Lock updates out while linking and unlinking
Melanie
parent
e3a22ff37d
commit
46d5add175
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@ -26,6 +26,7 @@
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*/
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using System;
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using System.Threading;
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using System.Collections.Generic;
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using System.Reflection;
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using OpenMetaverse;
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@ -96,6 +97,8 @@ namespace OpenSim.Region.Framework.Scenes
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protected internal Dictionary<UUID, SceneObjectGroup> SceneObjectGroupsByFullID = new Dictionary<UUID, SceneObjectGroup>();
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private readonly Object m_dictionary_lock = new Object();
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private Object m_updateLock = new Object();
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#endregion
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protected internal SceneGraph(Scene parent, RegionInfo regInfo)
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@ -369,6 +372,9 @@ namespace OpenSim.Region.Framework.Scenes
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/// </summary>
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protected internal void UpdateObjectGroups()
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{
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if (!Monitor.TryEnter(m_updateLock))
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return;
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List<SceneObjectGroup> updates;
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// Some updates add more updates to the updateList.
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@ -395,6 +401,7 @@ namespace OpenSim.Region.Framework.Scenes
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"[INNER SCENE]: Failed to update {0}, {1} - {2}", sog.Name, sog.UUID, e);
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}
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}
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Monitor.Exit(m_updateLock);
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}
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protected internal void AddPhysicalPrim(int number)
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@ -1555,56 +1562,59 @@ namespace OpenSim.Region.Framework.Scenes
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/// <param name="childPrims"></param>
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protected internal void LinkObjects(IClientAPI client, uint parentPrimId, List<uint> childPrimIds)
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{
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SceneObjectGroup parentGroup = GetGroupByPrim(parentPrimId);
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List<SceneObjectGroup> childGroups = new List<SceneObjectGroup>();
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if (parentGroup != null)
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lock (m_updateLock)
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{
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// We do this in reverse to get the link order of the prims correct
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for (int i = childPrimIds.Count - 1; i >= 0; i--)
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SceneObjectGroup parentGroup = GetGroupByPrim(parentPrimId);
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List<SceneObjectGroup> childGroups = new List<SceneObjectGroup>();
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if (parentGroup != null)
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{
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SceneObjectGroup child = GetGroupByPrim(childPrimIds[i]);
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if (child != null)
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// We do this in reverse to get the link order of the prims correct
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for (int i = childPrimIds.Count - 1; i >= 0; i--)
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{
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// Make sure no child prim is set for sale
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// So that, on delink, no prims are unwittingly
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// left for sale and sold off
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child.RootPart.ObjectSaleType = 0;
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child.RootPart.SalePrice = 10;
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childGroups.Add(child);
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SceneObjectGroup child = GetGroupByPrim(childPrimIds[i]);
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if (child != null)
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{
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// Make sure no child prim is set for sale
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// So that, on delink, no prims are unwittingly
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// left for sale and sold off
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child.RootPart.ObjectSaleType = 0;
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child.RootPart.SalePrice = 10;
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childGroups.Add(child);
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}
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}
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}
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}
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else
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{
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return; // parent is null so not in this region
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}
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foreach (SceneObjectGroup child in childGroups)
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{
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parentGroup.LinkToGroup(child);
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// this is here so physics gets updated!
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// Don't remove! Bad juju! Stay away! or fix physics!
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child.AbsolutePosition = child.AbsolutePosition;
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}
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// We need to explicitly resend the newly link prim's object properties since no other actions
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// occur on link to invoke this elsewhere (such as object selection)
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parentGroup.RootPart.AddFlag(PrimFlags.CreateSelected);
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parentGroup.TriggerScriptChangedEvent(Changed.LINK);
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parentGroup.HasGroupChanged = true;
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parentGroup.ScheduleGroupForFullUpdate();
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if (client != null)
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{
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parentGroup.GetProperties(client);
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}
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else
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{
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foreach (ScenePresence p in GetScenePresences())
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else
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{
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parentGroup.GetProperties(p.ControllingClient);
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return; // parent is null so not in this region
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}
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foreach (SceneObjectGroup child in childGroups)
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{
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parentGroup.LinkToGroup(child);
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// this is here so physics gets updated!
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// Don't remove! Bad juju! Stay away! or fix physics!
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child.AbsolutePosition = child.AbsolutePosition;
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}
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// We need to explicitly resend the newly link prim's object properties since no other actions
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// occur on link to invoke this elsewhere (such as object selection)
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parentGroup.RootPart.AddFlag(PrimFlags.CreateSelected);
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parentGroup.TriggerScriptChangedEvent(Changed.LINK);
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parentGroup.HasGroupChanged = true;
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parentGroup.ScheduleGroupForFullUpdate();
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if (client != null)
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{
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parentGroup.GetProperties(client);
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}
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else
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{
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foreach (ScenePresence p in GetScenePresences())
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{
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parentGroup.GetProperties(p.ControllingClient);
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}
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}
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}
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}
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@ -1620,109 +1630,112 @@ namespace OpenSim.Region.Framework.Scenes
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protected internal void DelinkObjects(List<uint> primIds, bool sendEvents)
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{
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List<SceneObjectPart> childParts = new List<SceneObjectPart>();
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List<SceneObjectPart> rootParts = new List<SceneObjectPart>();
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List<SceneObjectGroup> affectedGroups = new List<SceneObjectGroup>();
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// Look them all up in one go, since that is comparatively expensive
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//
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foreach (uint primID in primIds)
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lock (m_updateLock)
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{
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SceneObjectPart part = m_parentScene.GetSceneObjectPart(primID);
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if (part != null)
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{
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if (part.LinkNum < 2) // Root or single
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rootParts.Add(part);
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else
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childParts.Add(part);
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SceneObjectGroup group = part.ParentGroup;
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if (!affectedGroups.Contains(group))
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affectedGroups.Add(group);
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}
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else
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{
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m_log.ErrorFormat("Viewer requested unlink of nonexistent part {0}", primID);
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}
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}
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foreach (SceneObjectPart child in childParts)
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{
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// Unlink all child parts from their groups
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List<SceneObjectPart> childParts = new List<SceneObjectPart>();
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List<SceneObjectPart> rootParts = new List<SceneObjectPart>();
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List<SceneObjectGroup> affectedGroups = new List<SceneObjectGroup>();
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// Look them all up in one go, since that is comparatively expensive
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//
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child.ParentGroup.DelinkFromGroup(child, sendEvents);
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}
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foreach (SceneObjectPart root in rootParts)
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{
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// In most cases, this will run only one time, and the prim
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// will be a solo prim
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// However, editing linked parts and unlinking may be different
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//
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SceneObjectGroup group = root.ParentGroup;
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List<SceneObjectPart> newSet = new List<SceneObjectPart>(group.Children.Values);
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int numChildren = group.Children.Count;
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// If there are prims left in a link set, but the root is
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// slated for unlink, we need to do this
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//
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if (numChildren != 1)
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foreach (uint primID in primIds)
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{
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// Unlink the remaining set
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//
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bool sendEventsToRemainder = true;
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if (numChildren > 1)
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sendEventsToRemainder = false;
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foreach (SceneObjectPart p in newSet)
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SceneObjectPart part = m_parentScene.GetSceneObjectPart(primID);
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if (part != null)
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{
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if (p != group.RootPart)
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group.DelinkFromGroup(p, sendEventsToRemainder);
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if (part.LinkNum < 2) // Root or single
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rootParts.Add(part);
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else
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childParts.Add(part);
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SceneObjectGroup group = part.ParentGroup;
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if (!affectedGroups.Contains(group))
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affectedGroups.Add(group);
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}
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// If there is more than one prim remaining, we
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// need to re-link
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//
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if (numChildren > 2)
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else
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{
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// Remove old root
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//
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if (newSet.Contains(root))
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newSet.Remove(root);
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m_log.ErrorFormat("Viewer requested unlink of nonexistent part {0}", primID);
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}
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}
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// Preserve link ordering
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foreach (SceneObjectPart child in childParts)
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{
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// Unlink all child parts from their groups
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//
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child.ParentGroup.DelinkFromGroup(child, sendEvents);
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}
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foreach (SceneObjectPart root in rootParts)
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{
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// In most cases, this will run only one time, and the prim
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// will be a solo prim
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// However, editing linked parts and unlinking may be different
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//
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SceneObjectGroup group = root.ParentGroup;
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List<SceneObjectPart> newSet = new List<SceneObjectPart>(group.Children.Values);
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int numChildren = group.Children.Count;
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// If there are prims left in a link set, but the root is
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// slated for unlink, we need to do this
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//
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if (numChildren != 1)
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{
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// Unlink the remaining set
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//
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newSet.Sort(delegate (SceneObjectPart a, SceneObjectPart b)
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bool sendEventsToRemainder = true;
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if (numChildren > 1)
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sendEventsToRemainder = false;
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foreach (SceneObjectPart p in newSet)
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{
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return a.LinkNum.CompareTo(b.LinkNum);
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});
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// Determine new root
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//
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SceneObjectPart newRoot = newSet[0];
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newSet.RemoveAt(0);
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List<uint> linkIDs = new List<uint>();
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foreach (SceneObjectPart newChild in newSet)
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{
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newChild.UpdateFlag = 0;
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linkIDs.Add(newChild.LocalId);
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if (p != group.RootPart)
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group.DelinkFromGroup(p, sendEventsToRemainder);
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}
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LinkObjects(null, newRoot.LocalId, linkIDs);
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if (!affectedGroups.Contains(newRoot.ParentGroup))
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affectedGroups.Add(newRoot.ParentGroup);
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// If there is more than one prim remaining, we
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// need to re-link
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//
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if (numChildren > 2)
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{
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// Remove old root
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//
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if (newSet.Contains(root))
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newSet.Remove(root);
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// Preserve link ordering
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//
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newSet.Sort(delegate (SceneObjectPart a, SceneObjectPart b)
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{
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return a.LinkNum.CompareTo(b.LinkNum);
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});
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// Determine new root
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//
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SceneObjectPart newRoot = newSet[0];
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newSet.RemoveAt(0);
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List<uint> linkIDs = new List<uint>();
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foreach (SceneObjectPart newChild in newSet)
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{
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newChild.UpdateFlag = 0;
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linkIDs.Add(newChild.LocalId);
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}
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LinkObjects(null, newRoot.LocalId, linkIDs);
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if (!affectedGroups.Contains(newRoot.ParentGroup))
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affectedGroups.Add(newRoot.ParentGroup);
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}
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}
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}
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}
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// Finally, trigger events in the roots
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//
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foreach (SceneObjectGroup g in affectedGroups)
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{
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g.TriggerScriptChangedEvent(Changed.LINK);
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g.HasGroupChanged = true; // Persist
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g.ScheduleGroupForFullUpdate();
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// Finally, trigger events in the roots
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//
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foreach (SceneObjectGroup g in affectedGroups)
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{
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g.TriggerScriptChangedEvent(Changed.LINK);
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g.HasGroupChanged = true; // Persist
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g.ScheduleGroupForFullUpdate();
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}
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}
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}
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