Logout
From OpenSimulator
(Difference between revisions)
(Created page with "=Introduction= This is the logout process as initiated by a user quitting the viewer. = Logout = ==Key== {| border = "1" ! key !! description |- | GU || griduser service |...") |
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= Logout = | = Logout = | ||
| + | |||
| + | ==Notes== | ||
| + | * Viewers will log out whether they receive logout confirmation from the simulator or not. On the Linden viewer 3.3.4, for example, quit will always happen after 6 seconds. | ||
| + | * Logging back in whilst logout processing is still occuring will cause login to be delayed but it should succeed. | ||
| + | |||
==Key== | ==Key== | ||
{| border = "1" | {| border = "1" | ||
| Line 12: | Line 17: | ||
| P || presence service | | P || presence service | ||
|- | |- | ||
| − | | | + | | R || region occuped by the user's avatar |
|- | |- | ||
| − | | | + | | RCh || neighbour of avatar region |
|- | |- | ||
| − | | | + | | RFr || region containing friend |
|- | |- | ||
| V || viewer | | V || viewer | ||
|} | |} | ||
| + | |||
| + | ===Communication=== | ||
| + | Communication occurs between: | ||
| + | |||
| + | * Viewer and region (V <-> R) | ||
| + | * Region and grid user service (R -> GU) | ||
| + | * Region and presence service (R -> P) | ||
| + | * Region and neighbours (R -> RCh) | ||
| + | * Neighbours and viewer (RCh -> V) | ||
| + | * Region and other regions containing user's online friends (R -> RFr) | ||
==Steps== | ==Steps== | ||
| Line 25: | Line 40: | ||
The steps involving listeners are not exhausive. Only the most significant operations are listed. | The steps involving listeners are not exhausive. Only the most significant operations are listed. | ||
| − | * V-> | + | * V->R, on user quit, viewer sends a '''LogoutRequest''' UDP packet to the region. |
| − | * | + | * R->V, simulator immediate replies with a '''LogoutReply''' UDP packet. |
| − | * | + | * R, begins to tear down structures specific to the LL connection |
| − | ** | + | * R, triggers '''IClientAPI.OnConnectionClosed''' event internally, causing listeners to |
| − | ** | + | ** R->GU, tell the grid user service that the user has logged out. |
| − | * | + | ** R->P, tell the presence service that the user has logged out. |
| − | ** | + | * R, Tell the scene to start cleaning up its data structures (this is the bulk of the cleanup work). |
| − | * | + | ** R->RCh, tell any neighbours to close their child agents for this viewer. |
| − | ** | + | *** RCh-V, these neighbours will in turn tell the viewer that the regions are closing (not actually necessary). |
| − | * | + | * R, triggers '''EventManager.OnClientClosed''' event internally, causing listeners to |
| − | * | + | ** R->P, asks the presence service for which of the user's friends are online. |
| − | * | + | ** R->RFr, tell regions containing online friends that the user has gone offline. |
| − | * | + | * R, triggers '''EventManager.OnRemovePresence''' event internally (this duplicates OnClientClosed and may be removed in the future). |
| + | * R, derezzes the avatar's attachments, hence shutting down and saving any attachment script state. | ||
| + | * R, tells other avatars still in the scene that the user has gone via the '''KillObject''' UDP packet. | ||
| + | * R, removes the scene presence and client structures and removes the avatar's physics object. | ||
Revision as of 14:22, 21 March 2013
Contents |
Introduction
This is the logout process as initiated by a user quitting the viewer.
Logout
Notes
- Viewers will log out whether they receive logout confirmation from the simulator or not. On the Linden viewer 3.3.4, for example, quit will always happen after 6 seconds.
- Logging back in whilst logout processing is still occuring will cause login to be delayed but it should succeed.
Key
| key | description |
|---|---|
| GU | griduser service |
| P | presence service |
| R | region occuped by the user's avatar |
| RCh | neighbour of avatar region |
| RFr | region containing friend |
| V | viewer |
Communication
Communication occurs between:
- Viewer and region (V <-> R)
- Region and grid user service (R -> GU)
- Region and presence service (R -> P)
- Region and neighbours (R -> RCh)
- Neighbours and viewer (RCh -> V)
- Region and other regions containing user's online friends (R -> RFr)
Steps
The steps involving listeners are not exhausive. Only the most significant operations are listed.
- V->R, on user quit, viewer sends a LogoutRequest UDP packet to the region.
- R->V, simulator immediate replies with a LogoutReply UDP packet.
- R, begins to tear down structures specific to the LL connection
- R, triggers IClientAPI.OnConnectionClosed event internally, causing listeners to
- R->GU, tell the grid user service that the user has logged out.
- R->P, tell the presence service that the user has logged out.
- R, Tell the scene to start cleaning up its data structures (this is the bulk of the cleanup work).
- R->RCh, tell any neighbours to close their child agents for this viewer.
- RCh-V, these neighbours will in turn tell the viewer that the regions are closing (not actually necessary).
- R->RCh, tell any neighbours to close their child agents for this viewer.
- R, triggers EventManager.OnClientClosed event internally, causing listeners to
- R->P, asks the presence service for which of the user's friends are online.
- R->RFr, tell regions containing online friends that the user has gone offline.
- R, triggers EventManager.OnRemovePresence event internally (this duplicates OnClientClosed and may be removed in the future).
- R, derezzes the avatar's attachments, hence shutting down and saving any attachment script state.
- R, tells other avatars still in the scene that the user has gone via the KillObject UDP packet.
- R, removes the scene presence and client structures and removes the avatar's physics object.
