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Re: How to write a non blocking SimpleHTTPRequestHandler ?

From Marko Rauhamaa <marko@pacujo.net>
Newsgroups comp.lang.python
Subject Re: How to write a non blocking SimpleHTTPRequestHandler ?
Date 2015-02-03 15:45 +0200
Organization A noiseless patient Spider
Message-ID <87iofjglbg.fsf@elektro.pacujo.net> (permalink)
References (4 earlier) <mailman.18420.1422960897.18130.python-list@python.org> <b6cb0fcb-9934-41b6-a8f6-902d26f2588c@googlegroups.com> <mailman.18421.1422961678.18130.python-list@python.org> <87r3u7grd3.fsf@elektro.pacujo.net> <e6d081df-1db0-41a3-905c-e3c2845d5dda@googlegroups.com>

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Yassine Chaouche <yacinechaouche@yahoo.com>:

> On Tuesday, February 3, 2015 at 12:35:32 PM UTC+1, Marko Rauhamaa wrote:
>> So far I've been happy with select.epoll(), socket.socket() and ten
>> fingers.
>
> [...]
>
> But your comment is interesting because, as I understand it, a
> non-blocking web server is simply a matter of setting timeouts on
> sockets, catch the exceptions and move on.

Now I think you might have some misconceptions about nonblocking
networking I/O. Nonblocking I/O is done using asynchronous, or
event-driven, programming. Your code reacts to external stimuli, never
blocking, mostly just sleeping. The reactions are defined in callback
routings, aka listeners, aka event handlers.

> I don't know why wouldn't that be possible with python stdlib ?

It is possible using the low-level facilities. However, the traditional
high-level facilities are built on multithreading, which (as a rule) is
based on blocking I/O.


Marko

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Thread

Re: How to write a non blocking SimpleHTTPRequestHandler ? Amirouche Boubekki <amirouche.boubekki@gmail.com> - 2015-02-02 10:07 +0000
  Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 01:08 -0800
    Re: How to write a non blocking SimpleHTTPRequestHandler ? Marko Rauhamaa <marko@pacujo.net> - 2015-02-03 11:27 +0200
      Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 02:47 -0800
        Re: How to write a non blocking SimpleHTTPRequestHandler ? Chris Angelico <rosuav@gmail.com> - 2015-02-03 21:54 +1100
          Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 03:04 -0800
            Re: How to write a non blocking SimpleHTTPRequestHandler ? Chris Angelico <rosuav@gmail.com> - 2015-02-03 22:07 +1100
              Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 03:23 -0800
              Re: How to write a non blocking SimpleHTTPRequestHandler ? Marko Rauhamaa <marko@pacujo.net> - 2015-02-03 13:35 +0200
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 04:56 -0800
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Marko Rauhamaa <marko@pacujo.net> - 2015-02-03 15:45 +0200
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Chris Angelico <rosuav@gmail.com> - 2015-02-04 01:03 +1100
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Marko Rauhamaa <marko@pacujo.net> - 2015-02-03 16:20 +0200
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-02-03 20:25 -0500
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Chris Angelico <rosuav@gmail.com> - 2015-02-04 00:21 +1100
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Amirouche Boubekki <amirouche.boubekki@gmail.com> - 2015-02-03 14:09 +0000
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-03 06:50 -0800
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Filadelfo Fiamma <philosganga@gmail.com> - 2015-02-03 16:03 +0100
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-02-03 16:39 +0000
                Re: How to write a non blocking SimpleHTTPRequestHandler ? Yassine Chaouche <yacinechaouche@yahoo.com> - 2015-02-08 06:13 -0800
            Re: How to write a non blocking SimpleHTTPRequestHandler ? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-02-03 12:10 +0000

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