Alexander Aprelev
6b3abe0a98
Issue b/177800357. TEST=existing test suite Change-Id: Id6b113932ab7014b8fa6c105845c5c490b60f5e8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/181320 Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
84 lines
2.4 KiB
Dart
84 lines
2.4 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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// VMOptions=--enable-isolate-groups --experimental-enable-isolate-groups-jit
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// VMOptions=--no-enable-isolate-groups
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// spawns multiple isolates and sends unresolved ports between them.
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library unresolved_ports;
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import 'dart:async';
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import 'dart:isolate';
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import 'package:async_helper/async_helper.dart';
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import 'package:expect/expect.dart';
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// This test does the following:
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// - main spawns two isolates: 'tim' and 'beth'
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// - 'tim' spawns an isolate: 'bob'
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// - main starts a message chain:
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// main -> beth -> tim -> bob -> main
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// by giving 'beth' a send-port to 'tim'.
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bethIsolate(init) {
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ReceivePort port = initIsolate(init);
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// TODO(sigmund): use expectAsync when it is OK to use it within an isolate
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// (issue #6856)
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port.first.then((msg) => msg[1]
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.send(['${msg[0]}\nBeth says: Tim are you coming? And Bob?', msg[2]]));
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}
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timIsolate(init) {
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ReceivePort port = initIsolate(init);
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spawnFunction(bobIsolate).then((bob) {
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port.first.then((msg) => bob.send([
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'${msg[0]}\nTim says: Can you tell "main" that we are all coming?',
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msg[1]
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]));
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});
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}
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bobIsolate(init) {
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ReceivePort port = initIsolate(init);
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port.first
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.then((msg) => msg[1].send('${msg[0]}\nBob says: we are all coming!'));
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}
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Future spawnFunction(function) {
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ReceivePort init = new ReceivePort();
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Isolate.spawn(function, init.sendPort);
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return init.first;
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}
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ReceivePort initIsolate(SendPort starter) {
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ReceivePort port = new ReceivePort();
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starter.send(port.sendPort);
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return port;
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}
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baseTest({bool failForNegativeTest: false}) {
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// Message chain with unresolved ports
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ReceivePort port = new ReceivePort();
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asyncStart();
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port.listen((msg) {
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Expect.equals(
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msg,
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'main says: Beth, find out if Tim is coming.'
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'\nBeth says: Tim are you coming? And Bob?'
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'\nTim says: Can you tell "main" that we are all coming?'
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'\nBob says: we are all coming!');
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Expect.isFalse(failForNegativeTest);
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port.close();
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asyncEnd();
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});
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spawnFunction(timIsolate).then((tim) {
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spawnFunction(bethIsolate).then((beth) {
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beth.send(
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['main says: Beth, find out if Tim is coming.', tim, port.sendPort]);
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});
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});
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}
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void main([args, port]) => baseTest();
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