1. I found out that TCPSocket contains several conditions and callbacks, 
but I couldn't find any docs or example of their usage. 
2. I also found #6563 <https://github.com/JuliaLang/julia/issues/6563> that 
discusses exactly the problem of listening to multiple conditions / 
channels. 

So if I manage to create a callback for incoming data, I will be able to 
borrow some ideas from (1) and come up with a `select` function that 
satisfies my needs. Does anybody have an example of using TCPSocket's 
callbacks/conditions?

On Thursday, May 12, 2016 at 12:45:44 AM UTC+3, Andrei Zh wrote:
>
> Given several TCPSocket-s, how can I sequentially poll them and read the 
> first that becomes readable?
>
> I believe *nix's poll/select functions provide something similar for files 
> (and Julia has `poll_fd`), but what is the best way to approach this task 
> for sockets?
>

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