Thanks for the tips. I will try to rewrite my class as region module. While this requires more work, it looks like a good long-term time investment. The problem with libopenmetaverse is that I am not planning to use UDP for my work. But it certainly can be a good reference for experiences code readers :-). It's just that I was missing some kind of overview (even just for a sample of messages) when starting and so created one myself.
Sergiy On Sat, Apr 20, 2013 at 9:55 PM, Dahlia Trimble <[email protected]>wrote: > Actually the 2nd link is for libopenmetaverse, the library which > implements the Second Life protocol. It's used in OpenSimulator for > generating the UDP packets and other messages which allow communications > with the various viewers. The wiki often has information which cannot be > found in the Second Life wiki, and the code is quite well structured and > complete and contains a good understanding of the protocol. > > Good luck with your protocol. I've designed a couple alternative protocols > and I found it to be quite challenging; there are many "gotchas" lurking > around. I've also implemented alternative protocols both as IClientAPI > modules and as region modules, and I found region modules to be a better > place for experimenting as the IClientApi interface is constantly changing > and it's difficult to keep private modules in sync with core. Region module > interfaces are much more simple and stable, and you really only need to ask > for events that you care about thru EventManager. If you want to > instantiate avatars, the NPC facilities can be invoked from region modules > as well. > > > On Sat, Apr 20, 2013 at 4:08 AM, Sergiy Byelozyorov <[email protected]>wrote: > >> Thank you for the links. I've seen the first one - it did gave me >> sufficient introduction, but it is not detailed enough. Many messages are >> only described by their structure, but not the meaning of each field, e.g. >> this >> one <http://wiki.secondlife.com/wiki/ParcelAccessListUpdate> (what flags >> can be set?) or this one<http://wiki.secondlife.com/wiki/AgentHeightWidth> >> (what's >> agent's client and width, gen counter?). This information can be found in >> the code and I have compiled a short description for a few messages: >> https://docs.google.com/spreadsheet/ccc?key=0AtS8km6a08YmdGZUS0FINkhibGZ1U2RVZnJSSXMzZ1E&usp=sharing >> >> The second one seems like a guide for developing scripts in-world, while >> I am currently looking into writing an alternative protocol for >> client-server communication. I have some plans to work on scripting APIs >> too, so it will be useful for me at some point in the future. >> >> >> Sergiy >> >> >> On Sat, Apr 20, 2013 at 8:11 AM, Dahlia Trimble >> <[email protected]>wrote: >> >>> If you're interested in LL protocol, >>> http://wiki.secondlife.com/wiki/Protocol might be a good place to >>> start. There's also http://lib.openmetaverse.org/wiki/Developer_Portalwhich >>> contains a lot of useful information. >>> >>> >>> On Fri, Apr 19, 2013 at 2:58 PM, Sergiy Byelozyorov >>> <[email protected]>wrote: >>> >>>> I can only view source, but can't edit the page. Perhaps you can create >>>> a new page "Linden Lab viewer protocol", grant me the rights to edit it and >>>> link it from the Client-Server protocol section. My username in the wiki is >>>> Rryk. >>>> >>>> >>>> Sergiy >>>> >>>> >>>> On Fri, Apr 19, 2013 at 9:26 PM, Justin Clark-Casey < >>>> [email protected]> wrote: >>>> >>>>> A great place to do this would be on new wiki page(s) linked from [1]. >>>>> Please feel free just to create a wiki account and start editing! I >>>>> haven't yet written up any general information the LL viewer-server >>>>> protocol and it would be great to have some. >>>>> >>>>> Another place for protocol information might be the libomv wiki [2], >>>>> though on a (very) casual glance I don't see any protocol-level doc apart >>>>> from the auto-extracted UDP message templates. >>>>> >>>>> The other sources of protocol information would be the LL wiki. >>>>> >>>>> [1] >>>>> http://opensimulator.org/wiki/**Communication_Protocols<http://opensimulator.org/wiki/Communication_Protocols> >>>>> [2] >>>>> http://lib.openmetaverse.org/**wiki/Developer_Portal<http://lib.openmetaverse.org/wiki/Developer_Portal> >>>>> >>>>> >>>>> On 19/04/13 20:10, Sergiy Byelozyorov wrote: >>>>> >>>>>> Thank you. This mailing list is in principle some kind of >>>>>> documentation. :-) >>>>>> >>>>>> Btw, I have done some study of the LL protocol and wrote a small >>>>>> summary for a few messages (that were logged by the >>>>>> server while a client has performed a few simple actions such as >>>>>> walking and flying). I haven't found any documentation >>>>>> on the protocol other than the one in the code, which is where I have >>>>>> got the information from. Perhaps someone can use >>>>>> my research - where can I post my study? Would be also great if I >>>>>> could update it as I will continue to learn more about >>>>>> the protocol with time. >>>>>> >>>>>> >>>>>> Sergiy >>>>>> >>>>>> >>>>>> On Tue, Apr 16, 2013 at 11:06 PM, Justin Clark-Casey < >>>>>> [email protected] >>>>>> <mailto:jjustincc@googlemail.**com<[email protected]>>> >>>>>> wrote: >>>>>> >>>>>> This is very old code, some of which was originally present for >>>>>> load balancing experiments which have long been >>>>>> defunct and the original coders unavailable. Its purpose was >>>>>> also completely undocumented. Therefore, I have >>>>>> removed NetworkStop(). >>>>>> >>>>>> As for AddScene, you can assume it will only be called once. >>>>>> There is a mechanism in OpenSimBase which looks like >>>>>> it was intended as a bypass (presumably so that AddScene() could >>>>>> be called multiple times on a single >>>>>> INetworkClientServer). But I believe this was again present for >>>>>> the above load balancing experiments and is >>>>>> effectively defunct. >>>>>> >>>>>> I'm afraid no general documentation really exists for the client >>>>>> stack interfaces and mechanisms. The best we can >>>>>> do is try and fill in the blanks on request. >>>>>> >>>>>> >>>>>> On 15/04/13 15:27, Sergiy Byelozyorov wrote: >>>>>> >>>>>> Also what's the difference between Stop and NetworkStop? >>>>>> >>>>>> >>>>>> Sergiy >>>>>> >>>>>> >>>>>> On Mon, Apr 15, 2013 at 4:21 PM, Sergiy Byelozyorov < >>>>>> [email protected] <mailto:[email protected]> >>>>>> <mailto:[email protected] <mailto:[email protected]>>> >>>>>> wrote: >>>>>> >>>>>> Hi, >>>>>> >>>>>> I am implementing a new client network server class. Is >>>>>> there any documentation on IClientNetworkServer? In >>>>>> particular I am interested whether AddScene may be >>>>>> called several times or not. >>>>>> >>>>>> Sergiy >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> ______________________________**___________________ >>>>>> Opensim-dev mailing list >>>>>> [email protected] <mailto:Opensim-dev@lists.** >>>>>> berlios.de <[email protected]>> >>>>>> >>>>>> https://lists.berlios.de/__**mailman/listinfo/opensim-dev<https://lists.berlios.de/__mailman/listinfo/opensim-dev>< >>>>>> https://lists.berlios.de/**mailman/listinfo/opensim-dev<https://lists.berlios.de/mailman/listinfo/opensim-dev> >>>>>> > >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Justin Clark-Casey (justincc) >>>>>> OSVW Consulting >>>>>> http://justincc.org >>>>>> http://twitter.com/justincc >>>>>> ______________________________**___________________ >>>>>> Opensim-dev mailing list >>>>>> [email protected] <mailto:Opensim-dev@lists.** >>>>>> berlios.de <[email protected]>> >>>>>> >>>>>> https://lists.berlios.de/__**mailman/listinfo/opensim-dev<https://lists.berlios.de/__mailman/listinfo/opensim-dev>< >>>>>> https://lists.berlios.de/**mailman/listinfo/opensim-dev<https://lists.berlios.de/mailman/listinfo/opensim-dev> >>>>>> > >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> ______________________________**_________________ >>>>>> Opensim-dev mailing list >>>>>> [email protected] >>>>>> https://lists.berlios.de/**mailman/listinfo/opensim-dev<https://lists.berlios.de/mailman/listinfo/opensim-dev> >>>>>> >>>>>> >>>>> >>>>> -- >>>>> Justin Clark-Casey (justincc) >>>>> OSVW Consulting >>>>> http://justincc.org >>>>> http://twitter.com/justincc >>>>> ______________________________**_________________ >>>>> Opensim-dev mailing list >>>>> [email protected] >>>>> https://lists.berlios.de/**mailman/listinfo/opensim-dev<https://lists.berlios.de/mailman/listinfo/opensim-dev> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Opensim-dev mailing list >>>> [email protected] >>>> https://lists.berlios.de/mailman/listinfo/opensim-dev >>>> >>> >>> >>> _______________________________________________ >>> Opensim-dev mailing list >>> [email protected] >>> https://lists.berlios.de/mailman/listinfo/opensim-dev >>> >> >> >> _______________________________________________ >> Opensim-dev mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/opensim-dev >> > > > _______________________________________________ > Opensim-dev mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/opensim-dev >
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