'\"
'\" Generated from file 'udpcluster\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2016-2018 Sean Woods <yoda@etoyoc\&.com>
'\"
.TH "udpcluster" n 0\&.3\&.4 tcllib "Lightweight UDP based tool for cluster node discovery"
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.SH NAME
udpcluster \- UDP Peer-to-Peer cluster
.SH SYNOPSIS
package require \fBTcl 8\&.5 9\fR
.sp
package require \fBudpcluster ?0\&.3\&.4?\fR
.sp
package require \fBip\fR
.sp
package require \fBnettool\fR
.sp
package require \fBcomm\fR
.sp
package require \fBinterp\fR
.sp
package require \fBdicttool\fR
.sp
package require \fBcron\fR
.sp
.BE
.SH 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\&.
.PP
Using udpcluster\&.
.PP
For every service you wish to publish invoke:
.PP
.CS


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

.CE
.PP
To query what services are available on the local network:
.CS


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

.CE
.PP
To unpublish a service:
.CS


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

.CE
.PP
Results will
Historical Notes:
.PP
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\&.
.SH "BUGS, IDEAS, FEEDBACK"
This document, and the package it describes, will undoubtedly contain
bugs and other problems\&.
Please report such in the category \fInameserv\fR of the
\fITcllib Trackers\fR [http://core\&.tcl\&.tk/tcllib/reportlist]\&.
Please also report any ideas for enhancements you may have for either
package and/or documentation\&.
.PP
When proposing code changes, please provide \fIunified diffs\fR,
i\&.e the output of \fBdiff -u\fR\&.
.PP
Note further that \fIattachments\fR are strongly preferred over
inlined patches\&. Attachments can be made by going to the \fBEdit\fR
form of the ticket immediately after its creation, and then using the
left-most button in the secondary navigation bar\&.
.SH KEYWORDS
name service, server
.SH CATEGORY
Networking
.SH COPYRIGHT
.nf
Copyright (c) 2016-2018 Sean Woods <yoda@etoyoc\&.com>

.fi
