| // 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. |
| // |
| // SharedObjects=ffi_test_functions |
| // |
| // VMOptions=--optimization-counter-threshold=200 |
| |
| import 'dart:ffi'; |
| |
| import 'dylib_utils.dart'; |
| |
| final class MyStruct extends Struct { |
| @Int8() |
| external int a; |
| } |
| |
| typedef _c_pass_struct = Int32 Function(Pointer<MyStruct>); |
| |
| typedef _dart_pass_struct = int Function(Pointer<MyStruct>); |
| |
| int pass_struct(Pointer<MyStruct> arg0) { |
| _pass_struct ??= ffiTestFunctions |
| .lookupFunction<_c_pass_struct, _dart_pass_struct>('PassStruct'); |
| return _pass_struct!.call(arg0); |
| } |
| |
| _dart_pass_struct? _pass_struct; |
| |
| final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions"); |
| |
| void main() { |
| for (int i = 0; i < 10000; i++) { |
| pass_struct(nullptr); |
| } |
| } |