use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_addByteFromPointerAndBytesFromStruct_returnBytePointer_2.
@Test
public void test_addByteFromPointerAndBytesFromStruct_returnBytePointer_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(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addByteFromPointerAndBytesFromStruct_returnBytePointer").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment byteSegmt = allocator.allocate(C_CHAR);
MemoryAccess.setByte(byteSegmt, (byte) 12);
MemorySegment structSegmt = allocator.allocate(structLayout);
byteHandle1.set(structSegmt, (byte) 18);
byteHandle2.set(structSegmt, (byte) 19);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, byteSegmt.address(), structSegmt);
MemorySegment resultSegmt = resultAddr.asSegment(C_CHAR.byteSize(), scope);
VarHandle byteHandle = MemoryHandles.varHandle(byte.class, ByteOrder.nativeOrder());
byte result = (byte) byteHandle.get(resultSegmt, 0);
Assert.assertEquals(result, 49);
Assert.assertEquals(resultSegmt.address().toRawLongValue(), byteSegmt.address().toRawLongValue());
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_add2FloatStructs_returnStructPointer_2.
@Test
public void test_add2FloatStructs_returnStructPointer_2() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(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);
Addressable functionSymbol = nativeLibLookup.lookup("add2FloatStructs_returnStructPointer").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt1 = allocator.allocate(structLayout);
floatHandle1.set(structSegmt1, 25.12F);
floatHandle2.set(structSegmt1, 11.23F);
MemorySegment structSegmt2 = allocator.allocate(structLayout);
floatHandle1.set(structSegmt2, 24.34F);
floatHandle2.set(structSegmt2, 13.45F);
MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
Assert.assertEquals((float) floatHandle1.get(resultSegmt), 49.46F, 0.01F);
Assert.assertEquals((float) floatHandle2.get(resultSegmt), 24.68F, 0.01F);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_addIntAndIntShortFromStruct_2.
@Test
public void test_addIntAndIntShortFromStruct_2() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), C_SHORT.withName("elem2"), MemoryLayout.paddingLayout(C_SHORT.bitSize()));
VarHandle elemHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
VarHandle elemHandle2 = structLayout.varHandle(short.class, PathElement.groupElement("elem2"));
MethodType mt = MethodType.methodType(int.class, int.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_INT, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addIntAndIntShortFromStruct").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
elemHandle1.set(structSegmt, 11223344);
elemHandle2.set(structSegmt, (short) 32766);
int result = (int) mh.invokeExact(functionSymbol, 22334455, structSegmt);
Assert.assertEquals(result, 33590565);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_addBoolAndBoolsFromStructWithXor_2.
@Test
public void test_addBoolAndBoolsFromStructWithXor_2() throws Throwable {
GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
VarHandle boolHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
VarHandle boolHandle2 = structLayout.varHandle(byte.class, PathElement.groupElement("elem2"));
MethodType mt = MethodType.methodType(boolean.class, boolean.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
Addressable functionSymbol = nativeLibLookup.lookup("addBoolAndBoolsFromStructWithXor").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
boolHandle1.set(structSegmt, (byte) 0);
boolHandle2.set(structSegmt, (byte) 1);
boolean result = (boolean) mh.invokeExact(functionSymbol, false, structSegmt);
Assert.assertEquals(result, true);
}
}
use of java.lang.invoke.VarHandle in project openj9 by eclipse.
the class StructTests2 method test_addDoubleAndDoublesFromStructPointer_2.
@Test
public void test_addDoubleAndDoublesFromStructPointer_2() 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(double.class, double.class, MemoryAddress.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_DOUBLE, C_DOUBLE, C_POINTER);
Addressable functionSymbol = nativeLibLookup.lookup("addDoubleAndDoublesFromStructPointer").get();
MethodHandle mh = clinker.downcallHandle(mt, fd);
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
MemorySegment structSegmt = allocator.allocate(structLayout);
doubleHandle1.set(structSegmt, 22.111D);
doubleHandle2.set(structSegmt, 44.222D);
double result = (double) mh.invokeExact(functionSymbol, 66.333D, structSegmt.address());
Assert.assertEquals(result, 132.666D, 0.001D);
}
}
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