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

Example 56 with SequenceLayout

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

the class StructTests1 method test_addIntAndIntsFromStructWithNestedStructArray_withoutLayoutName_1.

@Test
public void test_addIntAndIntsFromStructWithNestedStructArray_withoutLayoutName_1() throws Throwable {
    GroupLayout intStruct = MemoryLayout.structLayout(C_INT, C_INT);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, intStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, C_INT);
    MethodType mt = MethodType.methodType(int.class, int.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_INT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addIntAndIntsFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        MemoryAccess.setIntAtOffset(structSegmt, 0, 1111111);
        MemoryAccess.setIntAtOffset(structSegmt, 4, 2222222);
        MemoryAccess.setIntAtOffset(structSegmt, 8, 3333333);
        MemoryAccess.setIntAtOffset(structSegmt, 12, 4444444);
        MemoryAccess.setIntAtOffset(structSegmt, 16, 5555555);
        int result = (int) mh.invokeExact(6666666, structSegmt);
        Assert.assertEquals(result, 23333331);
    }
}

Example 57 with SequenceLayout

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

the class StructTests2 method test_addCharAndCharsFromStructWithNestedCharArray_reverseOrder_2.

@Test
public void test_addCharAndCharsFromStructWithNestedCharArray_reverseOrder_2() throws Throwable {
    SequenceLayout charArray = MemoryLayout.sequenceLayout(2, C_SHORT);
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), charArray.withName("array_elem2"), MemoryLayout.paddingLayout(C_SHORT.bitSize()));
    MethodType mt = MethodType.methodType(char.class, char.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addCharAndCharsFromStructWithNestedCharArray_reverseOrder").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, 'A');
        MemoryAccess.setCharAtOffset(structSegmt, 2, 'B');
        MemoryAccess.setCharAtOffset(structSegmt, 4, 'C');
        char result = (char) mh.invokeExact(functionSymbol, 'D', structSegmt);
        Assert.assertEquals(result, 'G');
    }
}

Example 58 with SequenceLayout

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

the class StructTests2 method test_addDoubleAndDoublesFromStructWithNestedStructArray_withoutLayoutName_2.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedStructArray_withoutLayoutName_2() throws Throwable {
    GroupLayout doubleStruct = MemoryLayout.structLayout(C_DOUBLE, C_DOUBLE);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, doubleStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, C_DOUBLE);
    MethodType mt = MethodType.methodType(double.class, double.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_DOUBLE, C_DOUBLE, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addDoubleAndDoublesFromStructWithNestedStructArray").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 59 with SequenceLayout

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

the class StructTests2 method test_addDoubleAndDoublesFromStructWithNestedDoubleArray_reverseOrder_2.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedDoubleArray_reverseOrder_2() throws Throwable {
    SequenceLayout doubleArray = MemoryLayout.sequenceLayout(2, C_DOUBLE);
    GroupLayout structLayout = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), doubleArray.withName("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("addDoubleAndDoublesFromStructWithNestedDoubleArray_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);
        double result = (double) mh.invokeExact(functionSymbol, 444.444D, structSegmt);
        Assert.assertEquals(result, 1111.11D, 0.001D);
    }
}

Example 60 with SequenceLayout

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

the class StructTests2 method test_addLongAndLongsFromStructWithNestedStructArray_2.

@Test
public void test_addLongAndLongsFromStructWithNestedStructArray_2() throws Throwable {
    GroupLayout longStruct = MemoryLayout.structLayout(longLayout.withName("elem1"), longLayout.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, longStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), longLayout.withName("elem2"));
    MethodType mt = MethodType.methodType(long.class, long.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addLongAndLongsFromStructWithNestedStructArray").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, 111111111L);
        MemoryAccess.setLongAtOffset(structSegmt, 8, 222222222L);
        MemoryAccess.setLongAtOffset(structSegmt, 16, 333333333L);
        MemoryAccess.setLongAtOffset(structSegmt, 24, 444444444L);
        MemoryAccess.setLongAtOffset(structSegmt, 32, 555555555L);
        long result = (long) mh.invokeExact(functionSymbol, 666666666L, structSegmt);
        Assert.assertEquals(result, 2333333331L);
    }
}