File: many_shared_workers.html

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<html>
<head>
<script src="worker_utils.js"></script>
</head>
<body>
<div id=result></div>
<script>
function log(message)
{
  document.getElementById("result").innerHTML += message + "<br>";
}

var url = document.location.toString();
var num_workers = parseInt(url.substr(url.search("count=") + 6));
var client_id = parseInt(url.substr(url.search("client_id=") + 10));

if (!num_workers) {
  log("No count= parameter provided - test aborted");
}

for (var i = 0; i < num_workers ; ++i) {
  createWorker(i);
}

var workers_created = 0;
function createWorker(i) {
  var worker_id = !!client_id ? client_id * num_workers + i : i;
  var worker = new SharedWorker("worker_common.js?id=" + worker_id);
  worker.port.postMessage("eval num_clients");
  worker.port.onmessage = function(event) {
    workers_created++;
    log("worker " + worker_id + " started - num_clients = " + event.data);
    if (workers_created == num_workers) {
      // created the last worker
      log("SUCCESS: all workers created");
      onSuccess();
    }
  }
}
</script>

</body>
</html>