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

Example 16 with NativeSymbol

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

the class StructTests1 method test_addDoubleAndDoubleFloatFromStruct_1.

@Test
public void test_addDoubleAndDoubleFloatFromStruct_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(JAVA_DOUBLE.withName("elem1"), JAVA_FLOAT.withName("elem2"));
    VarHandle elemHandle1 = structLayout.varHandle(PathElement.groupElement("elem1"));
    VarHandle elemHandle2 = structLayout.varHandle(PathElement.groupElement("elem2"));
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_DOUBLE, JAVA_DOUBLE, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addDoubleAndDoubleFloatFromStruct").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        elemHandle1.set(structSegmt, 218.555D);
        elemHandle2.set(structSegmt, 19.22F);
        double result = (double) mh.invokeExact(216.666D, structSegmt);
        Assert.assertEquals(result, 454.441D, 0.001D);
    }
}

Example 17 with NativeSymbol

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

the class StructTests1 method test_addDoubleAndDoublesFromStructWithNestedStructArray_withoutLayoutName_1.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedStructArray_withoutLayoutName_1() throws Throwable {
    GroupLayout doubleStruct = MemoryLayout.structLayout(JAVA_DOUBLE, JAVA_DOUBLE);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, doubleStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, JAVA_DOUBLE);
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_DOUBLE, JAVA_DOUBLE, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addDoubleAndDoublesFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        structSegmt.set(JAVA_DOUBLE, 0, 111.111D);
        structSegmt.set(JAVA_DOUBLE, 8, 222.222D);
        structSegmt.set(JAVA_DOUBLE, 16, 333.333D);
        structSegmt.set(JAVA_DOUBLE, 24, 444.444D);
        structSegmt.set(JAVA_DOUBLE, 32, 555.555D);
        double result = (double) mh.invokeExact(666.666D, structSegmt);
        Assert.assertEquals(result, 2333.331D, 0.001D);
    }
}

Example 18 with NativeSymbol

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

the class StructTests1 method test_addByteAndBytesFromNestedStruct_reverseOrder_1.

@Test
public void test_addByteAndBytesFromNestedStruct_reverseOrder_1() throws Throwable {
    GroupLayout nestedStructLayout = MemoryLayout.structLayout(JAVA_BYTE.withName("elem1"), JAVA_BYTE.withName("elem2"));
    GroupLayout structLayout = MemoryLayout.structLayout(JAVA_BYTE.withName("elem1"), nestedStructLayout.withName("struct_elem2"), MemoryLayout.paddingLayout(JAVA_BYTE.bitSize()));
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_BYTE, JAVA_BYTE, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromNestedStruct_reverseOrder").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        structSegmt.set(JAVA_BYTE, 0, (byte) 12);
        structSegmt.set(JAVA_BYTE, 1, (byte) 24);
        structSegmt.set(JAVA_BYTE, 2, (byte) 36);
        byte result = (byte) mh.invokeExact((byte) 48, structSegmt);
        Assert.assertEquals(result, 120);
    }
}

Example 19 with NativeSymbol

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

the class StructTests1 method test_addFloatAndFloatsFromStructWithNestedStructArray_1.

@Test
public void test_addFloatAndFloatsFromStructWithNestedStructArray_1() throws Throwable {
    GroupLayout floatStruct = MemoryLayout.structLayout(JAVA_FLOAT.withName("elem1"), JAVA_FLOAT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, floatStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), JAVA_FLOAT.withName("elem2"));
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_FLOAT, JAVA_FLOAT, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        structSegmt.set(JAVA_FLOAT, 0, 111.11F);
        structSegmt.set(JAVA_FLOAT, 4, 222.22F);
        structSegmt.set(JAVA_FLOAT, 8, 333.33F);
        structSegmt.set(JAVA_FLOAT, 12, 444.44F);
        structSegmt.set(JAVA_FLOAT, 16, 555.55F);
        float result = (float) mh.invokeExact(666.66F, structSegmt);
        Assert.assertEquals(result, 2333.31F, 0.01F);
    }
}

Example 20 with NativeSymbol

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

the class StructTests1 method test_addIntAndIntsFromStructWithNestedStructArray_1.

@Test
public void test_addIntAndIntsFromStructWithNestedStructArray_1() throws Throwable {
    GroupLayout intStruct = MemoryLayout.structLayout(JAVA_INT.withName("elem1"), JAVA_INT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, intStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), JAVA_INT.withName("elem2"));
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_INT, JAVA_INT, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addIntAndIntsFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        structSegmt.set(JAVA_INT, 0, 1111111);
        structSegmt.set(JAVA_INT, 4, 2222222);
        structSegmt.set(JAVA_INT, 8, 3333333);
        structSegmt.set(JAVA_INT, 12, 4444444);
        structSegmt.set(JAVA_INT, 16, 5555555);
        int result = (int) mh.invokeExact(6666666, structSegmt);
        Assert.assertEquals(result, 23333331);
    }
}