use of jdk.incubator.foreign.SegmentAllocator in project openj9 by eclipse.
the class StructTests1 method test_addByteAndBytesFromNestedStruct_1.
@Test
public void test_addByteAndBytesFromNestedStruct_1() throws Throwable {
GroupLayout nestedStructLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
GroupLayout structLayout = MemoryLayout.structLayout(nestedStructLayout.withName("struct_elem1"), C_CHAR.withName("elem2"));
MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromNestedStruct").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
MemoryAccess.setByteAtOffset(structSegmt, 0, (byte) 11);
MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 22);
MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 33);
byte result = (byte) mh.invokeExact((byte) 46, structSegmt);
Assert.assertEquals(result, 112);
}
}
use of jdk.incubator.foreign.SegmentAllocator in project openj9 by eclipse.
the class StructTests1 method test_addByteAndBytesFromStructWithNestedByteArray_1.
@Test
public void test_addByteAndBytesFromStructWithNestedByteArray_1() throws Throwable {
SequenceLayout byteArray = MemoryLayout.sequenceLayout(2, C_CHAR);
GroupLayout structLayout = MemoryLayout.structLayout(byteArray.withName("array_elem1"), C_CHAR.withName("elem2"), MemoryLayout.paddingLayout(C_CHAR.bitSize()));
MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromStructWithNestedByteArray").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
MemoryAccess.setByteAtOffset(structSegmt, 0, (byte) 11);
MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 12);
MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 13);
byte result = (byte) mh.invokeExact((byte) 14, structSegmt);
Assert.assertEquals(result, 50);
}
}
use of jdk.incubator.foreign.SegmentAllocator in project openj9 by eclipse.
the class StructTests1 method test_add2DoubleStructs_returnStructPointer_1.
@Test
public void test_add2DoubleStructs_returnStructPointer_1() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), C_DOUBLE.withName("elem2"));
VarHandle doubleHandle1 = structLayout.varHandle(double.class, PathElement.groupElement("elem1"));
VarHandle doubleHandle2 = structLayout.varHandle(double.class, PathElement.groupElement("elem2"));
MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("add2DoubleStructs_returnStructPointer").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt1 = allocator.allocate(structLayout);
doubleHandle1.set(structSegmt1, 11.222D);
doubleHandle2.set(structSegmt1, 22.333D);
MemorySegment structSegmt2 = allocator.allocate(structLayout);
doubleHandle1.set(structSegmt2, 33.444D);
doubleHandle2.set(structSegmt2, 44.555D);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
Assert.assertEquals((double) doubleHandle1.get(resultSegmt), 44.666D, 0.001D);
Assert.assertEquals((double) doubleHandle2.get(resultSegmt), 66.888D, 0.001D);
}
}
use of jdk.incubator.foreign.SegmentAllocator in project openj9 by eclipse.
the class StructTests1 method test_add2ShortStructs_returnStruct_1.
@Test
public void test_add2ShortStructs_returnStruct_1() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(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(MemorySegment.class, MemorySegment.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("add2ShortStructs_returnStruct").get();
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MethodHandle mh = clinker.downcallHandle(functionSymbol, allocator, mt, fd);
MemorySegment structSegmt1 = allocator.allocate(structLayout);
shortHandle1.set(structSegmt1, (short) 56);
shortHandle2.set(structSegmt1, (short) 45);
MemorySegment structSegmt2 = allocator.allocate(structLayout);
shortHandle1.set(structSegmt2, (short) 78);
shortHandle2.set(structSegmt2, (short) 67);
MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
Assert.assertEquals((short) shortHandle1.get(resultSegmt), (short) 134);
Assert.assertEquals((short) shortHandle2.get(resultSegmt), (short) 112);
}
}
use of jdk.incubator.foreign.SegmentAllocator in project openj9 by eclipse.
the class StructTests1 method test_addIntFromPointerAndIntsFromStruct_returnIntPointer_1.
@Test
public void test_addIntFromPointerAndIntsFromStruct_returnIntPointer_1() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(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);
Addressable functionSymbol = nativeLibLookup.lookup("addIntFromPointerAndIntsFromStruct_returnIntPointer").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment intSegmt = allocator.allocate(C_INT);
MemoryAccess.setInt(intSegmt, 1122333);
MemorySegment structSegmt = allocator.allocate(structLayout);
intHandle1.set(structSegmt, 4455666);
intHandle2.set(structSegmt, 7788999);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(intSegmt.address(), structSegmt);
MemorySegment resultSegmt = resultAddr.asSegment(C_INT.byteSize(), scope);
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());
}
}
Aggregations