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workertest.as
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workertest.as
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package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.system.MessageChannel;
import flash.system.Worker;
import flash.system.WorkerDomain;
import flash.system.WorkerState;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
[SWF(width="600", height="440", frameRate="60", backgroundColor="#CCCCCC")]
public class workertest extends Sprite
{
//*********************************************************
// VARIABLES
//*********************************************************
private var worker:Worker;
private var mainTo:MessageChannel;
private var workerTo:MessageChannel;
private var log:TextField;
private var balls:Array;
private var seed:Number = 1;
private var container:Sprite;
private var fps:TextField;
private var frameRate:int;
private var frameRateCheckTime:Number;
//*********************************************************
// CONSTANTS
//*********************************************************
private const CENTER_X:int = 300;
private const CENTER_Y:int = 220;
private const MAX_BALL:int = 400;
private const HARDCOST_LOOP:int = 100000000;
//*********************************************************
// PUBLIC METHODS
//*********************************************************
/**
* constructor
*/
public function workertest()
{
init();
}
//*********************************************************
// PRIVATE METHODS
//*********************************************************
/**
* init
*/
private function init():void
{
frameRateCheckTime = new Date().time;
balls = [];
container = new Sprite();
container.x = CENTER_X;
container.y = CENTER_Y;
container.mouseChildren = false;
container.mouseEnabled = false;
addChild(container);
log = createTextField();
log.text = "Worker Test";
addChild(log);
fps = createTextField();
fps.text = 'fps : ' + String(stage.frameRate + ' / ' + stage.frameRate);
fps.x = stage.stageWidth - fps.width;
fps.y = stage.stageHeight - fps.height;
addChild(fps);
var time:Number = new Date().time;
// single thread
// singleThreadTest();
// multi thread
multiThreadTest();
// 経過時間
log.appendText('\n');
log.appendText('left time : ' + String(new Date().time - time));
trace(new Date().time - time);
}
/**
* single thread test method
*/
private function singleThreadTest():void
{
// メイン処理
mainMethod();
// 負荷の高い処理
hardCostMethod();
}
/**
* multi thread test method
*/
private function multiThreadTest():void
{
// main worker
if (Worker.current.isPrimordial)
{
// メイン処理
mainMethod();
// sub worker
worker = WorkerDomain.current.createWorker(loaderInfo.bytes);
// worker 間通信用チャンネル
mainTo = Worker.current.createMessageChannel(worker);
workerTo = worker.createMessageChannel(Worker.current);
// worker 間共有プロパティ登録
worker.setSharedProperty("mainTo", mainTo);
worker.setSharedProperty("workerTo", workerTo);
// message 受信イベントハンドラ (sub worker -> main worker)
workerTo.addEventListener(Event.CHANNEL_MESSAGE, workerToHandler);
// state event
worker.addEventListener(Event.WORKER_STATE, workerStateHandler);
// worker 処理開始
worker.start();
}
// sub worker
else
{
// worker 間共有プロパティ取得
mainTo = Worker.current.getSharedProperty("mainTo");
workerTo = Worker.current.getSharedProperty("workerTo");
// message 受信イベントハンドラ (main worker -> sub worker)
mainTo.addEventListener(Event.CHANNEL_MESSAGE, mainToHandler);
// 重い処理
hardCostMethod();
}
}
/**
* message 受信イベントハンドラ (sub worker -> main worker)
* @param e
*/
private function workerToHandler(e:Event):void
{
if (e.target.messageAvailable == false) return;
var message:* = workerTo.receive();
trace('[worker to receive]' + message);
log.appendText('\n');
log.appendText('worker to receive : ' + message);
if (message == 'worker ready')
{
var inc:int = workerTo.receive() + workerTo.receive() + workerTo.receive();
trace('[worker to receive]' + inc);
log.appendText('\n');
log.appendText('worker to receive : ' + inc);
}
}
/**
* message 受信イベントハンドラ (main worker -> sub worker)
* @param e
*/
private function mainToHandler(e:Event):void
{
if (e.target.messageAvailable == false) return;
var message:* = mainTo.receive();
workerTo.send(message);
if (message == 'worker ready')
{
workerTo.send(1);
workerTo.send(2);
workerTo.send(3);
}
}
/**
* state event handler
* @param e
*/
private function workerStateHandler(e:Event):void
{
if (e.target.state == WorkerState.RUNNING)
{
mainTo.send('worker ready');
}
}
/**
* 描画処理
*/
private function mainMethod():void
{
var i:int;
var ball:Sprite;
var radian:Number;
for (i = 0; i < MAX_BALL; i++)
{
ball = createBall();
radian = i * 1 * Math.PI * ((1 + Math.sqrt(5)) * .5);
ball.x = (Math.cos(radian) * i);
ball.y = (Math.sin(radian) * i);
container.addChild(ball);
balls[i] = ball;
}
addEventListener(Event.ENTER_FRAME, enterFrameHandler);
}
/**
* enter frame handler
* @param e
*/
private function enterFrameHandler(e:Event):void
{
var i:int;
var ball:Sprite;
var radian:Number;
seed += 0.00001;
for (i = 0; i < MAX_BALL; i++)
{
ball = balls[i];
radian = i * seed * Math.PI * ((1 + Math.sqrt(5)) * .5);
ball.x += ((Math.cos(radian) * i) - ball.x) * .5;
ball.y += ((Math.sin(radian) * i) - ball.y) * .5;
}
frameRate++;
if (new Date().time - frameRateCheckTime > 1000)
{
fps.text = 'fps : ' + String(frameRate + ' / ' + stage.frameRate);
fps.x = stage.stageWidth - fps.width;
frameRate = 0;
frameRateCheckTime = new Date().time;
}
}
/**
* 重い処理
*/
private function hardCostMethod():void
{
trace('start hard cost method');
if (workerTo) workerTo.send('start hard cost method');
var time:Number = new Date().time;
var n:int = 0;
var i:int;
for (i = 0; i < HARDCOST_LOOP; i++)
{
n = i;
}
// 経過時間
if (workerTo) workerTo.send('left time : ' + String(new Date().time - time));
trace('end hard cost method');
if (workerTo) workerTo.send('end hard cost method');
}
/**
* text field 生成
*/
private function createTextField():TextField
{
var textField:TextField = new TextField();
textField.selectable = false;
textField.mouseEnabled = false;
textField.autoSize = TextFieldAutoSize.LEFT;
textField.background = true;
return textField;
}
/**
* ball 生成
*/
private function createBall():Sprite
{
var ball:Sprite = new Sprite();
ball.graphics.beginFill(0, .5);
ball.graphics.drawCircle(0, 0, 20);
ball.graphics.endFill();
return ball;
}
}
}