Examples with GroupLayout jdk.incubator.foreign.GroupLayout used on opensource projects

Example 36 with GroupLayout

use of jdk.incubator.foreign.GroupLayout in project openj9 by eclipse.

the class StructTests method test_addBoolAndBoolsFromStructWithNestedBoolArray.

@Test
public void test_addBoolAndBoolsFromStructWithNestedBoolArray() throws Throwable {
    SequenceLayout intArray = MemoryLayout.ofSequence(2, C_INT);
    GroupLayout structLayout = MemoryLayout.ofStruct(intArray.withName("array_elem1"), C_INT.withName("elem2"));
    MethodType mt = MethodType.methodType(int.class, int.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_INT, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addBoolAndBoolsFromStructWithNestedBoolArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    MemoryAccess.setIntAtOffset(structSegmt, 0, 0);
    MemoryAccess.setIntAtOffset(structSegmt, 4, 1);
    MemoryAccess.setIntAtOffset(structSegmt, 8, 0);
    int result = (int) mh.invokeExact(0, structSegmt);
    Assert.assertEquals(result, 1);
    structSegmt.close();
}

Example 37 with GroupLayout

use of jdk.incubator.foreign.GroupLayout in project openj9 by eclipse.

the class StructTests method test_addCharFromPointerAndCharsFromStruct_returnCharPointer.

@Test
public void test_addCharFromPointerAndCharsFromStruct_returnCharPointer() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    VarHandle charHandle1 = structLayout.varHandle(char.class, PathElement.groupElement("elem1"));
    VarHandle charHandle2 = structLayout.varHandle(char.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addCharFromPointerAndCharsFromStruct_returnCharPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment charSegmt = MemorySegment.allocateNative(C_SHORT);
    MemoryAccess.setChar(charSegmt, 'D');
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    charHandle1.set(structSegmt, 'E');
    charHandle2.set(structSegmt, 'F');
    MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(charSegmt.address(), structSegmt);
    MemorySegment resultSegmt = resultAddr.asSegmentRestricted(C_SHORT.byteSize());
    VarHandle charHandle = MemoryHandles.varHandle(char.class, ByteOrder.nativeOrder());
    char result = (char) charHandle.get(resultSegmt, 0);
    Assert.assertEquals(result, 'M');
    Assert.assertEquals(resultSegmt.address().toRawLongValue(), charSegmt.address().toRawLongValue());
    charSegmt.close();
    structSegmt.close();
    resultSegmt.close();
}

Example 38 with GroupLayout

use of jdk.incubator.foreign.GroupLayout in project openj9 by eclipse.

the class StructTests method test_addShortFromPointerAndShortsFromStruct_returnShortPointer.

@Test
public void test_addShortFromPointerAndShortsFromStruct_returnShortPointer() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    VarHandle shortHandle1 = structLayout.varHandle(short.class, PathElement.groupElement("elem1"));
    VarHandle shortHandle2 = structLayout.varHandle(short.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addShortFromPointerAndShortsFromStruct_returnShortPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment shortSegmt = MemorySegment.allocateNative(C_SHORT);
    MemoryAccess.setShort(shortSegmt, (short) 12);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    shortHandle1.set(structSegmt, (short) 18);
    shortHandle2.set(structSegmt, (short) 19);
    MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(shortSegmt.address(), structSegmt);
    MemorySegment resultSegmt = resultAddr.asSegmentRestricted(C_SHORT.byteSize());
    VarHandle shortHandle = MemoryHandles.varHandle(short.class, ByteOrder.nativeOrder());
    short result = (short) shortHandle.get(resultSegmt, 0);
    Assert.assertEquals(result, 49);
    Assert.assertEquals(resultSegmt.address().toRawLongValue(), shortSegmt.address().toRawLongValue());
    shortSegmt.close();
    structSegmt.close();
    resultSegmt.close();
}

Example 39 with GroupLayout

use of jdk.incubator.foreign.GroupLayout in project openj9 by eclipse.

the class StructTests method test_addIntFromPointerAndIntsFromStruct_returnIntPointer.

@Test
public void test_addIntFromPointerAndIntsFromStruct_returnIntPointer() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(C_INT.withName("elem1"), C_INT.withName("elem2"));
    VarHandle intHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
    VarHandle intHandle2 = structLayout.varHandle(int.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addIntFromPointerAndIntsFromStruct_returnIntPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment intSegmt = MemorySegment.allocateNative(C_INT);
    MemoryAccess.setInt(intSegmt, 1122333);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    intHandle1.set(structSegmt, 4455666);
    intHandle2.set(structSegmt, 7788999);
    MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(intSegmt.address(), structSegmt);
    MemorySegment resultSegmt = resultAddr.asSegmentRestricted(C_INT.byteSize());
    VarHandle intHandle = MemoryHandles.varHandle(int.class, ByteOrder.nativeOrder());
    int result = (int) intHandle.get(resultSegmt, 0);
    Assert.assertEquals(result, 13366998);
    Assert.assertEquals(resultSegmt.address().toRawLongValue(), intSegmt.address().toRawLongValue());
    intSegmt.close();
    structSegmt.close();
    resultSegmt.close();
}

Example 40 with GroupLayout

use of jdk.incubator.foreign.GroupLayout in project openj9 by eclipse.

the class StructTests method test_addLongAndLongsFromStruct.

@Test
public void test_addLongAndLongsFromStruct() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(longLayout.withName("elem1"), longLayout.withName("elem2"));
    VarHandle longHandle1 = structLayout.varHandle(long.class, PathElement.groupElement("elem1"));
    VarHandle longHandle2 = structLayout.varHandle(long.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(long.class, long.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addLongAndLongsFromStruct").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    longHandle1.set(structSegmt, 1234567890L);
    longHandle2.set(structSegmt, 9876543210L);
    long result = (long) mh.invokeExact(2468024680L, structSegmt);
    Assert.assertEquals(result, 13579135780L);
    structSegmt.close();
}