUserCodeMap(spells)
level: @level
goals: @angelsShare.goalManager?.getGoals()
angel.workIfIdle() for angel in @angelsShare.angels
destroy: =>
console.log "Destroying Buddha"
@createWorld = -> console.log "CreateWorld already gone."
@angelsShare.workQueue.push Angel.cyanide
angel.kill for angel in @angelsShare.busyAngels
Backbone.Mediator.unsubscribe('tome:cast-spells', @onTomeCast, @)
@angelsShare.goalManager?.destroy()
@angelsShare.goalManager = null
@angelsShare = null