| // Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| import 'dart:isolate'; |
| |
| import 'helpers.dart'; |
| |
| int callbackCount = 0; |
| |
| void callback(Nonce token) { |
| callbackCount++; |
| print('$name: Running finalizer: token: $token'); |
| } |
| |
| final finalizer = Finalizer<Nonce>(callback); |
| |
| String name; |
| |
| void main(List<String> arguments, SendPort port) async { |
| name = arguments[0]; |
| |
| final token = Nonce(42); |
| makeObjectWithFinalizer(finalizer, token); |
| |
| final awaitBeforeShuttingDown = ReceivePort(); |
| port.send(awaitBeforeShuttingDown.sendPort); |
| final message = await awaitBeforeShuttingDown.first; |
| print('$name: $message'); |
| |
| await Future.delayed(Duration(milliseconds: 1)); |
| print('$name: Awaited to see if there were any callbacks.'); |
| |
| print('$name: Helper isolate exiting. num callbacks: $callbackCount.'); |
| port.send(callbackCount); |
| } |