blob: 4a57f13b487a79e976af018902612de396d80785 [file] [log] [blame]
 // Copyright (c) 2019, 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:ffi/ffi.dart'; import 'coordinate.dart'; import 'dylib_utils.dart'; typedef NativeCoordinateOp = Pointer Function(Pointer); typedef CoordinateTrice = Pointer Function( Pointer>, Pointer); typedef BinaryOp = int Function(int, int); typedef NativeIntptrBinOp = IntPtr Function(IntPtr, IntPtr); typedef NativeIntptrBinOpLookup = Pointer> Function(); typedef NativeApplyTo42And74Type = IntPtr Function( Pointer>); typedef ApplyTo42And74Type = int Function( Pointer>); int myPlus(int a, int b) { print("myPlus"); print(a); print(b); return a + b; } main() { print('start main'); DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions"); { // Pass a c pointer to a c function as an argument to a c function. Pointer> transposeCoordinatePointer = ffiTestFunctions.lookup("TransposeCoordinate"); Pointer> p2 = ffiTestFunctions.lookup("CoordinateUnOpTrice"); CoordinateTrice coordinateUnOpTrice = p2.asFunction(); final c1 = calloc() ..ref.x = 10.0 ..ref.y = 20.0; c1.ref.next = c1; Coordinate result = coordinateUnOpTrice(transposeCoordinatePointer, c1).ref; print(result.runtimeType); print(result.x); print(result.y); calloc.free(c1); } { // Return a c pointer to a c function from a c function. Pointer> p14 = ffiTestFunctions.lookup("IntptrAdditionClosure"); NativeIntptrBinOpLookup intptrAdditionClosure = p14.asFunction(); Pointer> intptrAdditionPointer = intptrAdditionClosure(); BinaryOp intptrAddition = intptrAdditionPointer.asFunction(); print(intptrAddition(10, 27)); } { Pointer> pointer = Pointer.fromFunction(myPlus, 0); print(pointer); Pointer> p17 = ffiTestFunctions.lookup("ApplyTo42And74"); ApplyTo42And74Type applyTo42And74 = p17.asFunction(); int result = applyTo42And74(pointer); print(result); } print("end main"); }