99 lines
3.8 KiB
Java
99 lines
3.8 KiB
Java
/*
|
|
* 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
|
|
* @enablePreview
|
|
* @library ../ /test/lib
|
|
* @requires jdk.foreign.linker != "UNSUPPORTED"
|
|
* @run testng/othervm --enable-native-access=ALL-UNNAMED TestTrivial
|
|
*/
|
|
|
|
import org.testng.annotations.Test;
|
|
|
|
import java.lang.foreign.Arena;
|
|
import java.lang.foreign.FunctionDescriptor;
|
|
import java.lang.foreign.Linker;
|
|
import java.lang.foreign.MemoryLayout;
|
|
import java.lang.foreign.MemorySegment;
|
|
import java.lang.foreign.SegmentAllocator;
|
|
import java.lang.foreign.StructLayout;
|
|
import java.lang.invoke.MethodHandle;
|
|
import java.lang.invoke.VarHandle;
|
|
|
|
import static org.testng.Assert.assertEquals;
|
|
|
|
public class TestTrivial extends NativeTestHelper {
|
|
|
|
static {
|
|
System.loadLibrary("Trivial");
|
|
}
|
|
|
|
@Test
|
|
public void testEmpty() throws Throwable {
|
|
MethodHandle handle = downcallHandle("empty", FunctionDescriptor.ofVoid(), Linker.Option.isTrivial());
|
|
handle.invokeExact();
|
|
}
|
|
|
|
@Test
|
|
public void testIdentity() throws Throwable {
|
|
MethodHandle handle = downcallHandle("identity", FunctionDescriptor.of(C_INT, C_INT), Linker.Option.isTrivial());
|
|
int result = (int) handle.invokeExact(42);
|
|
assertEquals(result, 42);
|
|
}
|
|
|
|
@Test
|
|
public void testWithReturnBuffer() throws Throwable {
|
|
StructLayout bigLayout = MemoryLayout.structLayout(
|
|
C_LONG_LONG.withName("x"),
|
|
C_LONG_LONG.withName("y"));
|
|
|
|
MethodHandle handle = downcallHandle("with_return_buffer", FunctionDescriptor.of(bigLayout), Linker.Option.isTrivial());
|
|
VarHandle vhX = bigLayout.varHandle(MemoryLayout.PathElement.groupElement("x"));
|
|
VarHandle vhY = bigLayout.varHandle(MemoryLayout.PathElement.groupElement("y"));
|
|
try (Arena arena = Arena.ofConfined()) {
|
|
MemorySegment result = (MemorySegment) handle.invokeExact((SegmentAllocator) arena);
|
|
long x = (long) vhX.get(result);
|
|
assertEquals(x, 10);
|
|
long y = (long) vhY.get(result);
|
|
assertEquals(y, 11);
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public void testCaptureErrno() throws Throwable {
|
|
Linker.Option ccs = Linker.Option.captureCallState("errno");
|
|
MethodHandle handle = downcallHandle("capture_errno", FunctionDescriptor.ofVoid(C_INT), Linker.Option.isTrivial(), ccs);
|
|
StructLayout capturedStateLayout = Linker.Option.captureStateLayout();
|
|
VarHandle errnoHandle = capturedStateLayout.varHandle(MemoryLayout.PathElement.groupElement("errno"));
|
|
try (Arena arena = Arena.ofConfined()) {
|
|
MemorySegment captureSeg = arena.allocate(capturedStateLayout);
|
|
handle.invokeExact(captureSeg, 42);
|
|
int capturedErrno = (int) errnoHandle.get(captureSeg);
|
|
assertEquals(capturedErrno, 42);
|
|
}
|
|
}
|
|
|
|
|
|
}
|