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

Example 16 with SegmentAllocator

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

the class StructTests1 method test_addIntAndIntsFromStructWithNestedStructArray_reverseOrder_1.

@Test
public void test_addIntAndIntsFromStructWithNestedStructArray_reverseOrder_1() throws Throwable {
    GroupLayout intStruct = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, intStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), structArray.withName("struct_array_elem2"));
    MethodType mt = MethodType.methodType(int.class, int.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_INT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addIntAndIntsFromStructWithNestedStructArray_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.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 17 with SegmentAllocator

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

the class StructTests1 method test_addLongAndLongsFromStructWithNestedStructArray_withoutLayoutName_1.

@Test
public void test_addLongAndLongsFromStructWithNestedStructArray_withoutLayoutName_1() throws Throwable {
    GroupLayout longStruct = MemoryLayout.structLayout(longLayout, longLayout);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, longStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, longLayout);
    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(functionSymbol, 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(666666666L, structSegmt);
        Assert.assertEquals(result, 2333333331L);
    }
}

Example 18 with SegmentAllocator

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

the class StructTests1 method test_add3BoolStructsWithXor_returnStruct_1.

@Test
public void test_add3BoolStructsWithXor_returnStruct_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"), C_CHAR.withName("elem3"), MemoryLayout.paddingLayout(C_CHAR.bitSize()));
    VarHandle boolHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
    VarHandle boolHandle2 = structLayout.varHandle(byte.class, PathElement.groupElement("elem2"));
    VarHandle boolHandle3 = structLayout.varHandle(byte.class, PathElement.groupElement("elem3"));
    MethodType mt = MethodType.methodType(MemorySegment.class, MemorySegment.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add3BoolStructsWithXor_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);
        boolHandle1.set(structSegmt1, (byte) 1);
        boolHandle2.set(structSegmt1, (byte) 0);
        boolHandle3.set(structSegmt1, (byte) 1);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        boolHandle1.set(structSegmt2, (byte) 1);
        boolHandle2.set(structSegmt2, (byte) 1);
        boolHandle3.set(structSegmt2, (byte) 0);
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals((byte) boolHandle1.get(resultSegmt), (byte) 0);
        Assert.assertEquals((byte) boolHandle2.get(resultSegmt), (byte) 1);
        Assert.assertEquals((byte) boolHandle3.get(resultSegmt), (byte) 1);
    }
}

Example 19 with SegmentAllocator

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

the class StructTests1 method test_addShortAndShortsFromNestedStruct_1.

@Test
public void test_addShortAndShortsFromNestedStruct_1() throws Throwable {
    GroupLayout nestedStructLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    GroupLayout structLayout = MemoryLayout.structLayout(nestedStructLayout.withName("struct_elem1"), C_SHORT.withName("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("addShortAndShortsFromNestedStruct").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) 31);
        MemoryAccess.setShortAtOffset(structSegmt, 2, (short) 33);
        MemoryAccess.setShortAtOffset(structSegmt, 4, (short) 35);
        short result = (short) mh.invokeExact((short) 37, structSegmt);
        Assert.assertEquals(result, 136);
    }
}

Example 20 with SegmentAllocator

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

the class StructTests1 method test_addFloatAndFloatsFromStructWithNestedFloatArray_reverseOrder_1.

@Test
public void test_addFloatAndFloatsFromStructWithNestedFloatArray_reverseOrder_1() throws Throwable {
    SequenceLayout floatArray = MemoryLayout.sequenceLayout(2, C_FLOAT);
    GroupLayout structLayout = MemoryLayout.structLayout(C_FLOAT.withName("elem1"), floatArray.withName("array_elem2"));
    MethodType mt = MethodType.methodType(float.class, float.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_FLOAT, C_FLOAT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedFloatArray_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.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);
    }
}