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UDP library (Read 7417 times)
douglas edric stanley
UDP library
Mar 16th, 2006, 12:01pm  
Stephane Cousot and I are finalizing a library for UDP communication. It should be available in the next few days. I wanted to sound out here to get some feedback in case anyone has any special desires/suggestions.

Why a UDP library?

Here at the Aix-en-Provence art school, we have been experimenting for quite some time with a low-cost method for communicating with robots, circuits, small electronics, etc. via UDP. Jean-Pierre Mandon (http://www.pictec.org/) built us an interresting system that he calls PicoIP. He and France Cadet have already used his system, for example, during a workshop in January (http://www.picoip.net/idre/), and several students are starting projects using his system. As Processing is our primary graphics tool, we needed a way to communicate between Processing <-> PicoIP.

Neither Carnivore, nor MaxLink were open enough for our needs (at least as far as we could tell), so Stephane built a multi-purpose UDP library for Processing (and Java, by the way). His library includes simple UDP communication, as well as multicast support. As PicoIP is a fairly obscure project, we also wanted to open up the library for anyone else needing UDP support in their Processing project.

We will be posting the library at http://hypermedia.loeil.org/processing/ in the next couple of days.
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jkriss
Re: UDP library
Reply #1 - Mar 16th, 2006, 2:38pm  
Excellent news!  Multicast, in particular, is an important part of the picture.

I've been thinking a lot about the relative openness of MaxLink recently, both in terms of source and platform.  Right now, it's using some utility classes from Max/MSP for networking, but I've been thinking about a more general implementation using OSC over UDP.

If there's interest, I'd be more than happy to make MaxLink an open source project, especially once I eliminate the dependency on Max libraries.

Thanks for your contribution!
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douglas edric stanley
Re: UDP library
Reply #2 - Mar 20th, 2006, 4:03pm  
Ok, so we've got the libraries online at http://hypermedia.loeil.org/processing/. If you have the time, please kick the tires for us.

We'll be getting some examples online at the end of the week when the Atelier Hypermedia is next in session.
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jkriss
Re: UDP library
Reply #3 - Mar 21st, 2006, 2:12am  
The download link seems to be broken at the moment. Should be http://hypermedia.loeil.org/processing/udp.zip, right?
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tigoe
Re: UDP library
Reply #4 - Apr 20th, 2006, 7:42pm  
For what it's worth, I ran the library on a Mac, powerbook G4, OSX 10.4.6, Processing 113, and when I tried to enable broadcast, the library stopped working.  No datagrams would go  out, and none would come in.  However, when I sent to xxx.xxx.xxx.255, I could broadcast just fine.

Also, it'd be good to put the .jar file in a "library" directory inside the udp directory, so the whole thing can drop right into the Processing Libraries folder and work.  I had to create a library folder and move the .jar to get Processing to recognize it.

Thanks for a very nice library!

tigoe
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Traumaproductions
Re: UDP library
Reply #5 - Dec 1st, 2008, 3:23pm  
The link is broken again! can somebody repair it?
or does anybody have the libary for my?
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sojamo
Re: UDP library
Reply #6 - Dec 2nd, 2008, 5:00am  
hi,
please use the link from the libraries page under data/protocols to find the current download location of the UDP library.
best,
andreas
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andreas schlegel / http://www.sojamo.de
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matteo sisti sette
Re: UDP library
Reply #7 - Jun 15th, 2009, 1:31pm  
The library doesn't work well for me.
I call the listen() method but I only receive the first packet.
After the first packet is received, the UDP object stops listening.

See the thread I posted at:
discourse/yabb2/num_1245097113.html

(can't post the complete link because of ridiculous supposedly-anti-spam restriction of this forum; it obviously begins with processing dot org slash)

Is this a known bug or am I missing something
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