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

Example 36 with SegmentAllocator

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

the class StructTests1 method test_addLongAndLongsFromStructWithNestedLongArray_withoutLayoutName_1.

@Test
public void test_addLongAndLongsFromStructWithNestedLongArray_withoutLayoutName_1() throws Throwable {
    SequenceLayout longArray = MemoryLayout.sequenceLayout(2, longLayout);
    GroupLayout structLayout = MemoryLayout.structLayout(longArray, longLayout);
    MethodType mt = MethodType.methodType(long.class, long.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addLongAndLongsFromStructWithNestedLongArray").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);
        long result = (long) mh.invokeExact(444444444L, structSegmt);
        Assert.assertEquals(result, 1111111110L);
    }
}

Example 37 with SegmentAllocator

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

the class StructTests1 method test_add3CharStructs_returnStruct_1.

@Test
public void test_add3CharStructs_returnStruct_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"), C_SHORT.withName("elem3"));
    VarHandle charHandle1 = structLayout.varHandle(char.class, PathElement.groupElement("elem1"));
    VarHandle charHandle2 = structLayout.varHandle(char.class, PathElement.groupElement("elem2"));
    VarHandle charHandle3 = structLayout.varHandle(char.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("add3CharStructs_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);
        charHandle1.set(structSegmt1, 'A');
        charHandle2.set(structSegmt1, 'B');
        charHandle3.set(structSegmt1, 'C');
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        charHandle1.set(structSegmt2, 'B');
        charHandle2.set(structSegmt2, 'C');
        charHandle3.set(structSegmt2, 'D');
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals(charHandle1.get(resultSegmt), 'B');
        Assert.assertEquals(charHandle2.get(resultSegmt), 'D');
        Assert.assertEquals(charHandle3.get(resultSegmt), 'F');
    }
}

Example 38 with SegmentAllocator

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

the class StructTests1 method test_add3IntStructs_returnStruct_1.

@Test
public void test_add3IntStructs_returnStruct_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"), C_INT.withName("elem3"));
    VarHandle intHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
    VarHandle intHandle2 = structLayout.varHandle(int.class, PathElement.groupElement("elem2"));
    VarHandle intHandle3 = structLayout.varHandle(int.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("add3IntStructs_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);
        intHandle1.set(structSegmt1, 11223344);
        intHandle2.set(structSegmt1, 55667788);
        intHandle3.set(structSegmt1, 99001122);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        intHandle1.set(structSegmt2, 33445566);
        intHandle2.set(structSegmt2, 77889900);
        intHandle3.set(structSegmt2, 44332211);
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals(intHandle1.get(resultSegmt), 44668910);
        Assert.assertEquals(intHandle2.get(resultSegmt), 133557688);
        Assert.assertEquals(intHandle3.get(resultSegmt), 143333333);
    }
}

Example 39 with SegmentAllocator

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

the class StructTests1 method test_add2IntStructs_returnStructPointer_1.

@Test
public void test_add2IntStructs_returnStructPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_INT.withName("elem1"), C_INT.withName("elem2"));
    VarHandle intHandle1 = structLayout.varHandle(int.class, PathElement.groupElement("elem1"));
    VarHandle intHandle2 = structLayout.varHandle(int.class, PathElement.groupElement("elem2"));
    MethodType mt = MethodType.methodType(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2IntStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        intHandle1.set(structSegmt1, 11223344);
        intHandle2.set(structSegmt1, 55667788);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        intHandle1.set(structSegmt2, 99001122);
        intHandle2.set(structSegmt2, 33445566);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals(intHandle1.get(resultSegmt), 110224466);
        Assert.assertEquals(intHandle2.get(resultSegmt), 89113354);
    }
}

Example 40 with SegmentAllocator

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

the class StructTests2 method test_addCharAndCharsFromStruct_2.

@Test
public void test_addCharAndCharsFromStruct_2() 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, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_SHORT, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addCharAndCharsFromStruct").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        charHandle1.set(structSegmt, 'A');
        charHandle2.set(structSegmt, 'B');
        char result = (char) mh.invokeExact(functionSymbol, 'C', structSegmt);
        Assert.assertEquals(result, 'D');
    }
}