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

Example 81 with GroupLayout

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

the class StructTests1 method test_addBoolAndBoolsFromStructWithNestedStructArray_withoutLayoutName_1.

@Test
public void test_addBoolAndBoolsFromStructWithNestedStructArray_withoutLayoutName_1() throws Throwable {
    GroupLayout boolStruct = MemoryLayout.structLayout(C_CHAR, C_CHAR);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, boolStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, C_CHAR);
    MethodType mt = MethodType.methodType(boolean.class, boolean.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addBoolAndBoolsFromStructWithNestedStructArray").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) 1);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 0);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 1);
        MemoryAccess.setByteAtOffset(structSegmt, 3, (byte) 0);
        MemoryAccess.setByteAtOffset(structSegmt, 4, (byte) 1);
        boolean result = (boolean) mh.invokeExact(false, structSegmt);
        Assert.assertEquals(result, true);
    }
}

Example 82 with GroupLayout

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

the class StructTests1 method test_addFloatAndFloatsFromStructPointer_1.

@Test
public void test_addFloatAndFloatsFromStructPointer_1() 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(float.class, float.class, MemoryAddress.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_FLOAT, C_FLOAT, C_POINTER);
    Addressable functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt, 35.11F);
        floatHandle2.set(structSegmt, 46.22F);
        float result = (float) mh.invokeExact(79.33F, structSegmt.address());
        Assert.assertEquals(result, 160.66F, 0.01F);
    }
}

Example 83 with GroupLayout

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

the class StructTests1 method test_addBoolAndBoolsFromStructWithNestedBoolArray_reverseOrder_1.

@Test
public void test_addBoolAndBoolsFromStructWithNestedBoolArray_reverseOrder_1() throws Throwable {
    SequenceLayout boolArray = MemoryLayout.sequenceLayout(2, C_CHAR);
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), boolArray.withName("array_elem2"), MemoryLayout.paddingLayout(C_CHAR.bitSize()));
    MethodType mt = MethodType.methodType(boolean.class, boolean.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addBoolAndBoolsFromStructWithNestedBoolArray_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) 0);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 1);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 0);
        boolean result = (boolean) mh.invokeExact(false, structSegmt);
        Assert.assertEquals(result, true);
    }
}

Example 84 with GroupLayout

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

the class StructTests1 method test_add2ByteStructs_returnStruct_1.

@Test
public void test_add2ByteStructs_returnStruct_1() 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(MemorySegment.class, MemorySegment.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2ByteStructs_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);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        byteHandle1.set(structSegmt2, (byte) 24);
        byteHandle2.set(structSegmt2, (byte) 13);
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals((byte) byteHandle1.get(resultSegmt), (byte) 49);
        Assert.assertEquals((byte) byteHandle2.get(resultSegmt), (byte) 24);
    }
}

Example 85 with GroupLayout

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

the class StructTests1 method test_addShortAndShortsFromStructWithNestedShortArray_reverseOrder_1.

@Test
public void test_addShortAndShortsFromStructWithNestedShortArray_reverseOrder_1() throws Throwable {
    SequenceLayout shortArray = MemoryLayout.sequenceLayout(2, C_SHORT);
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), shortArray.withName("array_elem2"), MemoryLayout.paddingLayout(C_SHORT.bitSize()));
    MethodType mt = MethodType.methodType(short.class, short.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addShortAndShortsFromStructWithNestedShortArray_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.setShortAtOffset(structSegmt, 0, (short) 111);
        MemoryAccess.setShortAtOffset(structSegmt, 2, (short) 222);
        MemoryAccess.setShortAtOffset(structSegmt, 4, (short) 333);
        short result = (short) mh.invokeExact((short) 444, structSegmt);
        Assert.assertEquals(result, 1110);
    }
}