Hello everybody,
I've been writing a program using Rendezvous and I'm having issues
with the service disappearing from the list. After many hours trying
to understand the problem, I gave up and I decided to go back to
square one: attempt to merge Picture Sharing and Picture Sharing
Browser in one single application. The idea is to offer an app which
publishes and subscribes, as opposed to having two different apps.
To my surprise, I'm experiencing exactly the same buggy behavior with
Picture Sharing/Picture Browser:
- In Picture Sharing Browser, the method -
(void)netServiceDidResolveAddress:(NSNetService *)sender contains the
following snippet:
// Cancel the resolve now that we have an IPv4 address.
[sender stop];
[sender release];
This piece of code makes the service disappear instantly. I commented
it out, which helped a bit.
- I changed netServiceBrowser:didFindService:moreComing: to the
following:
if (![[aNetService name] isEqualToString: [serviceNameField
stringValue]]) {
[services addObject:aNetService];
if(!moreComing) {
[pictureServiceList reloadData];
}
}
This avoids having your own service being listed in the services list.
After these corrections, I'm still having problems. These are:
- Issue #1: launch the app on two Macs, Mac #1 and Mac #2, and start
the service on both of them. The first service published (either on
Mac #1 or Mac #2) will not be able to browse the other one, even
though it's displayed on the table view. The second service is fine
and will display the other's picture. In other words, the very first
Mac that starts the service is doomed and won't be able to subscribe
to other services, even though they're listed on the table view.
- Issue #2: service #2, which displays the picture from service #1
will also break. To do that, go to Mac with service #2 and deselect
Mac #1 from the list. You'll see that it takes two clicks to get the
picture back. The first click doesn't go through. This leads to issue
#3...
- Issue #3: after the picture has been displayed on Mac #2, watch Mac
#1: the list doesn't show Mac#2 anymore.
I don't know what else to try, even after reading the docs. I was
hoping that I could use the merged app as a foundation from where I
could rebuild my app, but it's ill-behaved as well, so I', stuck
either way. I have the project (XCode) ready, in case someone wants to
start from there. Please contact me off-list and I'll send it to you.
Thanks in advance.
-- Tito
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