unsafe private NativeRuntime.IFabricOperationData CreateNativeOperationData(IOperationData data, uint[] sizes)
{
NativeRuntime.IFabricOperationData operationData = null;
using (var pin = new PinBlittable(sizes))
{
operationData = this.operationDataFactory.CreateOperationData(pin.AddrOfPinnedObject(), (uint)sizes.Length);
}
// get a pointer to the memory that native code allocated in the operation data it created for us
uint countAllocatedByNative;
IntPtr nativeBuffersRaw = operationData.GetData(out countAllocatedByNative);
ReleaseAssert.AssertIfNot(countAllocatedByNative == (uint)sizes.Length, StringResources.Error_BufferNumberMismatach);
NativeTypes.FABRIC_OPERATION_DATA_BUFFER *nativeBuffers = (NativeTypes.FABRIC_OPERATION_DATA_BUFFER *)nativeBuffersRaw;
// copy the data into the buffers allocated by native
int index = 0;
foreach (var item in data)
{
NativeTypes.FABRIC_OPERATION_DATA_BUFFER *nativeBuffer = nativeBuffers + index;
ReleaseAssert.AssertIfNot(nativeBuffer->BufferSize == sizes[index], string.Format(CultureInfo.CurrentCulture, StringResources.Error_BufferAllocationSizeMismatch_Formatted, index, nativeBuffer->BufferSize, sizes[index]));
Marshal.Copy(item.Array, item.Offset, nativeBuffer->Buffer, item.Count);
index++;
}
return(operationData);
}
internal static OperationData CreateFromNative(NativeRuntime.IFabricOperationData operationData)
{
// null operationData is already handled by the caller.
Requires.Argument("operationData", operationData).NotNull();
uint count;
IntPtr buffer = operationData.GetData(out count);
return(OperationData.CreateFromNative(count, buffer));
}