LibTest/isolate/Isolate/spawnUri_A01_t05.dart

/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion Future<Isolate> spawnUri(Uri uri, List<String> args, message)
 * Creates and spawns an isolate that runs the code from the library with the specified URI.
 * The isolate starts executing the top-level main function of the library with the given URI.
 * The target main may have one of the four following signatures:
 * main()
 * main(args)
 * main(args, message)
 * When present, the argument message is set to the initial message.
 * When present, the argument args is set to the provided args list.
 * Returns a future that will complete with an Isolate instance.
 * The isolate instance can be used to control the spawned isolate.
 * @description Checks that sending multiple messages works fine.
 * @author kaigorodov
 */
import "dart:isolate";
import "../../../Utils/expect.dart";
import "../../../Utils/async_utils.dart";

void main0() {
  var receivePort = new ReceivePort();
  SendPort sendPort;
  int n=10;
  
  asyncStart();
  Isolate.spawnUri(new Uri.file("spawnUri_A01_t05.dart"), [n-1], receivePort.sendPort);
  receivePort.listen((var message) {
    if (message is SendPort) {
      sendPort=message;
    } else {
      Expect.equals(n, message);
    }
    if (n>0) {
      n--;
      sendPort.send(n);
    } else {
      receivePort.close();
      asyncEnd();
    }
  });

}

void main(List args, SendPort replyPort) {
  if (replyPort==null) {
    main0();
    return;
  } 
  var receivePort = new ReceivePort();
  replyPort.send(receivePort.sendPort);

  receivePort.listen((var message) {
    replyPort.send(message);
    if (message==0) {
      receivePort.close();
    }
  });
}