From: Gin Mendi <gin18em@...>
Date: 2008-11-10T11:45:31+09:00
Subject: Re: Socket Progamming - Beginner questions

Adam Bender wrote:
> Threads can work, but most networking code I've written uses
> Kernel#select.  It's an incredibly powerful, yet somewhat hard to
> master, method that allows you to read and write on many sockets
> (actually IO objects) at the same time.  It sounds like you want two
> read objects, one for the server and one for the database, and that
> you want to write to the network socket (yes, can you can read and
> write to the same socket - just use "puts" as well as "gets", or
> whatever equivalent methods you like) in the part of the code that
> handles what happens when the database socket is ready to be read.
> 
> http://www.rubycentral.com/book/ref_m_kernel.html#Kernel.select
> 
> HTH,
> 
> Adam

Thanks Adam!

I looked for examples using select and I mostly found chat servers. I 
tried it out and it does look like an effective and powerful approach. I 
still though don't understand how to trigger a read from another socket 
if I want to monitor a directory or a database. I wish though I could 
find better examples in the internet. How would you set up a socket to 
monitor a directory or database or is my understanding of the matter 
off?

I checked out EventMachine as well which looks great just that since I 
want to learn I want to try out making something from scratch.


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