Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #96993

Re: Lightwight socket IO wrapper

From Marko Rauhamaa <marko@pacujo.net>
Newsgroups comp.lang.python
Subject Re: Lightwight socket IO wrapper
Date 2015-09-23 00:00 +0300
Organization A noiseless patient Spider
Message-ID <8737y6cgp6.fsf@elektro.pacujo.net> (permalink)
References <mtm18o$9fm$1@dont-email.me> <mailman.37.1442754893.21674.python-list@python.org> <mtnc9q$pqs$1@dont-email.me> <mailman.18.1442804862.28679.python-list@python.org> <mtsc60$41t$1@dont-email.me>

Show all headers | View raw

"James Harris" <james.harris.1@gmail.com>:

> I agree with what you say. A zero-length UDP datagram should be
> possible and not indicate end of input but is that guaranteed and
> portable?

The zero-length payload size shouldn't be an issue, but UDP doesn't make
any guarantees about delivering the message. Your UDP application must
be prepared for some, most or all of the messages disappearing without
any error indication.

In practice, you'd end up implementing your own TCP on top of UDP
(retries, timeouts, acknowledgements, sequence numbers etc).


Marko

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Lightwight socket IO wrapper "James Harris" <james.harris.1@gmail.com> - 2015-09-20 11:22 +0100
  Re: Lightwight socket IO wrapper Akira Li <4kir4.1i@gmail.com> - 2015-09-20 16:15 +0300
    Re: Lightwight socket IO wrapper "James Harris" <james.harris.1@gmail.com> - 2015-09-20 23:36 +0100
      Re: Lightwight socket IO wrapper Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-09-20 20:19 -0400
        Re: Lightwight socket IO wrapper Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-09-21 17:46 +1200
        Re: Lightwight socket IO wrapper Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-09-21 11:25 +0000
        Re: Lightwight socket IO wrapper "James Harris" <james.harris.1@gmail.com> - 2015-09-22 20:45 +0100
          Re: Lightwight socket IO wrapper Random832 <random832@fastmail.com> - 2015-09-22 19:52 -0400
            Re: Lightwight socket IO wrapper Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-09-23 12:47 +1200
      Re: Lightwight socket IO wrapper Chris Angelico <rosuav@gmail.com> - 2015-09-21 10:34 +1000
      Re: Lightwight socket IO wrapper Akira Li <4kir4.1i@gmail.com> - 2015-09-21 06:07 +0300
        Re: Lightwight socket IO wrapper "James Harris" <james.harris.1@gmail.com> - 2015-09-22 21:05 +0100
          Re: Lightwight socket IO wrapper Marko Rauhamaa <marko@pacujo.net> - 2015-09-23 00:00 +0300
            Re: Lightwight socket IO wrapper "James Harris" <james.harris.1@gmail.com> - 2015-09-22 22:28 +0100

csiph-web