hexo/node_modules/atomically/dist/utils/scheduler.js

36 lines
860 B
JavaScript

"use strict";
/* IMPORT */
Object.defineProperty(exports, "__esModule", { value: true });
/* VARIABLES */
const Queues = {};
/* SCHEDULER */
//TODO: Maybe publish this as a standalone package
const Scheduler = {
next: (id) => {
const queue = Queues[id];
if (!queue)
return;
queue.shift();
const job = queue[0];
if (job) {
job(() => Scheduler.next(id));
}
else {
delete Queues[id];
}
},
schedule: (id) => {
return new Promise(resolve => {
let queue = Queues[id];
if (!queue)
queue = Queues[id] = [];
queue.push(resolve);
if (queue.length > 1)
return;
resolve(() => Scheduler.next(id));
});
}
};
/* EXPORT */
exports.default = Scheduler;