use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests1 method test_addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer_1.
@Test
public void test_addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer_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("addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment doubleSegmt = allocator.allocate(C_DOUBLE);
MemoryAccess.setDouble(doubleSegmt, 212.123D);
MemorySegment structSegmt = allocator.allocate(structLayout);
doubleHandle1.set(structSegmt, 218.456D);
doubleHandle2.set(structSegmt, 219.789D);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(doubleSegmt.address(), structSegmt);
MemorySegment resultSegmt = resultAddr.asSegment(C_DOUBLE.byteSize(), scope);
VarHandle doubleHandle = MemoryHandles.varHandle(double.class, ByteOrder.nativeOrder());
double result = (double) doubleHandle.get(resultSegmt, 0);
Assert.assertEquals(result, 650.368D, 0.001D);
Assert.assertEquals(resultSegmt.address().toRawLongValue(), doubleSegmt.address().toRawLongValue());
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests1 method test_add3ByteStructs_returnStruct_1.
@Test
public void test_add3ByteStructs_returnStruct_1() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"), C_CHAR.withName("elem3"), MemoryLayout.paddingLayout(C_CHAR.bitSize()));
VarHandle byteHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
VarHandle byteHandle2 = structLayout.varHandle(byte.class, PathElement.groupElement("elem2"));
VarHandle byteHandle3 = structLayout.varHandle(byte.class, PathElement.groupElement("elem3"));
MethodType mt = MethodType.methodType(MemorySegment.class, MemorySegment.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("add3ByteStructs_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);
byteHandle1.set(structSegmt1, (byte) 25);
byteHandle2.set(structSegmt1, (byte) 11);
byteHandle3.set(structSegmt1, (byte) 12);
MemorySegment structSegmt2 = allocator.allocate(structLayout);
byteHandle1.set(structSegmt2, (byte) 24);
byteHandle2.set(structSegmt2, (byte) 13);
byteHandle3.set(structSegmt2, (byte) 16);
MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
Assert.assertEquals((byte) byteHandle1.get(resultSegmt), (byte) 49);
Assert.assertEquals((byte) byteHandle2.get(resultSegmt), (byte) 24);
Assert.assertEquals((byte) byteHandle3.get(resultSegmt), (byte) 28);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_add2ShortStructs_returnStructPointer_2.
@Test
public void test_add2ShortStructs_returnStructPointer_2() 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(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("add2ShortStructs_returnStructPointer").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
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);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
Assert.assertEquals((short) shortHandle1.get(resultSegmt), (short) 134);
Assert.assertEquals((short) shortHandle2.get(resultSegmt), (short) 112);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_add3ShortStructs_returnStruct_2.
@Test
public void test_add3ShortStructs_returnStruct_2() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"), C_SHORT.withName("elem3"), MemoryLayout.paddingLayout(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);
Addressable functionSymbol = nativeLibLookup.lookup("add3ShortStructs_returnStruct").get();
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MethodHandle mh = clinker.downcallHandle(mt, fd);
MemorySegment structSegmt1 = allocator.allocate(structLayout);
shortHandle1.set(structSegmt1, (short) 25);
shortHandle2.set(structSegmt1, (short) 26);
shortHandle3.set(structSegmt1, (short) 27);
MemorySegment structSegmt2 = allocator.allocate(structLayout);
shortHandle1.set(structSegmt2, (short) 34);
shortHandle2.set(structSegmt2, (short) 35);
shortHandle3.set(structSegmt2, (short) 36);
MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(functionSymbol, allocator, 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);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_addByteAndBytesFromStruct_2.
@Test
public void test_addByteAndBytesFromStruct_2() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
VarHandle byteHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
VarHandle byteHandle2 = structLayout.varHandle(byte.class, PathElement.groupElement("elem2"));
MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromStruct").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
byteHandle1.set(structSegmt, (byte) 8);
byteHandle2.set(structSegmt, (byte) 9);
byte result = (byte) mh.invokeExact(functionSymbol, (byte) 6, structSegmt);
Assert.assertEquals(result, 23);
}
}
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