32ac72c3d3
Co-authored-by: Maurizio Cimadamore <mcimadamore@openjdk.org> Co-authored-by: Jorn Vernee <jvernee@openjdk.org> Co-authored-by: Per Minborg <pminborg@openjdk.org> Reviewed-by: dholmes, psandoz, mcimadamore, alanb
89 lines
3.2 KiB
Java
89 lines
3.2 KiB
Java
/*
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* Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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/*
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* @test
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*
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* @run testng/othervm/native
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* --enable-native-access=ALL-UNNAMED
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* -Djdk.internal.foreign.DowncallLinker.USE_SPEC=false
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* TestUpcallStructScope
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* @run testng/othervm/native
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* --enable-native-access=ALL-UNNAMED
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* -Djdk.internal.foreign.DowncallLinker.USE_SPEC=true
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* TestUpcallStructScope
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*/
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import java.lang.foreign.*;
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import org.testng.annotations.Test;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import java.util.concurrent.atomic.AtomicReference;
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import java.util.function.Consumer;
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import static org.testng.Assert.assertFalse;
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public class TestUpcallStructScope extends NativeTestHelper {
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static final MethodHandle MH_do_upcall;
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static final MethodHandle MH_Consumer_accept;
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static {
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System.loadLibrary("TestUpcallStructScope");
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MH_do_upcall = LINKER.downcallHandle(
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findNativeOrThrow("do_upcall"),
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FunctionDescriptor.ofVoid(C_POINTER, S_PDI_LAYOUT)
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);
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try {
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MH_Consumer_accept = MethodHandles.publicLookup().findVirtual(Consumer.class, "accept",
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MethodType.methodType(void.class, Object.class));
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} catch (NoSuchMethodException | IllegalAccessException e) {
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throw new RuntimeException(e);
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}
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}
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private static MethodHandle methodHandle (Consumer<MemorySegment> callback) {
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return MH_Consumer_accept.bindTo(callback).asType(MethodType.methodType(void.class, MemorySegment.class));
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}
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@Test
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public void testUpcall() throws Throwable {
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AtomicReference<MemorySegment> capturedSegment = new AtomicReference<>();
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MethodHandle target = methodHandle(capturedSegment::set);
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FunctionDescriptor upcallDesc = FunctionDescriptor.ofVoid(S_PDI_LAYOUT);
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try (Arena arena = Arena.ofConfined()) {
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MemorySegment upcallStub = LINKER.upcallStub(target, upcallDesc, arena);
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MemorySegment argSegment = arena.allocate(S_PDI_LAYOUT);
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MH_do_upcall.invoke(upcallStub, argSegment);
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}
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MemorySegment captured = capturedSegment.get();
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assertFalse(captured.scope().isAlive());
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}
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}
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