Robert Nystrom
d3904f5a54
Change-Id: I6ccbe1494165c2bda142ece13584c4738e3b43e6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425347 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
68 lines
1.8 KiB
Dart
68 lines
1.8 KiB
Dart
// Copyright (c) 2013, 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 'package:expect/async_helper.dart';
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import 'package:expect/expect.dart';
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import 'dart:async';
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main() {
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Completer done = new Completer();
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List events = [];
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Expect.identical(Zone.root, Zone.current);
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Zone forked;
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forked = Zone.current.fork(
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specification: new ZoneSpecification(
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createPeriodicTimer:
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(
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Zone self,
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ZoneDelegate parent,
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Zone origin,
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Duration period,
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f(Timer timer),
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) {
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events.add("forked.createPeriodicTimer");
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return parent.createPeriodicTimer(origin, period, (Timer timer) {
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events.add("wrapped function ${period.inMilliseconds}");
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f(timer);
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});
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},
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),
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);
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asyncStart();
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int tickCount = 0;
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forked.run(() {
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new Timer.periodic(const Duration(milliseconds: 5), (Timer timer) {
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events.add("periodic Timer $tickCount");
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Expect.identical(forked, Zone.current);
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tickCount++;
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if (tickCount == 4) {
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timer.cancel();
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// Allow some time in case the cancel didn't work.
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new Timer(const Duration(milliseconds: 20), done.complete);
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}
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});
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});
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Expect.identical(Zone.root, Zone.current);
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events.add("after createPeriodicTimer");
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done.future.whenComplete(() {
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Expect.listEquals([
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"forked.createPeriodicTimer",
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"after createPeriodicTimer",
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"wrapped function 5",
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"periodic Timer 0",
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"wrapped function 5",
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"periodic Timer 1",
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"wrapped function 5",
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"periodic Timer 2",
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"wrapped function 5",
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"periodic Timer 3",
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], events);
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asyncEnd();
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});
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}
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