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
82 lines
3.0 KiB
Java
82 lines
3.0 KiB
Java
/*
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* Copyright (c) 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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* @test
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* @library ../ /test/lib
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* @run testng/othervm --enable-native-access=ALL-UNNAMED TestCritical
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*/
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import org.testng.annotations.Test;
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import java.lang.foreign.Arena;
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import java.lang.foreign.FunctionDescriptor;
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import java.lang.foreign.Linker;
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import java.lang.foreign.MemoryLayout;
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import java.lang.foreign.MemorySegment;
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import java.lang.foreign.SegmentAllocator;
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import java.lang.foreign.StructLayout;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.VarHandle;
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import static org.testng.Assert.assertEquals;
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public class TestCritical extends NativeTestHelper {
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static {
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System.loadLibrary("Critical");
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}
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@Test
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public void testEmpty() throws Throwable {
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MethodHandle handle = downcallHandle("empty", FunctionDescriptor.ofVoid(), Linker.Option.critical());
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handle.invokeExact();
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}
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@Test
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public void testIdentity() throws Throwable {
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MethodHandle handle = downcallHandle("identity", FunctionDescriptor.of(C_INT, C_INT), Linker.Option.critical());
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int result = (int) handle.invokeExact(42);
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assertEquals(result, 42);
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}
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@Test
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public void testWithReturnBuffer() throws Throwable {
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StructLayout bigLayout = MemoryLayout.structLayout(
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C_LONG_LONG.withName("x"),
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C_LONG_LONG.withName("y"));
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MethodHandle handle = downcallHandle("with_return_buffer", FunctionDescriptor.of(bigLayout), Linker.Option.critical());
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VarHandle vhX = bigLayout.varHandle(MemoryLayout.PathElement.groupElement("x"));
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VarHandle vhY = bigLayout.varHandle(MemoryLayout.PathElement.groupElement("y"));
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try (Arena arena = Arena.ofConfined()) {
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MemorySegment result = (MemorySegment) handle.invokeExact((SegmentAllocator) arena);
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long x = (long) vhX.get(result, 0L);
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assertEquals(x, 10);
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long y = (long) vhY.get(result, 0L);
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assertEquals(y, 11);
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}
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}
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}
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