Aims to address http://opensimulator.org/mantis/view.php?id=6355
As part of this work, an incomplete IXGroupsData was added which currently only allows store/fetch/delete of group records
(i.e. no membership data etc)
This is subject to change and currently only an in-memory storage implementation exists for regression test purposes.
This retrieves and caches information from the PresenceService to only send messages to online users.
This is reported to much improve performance for large groups where most users are offline.
Cache is 20 seconds to balance requests against users not receiving messages until cache updates.
This is an alternative to an approach where login/logout notification is sent directly from simulator to groups service.
However, I'm not convinced that this PresenceService approach is actually better. Needs more thought.
The encodings are thread-safe and already used in such a manner in other places.
This isn't done where Byte Order Mark output is suppressed, since Encoding.UTF8 is constructed to output the BOM.
This involves a large amount of change in test scene setup code to allow test scenes to share shared modules
SetupScene is now an instance method that requires an instantiation of SceneHelpers, though other SceneHelpers methods are still static
May split these out into separate classes in the future.
too slow they would circumvent the cache (piling up on the network service
and making the problem even worse). This condition happens frequently
during permission checks.
This is handled by treating UUID.Zero as a special case.
Currently, asking for the "none" group returns nothing because XMLRPC groups, at least, is not properly handling this case.
It may be better in the future to have GroupsModule return an appropriate GroupsData structure instead or require the underlying services to behave appropriately.
This is a further component of http://opensimulator.org/mantis/view.php?id=5588
There were two problems here:
1) On object group update, we looked for the group is the IClientAPI group cache rather than in the groups service. This fails to groups created newly in that session
2) On object group update, we weren't setting the HasGroupChanged flag. This meant that the change was not persisted unless some other action set this flag.
This commit fixes these issues and hopefully addresses http://opensimulator.org/mantis/view.php?id=5588
This commit also moves HandleObjectGroupUpdate() to the GroupsModule from the Scene.PacketHandlers.cs file
this is a prerequisite to fixing llDialog issues for the latest Linden viewers, since they are now making use of a new OwnerData field in the ScriptDialog message
This matches the behaviour of the same method for Flotsam Groups. This is the behaviour assumed by existing code.
Method doc also added to IGroupsServicesConnector to the make the contract clear.
While implementing this, a bug was fixed in scene setup helpers where module RegionLoaded() was called immediately after AddRegion() instead of waiting for all AddRegions() to complete.
Also, XmlRpcGroupsModule non-message functionality will now work without a message transfer module (as indicated in the comments but with a contradictory implementation)
