From: "David S." <dgjs@...>
Date: 2001-03-07T06:50:47+09:00
Subject: [ruby-talk:12186] Re: Nonblocking Read]

On Wed, Mar 07, 2001 at 06:12:55AM +0900, Alex McHale wrote:
> This is what I had initially seen - but in my tests, it still *seems* to 
> be blocking.  For example (this is not what will be the end product, this 
> is a simple conversion of my current code to sysread, dysfunctional as it 
> is).
> 
> Thread.start do
>   print "Beginning\n"
>   while player.connected and (incomm = player.socket.sysread 1)
>     print "Inside loop\n"
>     incomm.chop!
>     player.inbuff= incomm
>     sleep 0.1
>     print "Done with loop\n"
>   end
>   print "Ending\n"
> end

The UNIX call for doing it would be something like

	fcntl(fd, F_SETFL, O_NONBLOCK)

In Ruby you could do

	player.socket.fcntl(...)

but I don't know if Ruby makes the constants 'F_SETFL' or 'O_NONBLOCK'
available.  You probably need to look the 'fcntl' man page on your
system, and the 'fcntl.h' header file.

David S.
> Thanks,
>    Alex McHale