use of jdk.incubator.foreign.LibraryLookup.Symbol in project openj9 by eclipse.
the class PrimitiveTypeTests method test_addDoubleAndDoubleFromPointer.
@Test
public void test_addDoubleAndDoubleFromPointer() throws Throwable {
MethodType mt = MethodType.methodType(double.class, MemoryAddress.class, double.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_DOUBLE, C_POINTER, C_DOUBLE);
Symbol functionSymbol = nativeLib.lookup("addDoubleAndDoubleFromPointer").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
MemorySegment doubleSegmt = MemorySegment.allocateNative(C_DOUBLE);
MemoryAccess.setDouble(doubleSegmt, 159.748d);
double result = (double) mh.invokeExact(doubleSegmt.address(), 262.795d);
doubleSegmt.close();
Assert.assertEquals(result, 422.543d, 0.001d);
FunctionDescriptor fd2 = FunctionDescriptor.of(C_DOUBLE.withName("double"), C_POINTER.withName("pointer"), C_DOUBLE.withName("double"));
mh = clinker.downcallHandle(functionSymbol, mt, fd2);
doubleSegmt = MemorySegment.allocateNative(C_DOUBLE.withName("double"));
MemoryAccess.setDouble(doubleSegmt, 1159.748d);
result = (double) mh.invokeExact(doubleSegmt.address(), 1262.795d);
doubleSegmt.close();
Assert.assertEquals(result, 2422.543d, 0.001d);
}
use of jdk.incubator.foreign.LibraryLookup.Symbol in project openj9 by eclipse.
the class PrimitiveTypeTests method test_addTwoBytes.
@Test
public void test_addTwoBytes() throws Throwable {
MethodType mt = MethodType.methodType(byte.class, byte.class, byte.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, C_CHAR);
Symbol functionSymbol = nativeLib.lookup("add2Bytes").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
byte result = (byte) mh.invokeExact((byte) 6, (byte) 3);
Assert.assertEquals(result, (byte) 9);
FunctionDescriptor fd2 = FunctionDescriptor.of(C_CHAR.withName("char"), C_CHAR.withName("char"), C_CHAR.withName("char"));
mh = clinker.downcallHandle(functionSymbol, mt, fd2);
result = (byte) mh.invokeExact((byte) 8, (byte) 9);
Assert.assertEquals(result, (byte) 17);
}
use of jdk.incubator.foreign.LibraryLookup.Symbol in project openj9 by eclipse.
the class PrimitiveTypeTests method test_printfFromDefaultLibWithMemAddr.
@Test
public void test_printfFromDefaultLibWithMemAddr() throws Throwable {
Symbol functionSymbol = defaultLib.lookup("printf").get();
MethodType mt = MethodType.methodType(int.class, MemoryAddress.class, int.class, int.class, int.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_POINTER, C_INT, C_INT, C_INT);
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
MemorySegment formatMemSegment = CLinker.toCString("\n%d + %d = %d\n");
mh.invoke(formatMemSegment.address(), 15, 27, 42);
FunctionDescriptor fd2 = FunctionDescriptor.of(C_INT.withName("int"), C_POINTER.withName("pointer"), C_INT.withName("int"), C_INT.withName("int"), C_INT.withName("int"));
mh = clinker.downcallHandle(functionSymbol, mt, fd2);
mh.invoke(formatMemSegment.address(), 115, 127, 242);
}
use of jdk.incubator.foreign.LibraryLookup.Symbol in project openj9 by eclipse.
the class PrimitiveTypeTests method test_addLongAndLongFromPointer.
@Test
public void test_addLongAndLongFromPointer() throws Throwable {
MethodType mt = MethodType.methodType(long.class, MemoryAddress.class, long.class);
FunctionDescriptor fd = FunctionDescriptor.of(longLayout, C_POINTER, longLayout);
Symbol functionSymbol = nativeLib.lookup("addLongAndLongFromPointer").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
MemorySegment longSegmt = MemorySegment.allocateNative(longLayout);
MemoryAccess.setLong(longSegmt, 57424L);
long result = (long) mh.invokeExact(longSegmt.address(), 698235L);
longSegmt.close();
Assert.assertEquals(result, 755659L);
FunctionDescriptor fd2 = FunctionDescriptor.of(longLayout.withName("long"), C_POINTER.withName("int"), longLayout.withName("long"));
mh = clinker.downcallHandle(functionSymbol, mt, fd2);
longSegmt = MemorySegment.allocateNative(longLayout.withName("long"));
MemoryAccess.setLong(longSegmt, 11111L);
result = (long) mh.invokeExact(longSegmt.address(), 22222L);
longSegmt.close();
Assert.assertEquals(result, 33333L);
}
use of jdk.incubator.foreign.LibraryLookup.Symbol in project openj9 by eclipse.
the class StructTests method test_addByteFromPointerAndBytesFromStruct.
@Test
public void test_addByteFromPointerAndBytesFromStruct() throws Throwable {
GroupLayout structLayout = MemoryLayout.ofStruct(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, MemoryAddress.class, MemorySegment.class);
FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_POINTER, structLayout);
Symbol functionSymbol = nativeLib.lookup("addByteFromPointerAndBytesFromStruct").get();
MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
MemorySegment byteSegmt = MemorySegment.allocateNative(C_CHAR);
MemoryAccess.setByte(byteSegmt, (byte) 12);
MemorySegment structSegmt = MemorySegment.allocateNative(structLayout);
byteHandle1.set(structSegmt, (byte) 14);
byteHandle2.set(structSegmt, (byte) 16);
byte result = (byte) mh.invokeExact(byteSegmt.address(), structSegmt);
Assert.assertEquals(result, 42);
byteSegmt.close();
structSegmt.close();
}
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