@beenotung/tslib/async/wait-group.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WaitGroup = void 0;
class WaitGroup {
    total = 0;
    done = 0;
    callbacks = [];
    add() {
        this.total++;
        return () => {
            this.done++;
            this.check();
        };
    }
    waitAll(cb) {
        if (this.total === this.done) {
            cb();
            return;
        }
        this.callbacks.push(cb);
    }
    check() {
        if (this.total === this.done) {
            this.noticeAll();
        }
    }
    noticeAll() {
        this.callbacks.forEach(cb => cb());
        this.callbacks = [];
    }
}
exports.WaitGroup = WaitGroup;