client server question

[John]

I have a simple script that runs a server where one client can connect.
I would like to make it so that many clients can connect to one server
on the same port. Where can I find how to do this?

Thanks,
--j

[Peter Hansen]

Re: client server question

John wrote:[color=blue]
> I have a simple script that runs a server where one client can connect.
> I would like to make it so that many clients can connect to one server
> on the same port. Where can I find how to do this?[/color]

Start by reading http://www.catb.org/~esr/faqs/smart-questions.html to
learn how to ask better questions.

Then consider that "script that runs a server" could mean either you've
written a Python "script" that runs *as* a server, but has the
limitation of only one client connection at a time, or it could mean
that your script simply runs (via, for example, a call to os.system())
an external server program which has this limitation.

Given the ambiguity of your request, it's impossible to give a useful
answer without lots of guessing. Please clear up the above question and
provide much more detail and you'll likely get a more directly useful
response.

-Peter

[Chris Curvey]

Re: client server question

import threading
import logging

############### ############### ############### ############### ##########
class Reader(threadin g.Thread):
def __init__(self, clientsock):
threading.Threa d.__init__(self )
self.logger = logging.getLogg er("Reader")

#-----------------------------------------------------------------
def run(self):
self.logger.inf o("New child %s" %
(threading.curr entThread().get Name()))
self.logger.inf o("Got connection from %s" %
(clientsock.get peername()))

############### ############### ############### ############### ########
# set up a socket to listen for incoming connections from our clients
s = socket.socket(s ocket.AF_INET, socket.SOCK_STR EAM)
s.setsockopt(so cket.SOL_SOCKET , socket.SO_REUSE ADDR, 1)
s.bind((host, port))
s.listen(1)

while True:
try:
clientsock, clientaddr = s.accept()
except KeyboardInterru pt:
raise
except:
traceback.print _exc()
continue

client = Reader(clientso ck)
client.setDaemo n(1)
client.start()

[John]

Re: client server question

Thanks a lot,
I think I could modify this to get my work done.
--j

Chris Curvey wrote:[color=blue]
> import threading
> import logging
>
> ############### ############### ############### ############### ##########
> class Reader(threadin g.Thread):
> def __init__(self, clientsock):
> threading.Threa d.__init__(self )
> self.logger = logging.getLogg er("Reader")
>
> #-----------------------------------------------------------------
> def run(self):
> self.logger.inf o("New child %s" %
> (threading.curr entThread().get Name()))
> self.logger.inf o("Got connection from %s" %
> (clientsock.get peername()))
>
> ############### ############### ############### ############### ########
> # set up a socket to listen for incoming connections from our clients
> s = socket.socket(s ocket.AF_INET, socket.SOCK_STR EAM)
> s.setsockopt(so cket.SOL_SOCKET , socket.SO_REUSE ADDR, 1)
> s.bind((host, port))
> s.listen(1)
>
> while True:
> try:
> clientsock, clientaddr = s.accept()
> except KeyboardInterru pt:
> raise
> except:
> traceback.print _exc()
> continue
>
> client = Reader(clientso ck)
> client.setDaemo n(1)
> client.start()[/color]

[Robert Wierschke]

Re: client server question

John schrieb:[color=blue]
> I have a simple script that runs a server where one client can connect.
> I would like to make it so that many clients can connect to one server
> on the same port. Where can I find how to do this?
>
> Thanks,
> --j
>[/color]

use sockets.

the socket accept mehtoh returns a new socket (so now you hava one
"server socket" and a connection between to "client sockets" one used by
the requesting client and one created at the server side (retrund from
accept) ). you should start a new thread/process with this new socket
to handle the client request and use the "old" server socket again with
the accept method to wait for the next client to connect.

[Irmen de Jong]

Re: client server question

Robert Wierschke wrote:[color=blue]
> John schrieb:
>[color=green]
>> I have a simple script that runs a server where one client can connect.
>> I would like to make it so that many clients can connect to one server
>> on the same port. Where can I find how to do this?
>>
>> Thanks,
>> --j
>>[/color]
>
> use sockets.[/color]

Or, if you have no interest at all in the gory details and problems
of socket programming, have a look at Pyro (http://pyro.sourceforge.net).
Pyro lets you invoke remote python objects as if they were just regular
python objects.

--Irmen