C# .NET 4.5 TcpClient 类是用什么语言实现的？

Question

I was wondering if anyone knows what language was used for the implementation. I looked at the msdn documentation to see if I could look at the implementation but I didn't see any there. I would like to know how it works at the lower levels.

Answer 1

It's implemented in C#. The reference source is public.

Eventually, the .NET code uses PInvoke to call native Win32 APIs. The Socket API also uses some native CLR hooks. For example, in the Overlapped system. That seems to be a pure performance optimization to me.

Basically, you could implement TcpClient yourself. Nothing magic about it.