How to write a non blocking SimpleHTTPRequestHandler ?

[Irmen de Jong]

On 2-2-2015 10:54, yacinechaouche at yahoo.com wrote:
> I wrote a little script that acts like a proxy, you just give it a URL and it will
> fetch the content and display it back to you.
> 
> For some reason, this proxy blocks sometimes and refuses to serve any new queries.
> The script still runs, but it seems like it's stuck somewhere.
> 
> When I strace it to see what it's doing, I find it hanging on this instruction : 
> root at backup[10.10.10.21] ~/SCRIPTS/INFOMANIAK # strace -fp 6918 Process 6918 attached
> - interrupt to quit recvfrom(6, ^CProcess 6918 detached root at backup[10.10.10.21]
> ~/SCRIPTS/INFOMANIAK #
> 
> I read in the SimpleHTTPServer source code that one can inherit from the
> SocketServer.TrheadingMixIn mixin to enable a threaded server to handle multiple
> requests at a time instead of just one (thinking maybe that's what was blocking it).
> However, it seems like it has nothing to do with my problem. What I need to do is not
> only handle multiple requests at a time, but more importantly to make the request
> handler non-blocking.

Why? If you have multiple threads serving some requests at the same time, doesn't that
already achieve your goal? In other words, have you tried what you describe above?
(make sure you close the connection correctly or you'll be hogging a thread which may
eventually make the server non responsive)

Irmen