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>
48 lines
1.3 KiB
Dart
48 lines
1.3 KiB
Dart
// Copyright (c) 2014, 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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import "dart:isolate";
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import "dart:async";
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import "package:expect/async_helper.dart";
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isomain1(replyPort) {
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RawReceivePort port = new RawReceivePort();
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port.handler = (v) {
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replyPort.send(v);
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port.close();
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};
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replyPort.send(port.sendPort);
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}
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main() {
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asyncStart();
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RawReceivePort reply = new RawReceivePort();
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late Isolate isolate;
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late Capability resume;
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var completer = new Completer(); // Completed by first reply from isolate.
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reply.handler = completer.complete;
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Isolate.spawn(isomain1, reply.sendPort)
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.then((Isolate iso) {
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isolate = iso;
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return completer.future;
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})
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.then((echoPort) {
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// Isolate has been created, and first response has been returned.
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resume = isolate.pause();
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echoPort.send(24);
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reply.handler = (v) {
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throw "RESPONSE WHILE PAUSED?!?";
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};
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return new Future.delayed(const Duration(milliseconds: 250));
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})
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.then((_) {
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reply.handler = (v) {
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if (v != 24) throw "WRONG ANSWER!";
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reply.close();
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asyncEnd();
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};
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isolate.resume(resume);
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});
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}
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