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/*
* 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 id=specialized
* @enablePreview
* @library ../
* @requires jdk.foreign.linker != "UNSUPPORTED"
* @modules java.base/jdk.internal.foreign
* @run testng/othervm
* --enable-native-access=ALL-UNNAMED
* -Djdk.internal.foreign.DowncallLinker.USE_SPEC=true
* -Djdk.internal.foreign.UpcallLinker.USE_SPEC=true
* TestArrayStructs
*/
/*
* @test id=interpreted
* @enablePreview
* @library ../
* @requires jdk.foreign.linker != "UNSUPPORTED"
* @modules java.base/jdk.internal.foreign
* @run testng/othervm
* --enable-native-access=ALL-UNNAMED
* -Djdk.internal.foreign.DowncallLinker.USE_SPEC=false
* -Djdk.internal.foreign.UpcallLinker.USE_SPEC=false
* TestArrayStructs
*/
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.lang.foreign.Arena;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.MemoryLayout;
import java.lang.foreign.MemorySegment;
import java.lang.foreign.StructLayout;
import java.lang.invoke.MethodHandle;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;
import java.util.stream.Stream;
import static java.lang.foreign.MemoryLayout.sequenceLayout;
import static java.lang.foreign.MemoryLayout.structLayout;
public class TestArrayStructs extends NativeTestHelper {
static {
System.loadLibrary("ArrayStructs");
}
// Test if structs of various different sizes, including non-powers of two, work correctly
@Test(dataProvider = "arrayStructs")
public void testArrayStruct(String functionName, FunctionDescriptor baseDesc, int numPrefixArgs, int numElements) throws Throwable {
FunctionDescriptor downcallDesc = baseDesc.insertArgumentLayouts(0, C_POINTER); // CB
MemoryLayout[] elementLayouts = Collections.nCopies(numElements, C_CHAR).toArray(MemoryLayout[]::new);
FunctionDescriptor upcallDesc = baseDesc.appendArgumentLayouts(elementLayouts);
try (Arena arena = Arena.ofConfined()) {
TestValue[] testArgs = genTestArgs(baseDesc, arena);
MethodHandle downcallHandle = downcallHandle(functionName, downcallDesc);
Object[] args = new Object[downcallDesc.argumentLayouts().size() + 1]; // +1 for return allocator
AtomicReference<Object[]> returnBox = new AtomicReference<>();
int returnIdx = numPrefixArgs;
int argIdx = 0;
args[argIdx++] = arena;
args[argIdx++] = makeArgSaverCB(upcallDesc, arena, returnBox, returnIdx);
for (TestValue testArg : testArgs) {
args[argIdx++] = testArg.value();
}
MemorySegment returned = (MemorySegment) downcallHandle.invokeWithArguments(args);
Consumer<Object> structCheck = testArgs[returnIdx].check();
structCheck.accept(returned);
Object[] capturedArgs = returnBox.get();
int capturedArgIdx;
for (capturedArgIdx = numPrefixArgs; capturedArgIdx < testArgs.length; capturedArgIdx++) {
testArgs[capturedArgIdx].check().accept(capturedArgs[capturedArgIdx]);
}
byte[] elements = new byte[numElements];
for (int elIdx = 0; elIdx < numElements; elIdx++, capturedArgIdx++) {
elements[elIdx] = (byte) capturedArgs[capturedArgIdx];
}
structCheck.accept(MemorySegment.ofArray(elements)); // reuse the check for the struct
}
}
@DataProvider
public static Object[][] arrayStructs() {
List<Object[]> cases = new ArrayList<>();
for (int i = 0; i < layouts.size(); i++) {
StructLayout layout = layouts.get(i);
int numElements = i + 1;
cases.add(new Object[]{"F" + numElements, FunctionDescriptor.of(layout, layout), 0, numElements});
}
for (int i = 0; i < layouts.size(); i++) {
StructLayout layout = layouts.get(i);
MemoryLayout[] argLayouts = Stream.concat(PREFIX_LAYOUTS.stream(), Stream.of(layout)).toArray(MemoryLayout[]::new);
int numElements = i + 1;
cases.add(new Object[]{"F" + numElements + "_stack", FunctionDescriptor.of(layout, argLayouts), PREFIX_LAYOUTS.size(), numElements});
}
return cases.toArray(Object[][]::new);
}
static final List<MemoryLayout> PREFIX_LAYOUTS = List.of(
C_LONG_LONG, C_LONG_LONG, C_LONG_LONG, C_LONG_LONG, C_LONG_LONG, C_LONG_LONG, C_LONG_LONG, C_LONG_LONG,
C_DOUBLE, C_DOUBLE, C_DOUBLE, C_DOUBLE, C_DOUBLE, C_DOUBLE, C_DOUBLE, C_DOUBLE);
static final List<StructLayout> layouts = List.of(
structLayout(sequenceLayout(1, C_CHAR).withName("f0")).withName("S1"),
structLayout(sequenceLayout(2, C_CHAR).withName("f0")).withName("S2"),
structLayout(sequenceLayout(3, C_CHAR).withName("f0")).withName("S3"),
structLayout(sequenceLayout(4, C_CHAR).withName("f0")).withName("S4"),
structLayout(sequenceLayout(5, C_CHAR).withName("f0")).withName("S5"),
structLayout(sequenceLayout(6, C_CHAR).withName("f0")).withName("S6"),
structLayout(sequenceLayout(7, C_CHAR).withName("f0")).withName("S7"),
structLayout(sequenceLayout(8, C_CHAR).withName("f0")).withName("S8"),
structLayout(sequenceLayout(9, C_CHAR).withName("f0")).withName("S9"),
structLayout(sequenceLayout(10, C_CHAR).withName("f0")).withName("S10"),
structLayout(sequenceLayout(11, C_CHAR).withName("f0")).withName("S11"),
structLayout(sequenceLayout(12, C_CHAR).withName("f0")).withName("S12"),
structLayout(sequenceLayout(13, C_CHAR).withName("f0")).withName("S13"),
structLayout(sequenceLayout(14, C_CHAR).withName("f0")).withName("S14"),
structLayout(sequenceLayout(15, C_CHAR).withName("f0")).withName("S15"),
structLayout(sequenceLayout(16, C_CHAR).withName("f0")).withName("S16"));
}
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