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a5d396cd25
This is a re-land of "[vm/extensions] Fix Loader::ReloadNativeExtensions(...)." The native extension test was failing in hot-reload: this has been fixed. Change-Id: Ic18da8cfbc6a3dba8aac09d654dce616487a67d7 Reviewed-on: https://dart-review.googlesource.com/c/92800 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com> Auto-Submit: Samir Jindel <sjindel@google.com>
43 lines
1.2 KiB
Dart
43 lines
1.2 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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library sample_asynchronous_extension;
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import 'dart:async';
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import 'dart:isolate';
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import 'dart-ext:sample_extension';
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// A class caches the native port used to call an asynchronous extension.
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class RandomArray {
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static SendPort _port;
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Future<List<int>> randomArray(int seed, int length) {
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var completer = new Completer<List<int>>();
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var replyPort = new RawReceivePort();
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var args = new List(3);
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args[0] = seed;
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args[1] = length;
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args[2] = replyPort.sendPort;
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_servicePort.send(args);
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replyPort.handler = (result) {
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replyPort.close();
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if (result != null) {
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completer.complete(result);
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} else {
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completer.completeError(new Exception("Random array creation failed"));
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}
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};
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return completer.future;
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}
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SendPort get _servicePort {
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if (_port == null) {
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_port = _newServicePort();
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}
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return _port;
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}
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SendPort _newServicePort() native "RandomArray_ServicePort";
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}
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