private static void AddNode(ref FanoutPathDescriptor desc, int hop, long id)
{
switch (hop)
{
case 0:
throw new NotImplementedException();
case 1:
desc.hop_1 = id;
break;
case 2:
desc.hop_2 = id;
break;
case 3:
desc.hop_3 = id;
break;
default:
if (desc.hop_n == null)
{
desc.hop_n = new List <long>();
}
desc.hop_n.Add(id);
break;
}
}
/// <summary>
/// Caller should guarantee that path has sufficient storage space. No check on path.hop_n
/// </summary>
private void SetCellIdInPath(ref FanoutPathDescriptor path, int hop, long id)
{
switch (hop)
{
case 0:
path.hop_0 = id;
break;
case 1:
path.hop_1 = id;
break;
case 2:
path.hop_2 = id;
break;
case 3:
path.hop_3 = id;
break;
default:
path.hop_n[hop - 4] = id;
break;
}
}
private unsafe FanoutPathDescriptor GetPathDescriptor(long *ptr, int hop)
{
FanoutPathDescriptor path = new FanoutPathDescriptor();
if (hop > 3)
{
path.hop_n = new List <long>(Enumerable.Repeat(0L, hop - 3));
}
for (int i = 0; i <= hop; ++i)
{
SetCellIdInPath(ref path, i, ptr[i]);
}
return(path);
}
private long GetCellIdInPath(FanoutPathDescriptor path, int hop)
{
switch (hop)
{
case 0:
return(path.hop_0);
case 1:
return(path.hop_1.Value);
case 2:
return(path.hop_2.Value);
case 3:
return(path.hop_3.Value);
default:
return(path.hop_n[hop - 4]);
}
}
