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

Example 46 with SequenceLayout

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

the class StructTests2 method test_addCharAndCharsFromStructWithNestedStructArray_2.

@Test
public void test_addCharAndCharsFromStructWithNestedStructArray_2() throws Throwable {
    GroupLayout charStruct = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, charStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), C_SHORT.withName("elem2"));
    MethodType mt = MethodType.methodType(char.class, char.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addCharAndCharsFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setCharAtOffset(structSegmt, 0, 'E');
        MemoryAccess.setCharAtOffset(structSegmt, 2, 'F');
        MemoryAccess.setCharAtOffset(structSegmt, 4, 'G');
        MemoryAccess.setCharAtOffset(structSegmt, 6, 'H');
        MemoryAccess.setCharAtOffset(structSegmt, 8, 'I');
        char result = (char) mh.invokeExact(functionSymbol, 'J', structSegmt);
        Assert.assertEquals(result, 'h');
    }
}

Example 47 with SequenceLayout

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

the class StructTests2 method test_addByteAndBytesFromStructWithNestedByteArray_reverseOrder_2.

@Test
public void test_addByteAndBytesFromStructWithNestedByteArray_reverseOrder_2() throws Throwable {
    SequenceLayout byteArray = MemoryLayout.sequenceLayout(2, C_CHAR);
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), byteArray.withName("array_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_reverseOrder").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setByteAtOffset(structSegmt, 0, (byte) 12);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 14);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 16);
        byte result = (byte) mh.invokeExact(functionSymbol, (byte) 18, structSegmt);
        Assert.assertEquals(result, 60);
    }
}

Example 48 with SequenceLayout

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

the class StructTests2 method test_addDoubleAndDoublesFromStructWithNestedStructArray_reverseOrder_2.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedStructArray_reverseOrder_2() throws Throwable {
    GroupLayout doubleStruct = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), C_DOUBLE.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, doubleStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), structArray.withName("struct_array_elem2"));
    MethodType mt = MethodType.methodType(double.class, double.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_DOUBLE, C_DOUBLE, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addDoubleAndDoublesFromStructWithNestedStructArray_reverseOrder").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setDoubleAtOffset(structSegmt, 0, 111.111D);
        MemoryAccess.setDoubleAtOffset(structSegmt, 8, 222.222D);
        MemoryAccess.setDoubleAtOffset(structSegmt, 16, 333.333D);
        MemoryAccess.setDoubleAtOffset(structSegmt, 24, 444.444D);
        MemoryAccess.setDoubleAtOffset(structSegmt, 32, 555.555D);
        double result = (double) mh.invokeExact(functionSymbol, 666.666D, structSegmt);
        Assert.assertEquals(result, 2333.331D, 0.001D);
    }
}

Example 49 with SequenceLayout

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

the class StructTests1 method test_addFloatAndFloatsFromStructWithNestedFloatArray_withoutLayoutName_1.

@Test
public void test_addFloatAndFloatsFromStructWithNestedFloatArray_withoutLayoutName_1() throws Throwable {
    SequenceLayout floatArray = MemoryLayout.sequenceLayout(2, C_FLOAT);
    GroupLayout structLayout = MemoryLayout.structLayout(floatArray, C_FLOAT);
    MethodType mt = MethodType.methodType(float.class, float.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_FLOAT, C_FLOAT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedFloatArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setFloatAtOffset(structSegmt, 0, 111.11F);
        MemoryAccess.setFloatAtOffset(structSegmt, 4, 222.22F);
        MemoryAccess.setFloatAtOffset(structSegmt, 8, 333.33F);
        float result = (float) mh.invokeExact(444.44F, structSegmt);
        Assert.assertEquals(result, 1111.1F, 0.01F);
    }
}

Example 50 with SequenceLayout

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

the class StructTests1 method test_addByteAndBytesFromStructWithNestedStructArray_reverseOrder_1.

@Test
public void test_addByteAndBytesFromStructWithNestedStructArray_reverseOrder_1() throws Throwable {
    GroupLayout byteStruct = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, byteStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), structArray.withName("struct_array_elem2"), MemoryLayout.paddingLayout(C_CHAR.bitSize() * 3));
    MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromStructWithNestedStructArray_reverseOrder").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) 12);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 14);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 16);
        MemoryAccess.setByteAtOffset(structSegmt, 3, (byte) 18);
        MemoryAccess.setByteAtOffset(structSegmt, 4, (byte) 20);
        byte result = (byte) mh.invokeExact((byte) 22, structSegmt);
        Assert.assertEquals(result, 102);
    }
}