public static unsafe Item ConvertItem(CEventTrace.Item *itemContainer)
{
var newItem = new Item();
if (itemContainer->ItemType == 0)
{
// The item is newly initialized so return an empty Item
return(newItem);
}
newItem.ItemType = (ItemType)itemContainer->ItemType;
switch (newItem.ItemType)
{
case ItemType.Span:
newItem.Span = new Span();
var newSpan = newItem.Span.Value;
ApiInterop.Memcpy(newSpan.Id.Data, itemContainer->ItemUnion.Span.Id.Data, SpanId.SpanIdSize);
newSpan.Causes = new SpanId[(int)itemContainer->ItemUnion.Span.CauseCount];
for (var i = 0; i < newSpan.Causes.Length; i++)
{
fixed(byte *spanIdDest = newSpan.Causes[i].Data)
{
ApiInterop.Memcpy(spanIdDest, itemContainer->ItemUnion.Span.Causes[i].Data, SpanId.SpanIdSize);
}
}
newItem.Span = newSpan;
break;
case ItemType.Event:
newItem.Event = new Event();
var newEvent = newItem.Event.GetValueOrDefault();
newEvent.Id = new SpanId();
ApiInterop.Memcpy(newEvent.Id.Data, itemContainer->ItemUnion.Event.Id.Data, SpanId.SpanIdSize);
newEvent.UnixTimestampMillis = itemContainer->ItemUnion.Event.UnixTimestampMillis;
newEvent.Type = ApiInterop.FromUtf8Cstr(itemContainer->ItemUnion.Event.Type);
newEvent.Message = ApiInterop.FromUtf8Cstr(itemContainer->ItemUnion.Event.Message);
newEvent.Data = new TraceEventData(itemContainer->ItemUnion.Event.Data);
var fields = newEvent.Data.GetAll();
// Release memory allocated to the underlying event data in the itemContainer
newEvent.Data.EventData.Dispose();
// Add the data to the newly initialized event data struct
newEvent.Data = new TraceEventData(fields);
newItem.Event = newEvent;
break;
default:
throw new NotSupportedException("Invalid Item Type provided.");
}
return(newItem);
}
private static void TraceCallbackThunk(void *callbackPtr, CEventTrace.Item *responseItem)
{
var callbackHandle = (EventTracerParameters)GCHandle.FromIntPtr((IntPtr)callbackPtr).Target;
callbackHandle.TraceCallback(callbackHandle.UserData, ConvertItem(responseItem));
}
