diff --git a/test/jdk/java/foreign/jniSupport/TestJNISupport.java b/test/jdk/java/foreign/jniSupport/TestJNISupport.java new file mode 100644 index 0000000000000..78f316e98138b --- /dev/null +++ b/test/jdk/java/foreign/jniSupport/TestJNISupport.java @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @library ../ /test/lib + * @build NativeTestHelper + * @run testng/othervm --enable-native-access=ALL-UNNAMED TestJNISupport + */ + +import org.testng.annotations.Test; + +import java.lang.foreign.Arena; +import java.lang.foreign.JNISupport; +import java.lang.foreign.FunctionDescriptor; +import java.lang.foreign.MemorySegment; +import java.lang.invoke.MethodHandle; + +import static org.testng.Assert.*; + +public class TestJNISupport extends NativeTestHelper { + + static { + System.loadLibrary("JNISupport"); + } + + private record Widget(int x) {} + + @Test + public void testUpcallWithRef() throws Throwable { + MethodHandle upcallWithRef = downcallHandle("upcall_with_ref", FunctionDescriptor.ofVoid(C_POINTER, C_POINTER)); + + try (Arena arena = Arena.ofConfined()) { + MemorySegment ref = JNISupport.newGlobalRef(new Widget(42), arena); + MemorySegment stub = upcallStub(TestJNISupport.class, "target", FunctionDescriptor.ofVoid(C_POINTER)); + + upcallWithRef.invokeExact(ref, stub); + } + } + + public static void target(MemorySegment ref) { + Widget w = (Widget) JNISupport.resolveGlobalRef(ref); + + assertEquals(w.x(), 42); + } +} diff --git a/test/jdk/java/foreign/jniSupport/libJNISupport.c b/test/jdk/java/foreign/jniSupport/libJNISupport.c new file mode 100644 index 0000000000000..2a6f182913006 --- /dev/null +++ b/test/jdk/java/foreign/jniSupport/libJNISupport.c @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +#ifdef _WIN64 +#define EXPORT __declspec(dllexport) +#else +#define EXPORT +#endif + +EXPORT void upcall_with_ref(void* ref, void(*cb)(void*)) { + cb(ref); +}