78 lines
1.8 KiB
JavaScript
78 lines
1.8 KiB
JavaScript
var Immutable = require('immutable');
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var Syndicate = require('./syndicate.js');
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var Network = Syndicate.Network;
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function Ground(bootFn) {
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var self = this;
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this.stepperId = null;
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this.baseStack = Immutable.List.of({ network: this, activePid: -1 });
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Network.withNetworkStack(this.baseStack, function () {
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self.network = new Network(bootFn);
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});
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}
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Ground.prototype.step = function () {
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var self = this;
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return Network.withNetworkStack(this.baseStack, function () {
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return self.network.step();
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});
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};
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Ground.prototype.checkPid = function (pid) {
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if (pid !== -1) console.error('Weird pid in Ground markPidRunnable', pid);
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};
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Ground.prototype.markPidRunnable = function (pid) {
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this.checkPid(pid);
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this.startStepping();
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};
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Ground.prototype.startStepping = function () {
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var self = this;
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if (this.stepperId) return;
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if (this.step()) {
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this.stepperId = setTimeout(function () {
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self.stepperId = null;
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self.startStepping();
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}, 0);
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}
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};
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Ground.prototype.stopStepping = function () {
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if (this.stepperId) {
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clearTimeout(this.stepperId);
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this.stepperId = null;
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}
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};
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Ground.prototype.kill = function (pid, exn) {
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this.checkPid(pid);
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console.log("Ground network terminated");
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this.stopStepping();
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};
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Ground.prototype.enqueueAction = function (pid, action) {
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this.checkPid(pid);
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switch (action.type) {
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case 'stateChange':
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if (action.patch.isNonEmpty()) {
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console.error('You have subscribed to a nonexistent event source.',
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action.patch.pretty());
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}
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break;
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case 'message':
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console.error('You have sent a message into the outer void.', action);
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break;
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default:
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console.error('Internal error: unexpected action at ground level', action);
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break;
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}
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};
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///////////////////////////////////////////////////////////////////////////
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module.exports.Ground = Ground;
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