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Stop it being possible for an agent to teleport back to its source region before the source region has finished cleaning up old agent data and structures.

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If this is allowed, then the client usually gets forcibly logged out and data structures might be put into bad states.
To prevent this, the binary state machine of EMT.m_agentsInTransit is replaced with a 4 state machine (Preparing, Transferring, ReceivedAtDestination, CleaningUp).
This is necessary because the source region needs to know when the destination region has received the user but a teleport back cannot happen until the source region has cleaned up.
Tested on standalone, grid and with v1 and v3 clients.
This commit is contained in:
Justin Clark-Casey (justincc)
2012-05-25 02:02:53 +01:00
parent 7cceab1295
commit 40c78b0624
3 changed files with 175 additions and 34 deletions
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2
OpenSim/Region/Framework/Interfaces/IEntityTransferModule.cs
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@@ -77,8 +77,8 @@ namespace OpenSim.Region.Framework.Interfaces
/// <summary>
/// Show whether the given agent is being teleported.
/// </summary>
/// <returns>true if the agent is in the process of being teleported, false otherwise.</returns>
/// <param name='id'>The agent ID</para></param>
/// <returns>true if the agent is in the process of being teleported, false otherwise.</returns>
bool IsInTransit(UUID id);
bool Cross(ScenePresence agent, bool isFlying);