Logout - Revision history

Acryline at 12:10, 4 March 2015

2015-03-04T12:10:46Z

Justincc: /* Notes */

2013-03-21T21:22:18Z

‎Notes

Justincc: /* Logout */

2013-03-21T21:22:07Z

‎Logout

Justincc: 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 |..."

2013-03-21T21:08:32Z

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 |..."

New page

=Introduction=

This is the logout process as initiated by a user quitting the viewer.

= Logout =
==Key==
{| border = "1"
! key !! description
|-
| GU || griduser service
|-
| P || presence service
|-
| S || simulator
|-
| SCh || neighbour of simulator
|-
| SFr || simulator containing friend
|-
| V || viewer
|}

==Steps==

The steps involving listeners are not exhausive. Only the most significant operations are listed.

* V->S, on user quit, viewer sends a '''LogoutRequest''' UDP packet to the simulator.
* S, begins to tear down structures specific to the LL connection
* S, triggers '''IClientAPI.OnConnectionClosed''' event internally, causing listeners to
** S->GU, tell the grid user service that the user has logged out.
** S->P, tell the presence service that the user has logged out.
* S, Tell the scene to start cleaning up its data structures (this is the bulk of the cleanup work).
** S->SCh, tell any neighbours to close their child agents for this viewer.
* S, triggers '''EventManager.OnClientClosed''' event internally, causing listeners to
** S->SFr, tell regions containing friends that the user has gone offline.
* S, triggers '''EventManager.OnRemovePresence''' event internally (this duplicates OnClientClosed and may be removed in the future).
* S, derezzes the avatar's attachments, hence shutting down and saving any attachment script state.
* S, tells other avatars still in the scene that the user has gone via the '''KillObject''' UDP packet.
* S, removes the scene presence and client structures and removes the avatar's physics object.

← Older revision		Revision as of 12:10, 4 March 2015
Line 1:		Line 1:
		+	{{Languages\|Logout}}
	=Introduction=		=Introduction=

@@ Line 6: / Line 6: @@
 ==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.
+* Many 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.

@@ Line 4: / Line 4: @@
 = Logout =
 ==Key==
 {| border = "1"
@@ Line 12: / Line 17: @@
   | P   || presence service
   |-
-  | S   || simulator
+  | R   || region occuped by the user's avatar
   |-
-  | SCh || neighbour of simulator
+  | RCh || neighbour of avatar region
   |-
-  | SFr || simulator containing friend
+  | RFr || region containing friend
   |-
   | V   || viewer
   |}
 ==Steps==
@@ Line 25: / Line 40: @@
 The steps involving listeners are not exhausive.  Only the most significant operations are listed.
-* V->S, on user quit, viewer sends a '''LogoutRequest''' UDP packet to the simulator.
+* V->R, on user quit, viewer sends a '''LogoutRequest''' UDP packet to the region.
-* S, begins to tear down structures specific to the LL connection
+* R->V, simulator immediate replies with a '''LogoutReply''' UDP packet.
-* S, triggers '''IClientAPI.OnConnectionClosed''' event internally, causing listeners to
+* R, begins to tear down structures specific to the LL connection
-** S->GU, tell the grid user service that the user has logged out.
+* R, triggers '''IClientAPI.OnConnectionClosed''' event internally, causing listeners to
-** S->P, tell the presence service that the user has logged out.
+** R->GU, tell the grid user service that the user has logged out.
-* S, Tell the scene to start cleaning up its data structures (this is the bulk of the cleanup work).
+** R->P, tell the presence service that the user has logged out.
-** S->SCh, tell any neighbours to close their child agents for this viewer.
+* R, Tell the scene to start cleaning up its data structures (this is the bulk of the cleanup work).
-* S, triggers '''EventManager.OnClientClosed''' event internally, causing listeners to
+** R->RCh, tell any neighbours to close their child agents for this viewer.
-** S->SFr, tell regions containing friends that the user has gone offline.
+*** RCh-V, these neighbours will in turn tell the viewer that the regions are closing (not actually necessary).
-* S, triggers '''EventManager.OnRemovePresence''' event internally (this duplicates OnClientClosed and may be removed in the future).
+* R, triggers '''EventManager.OnClientClosed''' event internally, causing listeners to
-* S, derezzes the avatar's attachments, hence shutting down and saving any attachment script state.
+** R->P, asks the presence service for which of the user's friends are online.
-* S, tells other avatars still in the scene that the user has gone via the '''KillObject''' UDP packet.
+** R->RFr, tell regions containing online friends that the user has gone offline.
-* S, removes the scene presence and client structures and removes the avatar's physics object.
+* R, triggers '''EventManager.OnRemovePresence''' event internally (this duplicates OnClientClosed and may be removed in the future).