oracular (3) udpcluster.3tcl.gz

Provided by: tcllib_1.21+dfsg-1_all bug

NAME
       udpcluster - UDP Peer-to-Peer cluster


SYNOPSIS
       package require Tcl  8.5

       package require udpcluster  ?0.3.3?

       package require ip

       package require nettool

       package require comm

       package require interp

       package require dicttool

       package require cron

________________________________________________________________________________________________________________


DESCRIPTION
       This  package  is  a  lightweight alternative to Zeroconf. It utilizes UDP packets to populate a table of
       services provided by each node on a local network. Each participant broadcasts a key/value list in  plain
       UTF-8  which  lists  what  ports are open, and what protocols are expected on those ports. Developers are
       free to add any additional key/value pairs beyond those.

       Using udpcluster.

       For every service you wish to publish invoke:

              cluster::publish echo@[cluster::macid] {port 10000 protocol echo}

       To query what services are available on the local network:

              set results [cluster::search PATTERN]
              # And inside that result...
              echo@LOCALMACID {
                 port 10000
                 protocol echo
              }

       To unpublish a service:

              cluster::unpublish echo@[cluster::macid]

       Results will Historical Notes:

       This tool was originally known as nns::cluster, but as development  progressed,  it  was  clear  that  it
       wasn't interacting with any of the other facilities in NNS.


BUGS, IDEAS, FEEDBACK
       This  document,  and  the package it describes, will undoubtedly contain bugs and other problems.  Please
       report such in the category  nameserv  of  the  Tcllib  Trackers  [http://core.tcl.tk/tcllib/reportlist].
       Please also report any ideas for enhancements you may have for either package and/or documentation.

       When proposing code changes, please provide unified diffs, i.e the output of diff -u.

       Note  further  that  attachments  are strongly preferred over inlined patches. Attachments can be made by
       going to the Edit form of the ticket immediately after its creation, and then using the left-most  button
       in the secondary navigation bar.


KEYWORDS
       name service, server


CATEGORY
       Networking


       Copyright (c) 2016-2018 Sean Woods <yoda@etoyoc.com>