Robert Nystrom
8a51cb6093
Change-Id: I8fafc8c2788faf848a8a8488b76cb163b7679308 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425330 Commit-Queue: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com>
43 lines
1.1 KiB
Dart
43 lines
1.1 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Example of spawning an isolate from a function.
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library spawn_tests;
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import 'dart:isolate';
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import 'package:expect/async_helper.dart';
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import 'package:expect/expect.dart';
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isolateEntryPoint(args) {
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var msg = args[0];
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var sendPort = args[1];
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sendPort.send('re: $msg');
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}
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Future<void> main([args, port]) async {
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// message - reply chain
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const String debugName = 'spawnedIsolate';
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ReceivePort port = new ReceivePort();
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asyncStart();
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port.listen((msg) {
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port.close();
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Expect.equals(msg, 're: hi');
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asyncEnd();
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});
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// Start new isolate; paused so it's alive till we read the debugName.
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// If the isolate runs to completion, the isolate might get cleaned up
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// and debugName might be null.
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final isolate = await Isolate.spawn(
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isolateEntryPoint,
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['hi', port.sendPort],
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paused: true,
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debugName: debugName,
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);
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Expect.equals(isolate.debugName, debugName);
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isolate.resume(isolate.pauseCapability!);
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}
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