/// <summary>
/// Returns the current count of strings, walking the buffer, if necessary.
/// </summary>
/// <returns></returns>
public int GetCount()
{
int GetCountRet = default;
int l = 0;
if (SafePtr.handle == IntPtr.Zero)
{
return(0);
}
if (_lpwstr)
{
var lpsz = new LPWSTR();
MemPtr m;
lpsz._ptr = _mem.handle;
do
{
if (Conversions.ToBoolean(lpsz.Length))
{
l += 1;
}
lpsz._ptr = lpsz._ptr + (lpsz.Length * 2 + 2);
m = lpsz._ptr;
if (m.get_ShortAt(0L) == 0)
{
break;
}
}while (true);
GC.SuppressFinalize(lpsz);
}
else
{
switch (SizeDescriptorLength)
{
case 2:
{
l = _mem.get_UShortAt(0L);
break;
}
case 4:
{
l = (int)_mem.get_UIntegerAt(0L);
break;
}
case 8:
{
l = (int)_mem.get_LongAt(0L);
break;
}
}
}
GetCountRet = l;
_count = l;
return(GetCountRet);
}
/// <summary>
/// Returns the BSTR preamble count of strings from the head of the memory buffer.
/// </summary>
/// <returns></returns>
private long BCount()
{
if (SafePtr is null || SafePtr.handle == IntPtr.Zero)
{
return(0L);
}
switch (SizeDescriptorLength)
{
case 2:
{
return(SafePtr.get_UShortAt(0L));
}
case 4:
{
return(SafePtr.get_UIntegerAt(0L));
}
case 8:
{
return((long)SafePtr.get_ULongAt(0L));
}
default:
{
return(0L);
}
}
}
public static object BytesToEnum(byte[] b, Type t)
{
SafePtr sp = b;
int x = Blob.BlobTypeSize(Blob.TypeToBlobType(t.GetEnumUnderlyingType()));
switch (x)
{
case 1:
{
if (Native.Unsigned(t))
{
return(Enum.ToObject(t, sp[0L]));
}
else
{
return(Enum.ToObject(t, sp.get_SByteAt(0L)));
}
break;
}
case 2:
{
if (Native.Unsigned(t))
{
return(Enum.ToObject(t, sp.get_UShortAt(0L)));
}
else
{
return(Enum.ToObject(t, sp.get_ShortAt(0L)));
}
break;
}
case 4:
{
if (Native.Unsigned(t))
{
return(Enum.ToObject(t, sp.get_UIntegerAt(0L)));
}
else
{
return(Enum.ToObject(t, sp.get_IntegerAt(0L)));
}
break;
}
case 8:
{
if (Native.Unsigned(t))
{
return(Enum.ToObject(t, sp.get_ULongAt(0L)));
}
else
{
return(Enum.ToObject(t, sp.get_LongAt(0L)));
}
break;
}
}
return(null);
}
