| <body> |
| <p>Test that MessagePort messages are delivered even if both ports are in transit (cloned).</p> |
| <p>Should say PASS twice.</p> |
| <pre id=log></pre> |
| <script> |
| function gc() |
| { |
| if (window.GCController) |
| return GCController.collect(); |
| |
| for (var i = 0; i < 10000; i++) { // force garbage collection (FF requires about 9K allocations before a collect) |
| var s = new String("abc"); |
| } |
| } |
| |
| function log(message) |
| { |
| document.getElementById("log").innerHTML += message + "<br>"; |
| } |
| |
| if (window.layoutTestController) { |
| layoutTestController.dumpAsText(); |
| layoutTestController.waitUntilDone(); |
| } |
| |
| function test1() |
| { |
| var channel = new MessageChannel; |
| var channel2 = new MessageChannel; |
| channel.port1.postMessage("msg1"); |
| channel2.port1.postMessage("", channel.port1); |
| channel2.port2.postMessage("", channel.port2); |
| channel2.port2.onmessage = channel2.port1.onmessage = function(evt) { |
| evt.messagePort.onmessage = function(event) { |
| if (event.data == "msg1") { |
| log("PASS: Received message to cloned port."); |
| this.postMessage("msg2"); |
| gc(); |
| } else if (event.data == "msg2") { |
| log("PASS: Received message from cloned port."); |
| gc(); |
| if (window.layoutTestController) |
| layoutTestController.notifyDone(); |
| } else { |
| log("FAIL: Received unknown message: " + event.data); |
| } |
| } |
| evt.messagePort = 0; |
| } |
| channel = 0; |
| channel2 = 0; |
| gc(); |
| } |
| |
| test1(); |
| |
| </script> |
| </body> |
