Clean up of simulation version, the number that rules the compatibility of teleports:
- It's not configurable anymore, it's fixed in code. Each number means an increase in features of the teleport procedure
- Its definition moved to the global VersionInfo class
As of now it's still 0.3.
Conflicts:
OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
- It's not configurable anymore, it's fixed in code. Each number means an increase in features of the teleport procedure
- Its definition moved to the global VersionInfo class
As of now it's still 0.3.
This integrates the OpenSim refactoring to make physics, etc into modules.
AVN physics hasn't been moved to new location.
Does not compile yet.
Merge branch 'osmaster' into mbworknew1
I forgot that a null 'their version' would not be passed over the wire and ends up as an empty string instead (like older simulators).
So instead pass through the correct simulator protcol version instead (SIMULATOR/0.3) when querying from login or hg login.
Also removes a debug console write for agent limit accidentally left in for the same commit.
Relates to mantis 7276
Previously we used a heuristic of checking if the entry position is 0 to differentiate between Teleport and Cross, but that doesn't work anymore since we've started providing the precise entry position for cross, too. That's required in order to ensure that the user is allowed to enter the parcel that he's walking into.
This is for testing and debugging purposes to help determine whether a particular issue may be teleport related or not
"SIMULATION/0.2" (the newer teleport protocol) remains the default. If the source simulator only implements "SIMULATION/0.1" this will correctly allow fallback to the older protocol.
Specifying "SIMULATION/0.1" will force the older, less efficient protocol to always be used.
In this new protocol, and as committed before, the viewer is not sent EnableSimulator/EstablishChildCommunication for the destination. Instead, it is sent TeleportFinish directly. TeleportFinish, in turn, makes the viewer send a UserCircuitCode packet followed by CompleteMovementIntoRegion packet. These 2 packets tend to occur one after the other almost immediately to the point that when CMIR arrives the client is not even connected yet and that packet is ignored (there might have been some race conditions here before); then the viewer sends CMIR again within 5-8 secs. But the delay between them may be higher in busier regions, which may lead to race conditions.
This commit improves the process so there are are no race conditions at the destination. CompleteMovement (triggered by the viewer) waits until Update has been sent from the origin. Update, in turn, waits until there is a *root* scene presence -- so making sure CompleteMovement has run MakeRoot. In other words, there are two threadlets at the destination, one from the viewer and one from the origin region, waiting for each other to do the right thing. That makes it safe to close the agent at the origin upon return of the Update call without having to wait for callback, because we are absolutely sure that the viewer knows it is in th new region.
Note also that in the V1 protocol, the destination was getting UseCircuitCode from the viewer twice -- once on EstablishAgentCommunication and then again on TeleportFinish. The second UCC was being ignored, but it shows how we were not following the expected steps...
This is so that other callers (such as SceneCommunicationService.SendCloseChildAgentConnections() can perform all closes asynchronously without pointlessly firing another thread for local closes).
No functional change apart from elimination of unnecessary chaining of new threads.
