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* Fix Mantis 761 (linking and delinking prims rapidly caused prims to 'disappear') 

* Root cause was that if two updates occurred in the same second of time, the second one was never sent
* Linking/delinking appears to be okay now
0.6.0-stable
Justin Clarke Casey 2008-03-13 00:22:38 +00:00
parent 27ff09cb2b
commit a4304fb9e6
5 changed files with 55 additions and 19 deletions
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6
OpenSim/Region/Environment/Scenes/InnerScene.cs
View File

@ -206,6 +206,12 @@ namespace OpenSim.Region.Environment.Scenes
}
}
/// <summary>
/// Add an entity to the list of prims to process on the next update
/// </summary>
/// <param name="obj">
/// A <see cref="EntityBase"/>
/// </param>
internal void AddToUpdateList(EntityBase obj)
{
lock (m_updateList)

2
OpenSim/Region/Environment/Scenes/Scene.cs
View File

@ -614,7 +614,7 @@ namespace OpenSim.Region.Environment.Scenes
}
/// <summary>
///
/// Start the timer which triggers regular scene updates
/// </summary>
public void StartTimer()
{

12
OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs
View File

@ -247,9 +247,11 @@ namespace OpenSim.Region.Environment.Scenes
public SceneObjectGroup(Scene scene, ulong regionHandle, SceneObjectPart part)
{
m_scene = scene;
part.SetParent(this);
part.ParentID = 0;
part.LinkNum = 0;
m_parts.Add(part.UUID, part);
SetPartAsRoot(part);
@ -691,7 +693,7 @@ namespace OpenSim.Region.Environment.Scenes
#region Scheduling
/// <summary>
///
/// Examine this object's parts to see if they've changed sufficiently to warrant an update
/// </summary>
public override void Update()
{
@ -703,6 +705,7 @@ namespace OpenSim.Region.Environment.Scenes
}
lastPhysGroupPos = AbsolutePosition;
}
if ((Math.Abs(lastPhysGroupRot.W - GroupRotation.W) > 0.1)
|| (Math.Abs(lastPhysGroupRot.X - GroupRotation.X) > 0.1)
|| (Math.Abs(lastPhysGroupRot.Y - GroupRotation.Y) > 0.1)
@ -714,6 +717,7 @@ namespace OpenSim.Region.Environment.Scenes
}
lastPhysGroupRot = GroupRotation;
}
foreach (SceneObjectPart part in m_parts.Values)
{
part.SendScheduledUpdates();
@ -737,7 +741,7 @@ namespace OpenSim.Region.Environment.Scenes
}
/// <summary>
///
/// Schedule a full update for every part in this object
/// </summary>
public void ScheduleGroupForFullUpdate()
{
@ -910,6 +914,7 @@ namespace OpenSim.Region.Environment.Scenes
linkPart.RotationOffset = new LLQuaternion(newRot.x, newRot.y, newRot.z, newRot.w);
linkPart.ParentID = m_rootPart.LocalId;
linkPart.LinkNum = m_parts.Count;
m_parts.Add(linkPart.UUID, linkPart);
@ -1715,6 +1720,9 @@ namespace OpenSim.Region.Environment.Scenes
m_scene.EventManager.TriggerGroupGrab(UUID, offsetPos, remoteClient.AgentId);
}
/// <summary>
/// Completely delete this group and tell all the scene presences about that deletion.
/// </summary>
public void DeleteGroup()
{
DetachFromBackup(this);

20
OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
View File

@ -132,7 +132,12 @@ namespace OpenSim.Region.Environment.Scenes
[XmlIgnore] public uint TimeStampLastActivity = 0; // Will be used for AutoReturn
/// <summary>
/// Only used internally to schedule client updates
/// Only used internally to schedule client updates.
/// 0 - no update is scheduled
/// 1 - terse update scheduled
/// 2 - full update scheduled
///
/// TODO - This should be an enumeration
/// </summary>
private byte m_updateFlag;
@ -1090,7 +1095,7 @@ namespace OpenSim.Region.Environment.Scenes
#region Update Scheduling
/// <summary>
///
/// Clear all pending updates
/// </summary>
private void ClearUpdateSchedule()
{
@ -1098,7 +1103,7 @@ namespace OpenSim.Region.Environment.Scenes
}
/// <summary>
///
/// Schedules this prim for a full update
/// </summary>
public void ScheduleFullUpdate()
{
@ -1107,6 +1112,7 @@ namespace OpenSim.Region.Environment.Scenes
m_parentGroup.HasGroupChanged = true;
m_parentGroup.QueueForUpdateCheck();
}
TimeStampFull = (uint) Util.UnixTimeSinceEpoch();
m_updateFlag = 2;
}
@ -1156,7 +1162,7 @@ namespace OpenSim.Region.Environment.Scenes
}
/// <summary>
///
/// Tell all the prims which have had updates scheduled
/// </summary>
public void SendScheduledUpdates()
{
@ -1689,6 +1695,9 @@ namespace OpenSim.Region.Environment.Scenes
#region Client Update Methods
/// <summary>
/// Tell all scene presences that they should send updates for this part to their clients
/// </summary>
public void AddFullUpdateToAllAvatars()
{
List<ScenePresence> avatars = m_parentGroup.GetScenePresences();
@ -1697,6 +1706,7 @@ namespace OpenSim.Region.Environment.Scenes
avatars[i].QueuePartForUpdate(this);
}
}
public void SendFullUpdateToAllClientsExcept(LLUUID agentID)
{
List<ScenePresence> avatars = m_parentGroup.GetScenePresences();
@ -1710,6 +1720,8 @@ namespace OpenSim.Region.Environment.Scenes
}
}
}
public void AddFullUpdateToAvatar(ScenePresence presence)
{
presence.QueuePartForUpdate(this);

28
OpenSim/Region/Environment/Scenes/ScenePresence.cs
View File

@ -418,6 +418,10 @@ namespace OpenSim.Region.Environment.Scenes
#endregion
/// <summary>
/// Add the part to the queue of parts for which we need to send an update to the client
/// </summary>
/// <param name="part"></param>
public void QueuePartForUpdate(SceneObjectPart part)
{
//if (InterestList.Contains(part.ParentGroup))
@ -434,6 +438,11 @@ namespace OpenSim.Region.Environment.Scenes
return m_scene.PermissionsMngr.GenerateClientFlags(m_uuid, ObjectID);
}
/// <summary>
/// Send updates to the client about prims which have been placed on the update queue. We don't
/// necessarily send updates for all the parts on the queue, e.g. if an updates with a more recent
/// timestamp has already been sent.
/// </summary>
public void SendPrimUpdates()
{
// if (m_scene.QuadTree.GetNodeID(this.AbsolutePosition.X, this.AbsolutePosition.Y) != m_currentQuadNode)
@ -447,12 +456,11 @@ namespace OpenSim.Region.Environment.Scenes
{
if (!m_isChildAgent || m_scene.m_seeIntoRegionFromNeighbor)
{
m_scene.SendAllSceneObjectsToClient(this);
m_gotAllObjectsInScene = true;
}
}
}
}
if (m_partsUpdateQueue.Count > 0)
{
bool runUpdate = true;
@ -465,16 +473,18 @@ namespace OpenSim.Region.Environment.Scenes
ScenePartUpdate update = m_updateTimes[part.UUID];
// Two updates can occur with the same timestamp (especially
// since our timestamp resolution is to the nearest second). The first
// could have been sent in the last update - we still need to send the
// second here.
if (update.LastFullUpdateTime < part.TimeStampFull)
// since our timestamp resolution is to the nearest second). Therefore, we still need
// to send an update even if the last full update time is identical to the part's
// update timestamp.
//
// If we don't do this, various events (such as linking and delinking in the same
// second), will stop working properly!
if (update.LastFullUpdateTime <= part.TimeStampFull)
{
//need to do a full update
part.SendFullUpdate(ControllingClient, GenerateClientFlags(part.UUID));
// We'll update to the part's timestamp rather than the current to
// We'll update to the part's timestamp rather than the current time to
// avoid the race condition whereby the next tick occurs while we are
// doing this update. If this happened, then subsequent updates which occurred
// on the same tick or the next tick of the last update would be ignored.