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

Example 86 with SequenceLayout

use of jdk.incubator.foreign.SequenceLayout 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, JAVA_FLOAT);
    GroupLayout structLayout = MemoryLayout.structLayout(floatArray, JAVA_FLOAT);
    FunctionDescriptor fd = FunctionDescriptor.of(JAVA_FLOAT, JAVA_FLOAT, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedFloatArray").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);
        float result = (float) mh.invokeExact(444.44F, structSegmt);
        Assert.assertEquals(result, 1111.1F, 0.01F);
    }
}

Example 87 with SequenceLayout

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

the class StructTests1 method test_addDoubleAndDoublesFromStructWithNestedStructArray_1.

@Test
public void test_addDoubleAndDoublesFromStructWithNestedStructArray_1() throws Throwable {
    GroupLayout doubleStruct = MemoryLayout.structLayout(JAVA_DOUBLE.withName("elem1"), JAVA_DOUBLE.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, doubleStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), JAVA_DOUBLE.withName("elem2"));
    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 88 with SequenceLayout

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

the class StructTests2 method test_addCharAndCharsFromStructWithNestedStructArray_withoutLayoutName_2.

@Test
public void test_addCharAndCharsFromStructWithNestedStructArray_withoutLayoutName_2() throws Throwable {
    GroupLayout charStruct = MemoryLayout.structLayout(C_SHORT, C_SHORT);
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, charStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray, C_SHORT);
    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 89 with SequenceLayout

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

the class StructTests2 method test_addIntAndIntsFromStructWithNestedStructArray_2.

@Test
public void test_addIntAndIntsFromStructWithNestedStructArray_2() throws Throwable {
    GroupLayout intStruct = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, intStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), C_INT.withName("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").get();
    MethodHandle mh = clinker.downcallHandle(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(functionSymbol, 6666666, structSegmt);
        Assert.assertEquals(result, 23333331);
    }
}

Example 90 with SequenceLayout

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

the class StructTests2 method test_addFloatAndFloatsFromStructWithNestedStructArray_2.

@Test
public void test_addFloatAndFloatsFromStructWithNestedStructArray_2() throws Throwable {
    GroupLayout floatStruct = MemoryLayout.structLayout(C_FLOAT.withName("elem1"), C_FLOAT.withName("elem2"));
    SequenceLayout structArray = MemoryLayout.sequenceLayout(2, floatStruct);
    GroupLayout structLayout = MemoryLayout.structLayout(structArray.withName("struct_array_elem1"), C_FLOAT.withName("elem2"));
    MethodType mt = MethodType.methodType(float.class, float.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_FLOAT, C_FLOAT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addFloatAndFloatsFromStructWithNestedStructArray").get();
    MethodHandle mh = clinker.downcallHandle(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);
        MemoryAccess.setFloatAtOffset(structSegmt, 12, 444.44F);
        MemoryAccess.setFloatAtOffset(structSegmt, 16, 555.55F);
        float result = (float) mh.invokeExact(functionSymbol, 666.66F, structSegmt);
        Assert.assertEquals(result, 2333.31F, 0.01F);
    }
}