관리-도구

편집 파일: inflight.js

var wrappy = require('wrappy') var reqs = Object.create(null) var once = require('once') module.exports = wrappy(inflight) function inflight (key, cb) { if (reqs[key]) { reqs[key].push(cb) return null } else { reqs[key] = [cb] return makeres(key) } } function makeres (key) { return once(function RES () { var cbs = reqs[key] var len = cbs.length var args = slice(arguments) for (var i = 0; i < len; i++) { cbs[i].apply(null, args) } if (cbs.length > len) { // added more in the interim. // de-zalgo, just in case, but don't call again. cbs.splice(0, len) process.nextTick(function () { RES.apply(null, args) }) } else { delete reqs[key] } }) } function slice (args) { var length = args.length var array = [] for (var i = 0; i < length; i++) array[i] = args[i] return array }