@m-lab/ndt7/src/ndt7-download-worker.min.js

NDT7 client for measuring networks

"undefined"==typeof WebSocket&&(global.WebSocket=require("ws"));const workerMain=function(e){"use strict";const n=e.data["///ndt/v7/download"],t=new WebSocket(n,"net.measurementlab.ndt.v7");let o;o="undefined"!=typeof performance&&"function"==typeof performance.now?()=>performance.now():()=>Date.now(),downloadTest(t,postMessage,o)},downloadTest=function(e,n,t){e.onclose=function(){n({MsgType:"complete"})},e.onerror=function(e){n({MsgType:"error",Error:e.type})};let o=t(),s=o,a=0;e.onopen=function(){o=t(),s=o,a=0,n({MsgType:"start",Data:{ClientStartTime:o}})},e.onmessage=function(e){a+=void 0!==e.data.size?e.data.size:e.data.length;const r=t();r-s>250&&(n({MsgType:"measurement",ClientData:{ElapsedTime:(r-o)/1e3,NumBytes:a,MeanClientMbps:a/(r-o)*.008},Source:"client"}),s=r),"string"==typeof e.data&&n({MsgType:"measurement",ServerMessage:e.data,Source:"server"})}};"undefined"!=typeof self?self.onmessage=workerMain:void 0!==this?this.onmessage=workerMain:"undefined"!=typeof onmessage&&(onmessage=workerMain);