From: Dave Thomas <Dave@...>
Date: 2001-06-22T11:41:05+09:00
Subject: [ruby-talk:16738] Re: socket bug

Joseph McDonald <joe@vpop.net> writes:

>   I'm trying to track down a problem with sockets that I'm having.  I
>   am getting a couple of different errors.
> 
> #!/usr/local/bin/ruby
> 
> require 'socket'
> 
> trap("CLD") {
>   pid = Process.wait
> }
> 
> s = TCPServer.new("0.0.0.0",6666)
> while(new_sock = s.accept)
>   pid = fork
>   if(pid == nil)
>     line = new_sock.gets
>     new_sock.print("got #{line}\n")
>     new_sock.shutdown
>     exit
>   end
> end
> s.close


You're running out of FD's in the server process. You need to close the
new socket in the parent after you fork:

 s = TCPServer.new("0.0.0.0",6666)
 while(new_sock = s.accept)
   pid = fork
   if(pid == nil)
     line = new_sock.gets
     new_sock.print("got #{line}\n")
     new_sock.shutdown
     exit
   end
   new_sock.close        #<<<<<<<<<<<<<<
 end
 s.close


Dave