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

Example 86 with MemoryAddress

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

the class PrimitiveTypeTests method test_addTwoLongs_fromMemAddr.

@Test
public void test_addTwoLongs_fromMemAddr() throws Throwable {
    MethodType mt = MethodType.methodType(long.class, long.class, long.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, longLayout);
    Symbol functionSymbol = nativeLib.lookup("add2Longs").get();
    MemoryAddress memAddr = functionSymbol.address();
    MethodHandle mh = clinker.downcallHandle(memAddr, mt, fd);
    long result = (long) mh.invokeExact(57424L, 698235L);
    Assert.assertEquals(result, 755659L);
    FunctionDescriptor fd2 = FunctionDescriptor.of(longLayout.withName("long"), longLayout.withName("long"), longLayout.withName("long"));
    mh = clinker.downcallHandle(memAddr, mt, fd2);
    result = (long) mh.invokeExact(111222L, 333444L);
    Assert.assertEquals(result, 444666L);
}

Example 87 with MemoryAddress

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

the class PrimitiveTypeTests method test_printfFromDefaultLibWithMemAddr_fromMemAddr.

@Test
public void test_printfFromDefaultLibWithMemAddr_fromMemAddr() throws Throwable {
    Symbol functionSymbol = defaultLib.lookup("printf").get();
    MemoryAddress memAddr = functionSymbol.address();
    MethodType mt = MethodType.methodType(int.class, MemoryAddress.class, int.class, int.class, int.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_INT, C_POINTER, C_INT, C_INT, C_INT);
    MethodHandle mh = clinker.downcallHandle(memAddr, mt, fd);
    MemorySegment formatMemSegment = CLinker.toCString("\n%d + %d = %d\n");
    mh.invoke(formatMemSegment.address(), 15, 27, 42);
    FunctionDescriptor fd2 = FunctionDescriptor.of(C_INT.withName("int"), C_POINTER.withName("pointer"), C_INT.withName("int"), C_INT.withName("int"), C_INT.withName("int"));
    mh = clinker.downcallHandle(memAddr, mt, fd2);
    mh.invoke(formatMemSegment.address(), 115, 127, 242);
}

Example 88 with MemoryAddress

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

the class StructTests2 method test_add2LongStructs_returnStructPointer_2.

@Test
public void test_add2LongStructs_returnStructPointer_2() 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(MemoryAddress.class, MemoryAddress.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_POINTER, C_POINTER, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2LongStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        longHandle1.set(structSegmt1, 1122334455L);
        longHandle2.set(structSegmt1, 5566778899L);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        longHandle1.set(structSegmt2, 9900112233L);
        longHandle2.set(structSegmt2, 3344556677L);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals(longHandle1.get(resultSegmt), 11022446688L);
        Assert.assertEquals(longHandle2.get(resultSegmt), 8911335576L);
    }
}

Example 89 with MemoryAddress

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

the class StructTests2 method test_add2ByteStructs_returnStructPointer_2.

@Test
public void test_add2ByteStructs_returnStructPointer_2() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    VarHandle byteHandle1 = structLayout.varHandle(byte.class, PathElement.groupElement("elem1"));
    VarHandle byteHandle2 = 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("add2ByteStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        byteHandle1.set(structSegmt1, (byte) 25);
        byteHandle2.set(structSegmt1, (byte) 11);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        byteHandle1.set(structSegmt2, (byte) 24);
        byteHandle2.set(structSegmt2, (byte) 13);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(functionSymbol, structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((byte) byteHandle1.get(resultSegmt), (byte) 49);
        Assert.assertEquals((byte) byteHandle2.get(resultSegmt), (byte) 24);
    }
}

Example 90 with MemoryAddress

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

the class StructTests1 method test_add2ShortStructs_returnStructPointer_1.

@Test
public void test_add2ShortStructs_returnStructPointer_1() throws Throwable {
    GroupLayout structLayout = MemoryLayout.structLayout(JAVA_SHORT.withName("elem1"), JAVA_SHORT.withName("elem2"));
    VarHandle shortHandle1 = structLayout.varHandle(PathElement.groupElement("elem1"));
    VarHandle shortHandle2 = structLayout.varHandle(PathElement.groupElement("elem2"));
    FunctionDescriptor fd = FunctionDescriptor.of(ADDRESS, ADDRESS, structLayout);
    NativeSymbol functionSymbol = nativeLibLookup.lookup("add2ShortStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.nativeAllocator(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.invoke(structSegmt1, structSegmt2);
        Assert.assertEquals(resultAddr.get(JAVA_SHORT, 0), 134);
        Assert.assertEquals(resultAddr.get(JAVA_SHORT, 2), 112);
    }
}