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Experimental Web Worker support

This commit is contained in:
Tony Garnock-Jones 2014-08-02 00:32:46 -07:00
parent 2bfacbfc7b
commit 659ee24105
5 changed files with 145 additions and 0 deletions
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20
examples/smoketest-webworker/index.html Normal file
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<!doctype html>
<html>
<head>
<title>JS Marketplace: Smoketest with Web Workers</title>
<meta charset="utf-8">
<script src="../../third-party/jquery-2.0.3.min.js"></script>
<script src="../../dist/minimart.js"></script>
<script src="index.js"></script>
<style>
#gestalt-display {
white-space: pre;
font-family: monospace;
}
</style>
</head>
<body>
<h1>Smoketest with Web Workers</h1>
<div id="gestalt-display"></div>
</body>
</html>

46
examples/smoketest-webworker/index.js Normal file
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var G;
$(document).ready(function () {
var World = Minimart.World;
var Actor = Minimart.Actor;
var sub = Minimart.sub;
var pub = Minimart.pub;
var __ = Minimart.__;
var _$ = Minimart._$;
G = new Minimart.Ground(function () {
console.log('starting ground boot');
World.spawn({
name: 'GestaltDisplay',
handleEvent: function (e) {
if (e.type === "routes") {
var gd = document.getElementById('gestalt-display');
var t = document.createTextNode(G.world.textProcessTree() + '\n' +
e.gestalt.pretty());
gd.innerHTML = '';
gd.appendChild(t);
}
}
}, [sub(__, 0, 10), pub(__, 0, 10)]);
World.spawn(new Actor(function () {
this.counter = 0;
this.step = function () {
if (this.listenerExists && this.counter < 10) {
World.send(["beep", this.counter++]);
return true;
} else {
return false;
}
};
Actor.advertise(function () { return ["beep", __]; });
Actor.observeSubscribers(
function () { return ["beep", __]; },
{ presence: "listenerExists" });
}));
World.spawn(new Minimart.Worker("worker.js"));
});
G.startStepping();
});

19
examples/smoketest-webworker/worker.js Normal file
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importScripts("../../dist/minimart.js");
var World = Minimart.World;
var Actor = Minimart.Actor;
var sub = Minimart.sub;
var pub = Minimart.pub;
var __ = Minimart.__;
var _$ = Minimart._$;
new Minimart.WorkerGround(function () {
console.log('starting worker boot');
World.spawn(new Actor(function () {
Actor.subscribe(
function () { return ["beep", _$("counter")]; },
{ metaLevel: 1 },
function (counter) {
console.log("beep!", counter);
});
}));
}).startStepping();

4
src/main.js
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@ -10,3 +10,7 @@ module.exports.Ground = require("./ground.js").Ground;
module.exports.Actor = require("./actor.js").Actor;
module.exports.Spy = require("./spy.js").Spy;
module.exports.WakeDetector = require("./wake-detector.js").WakeDetector;
var Worker = require("./worker.js");
module.exports.Worker = Worker.Worker;
module.exports.WorkerGround = Worker.WorkerGround;

56
src/worker.js Normal file
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/* Web Worker interface */
var Ground = require("./ground.js").Ground;
var Util = require("./util.js");
var Codec = require("./codec.js");
var Minimart = require("./minimart.js");
var World = Minimart.World;
var sub = Minimart.sub;
var pub = Minimart.pub;
var __ = Minimart.__;
var BuiltinWorker = typeof window !== 'undefined' && window.Worker;
///////////////////////////////////////////////////////////////////////////
function Worker(scriptUrl) {
this.scriptUrl = scriptUrl;
this.w = new BuiltinWorker(scriptUrl);
}
Worker.prototype.boot = function () {
this.w.onmessage = World.wrap(function (e) {
console.log("Received from worker", JSON.stringify(e.data));
World.current().enqueueAction(World.activePid(), Codec.decodeAction(e.data));
});
};
Worker.prototype.handleEvent = function (e) {
console.log("Sending to worker", JSON.stringify(Codec.encodeEvent(e)));
this.w.postMessage(Codec.encodeEvent(e));
};
///////////////////////////////////////////////////////////////////////////
function WorkerGround(bootFn) {
var self = this;
Ground.call(this, bootFn);
onmessage = function (e) {
console.log("Received from main page", JSON.stringify(e.data));
self.world.handleEvent(Codec.decodeEvent(e.data));
self.startStepping();
};
}
WorkerGround.prototype = Util.extend({}, Ground.prototype);
WorkerGround.prototype.enqueueAction = function (pid, action) {
console.log("Sending to main page", JSON.stringify(Codec.encodeAction(action)));
postMessage(Codec.encodeAction(action));
console.log("Sent to main page");
};
///////////////////////////////////////////////////////////////////////////
module.exports.Worker = Worker;
module.exports.WorkerGround = WorkerGround;