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// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source is governed by a
// BSD-style license that can be found in the LICENSE file.
import "dart:isolate";
import "dart:async";
import "package:async_helper/async_helper.dart";
void isomain(SendPort replyPort) {
RawReceivePort port = new RawReceivePort();
port.handler = (v) {
if (v == 0) {
// Shut down when receiving the 0 message.
port.close();
} else {
replyPort.send(v);
}
};
replyPort.send(port.sendPort);
}
void main() {
testExit();
testCancelExit();
testOverrideResponse();
}
void testExit() {
bool mayComplete = false;
asyncStart();
var completer = new Completer(); // Completed by first reply from isolate.
RawReceivePort reply = new RawReceivePort(completer.complete);
RawReceivePort onExitPort;
onExitPort = new RawReceivePort((v) {
if (v != "RESPONSE") throw "WRONG RESPONSE: $v";
reply.close();
onExitPort.close();
if (!mayComplete) throw "COMPLETED EARLY";
asyncEnd();
});
Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE");
return completer.future;
}).then((echoPort) {
int counter = 4;
reply.handler = (v) {
if (v != counter) throw "WRONG REPLY";
if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
counter--;
mayComplete = (counter == 0);
echoPort.send(counter);
};
echoPort.send(counter);
});
}
void testCancelExit() {
bool mayComplete = false;
asyncStart();
var completer = new Completer(); // Completed by first reply from isolate.
RawReceivePort reply = new RawReceivePort(completer.complete);
RawReceivePort onExitPort2 = new RawReceivePort((_) {
throw "RECEIVED EXIT MESSAGE";
});
RawReceivePort onExitPort1;
onExitPort1 = new RawReceivePort((_) {
reply.close();
onExitPort1.close();
if (!mayComplete) throw "COMPLETED EARLY";
new Timer(const Duration(milliseconds: 0), () {
onExitPort2.close();
asyncEnd();
});
});
Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
isolate.addOnExitListener(onExitPort2.sendPort);
isolate.addOnExitListener(onExitPort1.sendPort);
return completer.future.then((echoPort) {
int counter = 4;
reply.handler = (v) {
if (v != counter) throw "WRONG REPLY";
if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
counter--;
mayComplete = (counter == 0);
if (counter == 1) {
// Remove listener 2, keep listener 1.
isolate.removeOnExitListener(onExitPort2.sendPort);
}
echoPort.send(counter);
};
echoPort.send(counter);
});
});
}
void testOverrideResponse() {
bool mayComplete = false;
asyncStart();
var completer = new Completer(); // Completed by first reply from isolate.
RawReceivePort reply = new RawReceivePort(completer.complete);
RawReceivePort onExitPort;
onExitPort = new RawReceivePort((v) {
if (v != "RESPONSE2") throw "WRONG RESPONSE: $v";
reply.close();
onExitPort.close();
if (!mayComplete) throw "COMPLETED EARLY";
asyncEnd();
});
Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE");
isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE2");
return completer.future;
}).then((echoPort) {
int counter = 4;
reply.handler = (v) {
if (v != counter) throw "WRONG REPLY";
if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
counter--;
mayComplete = (counter == 0);
echoPort.send(counter);
};
echoPort.send(counter);
});
}