How best to achieve asynchronous socket input and output?

[Albert Hofkamp]

On 23 Nov 2003 18:21:12 -0800, Kylotan <kylotan at hotmail.com> wrote:
> I'm writing a wxPython telnet-like application that needs to be able
> to send and receive data independently of each other. The asyncore
> library comes close to what I want, but still requires I have a
> blocked thread (the one that calls asyncore.loop() ).  It also seems a
> little unpredictable; one example of this is that when I based an
> example around the sample HTTP client (11.23.1 in the docs),
> handle_write never seemed to get called, and I had to call .send()
> directly, bypassing any buffering.
> 
> Is there a better way of achieving what I want? Or something I need to
> know about the asyncore library to get it to do this?

I usually jump immediately to select, which maps almost directly to select(2),
giving a lot of control, and lack of portability for non-unix systems.

In the context of GUI's, maybe you can get the eventloop of wxpython to
wait for file I/O on the sockets, some GUI libraries provide such a hook
(GUI handling in the end means waiting for data from the X11 server, ie
a select-like thing).
Otherwise you must poll, or use a seperate thread.
 


-- 
Albert
-- 
Unlike popular belief, the .doc format is not an open publically available format.