tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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onLine_worker.js (1510B)

      1 /*
      2 * Any copyright is dedicated to the Public Domain.
      3 * http://creativecommons.org/licenses/publicdomain/
      4 */
      5 
      6 importScripts("onLine_worker_head.js");
      7 
      8 var N_CHILDREN = 3;
      9 var children = [];
     10 var finishedChildrenCount = 0;
     11 var lastTest = false;
     12 
     13 for (var event of ["online", "offline"]) {
     14  addEventListener(
     15    event,
     16    makeHandler(
     17      "addEventListener('%1', ..., false)",
     18      event,
     19      1,
     20      "Parent Worker"
     21    ),
     22    false
     23  );
     24 }
     25 
     26 onmessage = function (e) {
     27  if (e.data === "lastTest") {
     28    children.forEach(function (w) {
     29      w.postMessage({ type: "lastTest" });
     30    });
     31    lastTest = true;
     32  }
     33 };
     34 
     35 function setupChildren(cb) {
     36  var readyCount = 0;
     37  for (var i = 0; i < N_CHILDREN; ++i) {
     38    var w = new Worker("onLine_worker_child.js");
     39    children.push(w);
     40 
     41    w.onerror = function (e) {
     42      info("Error creating child " + e.message);
     43    };
     44 
     45    w.onmessage = function (e) {
     46      if (e.data.type === "ready") {
     47        info("Got ready from child");
     48        readyCount++;
     49        if (readyCount === N_CHILDREN) {
     50          cb();
     51        }
     52      } else if (e.data.type === "finished") {
     53        finishedChildrenCount++;
     54 
     55        if (lastTest && finishedChildrenCount === N_CHILDREN) {
     56          postMessage({ type: "finished" });
     57          children = [];
     58          close();
     59        }
     60      } else if (e.data.type === "ok") {
     61        // Pass on test to page.
     62        postMessage(e.data);
     63      }
     64    };
     65  }
     66 }
     67 
     68 setupChildren(function () {
     69  postMessage({ type: "ready" });
     70 });