I see. That makes more sense--that it would be source-code compatible,
similar to WINE. That would relieve the effort of implementation quite a
bit.
While it may be a while before I get around to writing serious
documentation, I can at least go ahead and put some effort into squeezing
this into the existing socket sample. That should help get you up and
running.
-------------------------------
Hank Schultz
Cedrus Corporation
http://www.cedrus.com /
On Dec 18, 2006, at 7:01 PM, Ishan Arora wrote:
William,
What I insisted in last post was " Avahi also implements binary
compatibility libraries that emulate Bonjour and Howl". I guess I should have
used a different font :)
Since Avahi sounds more native and also emulates Bonjour in different
binaries, you wont have to modify your code (much). Moreover it comes
installed with most linux; we don't have much reason to give a Linux user
the trouble of installing Bonjour
On 12/19/06, William H. Schultz <[EMAIL PROTECTED] > wrote:
>
> It isn't visible straight from wxCode because I'm using wxCode's
> subversion repository instead of the CVS repository. This allowed me to
> point to it as an external source within our own internal project's svn
> repo. I also haven't packaged up a release, as I have no documentation or
> anything to help people build a project.
> About Avahi, if that's what is commonly shipping on Linux systems, then
> that would probably be the better route to take on those platforms. As
> currently implemented, wxDNSSD relies on Apple's implementation. I imagine
> Avahi wouldn't be particularly difficult to implement into my existing
> framework. I suspect the structure will likely be very similar (if not
> identical), but a lot of the code I've written probably won't apply. I have
> a suspicion it would wind up being a parallel implementation, like much of
> wxWidgets' cross-platform support.
>
> It may not be a bad idea to see if my implementation works with Apple's
> Bonjour on Linux. If it does, you could still do an Avahi implementation,
> but this would make it much easier to ensure that software written against
> wxDNSSD will work the same regardless of the backend. (just an idea)
>
>
> Anyway, I committed a change to servicediscoverytaskbase.h a few minutes
> ago, so there should be a little more information there on what you need to
> know to get going. It's getting late, so I'm headed home for the evening.
>
>
> We should probably continue this discussion on the wxCode mailing
> list. https://lists.sourceforge.net/lists/listinfo/wxcode-users I
> figured I would mention this before starting to CC the list (in case you
> have privacy concerns about anything you've already mentioned).
>
>
> -------------------------------
> Hank Schultz
> Cedrus Corporation
> http://www.cedrus.com /
>
>
> On Dec 18, 2006, at 5:54 PM, Ishan Arora wrote:
>
> William,
> Why is this project not accessible straight from wxCode? It would be
> more visible to the interested that way. My purpose is to create an open
> source network messenger. I am thinking of using Bonjour for the messenger
> to know the presence of other instances of the messenger on the network. Is
> there a better way you wish to recommend?
>
>
> I just came across this on wikipedia.org
>
> Avahi <http://en.wikipedia.org/wiki/Avahi_%28software%29> is a Zeroconf
> implementation for Linux <http://en.wikipedia.org/wiki/Linux> and
BSDs<http://en.wikipedia.org/wiki/Berkeley_Software_Distribution>.
> It implements IPv4LL, mDNS and DNS-SD. It is part of every major and many
> minor Linux distributions, and is installed by default on e.g.
Ubuntu<http://en.wikipedia.org/wiki/Ubuntu_%28Linux_distribution%29>version
> 6.10. If run in conjunction with
nss-mdns<http://0pointer.de/lennart/projects/nss-mdns/>it also offers host name
resolution.
>
> Avahi also implements binary compatibility libraries that emulate
> Bonjour and Howl, so software made to use those implementations can also
> utilize Avahi through the emulation interfaces.
>
>
> On 12/19/06, William H. Schultz < [EMAIL PROTECTED]> wrote:
> >
> > Thanks! It was also just the thing I needed. Of course, since no one
> > had published a good implementation, I did the best I could and put it out
> > there for everyone else. The key things missing are documentation and
> > support for text records. I'm working right now on adding a short blurb to
> > the servicediscoverytaskbase.h header file to give a quick overview of
> > how stuff works. I hope to have this committed within the next half hour.
> >
> > Hank Schultz
> >
> > <cedrus_logo_w140.gif>
> >
> > http://www.cedrus.com/
> >
> >
> > On Dec 18, 2006, at 5:34 PM, Ishan Arora wrote:
> >
> > William,
> > I guess I am the first one to be interested because the project is
> > relatively new and alpha version :)
> > Anyways I am finding Bonjour just the right thing for my project, so I
> > owe you a big "Thank You!!!" for helping me use it in wxWidgets. I'll try to
> > contribute to your side project ;)
> > Thank you
> >
> >
> > On 12/19/06, William H. Schultz < [EMAIL PROTECTED]> wrote:
> > >
> > > It has not been tested. There is a mechanism implemented to work
> > > based on the select() type of receiving events, which should theoretically
> > > be compatible with Linux. I tried to use this but had issues. I don't
> > > recall if I tried it on both OS X and Windows, but I think I may have.
This
> > > would rely on idle events. I also tried a threaded implementation,
allowing
> > > the bonjour calls to block. I don't recall precisely why I'm not using
this
> > > method myself.
> > > There are two methods implemented that could potentially work on
> > > Linux. Unfortunately, I know I had some kind of issues with both of these
> > > methods on either Windows or Mac OS X, so you may have your work cut out
for
> > > you to get it running on Linux. There is the slim possibility that it
will
> > > work pretty easily for you--that is, the methods are implemented--but I
> > > wouldn't count on it.
> > >
> > > In the end, I had a hard time getting everything to work right on
> > > Windows, so it could just be that I didn't devote enough effort into
> > > tweaking things for the more globally available methods.
> > >
> > > Everything you need to make this work should be in
> > > servicediscoverytaskbase.h and .cpp. This is where the bonjour
> > > tasks get set up. Since they all work mostly the same way, all of the
code
> > > is in here. One other place that may need modification is
> > > wxServiceDiscoveryResult::SetNetworkInterface(), which takes an integer
> > > index for the network interface and retrieves the name. On Mac OS X, this
> > > is en0, en1, fw0, etc... If the Mac OS X code for this doesn't work under
> > > Linux, it's just a matter of finding the line or two of code that takes
this
> > > index and turns it into a name.
> > >
> > > If you're willing to look over Apple's DNS SD documentation, then
> > > the functionality of the code should be relatively clear.
> > >
> > > I have a vague recollection that the threaded implementation was a
> > > lot more reliable than the idle-event-initiated-select() implementation
> > > (though I think I had some issues with starting and stopping tasks). You
> > > are probably better off starting down this route.
> > >
> > >
> > > I'm planning on rewriting the socket sample to use this, but it may
> > > be a bit before I get around to it.
> > >
> > >
> > > Oh, and in case you didn't already know, Bonjour doesn't do much of
> > > anything for actual network communication. You're on your own to set up a
> > > server and or client. Bonjour just tells you what claims to be available
> > > (dns name and port... you have to get the IP yourself, but that should be
> > > implemented in my code in wxServiceDiscoveryResult::SetTarget).
> > >
> > > There are a lot of calls to wxLogDebug() to keep you informed as to
> > > what is going on.
> > >
> > > You're the first person to contact me to say, "hey, I'm
> > > interested!" Sorry about the disarray. Our potential use for this is way
> > > out in the future, so it's a low priority side project, relative to tech
> > > support and fixing bugs in shipping products. ;)
> > >
> > > Hank Schultz
> > >
> > > <cedrus_logo_w140.gif>
> > >
> > > http://www.cedrus.com/
> > >
> > >
> > > On Dec 18, 2006, at 4:50 PM, Ishan Arora wrote:
> > >
> > > William,
> > > Thank you for your response. I am really thankful. Does wxDNSSD also
> > > work on linux, even if not tested?
> > >
> > > On 12/19/06, William H. Schultz < [EMAIL PROTECTED]> wrote:
> > > >
> > > > Ishan,
> > > > Yes, I have. So far, it seems to be working pretty well for me
> > > > internally. I haven't yet inflicted it on anyone else in my company,
and
> > > > especially not any users yet. You can get the source code here:
> > > >
> > > >
https://svn.sourceforge.net/svnroot/wxcode/trunk/wxCode/components/servicediscovery/
> > > > (works in a web browser or subversion client)
> > > >
> > > > I don't have anything to help build it yet. I'm currently
> > > > including the source files as if they were part of my own project. In
> > > > include/wx/servicediscoverydef.h, this code is configured to only build
in
> > > > debug mode, so you will likely want to modify this file.
> > > >
> > > > There is one Bonjour feature that is missing, and that's the text
> > > > records. At the moment, I have no use for it, so I haven't implemented
it.
> > > > Everything else is working fine for me on Windows and Mac OS X.
> > > >
> > > > I'm sorry that I haven't yet put together a sample to show off how
> > > > to use this functionality, but it's relatively simple. There are four
> > > > primary data types: browser, resolver, service, and result. If you
have
> > > > something to announce, you create a service and then start it. If you
want
> > > > to find something, you create a service but *don't* start it. You
provide
> > > > this service to the browser. The browser returns results via events.
These
> > > > results don't have full IP information, so you need to resolve your
> > > > results. The same result objects are used for both, and an object
array has
> > > > been defined in servicediscoveryresult.h to make it easier to keep
> > > > up with the results.
> > > >
> > > > An important detail to remember is that all bonjour tasks must be
> > > > started and stopped for anything to happen (browser, resolver, and
service
> > > > are all tasks). If you don't start your service, it won't be visible
(this
> > > > is what you want if you are looking for results but not if you have a
> > > > service to offer). If you don't start the browser, you will never get
any
> > > > results. The browser should stay active until you no longer need
results.
> > > > The resolver can probably be deactivated after you get your IP
information.
> > > >
> > > > While bonjour supports IPv6, wxWidgets doesn't, so everything is
> > > > done with IPv4.
> > > >
> > > >
> > > > I hope this is enough to get you started!
> > > >
> > > >
> > > > Hank Schultz
> > > >
> > > > <cedrus_logo_w140.gif>
> > > >
> > > > http://www.cedrus.com/
> > > >
> > > >
> > > > On Dec 18, 2006, at 3:37 PM, Ishan Arora wrote:
> > > >
> > > > hi
> > > > you seem to have created a wrapper class for Apple's Bonjour. it
> > > > seems to be very helpful from the description, but i am unable to
access it.
> > > > can you please check it. if it takes time to put them for download then
> > > > please email me the files.
> > > > thank you
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>
>
