blob: bb7d64fdc4445dbaf6c2f2fa530f8cbe359a3620 [file] [log] [blame]
// Copyright (c) 2017, 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.
/// @assertion void ping(
/// SendPort responsePort, {
/// Object response,
/// int priority: IMMEDIATE
/// })
/// Request that the isolate send response on the responsePort.
/// If the isolate is alive, it will eventually send response (defaulting
/// to null) on the response port.
/// The priority must be one of IMMEDIATE or BEFORE_NEXT_EVENT. The response
/// is sent at different times depending on the ping type:
/// * IMMEDIATE: The isolate responds as soon as it receives the control
/// message. This is after any previous control message from the same isolate
/// has been received, but may be during execution of another event.
/// * BEFORE_NEXT_EVENT: The response is scheduled for the next time control
/// returns to the event loop of the receiving isolate, after the current event,
/// and any already scheduled control events, are completed.
/// If response cannot be sent to the isolate, then the request is ignored.
/// It is recommended to only use simple values that can be sent to all isolates,
/// like null, booleans, numbers or strings.
/// @description Check that isolate sends response null after ping() call with
/// given response port and priority IMMEDIATE. The isolate is continuously
/// running.
/// @author
import "dart:isolate";
import "dart:math";
import "../../../Utils/expect.dart";
Random random = new Random();
int s = 0;
while (true){
s = -s + random.nextInt(100);
test() async {
ReceivePort onExit = new ReceivePort();
Isolate isolate = await Isolate.spawn(
null, // message
// check
ReceivePort pingPort = new ReceivePort();, priority:Isolate.immediate);
Expect.isNull(await pingPort.first);
// clean up
await onExit.first;
main() {