d147843c76
- Introduced blog routing using Next.js App Router - Implemented dynamic [slug] pages for blog posts - Added MDX-based content loading via lib/posts - Integrated shared TopBar layout with navigation - Established clear content, lib and component separation
74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
/*
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This is a simple promise queue that allows you to limit the number of concurrent promises
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that are running at any given time. It's used to limit the number of concurrent
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prefetch requests that are being made to the server but could be used for other
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things as well.
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*/ "use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "PromiseQueue", {
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enumerable: true,
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get: function() {
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return PromiseQueue;
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}
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});
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class PromiseQueue {
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#maxConcurrency;
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#runningCount;
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#queue;
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constructor(maxConcurrency = 5){
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this.#maxConcurrency = maxConcurrency;
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this.#runningCount = 0;
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this.#queue = [];
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}
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enqueue(promiseFn) {
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let taskResolve;
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let taskReject;
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const taskPromise = new Promise((resolve, reject)=>{
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taskResolve = resolve;
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taskReject = reject;
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});
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const task = async ()=>{
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try {
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this.#runningCount++;
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const result = await promiseFn();
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taskResolve(result);
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} catch (error) {
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taskReject(error);
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} finally{
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this.#runningCount--;
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this.#processNext();
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}
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};
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const enqueueResult = {
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promiseFn: taskPromise,
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task
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};
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// wonder if we should take a LIFO approach here
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this.#queue.push(enqueueResult);
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this.#processNext();
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return taskPromise;
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}
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bump(promiseFn) {
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const index = this.#queue.findIndex((item)=>item.promiseFn === promiseFn);
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if (index > -1) {
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const bumpedItem = this.#queue.splice(index, 1)[0];
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this.#queue.unshift(bumpedItem);
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this.#processNext(true);
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}
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}
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#processNext(forced = false) {
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if ((this.#runningCount < this.#maxConcurrency || forced) && this.#queue.length > 0) {
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this.#queue.shift()?.task();
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}
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}
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}
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if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
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Object.defineProperty(exports.default, '__esModule', { value: true });
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Object.assign(exports.default, exports);
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module.exports = exports.default;
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}
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//# sourceMappingURL=promise-queue.js.map
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