mirror of
https://github.com/freeCodeCamp/freeCodeCamp.git
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582 lines
20 KiB
JavaScript
Executable File
582 lines
20 KiB
JavaScript
Executable File
"use strict";
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
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function _toArray(arr) { return Array.isArray(arr) ? arr : Array.from(arr); }
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function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
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(function () {
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var Bottleneck,
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DEFAULT_PRIORITY,
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Events,
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LocalDatastore,
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NUM_PRIORITIES,
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Queues,
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RedisDatastore,
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States,
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Sync,
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packagejson,
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parser,
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splice = [].splice;
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NUM_PRIORITIES = 10;
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DEFAULT_PRIORITY = 5;
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parser = require("./parser");
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Queues = require("./Queues");
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LocalDatastore = require("./LocalDatastore");
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RedisDatastore = require("./RedisDatastore");
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Events = require("./Events");
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States = require("./States");
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Sync = require("./Sync");
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packagejson = require("../package.json");
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Bottleneck = function () {
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class Bottleneck {
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constructor(options = {}, ...invalid) {
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var storeInstanceOptions, storeOptions;
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this._drainOne = this._drainOne.bind(this);
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this.submit = this.submit.bind(this);
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this.schedule = this.schedule.bind(this);
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this.updateSettings = this.updateSettings.bind(this);
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this.incrementReservoir = this.incrementReservoir.bind(this);
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this._validateOptions(options, invalid);
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parser.load(options, this.instanceDefaults, this);
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this._queues = new Queues(NUM_PRIORITIES);
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this._scheduled = {};
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this._states = new States(["RECEIVED", "QUEUED", "RUNNING", "EXECUTING"].concat(this.trackDoneStatus ? ["DONE"] : []));
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this._limiter = null;
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this.Events = new Events(this);
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this._submitLock = new Sync("submit", this);
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this._registerLock = new Sync("register", this);
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storeOptions = parser.load(options, this.storeDefaults, {});
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this._store = function () {
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if (this.datastore === "redis" || this.datastore === "ioredis" || this.connection != null) {
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storeInstanceOptions = parser.load(options, this.redisStoreDefaults, {});
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return new RedisDatastore(this, storeOptions, storeInstanceOptions);
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} else if (this.datastore === "local") {
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storeInstanceOptions = parser.load(options, this.localStoreDefaults, {});
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return new LocalDatastore(this, storeOptions, storeInstanceOptions);
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} else {
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throw new Bottleneck.prototype.BottleneckError(`Invalid datastore type: ${this.datastore}`);
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}
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}.call(this);
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this._queues.on("leftzero", () => {
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var base;
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return typeof (base = this._store.heartbeat).ref === "function" ? base.ref() : void 0;
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});
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this._queues.on("zero", () => {
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var base;
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return typeof (base = this._store.heartbeat).unref === "function" ? base.unref() : void 0;
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});
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}
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_validateOptions(options, invalid) {
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if (!(options != null && typeof options === "object" && invalid.length === 0)) {
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throw new Bottleneck.prototype.BottleneckError("Bottleneck v2 takes a single object argument. Refer to https://github.com/SGrondin/bottleneck#upgrading-to-v2 if you're upgrading from Bottleneck v1.");
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}
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}
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ready() {
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return this._store.ready;
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}
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clients() {
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return this._store.clients;
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}
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channel() {
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return `b_${this.id}`;
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}
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publish(message) {
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return this._store.__publish__(message);
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}
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disconnect(flush = true) {
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return this._store.__disconnect__(flush);
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}
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chain(_limiter) {
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this._limiter = _limiter;
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return this;
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}
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queued(priority) {
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return this._queues.queued(priority);
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}
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empty() {
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return this.queued() === 0 && this._submitLock.isEmpty();
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}
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running() {
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return this._store.__running__();
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}
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done() {
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return this._store.__done__();
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}
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jobStatus(id) {
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return this._states.jobStatus(id);
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}
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jobs(status) {
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return this._states.statusJobs(status);
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}
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counts() {
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return this._states.statusCounts();
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}
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_sanitizePriority(priority) {
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var sProperty;
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sProperty = ~~priority !== priority ? DEFAULT_PRIORITY : priority;
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if (sProperty < 0) {
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return 0;
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} else if (sProperty > NUM_PRIORITIES - 1) {
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return NUM_PRIORITIES - 1;
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} else {
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return sProperty;
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}
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}
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_randomIndex() {
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return Math.random().toString(36).slice(2);
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}
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check(weight = 1) {
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return this._store.__check__(weight);
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}
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_run(next, wait, index) {
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var _this = this;
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var completed, done;
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this.Events.trigger("debug", [`Scheduling ${next.options.id}`, {
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args: next.args,
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options: next.options
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}]);
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done = false;
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completed = (() => {
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var _ref = _asyncToGenerator(function* (...args) {
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var e, ref, running;
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if (!done) {
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try {
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done = true;
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_this._states.next(next.options.id); // DONE
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clearTimeout(_this._scheduled[index].expiration);
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delete _this._scheduled[index];
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_this.Events.trigger("debug", [`Completed ${next.options.id}`, {
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args: next.args,
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options: next.options
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}]);
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_this.Events.trigger("done", [`Completed ${next.options.id}`, {
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args: next.args,
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options: next.options
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}]);
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var _ref2 = yield _this._store.__free__(index, next.options.weight);
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running = _ref2.running;
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_this.Events.trigger("debug", [`Freed ${next.options.id}`, {
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args: next.args,
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options: next.options
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}]);
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if (running === 0 && _this.empty()) {
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_this.Events.trigger("idle", []);
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}
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return (ref = next.cb) != null ? ref.apply({}, args) : void 0;
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} catch (error) {
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e = error;
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return _this.Events.trigger("error", [e]);
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}
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}
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});
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return function completed() {
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return _ref.apply(this, arguments);
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};
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})();
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this._states.next(next.options.id); // RUNNING
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return this._scheduled[index] = {
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timeout: setTimeout(() => {
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this.Events.trigger("debug", [`Executing ${next.options.id}`, {
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args: next.args,
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options: next.options
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}]);
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this._states.next(next.options.id); // EXECUTING
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if (this._limiter != null) {
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return this._limiter.submit.apply(this._limiter, Array.prototype.concat(next.options, next.task, next.args, completed));
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} else {
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return next.task.apply({}, next.args.concat(completed));
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}
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}, wait),
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expiration: next.options.expiration != null ? setTimeout(() => {
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return completed(new Bottleneck.prototype.BottleneckError(`This job timed out after ${next.options.expiration} ms.`));
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}, wait + next.options.expiration) : void 0,
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job: next
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};
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}
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_drainOne(capacity) {
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return this._registerLock.schedule(() => {
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var args, index, next, options, queue;
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if (this.queued() === 0) {
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return this.Promise.resolve(false);
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}
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queue = this._queues.getFirst();
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var _next = next = queue.first();
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options = _next.options;
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args = _next.args;
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if (capacity != null && options.weight > capacity) {
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return this.Promise.resolve(false);
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}
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this.Events.trigger("debug", [`Draining ${options.id}`, { args, options }]);
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index = this._randomIndex();
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return this._store.__register__(index, options.weight, options.expiration).then(({ success, wait, reservoir }) => {
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var empty;
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this.Events.trigger("debug", [`Drained ${options.id}`, { success, args, options }]);
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if (success) {
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queue.shift();
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empty = this.empty();
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if (empty) {
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this.Events.trigger("empty", []);
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}
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if (reservoir === 0) {
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this.Events.trigger("depleted", [empty]);
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}
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this._run(next, wait, index);
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}
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return this.Promise.resolve(success);
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});
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});
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}
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_drainAll(capacity) {
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return this._drainOne(capacity).then(success => {
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if (success) {
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return this._drainAll();
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} else {
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return this.Promise.resolve(success);
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}
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}).catch(e => {
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return this.Events.trigger("error", [e]);
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});
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}
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_drop(job, message = "This job has been dropped by Bottleneck") {
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var ref;
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if (this._states.remove(job.options.id)) {
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if (this.rejectOnDrop) {
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if ((ref = job.cb) != null) {
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ref.apply({}, [new Bottleneck.prototype.BottleneckError(message)]);
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}
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}
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return this.Events.trigger("dropped", [job]);
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}
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}
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_dropAllQueued(message) {
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return this._queues.shiftAll(job => {
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return this._drop(job, message);
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});
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}
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stop(options = {}) {
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var done, waitForExecuting;
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options = parser.load(options, this.stopDefaults);
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waitForExecuting = at => {
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var finished;
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finished = () => {
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var counts;
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counts = this._states.counts;
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return counts[0] + counts[1] + counts[2] + counts[3] === at;
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};
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return new this.Promise((resolve, reject) => {
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if (finished()) {
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return resolve();
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} else {
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return this.on("done", () => {
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if (finished()) {
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this.removeAllListeners("done");
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return resolve();
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}
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});
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}
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});
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};
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done = options.dropWaitingJobs ? (this._run = next => {
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return this._drop(next, options.dropErrorMessage);
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}, this._drainOne = () => {
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return this.Promise.resolve(false);
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}, this._registerLock.schedule(() => {
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return this._submitLock.schedule(() => {
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var k, ref, v;
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ref = this._scheduled;
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for (k in ref) {
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v = ref[k];
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if (this.jobStatus(v.job.options.id) === "RUNNING") {
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clearTimeout(v.timeout);
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clearTimeout(v.expiration);
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this._drop(v.job, options.dropErrorMessage);
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}
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}
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this._dropAllQueued(options.dropErrorMessage);
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return waitForExecuting(0);
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});
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})) : this.schedule({
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priority: NUM_PRIORITIES - 1,
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weight: 0
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}, () => {
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return waitForExecuting(1);
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});
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this.submit = (...args) => {
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var _ref3, _ref4, _splice$call, _splice$call2;
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var cb, ref;
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ref = args, (_ref3 = ref, _ref4 = _toArray(_ref3), args = _ref4.slice(0), _ref3), (_splice$call = splice.call(args, -1), _splice$call2 = _slicedToArray(_splice$call, 1), cb = _splice$call2[0], _splice$call);
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return cb != null ? cb.apply({}, [new Bottleneck.prototype.BottleneckError(options.enqueueErrorMessage)]) : void 0;
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};
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this.stop = () => {
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return this.Promise.reject(new Bottleneck.prototype.BottleneckError("stop() has already been called"));
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};
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return done;
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}
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submit(...args) {
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var _this2 = this;
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var cb, job, options, ref, ref1, ref2, task;
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if (typeof args[0] === "function") {
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var _ref5, _ref6, _splice$call3, _splice$call4;
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ref = args, (_ref5 = ref, _ref6 = _toArray(_ref5), task = _ref6[0], args = _ref6.slice(1), _ref5), (_splice$call3 = splice.call(args, -1), _splice$call4 = _slicedToArray(_splice$call3, 1), cb = _splice$call4[0], _splice$call3);
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options = parser.load({}, this.jobDefaults, {});
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} else {
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var _ref7, _ref8, _splice$call5, _splice$call6;
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ref1 = args, (_ref7 = ref1, _ref8 = _toArray(_ref7), options = _ref8[0], task = _ref8[1], args = _ref8.slice(2), _ref7), (_splice$call5 = splice.call(args, -1), _splice$call6 = _slicedToArray(_splice$call5, 1), cb = _splice$call6[0], _splice$call5);
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options = parser.load(options, this.jobDefaults);
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}
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job = { options, task, args, cb };
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options.priority = this._sanitizePriority(options.priority);
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if (options.id === this.jobDefaults.id) {
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options.id = `${options.id}-${this._randomIndex()}`;
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}
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if (this.jobStatus(options.id) != null) {
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if ((ref2 = job.cb) != null) {
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ref2.apply({}, [new Bottleneck.prototype.BottleneckError(`A job with the same id already exists (id=${options.id})`)]);
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}
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return false;
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}
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this._states.start(options.id); // RECEIVED
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this.Events.trigger("debug", [`Queueing ${options.id}`, { args, options }]);
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return this._submitLock.schedule(_asyncToGenerator(function* () {
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var blocked, e, reachedHWM, ref3, shifted, strategy;
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try {
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var _ref10 = yield _this2._store.__submit__(_this2.queued(), options.weight);
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reachedHWM = _ref10.reachedHWM;
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blocked = _ref10.blocked;
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strategy = _ref10.strategy;
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_this2.Events.trigger("debug", [`Queued ${options.id}`, { args, options, reachedHWM, blocked }]);
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} catch (error) {
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e = error;
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_this2._states.remove(options.id);
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_this2.Events.trigger("debug", [`Could not queue ${options.id}`, {
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args,
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options,
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error: e
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}]);
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if ((ref3 = job.cb) != null) {
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ref3.apply({}, [e]);
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}
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return false;
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}
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if (blocked) {
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_this2._drop(job);
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return true;
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} else if (reachedHWM) {
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shifted = strategy === Bottleneck.prototype.strategy.LEAK ? _this2._queues.shiftLastFrom(options.priority) : strategy === Bottleneck.prototype.strategy.OVERFLOW_PRIORITY ? _this2._queues.shiftLastFrom(options.priority + 1) : strategy === Bottleneck.prototype.strategy.OVERFLOW ? job : void 0;
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if (shifted != null) {
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_this2._drop(shifted);
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}
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if (shifted == null || strategy === Bottleneck.prototype.strategy.OVERFLOW) {
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if (shifted == null) {
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_this2._drop(job);
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}
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return reachedHWM;
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}
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}
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_this2._states.next(job.options.id); // QUEUED
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_this2._queues.push(options.priority, job);
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yield _this2._drainAll();
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return reachedHWM;
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}));
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}
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schedule(...args) {
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var options, task, wrapped;
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if (typeof args[0] === "function") {
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var _args = args;
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var _args2 = _toArray(_args);
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task = _args2[0];
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args = _args2.slice(1);
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options = parser.load({}, this.jobDefaults, {});
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} else {
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var _args3 = args;
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var _args4 = _toArray(_args3);
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options = _args4[0];
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task = _args4[1];
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args = _args4.slice(2);
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options = parser.load(options, this.jobDefaults);
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}
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wrapped = (...args) => {
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var _ref11, _ref12, _splice$call7, _splice$call8;
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var cb, ref, returned;
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ref = args, (_ref11 = ref, _ref12 = _toArray(_ref11), args = _ref12.slice(0), _ref11), (_splice$call7 = splice.call(args, -1), _splice$call8 = _slicedToArray(_splice$call7, 1), cb = _splice$call8[0], _splice$call7);
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returned = task.apply({}, args);
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return (!((returned != null ? returned.then : void 0) != null && typeof returned.then === "function") ? this.Promise.resolve(returned) : returned).then(function (...args) {
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return cb.apply({}, Array.prototype.concat(null, args));
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}).catch(function (...args) {
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return cb.apply({}, args);
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});
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};
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return new this.Promise((resolve, reject) => {
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return this.submit.apply({}, Array.prototype.concat(options, wrapped, args, function (...args) {
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return (args[0] != null ? reject : (args.shift(), resolve)).apply({}, args);
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})).catch(e => {
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return this.Events.trigger("error", [e]);
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});
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});
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}
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wrap(fn) {
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var wrapped;
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wrapped = (...args) => {
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return this.schedule.apply({}, Array.prototype.concat(fn, args));
|
|
};
|
|
wrapped.withOptions = (options, ...args) => {
|
|
return this.schedule.apply({}, Array.prototype.concat(options, fn, args));
|
|
};
|
|
return wrapped;
|
|
}
|
|
|
|
updateSettings(options = {}) {
|
|
var _this3 = this;
|
|
|
|
return _asyncToGenerator(function* () {
|
|
yield _this3._store.__updateSettings__(parser.overwrite(options, _this3.storeDefaults));
|
|
parser.overwrite(options, _this3.instanceDefaults, _this3);
|
|
return _this3;
|
|
})();
|
|
}
|
|
|
|
currentReservoir() {
|
|
return this._store.__currentReservoir__();
|
|
}
|
|
|
|
incrementReservoir(incr = 0) {
|
|
return this._store.__incrementReservoir__(incr);
|
|
}
|
|
|
|
};
|
|
|
|
Bottleneck.default = Bottleneck;
|
|
|
|
Bottleneck.version = Bottleneck.prototype.version = packagejson.version;
|
|
|
|
Bottleneck.strategy = Bottleneck.prototype.strategy = {
|
|
LEAK: 1,
|
|
OVERFLOW: 2,
|
|
OVERFLOW_PRIORITY: 4,
|
|
BLOCK: 3
|
|
};
|
|
|
|
Bottleneck.BottleneckError = Bottleneck.prototype.BottleneckError = require("./BottleneckError");
|
|
|
|
Bottleneck.Group = Bottleneck.prototype.Group = require("./Group");
|
|
|
|
Bottleneck.RedisConnection = Bottleneck.prototype.RedisConnection = require("./RedisConnection");
|
|
|
|
Bottleneck.IORedisConnection = Bottleneck.prototype.IORedisConnection = require("./IORedisConnection");
|
|
|
|
Bottleneck.Batcher = Bottleneck.prototype.Batcher = require("./Batcher");
|
|
|
|
Bottleneck.prototype.jobDefaults = {
|
|
priority: DEFAULT_PRIORITY,
|
|
weight: 1,
|
|
expiration: null,
|
|
id: "<no-id>"
|
|
};
|
|
|
|
Bottleneck.prototype.storeDefaults = {
|
|
maxConcurrent: null,
|
|
minTime: 0,
|
|
highWater: null,
|
|
strategy: Bottleneck.prototype.strategy.LEAK,
|
|
penalty: null,
|
|
reservoir: null,
|
|
reservoirRefreshInterval: null,
|
|
reservoirRefreshAmount: null
|
|
};
|
|
|
|
Bottleneck.prototype.localStoreDefaults = {
|
|
Promise: Promise,
|
|
timeout: null,
|
|
heartbeatInterval: 250
|
|
};
|
|
|
|
Bottleneck.prototype.redisStoreDefaults = {
|
|
Promise: Promise,
|
|
timeout: null,
|
|
heartbeatInterval: 5000,
|
|
clientOptions: {},
|
|
clusterNodes: null,
|
|
clearDatastore: false,
|
|
connection: null
|
|
};
|
|
|
|
Bottleneck.prototype.instanceDefaults = {
|
|
datastore: "local",
|
|
connection: null,
|
|
id: "<no-id>",
|
|
rejectOnDrop: true,
|
|
trackDoneStatus: false,
|
|
Promise: Promise
|
|
};
|
|
|
|
Bottleneck.prototype.stopDefaults = {
|
|
enqueueErrorMessage: "This limiter has been stopped and cannot accept new jobs.",
|
|
dropWaitingJobs: true,
|
|
dropErrorMessage: "This limiter has been stopped."
|
|
};
|
|
|
|
return Bottleneck;
|
|
}.call(this);
|
|
|
|
module.exports = Bottleneck;
|
|
}).call(undefined); |