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

Example 56 with SegmentAllocator

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

the class StructTests2 method test_addDoubleAndDoublesFromStructWithNestedStructArray_reverseOrder_2.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedStructArray_reverseOrder_2() throws Throwable {
    GroupLayout doubleStruct = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), C_DOUBLE.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, doubleStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), structArray.withName("struct_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("addDoubleAndDoublesFromStructWithNestedStructArray_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);
        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 57 with SegmentAllocator

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

the class StructTests1 method test_add2LongStructs_returnStruct_1.

@Test
public void test_add2LongStructs_returnStruct_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(longLayout.withName("elem1"), longLayout.withName("elem2"));
    VarHandle longHandle1 = structLayout.varHandle(long.class, PathElement.groupElement("elem1"));
    VarHandle longHandle2 = structLayout.varHandle(long.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("add2LongStructs_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);
        longHandle1.set(structSegmt1, 987654321987L);
        longHandle2.set(structSegmt1, 123456789123L);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        longHandle1.set(structSegmt2, 224466880022L);
        longHandle2.set(structSegmt2, 113355779911L);
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals(longHandle1.get(resultSegmt), 1212121202009L);
        Assert.assertEquals(longHandle2.get(resultSegmt), 236812569034L);
    }
}

Example 58 with SegmentAllocator

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

the class StructTests1 method test_addFloatAndFloatsFromStructWithNestedFloatArray_withoutLayoutName_1.

@Test
public void test_addFloatAndFloatsFromStructWithNestedFloatArray_withoutLayoutName_1() throws Throwable {
    SequenceLayout floatArray = MemoryLayout.sequenceLayout(2, C_FLOAT);
    GroupLayout structLayout = MemoryLayout.structLayout(floatArray, C_FLOAT);
    MethodType mt = MethodType.methodType(float.class, float.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_FLOAT, C_FLOAT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedFloatArray").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);
    }
}

Example 59 with SegmentAllocator

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

the class StructTests1 method test_addByteAndBytesFromStructWithNestedStructArray_reverseOrder_1.

@Test
public void test_addByteAndBytesFromStructWithNestedStructArray_reverseOrder_1() throws Throwable {
    GroupLayout byteStruct = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, byteStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), structArray.withName("struct_array_elem2"), MemoryLayout.paddingLayout(C_CHAR.bitSize() * 3));
    MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromStructWithNestedStructArray_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) 12);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 14);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 16);
        MemoryAccess.setByteAtOffset(structSegmt, 3, (byte) 18);
        MemoryAccess.setByteAtOffset(structSegmt, 4, (byte) 20);
        byte result = (byte) mh.invokeExact((byte) 22, structSegmt);
        Assert.assertEquals(result, 102);
    }
}

Example 60 with SegmentAllocator

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

the class StructTests1 method test_addCharAndCharsFromStructPointer_1.

@Test
public void test_addCharAndCharsFromStructPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    VarHandle charHandle1 = structLayout.varHandle(char.class, PathElement.groupElement("elem1"));
    VarHandle charHandle2 = structLayout.varHandle(char.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(char.class, char.class, MemoryAddress.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, C_POINTER);
    Addressable functionSymbol = nativeLibLookup.lookup("addCharAndCharsFromStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        charHandle1.set(structSegmt, 'H');
        charHandle2.set(structSegmt, 'I');
        char result = (char) mh.invokeExact('G', structSegmt.address());
        Assert.assertEquals(result, 'V');
    }
}