public static unsafe void StructureToPtr(object structure, IntPtr ptr, bool fDeleteOld)
{
if (structure == null)
{
throw new ArgumentNullException(nameof(structure));
}
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (fDeleteOld)
{
DestroyStructure(ptr, structure.GetType());
}
RuntimeTypeHandle structureTypeHandle = structure.GetType().TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(SR.Argument_NeedNonGenericObject, nameof(structure));
}
IntPtr marshalStub;
if (structureTypeHandle.IsBlittable())
{
if (!RuntimeAugments.InteropCallbacks.TryGetStructMarshalStub(structureTypeHandle, out marshalStub))
{
marshalStub = IntPtr.Zero;
}
}
else
{
marshalStub = RuntimeAugments.InteropCallbacks.GetStructMarshalStub(structureTypeHandle);
}
if (marshalStub != IntPtr.Zero)
{
if (structureTypeHandle.IsValueType())
{
((delegate * < ref byte, ref byte, void >)marshalStub)(ref structure.GetRawData(), ref *(byte *)ptr);
}
else
{
((delegate * < object, ref byte, void >)marshalStub)(structure, ref *(byte *)ptr);
}
}
else
{
nuint size = (nuint)RuntimeAugments.InteropCallbacks.GetStructUnsafeStructSize(structureTypeHandle);
Buffer.Memmove(ref *(byte *)ptr, ref structure.GetRawData(), size);
}
}
public static unsafe void DestroyStructure(IntPtr ptr, Type structuretype)
{
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (structuretype == null)
{
throw new ArgumentNullException(nameof(structuretype));
}
RuntimeTypeHandle structureTypeHandle = structuretype.TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(SR.Argument_NeedNonGenericType, "t");
}
if (structureTypeHandle.IsEnum() ||
structureTypeHandle.IsInterface() ||
InteropExtensions.AreTypesAssignable(typeof(Delegate).TypeHandle, structureTypeHandle))
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
if (structureTypeHandle.IsBlittable())
{
// ok to call with blittable structure, but no work to do in this case.
return;
}
IntPtr destroyStructureStub = RuntimeAugments.InteropCallbacks.GetDestroyStructureStub(structureTypeHandle, out bool hasInvalidLayout);
if (hasInvalidLayout)
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
// DestroyStructureStub == IntPtr.Zero means its fields don't need to be destroied
if (destroyStructureStub != IntPtr.Zero)
{
CalliIntrinsics.Call <int>(
destroyStructureStub,
(void *)ptr // unsafe (no need to adjust as it is always struct)
);
}
}
public static unsafe void DestroyStructure(IntPtr ptr, Type structuretype)
{
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (structuretype == null)
{
throw new ArgumentNullException(nameof(structuretype));
}
RuntimeTypeHandle structureTypeHandle = structuretype.TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(SR.Argument_NeedNonGenericType, nameof(structuretype));
}
if (structureTypeHandle.IsEnum() ||
structureTypeHandle.IsInterface() ||
InteropExtensions.AreTypesAssignable(typeof(Delegate).TypeHandle, structureTypeHandle))
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
if (structureTypeHandle.IsBlittable())
{
// ok to call with blittable structure, but no work to do in this case.
return;
}
IntPtr destroyStructureStub = RuntimeInteropData.GetDestroyStructureStub(structureTypeHandle, out bool hasInvalidLayout);
if (hasInvalidLayout)
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
// DestroyStructureStub == IntPtr.Zero means its fields don't need to be destroyed
if (destroyStructureStub != IntPtr.Zero)
{
((delegate * < ref byte, void >)destroyStructureStub)(ref *(byte *)ptr);
}
}
internal static __ComGenericInterfaceDispatcher CreateGenericComDispatcher(RuntimeTypeHandle genericDispatcherDef, RuntimeTypeHandle[] genericArguments, __ComObject comThisPointer)
{
#if !RHTESTCL && !CORECLR && !CORERT
Debug.Assert(genericDispatcherDef.IsGenericTypeDefinition());
Debug.Assert(genericArguments != null && genericArguments.Length > 0);
RuntimeTypeHandle instantiatedDispatcherType;
if (!Internal.Runtime.TypeLoader.TypeLoaderEnvironment.Instance.TryGetConstructedGenericTypeForComponents(genericDispatcherDef, genericArguments, out instantiatedDispatcherType))
{
return(null); // ERROR
}
__ComGenericInterfaceDispatcher dispatcher = (__ComGenericInterfaceDispatcher)InteropExtensions.RuntimeNewObject(instantiatedDispatcherType);
dispatcher.m_comObject = comThisPointer;
return(dispatcher);
#else
return(null);
#endif
}
public static unsafe void StructureToPtr(object structure, IntPtr ptr, bool fDeleteOld)
{
if (structure == null)
{
throw new ArgumentNullException(nameof(structure));
}
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (fDeleteOld)
{
DestroyStructure(ptr, structure.GetType());
}
RuntimeTypeHandle structureTypeHandle = structure.GetType().TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(nameof(structure), SR.Argument_NeedNonGenericObject);
}
// Boxed struct start at offset 1 (EEType* at offset 0) while class start at offset 0
int offset = structureTypeHandle.IsValueType() ? 1 : 0;
IntPtr marshalStub;
if (structureTypeHandle.IsBlittable())
{
if (!RuntimeAugments.InteropCallbacks.TryGetStructMarshalStub(structureTypeHandle, out marshalStub))
{
marshalStub = IntPtr.Zero;
}
}
else
{
marshalStub = RuntimeAugments.InteropCallbacks.GetStructMarshalStub(structureTypeHandle);
}
if (marshalStub != IntPtr.Zero)
{
InteropExtensions.PinObjectAndCall(structure,
unboxedStructPtr =>
{
CalliIntrinsics.Call <int>(
marshalStub,
((void *)((IntPtr *)unboxedStructPtr + offset)), // safe (need to adjust offset as it could be class)
(void *)ptr // unsafe (no need to adjust as it is always struct)
);
});
}
else
{
int structSize = Marshal.SizeOf(structure);
InteropExtensions.PinObjectAndCall(structure,
unboxedStructPtr =>
{
InteropExtensions.Memcpy(
ptr, // unsafe (no need to adjust as it is always struct)
(IntPtr)((IntPtr *)unboxedStructPtr + offset), // safe (need to adjust offset as it could be class)
structSize
);
});
}
}