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

Example 51 with SegmentAllocator

use of jdk.incubator.foreign.SegmentAllocator 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);
    }
}

Example 52 with SegmentAllocator

use of jdk.incubator.foreign.SegmentAllocator 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 53 with SegmentAllocator

use of jdk.incubator.foreign.SegmentAllocator 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 54 with SegmentAllocator

use of jdk.incubator.foreign.SegmentAllocator 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);
    }
}

Example 55 with SegmentAllocator

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

the class StructTests2 method test_addLongAndLongsFromNestedStruct_withoutLayoutName_2.

@Test
public void test_addLongAndLongsFromNestedStruct_withoutLayoutName_2() throws Throwable {
    GroupLayout nestedStructLayout = MemoryLayout.structLayout(longLayout, longLayout);
    GroupLayout structLayout = MemoryLayout.structLayout(longLayout, nestedStructLayout);
    MethodType mt = MethodType.methodType(long.class, long.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addLongAndLongsFromNestedStruct").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setLongAtOffset(structSegmt, 0, 135791357913L);
        MemoryAccess.setLongAtOffset(structSegmt, 8, 246802468024L);
        MemoryAccess.setLongAtOffset(structSegmt, 16, 112233445566L);
        long result = (long) mh.invokeExact(functionSymbol, 778899001122L, structSegmt);
        Assert.assertEquals(result, 1273726272625L);
    }
}