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

Example 66 with GroupLayout

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

the class StructTests method test_add2CharStructs_returnStruct.

@Test
public void test_add2CharStructs_returnStruct() 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(MemorySegment.class, MemorySegment.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
    Symbol functionSymbol = nativeLib.lookup("add2CharStructs_returnStruct").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt1 = MemorySegment.allocateNative(structLayout);
    charHandle1.set(structSegmt1, 'A');
    charHandle2.set(structSegmt1, 'B');
    MemorySegment structSegmt2 = MemorySegment.allocateNative(structLayout);
    charHandle1.set(structSegmt2, 'C');
    charHandle2.set(structSegmt2, 'D');
    MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
    Assert.assertEquals(charHandle1.get(resultSegmt), 'C');
    Assert.assertEquals(charHandle2.get(resultSegmt), 'E');
    structSegmt1.close();
    structSegmt2.close();
    resultSegmt.close();
}

Example 67 with GroupLayout

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

the class StructTests method test_addShortAndShortsFromStructWithNestedShortArray_reverseOrder.

@Test
public void test_addShortAndShortsFromStructWithNestedShortArray_reverseOrder() throws Throwable {
    SequenceLayout shortArray = MemoryLayout.ofSequence(2, C_SHORT);
    GroupLayout structLayout = MemoryLayout.ofStruct(C_SHORT.withName("elem1"), shortArray.withName("array_elem2"), MemoryLayout.ofPaddingBits(C_SHORT.bitSize()));
    MethodType mt = MethodType.methodType(short.class, short.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addShortAndShortsFromStructWithNestedShortArray_reverseOrder").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    MemoryAccess.setShortAtOffset(structSegmt, 0, (short) 111);
    MemoryAccess.setShortAtOffset(structSegmt, 2, (short) 222);
    MemoryAccess.setShortAtOffset(structSegmt, 4, (short) 333);
    short result = (short) mh.invokeExact((short) 444, structSegmt);
    Assert.assertEquals(result, 1110);
    structSegmt.close();
}

Example 68 with GroupLayout

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

the class StructTests method test_addLongAndLongsFromStructWithNestedLongArray_withoutLayoutName.

@Test
public void test_addLongAndLongsFromStructWithNestedLongArray_withoutLayoutName() throws Throwable {
    SequenceLayout longArray = MemoryLayout.ofSequence(2, longLayout);
    GroupLayout structLayout = MemoryLayout.ofStruct(longArray, longLayout);
    MethodType mt = MethodType.methodType(long.class, long.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, structLayout);
    Symbol functionSymbol = nativeLib.lookup("addLongAndLongsFromStructWithNestedLongArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
    MemoryAccess.setLongAtOffset(structSegmt, 0, 111111111L);
    MemoryAccess.setLongAtOffset(structSegmt, 8, 222222222L);
    MemoryAccess.setLongAtOffset(structSegmt, 16, 333333333L);
    long result = (long) mh.invokeExact(444444444L, structSegmt);
    Assert.assertEquals(result, 1111111110L);
    structSegmt.close();
}

Example 69 with GroupLayout

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

the class StructTests method test_add3ShortStructs_returnStruct.

@Test
public void test_add3ShortStructs_returnStruct() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"), C_SHORT.withName("elem3"), MemoryLayout.ofPaddingBits(C_SHORT.bitSize()));
    VarHandle shortHandle1 = structLayout.varHandle(short.class, PathElement.groupElement("elem1"));
    VarHandle shortHandle2 = structLayout.varHandle(short.class, PathElement.groupElement("elem2"));
    VarHandle shortHandle3 = structLayout.varHandle(short.class, PathElement.groupElement("elem3"));
    MethodType mt = MethodType.methodType(MemorySegment.class, MemorySegment.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
    Symbol functionSymbol = nativeLib.lookup("add3ShortStructs_returnStruct").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt1 = MemorySegment.allocateNative(structLayout);
    shortHandle1.set(structSegmt1, (short) 25);
    shortHandle2.set(structSegmt1, (short) 26);
    shortHandle3.set(structSegmt1, (short) 27);
    MemorySegment structSegmt2 = MemorySegment.allocateNative(structLayout);
    shortHandle1.set(structSegmt2, (short) 34);
    shortHandle2.set(structSegmt2, (short) 35);
    shortHandle3.set(structSegmt2, (short) 36);
    MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
    Assert.assertEquals((short) shortHandle1.get(resultSegmt), (short) 59);
    Assert.assertEquals((short) shortHandle2.get(resultSegmt), (short) 61);
    Assert.assertEquals((short) shortHandle3.get(resultSegmt), (short) 63);
    structSegmt1.close();
    structSegmt2.close();
    resultSegmt.close();
}

Example 70 with GroupLayout

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

the class StructTests method test_add2FloatStructs_returnStructPointer.

@Test
public void test_add2FloatStructs_returnStructPointer() throws Throwable {
    GroupLayout structLayout = MemoryLayout.ofStruct(C_FLOAT.withName("elem1"), C_FLOAT.withName("elem2"));
    VarHandle floatHandle1 = structLayout.varHandle(float.class, PathElement.groupElement("elem1"));
    VarHandle floatHandle2 = structLayout.varHandle(float.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("add2FloatStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment structSegmt1 = MemorySegment.allocateNative(structLayout);
    floatHandle1.set(structSegmt1, 25.12F);
    floatHandle2.set(structSegmt1, 11.23F);
    MemorySegment structSegmt2 = MemorySegment.allocateNative(structLayout);
    floatHandle1.set(structSegmt2, 24.34F);
    floatHandle2.set(structSegmt2, 13.45F);
    MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
    MemorySegment resultSegmt = resultAddr.asSegmentRestricted(structLayout.byteSize());
    Assert.assertEquals((float) floatHandle1.get(resultSegmt), 49.46F, 0.01F);
    Assert.assertEquals((float) floatHandle2.get(resultSegmt), 24.68F, 0.01F);
    structSegmt1.close();
    structSegmt2.close();
    resultSegmt.close();
}