Is Socket.BeginReceive(IList<ArraySegment<byte>> buffers.. Not Asynchronous?

Question

Hi all,

I have been looking to implement a custom class of :

IList<ArraySegment<byte>>

this will be passed to a socket, and used as the buffer to receive data from that Socket.

Socket.BeginReceive(
    IList<ArraySegment<Byte>>, SocketFlags, AsyncCallback, Object
    )

MSDN Documentation

While testing I have found that when calling

BeginReceive(IList..

It blocks?! When replacing this with the BeginReceive(byte[]... is acts asynchronously.

Has anyone else come accross this?

I will post my testing code up if required but would like to hear from anyone out there before I uglify this question :)

Thanks!

Answer 1

So! I found out the issue.

As I had a

Console.WriteLine

present in my custom

IList<ArraySegment<byte>>

then the method was not acting asynchronously on compile :)