77 lines
1.4 KiB
JavaScript
77 lines
1.4 KiB
JavaScript
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"use strict";
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var DLList, Events, Queues;
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DLList = require("./DLList");
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Events = require("./Events");
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Queues = class Queues {
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constructor(num_priorities) {
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var i;
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this.Events = new Events(this);
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this._length = 0;
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this._lists = function () {
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var j, ref, results;
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results = [];
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for (i = j = 1, ref = num_priorities; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {
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results.push(new DLList(() => {
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return this.incr();
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}, () => {
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return this.decr();
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}));
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}
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return results;
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}.call(this);
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}
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incr() {
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if (this._length++ === 0) {
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return this.Events.trigger("leftzero");
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}
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}
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decr() {
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if (--this._length === 0) {
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return this.Events.trigger("zero");
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}
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}
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push(job) {
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return this._lists[job.options.priority].push(job);
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}
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queued(priority) {
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if (priority != null) {
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return this._lists[priority].length;
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} else {
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return this._length;
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}
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}
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shiftAll(fn) {
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return this._lists.forEach(function (list) {
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return list.forEachShift(fn);
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});
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}
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getFirst(arr = this._lists) {
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var j, len, list;
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for (j = 0, len = arr.length; j < len; j++) {
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list = arr[j];
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if (list.length > 0) {
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return list;
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}
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}
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return [];
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}
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shiftLastFrom(priority) {
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return this.getFirst(this._lists.slice(priority).reverse()).shift();
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}
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};
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module.exports = Queues;
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