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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 code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
// VMOptions=--no-enable-fast-object-copy
// VMOptions=--enable-fast-object-copy
library isolate_current_test;
import "dart:isolate";
import "dart:async";
import "package:expect/expect.dart";
import "package:async_helper/async_helper.dart";
void main() {
asyncStart();
Expect.isNotNull(Isolate.current);
// Sending controlPort and capabilities as list.
testSend(i2l, l2i);
testSpawnReturnVsCurrent(true);
testSpawnReturnVsCurrent2(true);
// Sending Isolate itself.
testSend(id, id);
testSpawnReturnVsCurrent(false);
testSpawnReturnVsCurrent2(false);
asyncEnd();
}
/** Test sending the isolate data or isolate through a [SendPort]. */
void testSend(i2l, l2i) {
asyncStart();
RawReceivePort p = new RawReceivePort();
Isolate isolate = Isolate.current;
p.handler = (list) {
var isolate2 = l2i(list);
Expect.equals(isolate.controlPort, isolate2.controlPort);
Expect.equals(isolate.pauseCapability, isolate2.pauseCapability);
Expect.equals(isolate.terminateCapability, isolate2.terminateCapability);
p.close();
asyncEnd();
};
p.sendPort.send(i2l(isolate));
}
/**
* Test that the isolate returned by [Isolate.spawn] is the same as
* the one returned by [Isolate.current] in the spawned isolate.
* Checked in the spawning isolate.
*/
void testSpawnReturnVsCurrent(bool asList) {
asyncStart();
Function transform = asList ? l2i : id;
Completer response = new Completer();
var p = new RawReceivePort();
p.handler = (v) {
response.complete(transform(v));
p.close();
};
Isolate.spawn(replyCurrent, [p.sendPort, asList]).then((Isolate isolate) {
return response.future.then((isolate2) {
expectIsolateEquals(isolate, isolate2 as Isolate);
asyncEnd();
});
});
}
void replyCurrent(args) {
SendPort responsePort = args[0];
Function transform = args[1] ? i2l : id;
responsePort.send(transform(Isolate.current));
}
/**
* Test that the isolate returned by [Isolate.spawn] is the same as
* the one returned by [Isolate.current] in the spawned isolate.
* Checked in the spawned isolate.
*/
void testSpawnReturnVsCurrent2(bool asList) {
asyncStart();
Function transform = asList ? i2l : id;
Completer response = new Completer();
var p = new RawReceivePort();
int state = 0;
p.handler = (v) {
switch (state) {
case 0:
response.complete(v);
state++;
break;
case 1:
p.close();
Expect.isTrue(v);
asyncEnd();
}
};
Isolate.spawn(expectCurrent, [p.sendPort, asList]).then((Isolate isolate) {
return response.future.then((port) {
(port as SendPort).send(transform(isolate));
});
});
}
void expectCurrent(args) {
SendPort responsePort = args[0];
Function transform = args[1] ? l2i : id;
RawReceivePort port = new RawReceivePort();
port.handler = (isoData) {
Isolate isolate2 = transform(isoData);
port.close();
Isolate isolate = Isolate.current;
expectIsolateEquals(isolate, isolate2);
responsePort.send(true);
};
responsePort.send(port.sendPort);
}
/** Convert isolate to list (of control port and capabilities). */
i2l(Isolate isolate) =>
[isolate.controlPort, isolate.pauseCapability, isolate.terminateCapability];
/** Convert list to isolate. */
l2i(List list) => new Isolate(list[0],
pauseCapability: list[1], terminateCapability: list[2]);
/** Identity transformation. */
id(Isolate isolate) => isolate;
void expectIsolateEquals(Isolate expect, Isolate actual) {
Expect.equals(expect.controlPort, actual.controlPort);
Expect.equals(expect.pauseCapability, actual.pauseCapability);
Expect.equals(expect.terminateCapability, actual.terminateCapability);
}