The viewer requests for capabilities via the seed capability.
"EventQueueGet" is the capability for polling for events queues for
the client from the region. The viewer then periodically invokes that
capability essentially polling the server for messages. See
llviewerregion.cpp, lleventpoll.cpp. There are then routing code that
maps the events received to the registered http handlers that you see.
- Tess
Sent from my iPhone
On May 20, 2009, at 9:00 AM, Infinity Linden <[email protected]>
wrote:
lemme dig through my notes and see if i have more / better
documentation on using caps.
yes. if the viewer is still as i remember it, we have an event queue
for the region you're connected to and for each adjacent region for
object updates from child cameras. (but... it's been close to a year
since i touched the client code... though the llmessage code is
shared between viewer and server.)
On Wed, May 20, 2009 at 7:49 AM, Suzy Deffeyes <[email protected]>
wrote:
I'm attempting to understand how the event queue in the viewer
works, specifically, creating and registering new services. I'm
thankful for the documentation in llhttpnode.h, but I'm still
scratching my head a bit.
In LLHTTPRegistrar::buildAllServices(), I see all the message/* type
nodes getting registered, as well as the trusted-message one. I
*thought* all one had to do to get something registered was to have
something like this:
LLHTTPRegistration<LLMyNodeType> gHTTPServiceAlphaBeta("/alpha/beta");
So I expected (hoped?) to see the services defined in
llsdappservices.cpp in the call to buildAllServices....but i don't
see them in the list being registered. Is there something else
needed? Or some other mechanism being used? Are they added later?
Also, is there a separate event queue opened with each child region
that the viewer is connected to? Or is there only one with the
region the agent is in?
Thanks
Suzy
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