How to read and write the same socket in different threads?

[Leo Jay]

On Sat, Aug 23, 2008 at 1:58 AM, Jean-Paul Calderone <exarkun at divmod.com> wrote:
> On Sat, 23 Aug 2008 01:47:23 +0800, Leo Jay <python.leojay at gmail.com> wrote:
>>
>> I'd like to read and write the same socket in different threads.
>> one thread is only used to read from the socket, and the other is only
>> used to write to the socket.
>> But I always get a 10022 'Invalid argument' exception. Anyone knows why?
>>
>> I'm using windows xp.
>>
>> my source code is here:
>> http://pastebin.com/m23e633a2
>>
>
> You're connecting and accepting with the same socket.  That's not a very
> good thing to do.  You're not even reading and writing on the same socket,
> since you're writing to the socket which you get from accept (if the code
> could get that far).
>

not exactly. the socket connecting to port 1 is listening to port 2.
port 1 and port 2 are not the same.

> What are you trying to do?  Why are you connecting and accepting?  Why do
> you need two threads?
>

I'm migrating a java module to python. In the java code, after
creating a socket,
the code gets an InputStream and an OutputStream from that socket,
sends and receives data in different threads.
So I just want to do the same thing. (at least do the same thing
currently, I don't want to change all related projects at the same
time.)

> Have you seen Twisted?  http://twistedmatrix.com/
>

not yet, but it seems that it's quite a complicated module, isn't it?
is it possible to get the work done without adopting such a monster? :)

thanks.

-- 
Best Regards,
Leo Jay