ulimit on open sockets ?

[Maxim Veksler]

Hi,

I've written this code, the general idea was to listen on all 65535
port of tcp for connection.
"""
#!/usr/bin/env python

import socket, select

def get_non_blocking_socket(port_number):
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.setblocking(0)
    s.bind(('0.0.0.0', port_number))
    s.listen(1)
    return s

all_sockets = map(get_non_blocking_socket, xrange(10000, 15000))

while 1:
    ready_to_read, ready_to_write, in_error =
select.select(all_sockets, [], [], 0)
    for nb_active_socket in all_sockets:
        if nb_active_socket in ready_to_read:
            conn, addr = nb_active_socket.accept()
            while 1:
                data = conn.recv(1024)
                if not data: break
                conn.send(data)
            conn.close()
"""

The thing is that when I tried to run this at first I got
"""
python non_blocking_range.py
Traceback (most recent call last):
  File "non_blocking_range.py", line 12, in ?
    all_sockets = map(get_non_blocking_socket, xrange(10000, 15000))
  File "non_blocking_range.py", line 6, in get_non_blocking_socket
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  File "/usr/lib/python2.4/socket.py", line 148, in __init__
    _sock = _realsocket(family, type, proto)
socket.error: (24, 'Too many open files')
"""

So I set ulimit -n 500000, now I'm getting
"""
python non_blocking_range.py
Traceback (most recent call last):
  File "non_blocking_range.py", line 15, in ?
    ready_to_read, ready_to_write, in_error =
select.select(all_sockets, [], [], 0)
ValueError: filedescriptor out of range in select()
"""

Should I be using a different version of select or something? Or
should I implement this the other way around, if so please suggest
how.

Thank you very much,
(enthusiastically learning python) Maxim.

-- 
Cheers,
Maxim Veksler

"Free as in Freedom" - Do u GNU ?