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46 lines
1.3 KiB
46 lines
1.3 KiB
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Barrier = void 0;
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/**
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* A simple barrier to synchronize flow of multiple async operations.
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*/
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class Barrier {
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constructor(targetCount) {
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this.currentCount = 0;
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this.targetCount = targetCount;
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this.promise = new Promise(resolve => {
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this.resolve = resolve;
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});
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}
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/**
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* Signal that a participant has reached the barrier.
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*
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* The barrier will be resolved once `targetCount` participants have reached it.
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*/
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signal() {
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this.currentCount += 1;
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if (this.currentCount === this.targetCount) {
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this.resolve();
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}
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}
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/**
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* Wait for the barrier to be resolved.
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*
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* @returns A promise that resolves when the barrier is resolved.
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*/
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async wait() {
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return this.promise;
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}
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/**
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* Signal that a participant has reached the barrier and wait for the barrier to be resolved.
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*
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* The barrier will be resolved once `targetCount` participants have reached it.
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*
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* @returns A promise that resolves when the barrier is resolved.
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*/
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async signalAndWait() {
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this.signal();
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return this.wait();
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}
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}
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exports.Barrier = Barrier;
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