dart-sdk/tests/ffi/dylib_isolates_test.dart
Daco Harkes 312a572ade [vm/ffi] Fix prepare_flutter_bundle.dart
It now includes /ffi_test_functions_generated.cc and prints
instructions on how to use the generated bundle.

This CL adds some TODOs and deletes the non-migrated copy that was in
the NNBD folder.

Finally, this CL disable a check that fails because of static linking
on iOS.

Issue https://github.com/dart-lang/sdk/issues/39570.

Change-Id: Ie85d92568bb95eaafd2991725a1a31cdecd246be
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169402
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-10-28 21:33:35 +00:00

44 lines
1.4 KiB
Dart

// Copyright (c) 2020, 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.
//
// Test for DynamicLibrary.open behavior on multiple isolates.
//
// SharedObjects=ffi_test_functions
import 'dart:ffi';
import 'dart:io';
import 'dart:isolate';
import "package:expect/expect.dart";
import 'dylib_utils.dart';
void main() async {
final dl = dlopenPlatformSpecific('ffi_test_functions');
final dl2 = dlopenPlatformSpecific('ffi_test_functions');
Expect.equals(dl, dl2);
Expect.isFalse(identical(dl, dl2));
final setGlobalVar = dl
.lookupFunction<Void Function(Int32), void Function(int)>('SetGlobalVar');
final getGlobalVar =
dl.lookupFunction<Int32 Function(), int Function()>('GetGlobalVar');
setGlobalVar(123);
Expect.equals(123, getGlobalVar());
final receivePort = ReceivePort();
Isolate.spawn(secondIsolateMain, receivePort.sendPort);
await receivePort.first;
if (!Platform.isIOS /* Static linking causes different behavior. */) {
Expect.equals(42, getGlobalVar());
}
}
void secondIsolateMain(SendPort sendPort) {
final dl = dlopenPlatformSpecific('ffi_test_functions');
final setGlobalVar = dl
.lookupFunction<Void Function(Int32), void Function(int)>('SetGlobalVar');
setGlobalVar(42);
sendPort.send('done');
}