Journeta
About
Journeta is a dirt simple peer discovery and message passing library for
processes on the same LAN, requiring no advanced networking knowledge to
use.
Only core Ruby libraries are required, making the library fairly light. As
all data is sent across the wire in YAML form, any arbitrary Ruby object
can be sent to peers, provided they..
* Are running a compatible Journeta version.
* Have access to the same class definitions if you are sending your own custom objects.
* Do not have a firewall preventing network I/O.
Journeta uses Ruby threading to manage the asynchronous nature of
peer-to-peer I/O. Data you send from your application thread will be queued
and sent asynrchonously as soon as possible. For insight into events
internal to the library, start ruby with the `—debug` options.
Use
journeta_instant_messenger.rb
A completely distributed, zero-configuration-required chat room script.
Fire up several instances in separate terminals. Multiple instances on the same machine is ok.
Everything you type will automatically be sent to all other instances on the LAN!
Use `ruby --debug journeta_instant_messenger.rb` for detailed internal event details.
journeta_network_status.rb
Monitors the presence of all peers on the network.
journeta_queue_server.rb
journeta_queue_client.rb
A simple queue managed by a server. Each client produces jobs to be queued, and processes jobs
sent from the server(s). All nodes automatically find eachother. Try running multiples clients,
and then multiple servers. Notice that when you have N servers, each job gets run N times,
and not necessarilly by the same client!
Author
Preston Lee
Links
How Journeta discovers peers using UDP multicasting.. onestepback.org/index.cgi/Tech/Ruby/MulticastingInRuby.red
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