Files
sdk/tests/lib/isolate/cross_isolate_message_test.dart
T
Martin Kustermann 96d40d1caa [vm/concurrency] Remove --(no-)enable-isolate-groups flag usage in tests
This is a preparation CL to remove the --enable-isolate-groups flag in
the VM.

The following tests were only running in --no-enable-isolate-groups and
are therefore obsolete now:

  - runtime/tests/vm/dart/regress_47468_test.dart
  - runtime/tests/vm/dart_2/regress_47468_test.dart
  - tests/lib/isolate/illegal_msg_function_test.dart
  - tests/lib_2/isolate/illegal_msg_function_test.dart

TEST=Changes tests only.

Change-Id: I6257cb667eebca66a649614d3010139dd2cdd3ab
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/219100
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-11-04 18:57:21 +00:00

59 lines
1.8 KiB
Dart

// Copyright (c) 2012, 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.
// Dart test program for testing that isolates can communicate to isolates
// other than the main isolate.
library CrossIsolateMessageTest;
import 'dart:isolate';
import 'package:async_helper/async_helper.dart';
import 'package:expect/expect.dart';
/*
* Everything starts in the main-isolate (in the main-method).
* The main isolate spawns two isolates: isolate1 (with entry point
* 'crossIsolate1') and isolate2 (with entry point 'crossIsolate2').
*
* The main isolate creates two isolates, isolate1 and isolate2.
* The second isolate is created with a send-port being listened on by
* isolate1. A message is passed along this from isolate2 to isolate1.
* Isolate1 then sends the result back to the main isolate for final checking.
*/
void crossIsolate1(SendPort mainIsolate) {
ReceivePort local = new ReceivePort();
mainIsolate.send(["ready1", local.sendPort]);
local.first.then((msg) {
// Message from crossIsolate2
Expect.equals(msg[0], "fromIsolate2");
mainIsolate.send(["fromIsolate1", msg[1] + 58]); // 100.
});
}
void crossIsolate2(SendPort toIsolate1) {
toIsolate1.send(["fromIsolate2", 42]);
}
void main([args, port]) {
ReceivePort fromIsolate1 = new ReceivePort();
Isolate.spawn(crossIsolate1, fromIsolate1.sendPort);
asyncStart();
fromIsolate1.listen((msg) {
switch (msg[0]) {
case "ready1":
SendPort toIsolate1 = msg[1];
Isolate.spawn(crossIsolate2, toIsolate1);
break;
case "fromIsolate1":
Expect.equals(msg[1], 100);
fromIsolate1.close();
break;
default:
Expect.fail("unreachable! Tag: ${msg[0]}");
}
}, onDone: asyncEnd);
}