blob: a6ce9a6f6510ede08ee575f2cd9f191a69dd2b04 [file] [log] [blame]
// 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.
// @dart = 2.9
import 'dart:ffi';
import 'package:expect/expect.dart';
import 'dylib_utils.dart';
void main() {
print('start main');
int counter = 0;
void closure() {
// C holds on to this closure through a `Dart_PersistenHandle`.
// Some time later this closure can be invoked.
Expect.equals(1, counter);
// When C is done it needs to stop holding on to the closure such that the
// Dart GC can collect the closure.
print('end main');
final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
final registerClosureCallback =
testLibrary.lookupFunction<Void Function(Handle), void Function(Object)>(
final invokeClosureCallback = testLibrary
.lookupFunction<Void Function(), void Function()>("InvokeClosureCallback");
final releaseClosureCallback = testLibrary
.lookupFunction<Void Function(), void Function()>("ReleaseClosureCallback");
void doClosureCallback(Object callback) {
final callback_as_function = callback as void Function();
final closureCallbackPointer =
Pointer.fromFunction<Void Function(Handle)>(doClosureCallback);
void doDynamicLinking() {
Expect.isTrue(NativeApi.majorVersion == 2);
Expect.isTrue(NativeApi.minorVersion >= 0);
final initializeApi = testLibrary.lookupFunction<
IntPtr Function(Pointer<Void>),
int Function(Pointer<Void>)>("InitDartApiDL");
Expect.isTrue(initializeApi(NativeApi.initializeApiDLData) == 0);
final registerClosureCallback = testLibrary.lookupFunction<
Void Function(Pointer),
void Function(Pointer)>("RegisterClosureCallbackFP");