michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  */
michael@0: 
michael@0: importScripts("onLine_worker_head.js");
michael@0: 
michael@0: var N_CHILDREN = 3;
michael@0: var children = [];
michael@0: var finishedChildrenCount = 0;
michael@0: var lastTest = false;
michael@0: 
michael@0: for (var event of ["online", "offline"]) {
michael@0:   addEventListener(event,
michael@0:                    makeHandler(
michael@0:                      "addEventListener('%1', ..., false)",
michael@0:                      event, 1, "Parent Worker"),
michael@0:                    false);
michael@0: }
michael@0: 
michael@0: onmessage = function(e) {
michael@0:   if (e.data === 'lastTest') {
michael@0:     children.forEach(function(w) {
michael@0:       w.postMessage({ type: 'lastTest' });
michael@0:     });
michael@0:     lastTest = true;
michael@0:   }
michael@0: }
michael@0: 
michael@0: function setupChildren(cb) {
michael@0:   var readyCount = 0;
michael@0:   for (var i = 0; i < N_CHILDREN; ++i) {
michael@0:     var w = new Worker("onLine_worker_child.js");
michael@0:     children.push(w);
michael@0: 
michael@0:     w.onerror = function(e) {
michael@0:       info("Error creating child " + e.message);
michael@0:     }
michael@0: 
michael@0:     w.onmessage = function(e) {
michael@0:       if (e.data.type === 'ready') {
michael@0:         info("Got ready from child");
michael@0:         readyCount++;
michael@0:         if (readyCount === N_CHILDREN) {
michael@0:           cb();
michael@0:         }
michael@0:       } else if (e.data.type === 'finished') {
michael@0:         finishedChildrenCount++;
michael@0: 
michael@0:         if (lastTest && finishedChildrenCount === N_CHILDREN) {
michael@0:           postMessage({ type: 'finished' });
michael@0:           children = [];
michael@0:           close();
michael@0:         }
michael@0:       } else if (e.data.type === 'ok') {
michael@0:         // Pass on test to page.
michael@0:         postMessage(e.data);
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: setupChildren(function() {
michael@0:   postMessage({ type: 'ready' });
michael@0: });