| // 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'); |
| } |