Search in sources :

Example 1 with SegmentAllocator

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

the class StructTests1 method test_addByteAndBytesFromNestedStruct_1.

@Test
public void test_addByteAndBytesFromNestedStruct_1() throws Throwable {
    GroupLayout nestedStructLayout = MemoryLayout.structLayout(C_CHAR.withName("elem1"), C_CHAR.withName("elem2"));
    GroupLayout structLayout = MemoryLayout.structLayout(nestedStructLayout.withName("struct_elem1"), C_CHAR.withName("elem2"));
    MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromNestedStruct").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) 11);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 22);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 33);
        byte result = (byte) mh.invokeExact((byte) 46, structSegmt);
        Assert.assertEquals(result, 112);
    }
}
Also used : MethodType(java.lang.invoke.MethodType) ResourceScope(jdk.incubator.foreign.ResourceScope) SegmentAllocator(jdk.incubator.foreign.SegmentAllocator) GroupLayout(jdk.incubator.foreign.GroupLayout) Addressable(jdk.incubator.foreign.Addressable) FunctionDescriptor(jdk.incubator.foreign.FunctionDescriptor) MemorySegment(jdk.incubator.foreign.MemorySegment) MethodHandle(java.lang.invoke.MethodHandle) Test(org.testng.annotations.Test)

Example 2 with SegmentAllocator

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

the class StructTests1 method test_addByteAndBytesFromStructWithNestedByteArray_1.

@Test
public void test_addByteAndBytesFromStructWithNestedByteArray_1() throws Throwable {
    SequenceLayout byteArray = MemoryLayout.sequenceLayout(2, C_CHAR);
    GroupLayout structLayout = MemoryLayout.structLayout(byteArray.withName("array_elem1"), C_CHAR.withName("elem2"), MemoryLayout.paddingLayout(C_CHAR.bitSize()));
    MethodType mt = MethodType.methodType(byte.class, byte.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("addByteAndBytesFromStructWithNestedByteArray").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) 11);
        MemoryAccess.setByteAtOffset(structSegmt, 1, (byte) 12);
        MemoryAccess.setByteAtOffset(structSegmt, 2, (byte) 13);
        byte result = (byte) mh.invokeExact((byte) 14, structSegmt);
        Assert.assertEquals(result, 50);
    }
}
Also used : MethodType(java.lang.invoke.MethodType) ResourceScope(jdk.incubator.foreign.ResourceScope) SegmentAllocator(jdk.incubator.foreign.SegmentAllocator) GroupLayout(jdk.incubator.foreign.GroupLayout) Addressable(jdk.incubator.foreign.Addressable) FunctionDescriptor(jdk.incubator.foreign.FunctionDescriptor) MemorySegment(jdk.incubator.foreign.MemorySegment) SequenceLayout(jdk.incubator.foreign.SequenceLayout) MethodHandle(java.lang.invoke.MethodHandle) Test(org.testng.annotations.Test)

Example 3 with SegmentAllocator

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

the class StructTests1 method test_add2DoubleStructs_returnStructPointer_1.

@Test
public void test_add2DoubleStructs_returnStructPointer_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("add2DoubleStructs_returnStructPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment structSegmt1 = allocator.allocate(structLayout);
        doubleHandle1.set(structSegmt1, 11.222D);
        doubleHandle2.set(structSegmt1, 22.333D);
        MemorySegment structSegmt2 = allocator.allocate(structLayout);
        doubleHandle1.set(structSegmt2, 33.444D);
        doubleHandle2.set(structSegmt2, 44.555D);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(structSegmt1.address(), structSegmt2);
        MemorySegment resultSegmt = resultAddr.asSegment(structLayout.byteSize(), scope);
        Assert.assertEquals((double) doubleHandle1.get(resultSegmt), 44.666D, 0.001D);
        Assert.assertEquals((double) doubleHandle2.get(resultSegmt), 66.888D, 0.001D);
    }
}
Also used : MethodType(java.lang.invoke.MethodType) VarHandle(java.lang.invoke.VarHandle) ResourceScope(jdk.incubator.foreign.ResourceScope) SegmentAllocator(jdk.incubator.foreign.SegmentAllocator) GroupLayout(jdk.incubator.foreign.GroupLayout) Addressable(jdk.incubator.foreign.Addressable) FunctionDescriptor(jdk.incubator.foreign.FunctionDescriptor) MemoryAddress(jdk.incubator.foreign.MemoryAddress) MemorySegment(jdk.incubator.foreign.MemorySegment) MethodHandle(java.lang.invoke.MethodHandle) Test(org.testng.annotations.Test)

Example 4 with SegmentAllocator

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

the class StructTests1 method test_add2ShortStructs_returnStruct_1.

@Test
public void test_add2ShortStructs_returnStruct_1() 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(MemorySegment.class, MemorySegment.class, MemorySegment.class);
    FunctionDescriptor fd = FunctionDescriptor.of(structLayout, structLayout, structLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2ShortStructs_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);
        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);
        MemorySegment resultSegmt = (MemorySegment) mh.invokeExact(structSegmt1, structSegmt2);
        Assert.assertEquals((short) shortHandle1.get(resultSegmt), (short) 134);
        Assert.assertEquals((short) shortHandle2.get(resultSegmt), (short) 112);
    }
}
Also used : MethodType(java.lang.invoke.MethodType) VarHandle(java.lang.invoke.VarHandle) ResourceScope(jdk.incubator.foreign.ResourceScope) SegmentAllocator(jdk.incubator.foreign.SegmentAllocator) GroupLayout(jdk.incubator.foreign.GroupLayout) Addressable(jdk.incubator.foreign.Addressable) FunctionDescriptor(jdk.incubator.foreign.FunctionDescriptor) MemorySegment(jdk.incubator.foreign.MemorySegment) MethodHandle(java.lang.invoke.MethodHandle) Test(org.testng.annotations.Test)

Example 5 with SegmentAllocator

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

the class StructTests1 method test_addIntFromPointerAndIntsFromStruct_returnIntPointer_1.

@Test
public void test_addIntFromPointerAndIntsFromStruct_returnIntPointer_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("addIntFromPointerAndIntsFromStruct_returnIntPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    try (ResourceScope scope = ResourceScope.newConfinedScope()) {
        SegmentAllocator allocator = SegmentAllocator.ofScope(scope);
        MemorySegment intSegmt = allocator.allocate(C_INT);
        MemoryAccess.setInt(intSegmt, 1122333);
        MemorySegment structSegmt = allocator.allocate(structLayout);
        intHandle1.set(structSegmt, 4455666);
        intHandle2.set(structSegmt, 7788999);
        MemoryAddress resultAddr = (MemoryAddress) mh.invokeExact(intSegmt.address(), structSegmt);
        MemorySegment resultSegmt = resultAddr.asSegment(C_INT.byteSize(), scope);
        VarHandle intHandle = MemoryHandles.varHandle(int.class, ByteOrder.nativeOrder());
        int result = (int) intHandle.get(resultSegmt, 0);
        Assert.assertEquals(result, 13366998);
        Assert.assertEquals(resultSegmt.address().toRawLongValue(), intSegmt.address().toRawLongValue());
    }
}
Also used : MethodType(java.lang.invoke.MethodType) VarHandle(java.lang.invoke.VarHandle) ResourceScope(jdk.incubator.foreign.ResourceScope) SegmentAllocator(jdk.incubator.foreign.SegmentAllocator) GroupLayout(jdk.incubator.foreign.GroupLayout) Addressable(jdk.incubator.foreign.Addressable) FunctionDescriptor(jdk.incubator.foreign.FunctionDescriptor) MemoryAddress(jdk.incubator.foreign.MemoryAddress) MemorySegment(jdk.incubator.foreign.MemorySegment) MethodHandle(java.lang.invoke.MethodHandle) Test(org.testng.annotations.Test)

Aggregations

MethodHandle (java.lang.invoke.MethodHandle)541 FunctionDescriptor (jdk.incubator.foreign.FunctionDescriptor)541 MemorySegment (jdk.incubator.foreign.MemorySegment)541 ResourceScope (jdk.incubator.foreign.ResourceScope)541 SegmentAllocator (jdk.incubator.foreign.SegmentAllocator)541 Test (org.testng.annotations.Test)541 GroupLayout (jdk.incubator.foreign.GroupLayout)540 NativeSymbol (jdk.incubator.foreign.NativeSymbol)271 MethodType (java.lang.invoke.MethodType)270 Addressable (jdk.incubator.foreign.Addressable)270 VarHandle (java.lang.invoke.VarHandle)254 SequenceLayout (jdk.incubator.foreign.SequenceLayout)192 MemoryAddress (jdk.incubator.foreign.MemoryAddress)64 VaList (jdk.incubator.foreign.VaList)1