1function getFileStream(filename)
2{
3  // Get the location of this sjs file, and then use that to figure out where
4  // to find where our other files are.
5  var self = Components.classes["@mozilla.org/file/local;1"]
6                       .createInstance(Components.interfaces.nsIFile);
7  self.initWithPath(getState("__LOCATION__"));
8  var file = self.parent;
9  file.append(filename);
10  dump(file.path + "\n");
11
12  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
13                     .createInstance(Components.interfaces.nsIFileInputStream);
14  fileStream.init(file, 1, 0, false);
15
16  return fileStream;
17}
18
19var gTimer;
20
21function handleRequest(request, response)
22{
23  response.processAsync();
24  response.setStatusLine(request.httpVersion, 200, "OK");
25  response.setHeader("Content-Type", "image/gif", false);
26
27  var firststream = getFileStream("threeframes-start.gif");
28  response.bodyOutputStream.writeFrom(firststream, firststream.available())
29  firststream.close();
30
31  gTimer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
32  gTimer.initWithCallback(function()
33  {
34    var secondstream = getFileStream("threeframes-end.gif");
35    response.bodyOutputStream.writeFrom(secondstream, secondstream.available())
36    secondstream.close();
37    response.finish();
38
39    // This time needs to be longer than the animation timer in
40    // threeframes-start.gif. That's specified as 100ms; just use 5 seconds as
41    // a reasonable upper bound. Since this is just a crashtest, timeouts
42    // aren't a big deal.
43  }, 5 * 1000 /* milliseconds */, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
44}
45