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

Example 41 with MemoryAddress

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

the class StructTests2 method test_add2FloatStructs_returnStructPointer_2.

@Test
public void test_add2FloatStructs_returnStructPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_FLOAT.withName("elem1"), C_FLOAT.withName("elem2"));
    VarHandle floatHandle1 = structLayout.varHandle(float.class, PathElement.groupElement("elem1"));
    VarHandle floatHandle2 = structLayout.varHandle(float.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("add2FloatStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt1, 25.12F);
        floatHandle2.set(structSegmt1, 11.23F);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt2, 24.34F);
        floatHandle2.set(structSegmt2, 13.45F);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((float) floatHandle1.get(resultSegmt), 49.46F, 0.01F);
        Assert.assertEquals((float) floatHandle2.get(resultSegmt), 24.68F, 0.01F);
    }
}

Example 42 with MemoryAddress

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

the class StructTests1 method test_addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer_1.

@Test
public void test_addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_DOUBLE.withName("elem1"), C_DOUBLE.withName("elem2"));
    VarHandle doubleHandle1 = structLayout.varHandle(double.class, PathElement.groupElement("elem1"));
    VarHandle doubleHandle2 = structLayout.varHandle(double.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("addDoubleFromPointerAndDoublesFromStruct_returnDoublePointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment doubleSegmt = allocator.allocate(C_DOUBLE);
        MemoryAccess.setDouble(doubleSegmt, 212.123D);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        doubleHandle1.set(structSegmt, 218.456D);
        doubleHandle2.set(structSegmt, 219.789D);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(doubleSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_DOUBLE.byteSize(), scope);
        VarHandle doubleHandle = MemoryHandles.varHandle(double.class, ByteOrder.nativeOrder());
        double result = (double) doubleHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 650.368D, 0.001D);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), doubleSegmt.address().toRawLongValue());
    }
}

Example 43 with MemoryAddress

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

the class StructTests2 method test_add2ShortStructs_returnStructPointer_2.

@Test
public void test_add2ShortStructs_returnStructPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_SHORT.withName("elem1"), C_SHORT.withName("elem2"));
    VarHandle shortHandle1 = structLayout.varHandle(short.class, PathElement.groupElement("elem1"));
    VarHandle shortHandle2 = structLayout.varHandle(short.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("add2ShortStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        shortHandle1.set(structSegmt1, (short) 56);
        shortHandle2.set(structSegmt1, (short) 45);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        shortHandle1.set(structSegmt2, (short) 78);
        shortHandle2.set(structSegmt2, (short) 67);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((short) shortHandle1.get(resultSegmt), (short) 134);
        Assert.assertEquals((short) shortHandle2.get(resultSegmt), (short) 112);
    }
}

Example 44 with MemoryAddress

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

the class StructTests2 method test_add2BoolStructsWithXor_returnStructPointer_2.

@Test
public void test_add2BoolStructsWithXor_returnStructPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    VarHandle boolHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
    VarHandle boolHandle2 = structLayout.varHandle(byte.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("add2BoolStructsWithXor_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        boolHandle1.set(structSegmt1, (byte) 1);
        boolHandle2.set(structSegmt1, (byte) 0);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        boolHandle1.set(structSegmt2, (byte) 1);
        boolHandle2.set(structSegmt2, (byte) 1);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((byte) boolHandle1.get(resultSegmt), (byte) 0);
        Assert.assertEquals((byte) boolHandle2.get(resultSegmt), (byte) 1);
    }
}

Example 45 with MemoryAddress

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

the class StructTests2 method test_addFloatFromPointerAndFloatsFromStruct_returnFloatPointer_2.

@Test
public void test_addFloatFromPointerAndFloatsFromStruct_returnFloatPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_FLOAT.withName("elem1"), C_FLOAT.withName("elem2"));
    VarHandle floatHandle1 = structLayout.varHandle(float.class, PathElement.groupElement("elem1"));
    VarHandle floatHandle2 = structLayout.varHandle(float.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("addFloatFromPointerAndFloatsFromStruct_returnFloatPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment floatSegmt = allocator.allocate(C_FLOAT);
        MemoryAccess.setFloat(floatSegmt, 12.12F);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        floatHandle1.set(structSegmt, 18.23F);
        floatHandle2.set(structSegmt, 19.34F);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, floatSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_FLOAT.byteSize(), scope);
        VarHandle floatHandle = MemoryHandles.varHandle(float.class, ByteOrder.nativeOrder());
        float result = (float) floatHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 49.69F, 0.01F);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), floatSegmt.address().toRawLongValue());
    }
}