From: "Sandor Szücs" <sandor.szuecs@...>
Date: 2009-05-17T06:33:20+09:00
Subject: Re: "Too many open files - socket(2)" when invoking Socket.new


On 13.05.2009, at 16:41, Clemens Wyss wrote:

> Given the follwing code snippet:
>
>
> require 'socket'
> include Socket::Constants
begin
>
> socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
> sockaddr = Socket.pack_sockaddr_in( 1313, 'localhost' )
> socket.bind( sockaddr )
> socket.listen( 5 )
> client, client_sockaddr = socket.accept
> client.puts "Hello from script one!"
> puts "The client said, '#{client.readline.chomp}'"
> client.puts "Hello from script one!"
ensure
>
> socket.close
end


Try to add these statements in your code and reboot your box,
then it should not happen.

> On my WinXP development machine this script runs as expected.  
> Running it
> on a WinXpEmbedded machine throws a
>  Too many open files - socket(2) (Errno::EMFILE)
> exception on the line
>  socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
> What could cause this exception?


Too many open files for your OS results in such an exception.

regards, Sandor Szücs
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