mirror of
https://github.com/dart-lang/sdk
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91e105d8c6
Added: * addOnExitListener, removeOnExitListener * setErrorsFatal * addOnErrorListener, removeOnErrorListener R=asiva@google.com Review URL: https://codereview.chromium.org//881373002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44307 260f80e4-7a28-3924-810f-c04153c831b5
89 lines
2.4 KiB
Dart
89 lines
2.4 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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library handle_error_test;
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import "dart:isolate";
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import "dart:async";
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import "package:async_helper/async_helper.dart";
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import "package:expect/expect.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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switch (v) {
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case 0:
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replyPort.send(42);
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break;
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case 1:
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throw new ArgumentError("whoops");
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case 2:
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throw new RangeError.value(37);
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case 3:
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port.close();
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}
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};
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replyPort.send(port.sendPort);
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}
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/// Do Isolate.spawn(entry) and get a sendPort from the isolate that it
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/// expects commands on.
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/// The isolate has errors set to non-fatal.
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/// Returns a list of `[isolate, commandPort]` in a future.
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Future spawn(entry) {
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ReceivePort reply = new ReceivePort();
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Future isolate = Isolate.spawn(entry, reply.sendPort, paused: true);
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return isolate.then((Isolate isolate) {
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isolate.setErrorsFatal(false);
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isolate.resume(isolate.pauseCapability);
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Future result = reply.first.then((sendPort) {
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return [isolate, sendPort];
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});
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return result;
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});
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}
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main(){
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asyncStart();
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RawReceivePort reply = new RawReceivePort(null);
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// Create two isolates waiting for commands, with errors non-fatal.
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Future iso1 = spawn(isomain1);
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Future iso2 = spawn(isomain1);
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Future.wait([iso1, iso2]).then((l) {
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var isolate1 = l[0][0];
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var sendPort1 = l[0][1];
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var isolate2 = l[1][0];
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var sendPort2 = l[1][1];
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Stream errors = isolate1.errors; // Broadcast stream, never a done message.
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int state = 1;
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var subscription;
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subscription = errors.listen(null, onError: (error, stack) {
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switch (state) {
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case 1:
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Expect.equals(new ArgumentError("whoops").toString(), "$error");
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state++;
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break;
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case 2:
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Expect.equals(new RangeError.value(37).toString(), "$error");
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state++;
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reply.close();
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subscription.cancel();
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asyncEnd();
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break;
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default:
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throw "Bad state for error: $state: $error";
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}
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});
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sendPort1.send(0);
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sendPort2.send(0);
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sendPort1.send(1);
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sendPort2.send(1);
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sendPort1.send(2);
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sendPort2.send(2);
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sendPort1.send(3);
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sendPort2.send(3);
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});
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}
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