diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs index 26a843e2d6..fb34ddc022 100644 --- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs +++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs @@ -98,6 +98,66 @@ namespace OpenSim.Region.Framework.Scenes private bool m_hasGroupChanged = false; private long timeFirstChanged; private long timeLastChanged; + private System.Threading.ReaderWriterLockSlim m_partsLock = new System.Threading.ReaderWriterLockSlim(); + + public void lockPartsForRead(bool locked) + { + if (locked) + { + if (m_partsLock.RecursiveReadCount > 0) + { + m_log.Error("[SceneObjectGroup.m_parts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue."); + m_partsLock.ExitReadLock(); + } + if (m_partsLock.RecursiveWriteCount > 0) + { + m_log.Error("[SceneObjectGroup.m_parts] Recursive read lock requested. This should not happen and means something needs to be fixed."); + m_partsLock.ExitWriteLock(); + } + + while (!m_partsLock.TryEnterReadLock(60000)) + { + m_log.Error("[SceneObjectGroup.m_parts] Thread lock detected while trying to aquire READ lock of m_parts in SceneObjectGroup. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed."); + if (m_partsLock.IsWriteLockHeld) + { + m_partsLock = new System.Threading.ReaderWriterLockSlim(); + } + } + } + else + { + m_partsLock.ExitReadLock(); + } + } + public void lockPartsForWrite(bool locked) + { + if (locked) + { + if (m_partsLock.RecursiveReadCount > 0) + { + m_log.Error("[SceneObjectGroup.m_parts] Recursive write lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue."); + m_partsLock.ExitReadLock(); + } + if (m_partsLock.RecursiveWriteCount > 0) + { + m_log.Error("[SceneObjectGroup.m_parts] Recursive write lock requested. This should not happen and means something needs to be fixed."); + m_partsLock.ExitWriteLock(); + } + + while (!m_partsLock.TryEnterWriteLock(60000)) + { + m_log.Error("[SceneObjectGroup.m_parts] Thread lock detected while trying to aquire WRITE lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed."); + if (m_partsLock.IsWriteLockHeld) + { + m_partsLock = new System.Threading.ReaderWriterLockSlim(); + } + } + } + else + { + m_partsLock.ExitWriteLock(); + } + } public bool HasGroupChanged { @@ -243,13 +303,16 @@ namespace OpenSim.Region.Framework.Scenes set { m_regionHandle = value; - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.RegionHandle = m_regionHandle; + } } + lockPartsForRead(false); } } @@ -275,13 +338,16 @@ namespace OpenSim.Region.Framework.Scenes m_scene.CrossPrimGroupIntoNewRegion(val, this, true); } - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.GroupPosition = val; + } } + lockPartsForRead(false); //if (m_rootPart.PhysActor != null) //{ @@ -432,13 +498,16 @@ namespace OpenSim.Region.Framework.Scenes public void SetFromItemID(UUID AssetId) { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.FromItemID = AssetId; + } } + lockPartsForRead(false); } public UUID GetFromItemID() @@ -505,10 +574,11 @@ namespace OpenSim.Region.Framework.Scenes Vector3 maxScale = Vector3.Zero; Vector3 finalScale = new Vector3(0.5f, 0.5f, 0.5f); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + Vector3 partscale = part.Scale; Vector3 partoffset = part.OffsetPosition; @@ -519,8 +589,11 @@ namespace OpenSim.Region.Framework.Scenes maxScale.X = (partscale.X + partoffset.X > maxScale.X) ? partscale.X + partoffset.X : maxScale.X; maxScale.Y = (partscale.Y + partoffset.Y > maxScale.Y) ? partscale.Y + partoffset.Y : maxScale.Y; maxScale.Z = (partscale.Z + partoffset.Z > maxScale.Z) ? partscale.Z + partoffset.Z : maxScale.Z; + } } + lockPartsForRead(false); + finalScale.X = (minScale.X > maxScale.X) ? minScale.X : maxScale.X; finalScale.Y = (minScale.Y > maxScale.Y) ? minScale.Y : maxScale.Y; finalScale.Z = (minScale.Z > maxScale.Z) ? minScale.Z : maxScale.Z; @@ -536,10 +609,11 @@ namespace OpenSim.Region.Framework.Scenes EntityIntersection result = new EntityIntersection(); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + // Temporary commented to stop compiler warning //Vector3 partPosition = // new Vector3(part.AbsolutePosition.X, part.AbsolutePosition.Y, part.AbsolutePosition.Z); @@ -567,8 +641,10 @@ namespace OpenSim.Region.Framework.Scenes result.distance = inter.distance; } } + } } + lockPartsForRead(false); return result; } @@ -581,10 +657,11 @@ namespace OpenSim.Region.Framework.Scenes public Vector3 GetAxisAlignedBoundingBox(out float offsetHeight) { float maxX = -256f, maxY = -256f, maxZ = -256f, minX = 256f, minY = 256f, minZ = 256f; - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + Vector3 worldPos = part.GetWorldPosition(); Vector3 offset = worldPos - AbsolutePosition; Quaternion worldRot; @@ -643,6 +720,8 @@ namespace OpenSim.Region.Framework.Scenes backBottomRight.Y = orig.Y + (part.Scale.Y / 2); backBottomRight.Z = orig.Z - (part.Scale.Z / 2); + + //m_log.InfoFormat("pre corner 1 is {0} {1} {2}", frontTopLeft.X, frontTopLeft.Y, frontTopLeft.Z); //m_log.InfoFormat("pre corner 2 is {0} {1} {2}", frontTopRight.X, frontTopRight.Y, frontTopRight.Z); //m_log.InfoFormat("pre corner 3 is {0} {1} {2}", frontBottomRight.X, frontBottomRight.Y, frontBottomRight.Z); @@ -814,6 +893,7 @@ namespace OpenSim.Region.Framework.Scenes minZ = backBottomLeft.Z; } } + lockPartsForRead(false); Vector3 boundingBox = new Vector3(maxX - minX, maxY - minY, maxZ - minZ); @@ -842,17 +922,20 @@ namespace OpenSim.Region.Framework.Scenes Dictionary states = new Dictionary(); // Capture script state while holding the lock - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + Dictionary pstates = part.Inventory.GetScriptStates(); foreach (UUID itemid in pstates.Keys) { states.Add(itemid, pstates[itemid]); } + } } + lockPartsForRead(false); if (states.Count > 0) { @@ -1014,13 +1097,16 @@ namespace OpenSim.Region.Framework.Scenes public override void UpdateMovement() { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.UpdateMovement(); + } } + lockPartsForRead(false); } public ushort GetTimeDilation() @@ -1064,7 +1150,7 @@ namespace OpenSim.Region.Framework.Scenes /// public void AddPart(SceneObjectPart part) { - lock (m_parts) + lockPartsForWrite(true); { part.SetParent(this); m_parts.Add(part.UUID, part); @@ -1074,6 +1160,7 @@ namespace OpenSim.Region.Framework.Scenes if (part.LinkNum == 2 && RootPart != null) RootPart.LinkNum = 1; } + lockPartsForWrite(false); } /// @@ -1081,28 +1168,33 @@ namespace OpenSim.Region.Framework.Scenes /// private void UpdateParentIDs() { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part.UUID != m_rootPart.UUID) { part.ParentID = m_rootPart.LocalId; } + } } + lockPartsForRead(false); } public void RegenerateFullIDs() { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.UUID = UUID.Random(); - + } } + lockPartsForRead(false); } // helper provided for parts. @@ -1183,29 +1275,33 @@ namespace OpenSim.Region.Framework.Scenes DetachFromBackup(); - lock (m_parts) + lockPartsForRead(true); + List values = new List(m_parts.Values); + lockPartsForRead(false); + + foreach (SceneObjectPart part in values) { - foreach (SceneObjectPart part in m_parts.Values) - { // part.Inventory.RemoveScriptInstances(); - - ScenePresence[] avatars = Scene.GetScenePresences(); - for (int i = 0; i < avatars.Length; i++) + + ScenePresence[] avatars = Scene.GetScenePresences(); + for (int i = 0; i < avatars.Length; i++) + { + if (avatars[i].ParentID == LocalId) { - if (avatars[i].ParentID == LocalId) - { - avatars[i].StandUp(); - } + avatars[i].StandUp(); + } - if (!silent) - { - part.UpdateFlag = 0; - if (part == m_rootPart) - avatars[i].ControllingClient.SendKillObject(m_regionHandle, part.LocalId); - } + if (!silent) + { + part.UpdateFlag = 0; + if (part == m_rootPart) + avatars[i].ControllingClient.SendKillObject(m_regionHandle, part.LocalId); } } + } + + } public void AddScriptLPS(int count) @@ -1230,17 +1326,20 @@ namespace OpenSim.Region.Framework.Scenes scriptEvents aggregateScriptEvents=0; - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part == null) continue; if (part != RootPart) part.ObjectFlags = objectflagupdate; aggregateScriptEvents |= part.AggregateScriptEvents; + } } + lockPartsForRead(false); m_scriptListens_atTarget = ((aggregateScriptEvents & scriptEvents.at_target) != 0); m_scriptListens_notAtTarget = ((aggregateScriptEvents & scriptEvents.not_at_target) != 0); @@ -1273,42 +1372,52 @@ namespace OpenSim.Region.Framework.Scenes /// public void ApplyPhysics(bool m_physicalPrim) { - lock (m_parts) + lockPartsForRead(true); + + if (m_parts.Count > 1) { - if (m_parts.Count > 1) + List values = new List(m_parts.Values); + lockPartsForRead(false); + m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim); + foreach (SceneObjectPart part in values) { - m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim); - foreach (SceneObjectPart part in m_parts.Values) + + if (part.LocalId != m_rootPart.LocalId) { - if (part.LocalId != m_rootPart.LocalId) - { - part.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), part.VolumeDetectActive, m_physicalPrim); - } + part.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), part.VolumeDetectActive, m_physicalPrim); } - // Hack to get the physics scene geometries in the right spot - ResetChildPrimPhysicsPositions(); - } - else - { - m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim); } + // Hack to get the physics scene geometries in the right spot + ResetChildPrimPhysicsPositions(); + } + else + { + lockPartsForRead(false); + m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive, m_physicalPrim); } } public void SetOwnerId(UUID userId) { - ForEachPart(delegate(SceneObjectPart part) { part.OwnerID = userId; }); + ForEachPart(delegate(SceneObjectPart part) + { + + part.OwnerID = userId; + + }); } public void ForEachPart(Action whatToDo) { - lock (m_parts) + lockPartsForRead(true); + List values = new List(m_parts.Values); + lockPartsForRead(false); + foreach (SceneObjectPart part in values) { - foreach (SceneObjectPart part in m_parts.Values) - { - whatToDo(part); - } + + whatToDo(part); + } } @@ -1407,14 +1516,17 @@ namespace OpenSim.Region.Framework.Scenes { SendPartFullUpdate(remoteClient, RootPart, m_scene.Permissions.GenerateClientFlags(remoteClient.AgentId, RootPart.UUID)); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part != RootPart) SendPartFullUpdate(remoteClient, part, m_scene.Permissions.GenerateClientFlags(remoteClient.AgentId, part.UUID)); + } } + lockPartsForRead(false); } /// @@ -1509,10 +1621,11 @@ namespace OpenSim.Region.Framework.Scenes List partList; - lock (m_parts) - { - partList = new List(m_parts.Values); - } + lockPartsForRead(true); + + partList = new List(m_parts.Values); + + lockPartsForRead(false); partList.Sort(delegate(SceneObjectPart p1, SceneObjectPart p2) { @@ -1835,10 +1948,11 @@ namespace OpenSim.Region.Framework.Scenes SceneObjectPart newPart = part.Copy(m_scene.AllocateLocalId(), OwnerID, GroupID, m_parts.Count, userExposed); newPart.SetParent(this); - lock (m_parts) + lockPartsForWrite(true); { m_parts.Add(newPart.UUID, newPart); } + lockPartsForWrite(false); SetPartAsNonRoot(newPart); @@ -1901,7 +2015,7 @@ namespace OpenSim.Region.Framework.Scenes //if ((RootPart.Flags & PrimFlags.TemporaryOnRez) != 0) // return; - lock (m_parts) + lockPartsForRead(true); { bool UsePhysics = ((RootPart.Flags & PrimFlags.Physics) != 0); @@ -1919,34 +2033,43 @@ namespace OpenSim.Region.Framework.Scenes foreach (SceneObjectPart part in m_parts.Values) { + part.SendScheduledUpdates(); + } } + lockPartsForRead(false); } public void ScheduleFullUpdateToAvatar(ScenePresence presence) { RootPart.AddFullUpdateToAvatar(presence); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part != RootPart) part.AddFullUpdateToAvatar(presence); + } } + lockPartsForRead(false); } public void ScheduleTerseUpdateToAvatar(ScenePresence presence) { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.AddTerseUpdateToAvatar(presence); + } } + lockPartsForRead(false); } /// @@ -1957,14 +2080,17 @@ namespace OpenSim.Region.Framework.Scenes checkAtTargets(); RootPart.ScheduleFullUpdate(); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part != RootPart) part.ScheduleFullUpdate(); + } } + lockPartsForRead(false); } /// @@ -1972,13 +2098,16 @@ namespace OpenSim.Region.Framework.Scenes /// public void ScheduleGroupForTerseUpdate() { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + part.ScheduleTerseUpdate(); + } } + lockPartsForRead(false); } /// @@ -1991,14 +2120,17 @@ namespace OpenSim.Region.Framework.Scenes RootPart.SendFullUpdateToAllClients(); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { + if (part != RootPart) part.SendFullUpdateToAllClients(); + } } + lockPartsForRead(false); } /// @@ -2029,14 +2161,15 @@ namespace OpenSim.Region.Framework.Scenes { if (IsDeleted) return; - - lock (m_parts) + + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { part.SendTerseUpdateToAllClients(); } } + lockPartsForRead(false); } #endregion @@ -2050,16 +2183,18 @@ namespace OpenSim.Region.Framework.Scenes /// null if no child part with that linknum or child part public SceneObjectPart GetLinkNumPart(int linknum) { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { if (part.LinkNum == linknum) { + lockPartsForRead(false); return part; } } } + lockPartsForRead(false); return null; } @@ -2087,17 +2222,19 @@ namespace OpenSim.Region.Framework.Scenes public SceneObjectPart GetChildPart(uint localID) { //m_log.DebugFormat("Entered looking for {0}", localID); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { //m_log.DebugFormat("Found {0}", part.LocalId); if (part.LocalId == localID) { + lockPartsForRead(false); return part; } } } + lockPartsForRead(false); return null; } @@ -2127,17 +2264,19 @@ namespace OpenSim.Region.Framework.Scenes public bool HasChildPrim(uint localID) { //m_log.DebugFormat("Entered HasChildPrim looking for {0}", localID); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { //m_log.DebugFormat("Found {0}", part.LocalId); if (part.LocalId == localID) { + lockPartsForRead(false); return true; } } } + lockPartsForRead(false); return false; } @@ -2187,53 +2326,57 @@ namespace OpenSim.Region.Framework.Scenes if (m_rootPart.LinkNum == 0) m_rootPart.LinkNum = 1; - lock (m_parts) + lockPartsForWrite(true); + + m_parts.Add(linkPart.UUID, linkPart); + + lockPartsForWrite(false); + + // Insert in terms of link numbers, the new links + // before the current ones (with the exception of + // the root prim. Shuffle the old ones up + lockPartsForRead(true); + foreach (KeyValuePair kvp in m_parts) { - m_parts.Add(linkPart.UUID, linkPart); - - // Insert in terms of link numbers, the new links - // before the current ones (with the exception of - // the root prim. Shuffle the old ones up - foreach (KeyValuePair kvp in m_parts) + if (kvp.Value.LinkNum != 1) { - if (kvp.Value.LinkNum != 1) - { - // Don't update root prim link number - kvp.Value.LinkNum += objectGroup.PrimCount; - } + // Don't update root prim link number + kvp.Value.LinkNum += objectGroup.PrimCount; } + } + lockPartsForRead(false); - linkPart.LinkNum = 2; + linkPart.LinkNum = 2; - linkPart.SetParent(this); - linkPart.AddFlag(PrimFlags.CreateSelected); + linkPart.SetParent(this); + linkPart.AddFlag(PrimFlags.CreateSelected); - //if (linkPart.PhysActor != null) - //{ - // m_scene.PhysicsScene.RemovePrim(linkPart.PhysActor); - - //linkPart.PhysActor = null; - //} + //if (linkPart.PhysActor != null) + //{ + // m_scene.PhysicsScene.RemovePrim(linkPart.PhysActor); + + //linkPart.PhysActor = null; + //} - //TODO: rest of parts - int linkNum = 3; - foreach (SceneObjectPart part in objectGroup.Children.Values) + //TODO: rest of parts + int linkNum = 3; + foreach (SceneObjectPart part in objectGroup.Children.Values) + { + if (part.UUID != objectGroup.m_rootPart.UUID) { - if (part.UUID != objectGroup.m_rootPart.UUID) - { - LinkNonRootPart(part, oldGroupPosition, oldRootRotation, linkNum++); - } - part.ClearUndoState(); + LinkNonRootPart(part, oldGroupPosition, oldRootRotation, linkNum++); } + part.ClearUndoState(); } m_scene.UnlinkSceneObject(objectGroup.UUID, true); objectGroup.m_isDeleted = true; + + objectGroup.lockPartsForWrite(true); - lock (objectGroup.m_parts) - { - objectGroup.m_parts.Clear(); - } + objectGroup.m_parts.Clear(); + + objectGroup.lockPartsForWrite(false); // Can't do this yet since backup still makes use of the root part without any synchronization // objectGroup.m_rootPart = null; @@ -2292,11 +2435,12 @@ namespace OpenSim.Region.Framework.Scenes Quaternion worldRot = linkPart.GetWorldRotation(); // Remove the part from this object - lock (m_parts) + lockPartsForWrite(true); { m_parts.Remove(linkPart.UUID); } - + lockPartsForWrite(false); + lockPartsForRead(true); if (m_parts.Count == 1 && RootPart != null) //Single prim is left RootPart.LinkNum = 0; else @@ -2307,6 +2451,7 @@ namespace OpenSim.Region.Framework.Scenes p.LinkNum--; } } + lockPartsForRead(false); linkPart.ParentID = 0; linkPart.LinkNum = 0; @@ -2624,22 +2769,23 @@ namespace OpenSim.Region.Framework.Scenes if (selectionPart != null) { - lock (m_parts) + lockPartsForRead(true); + List parts = new List(m_parts.Values); + lockPartsForRead(false); + foreach (SceneObjectPart part in parts) { - foreach (SceneObjectPart part in m_parts.Values) + if (part.Scale.X > 10.0 || part.Scale.Y > 10.0 || part.Scale.Z > 10.0) { - if (part.Scale.X > 10.0 || part.Scale.Y > 10.0 || part.Scale.Z > 10.0) - { - UsePhysics = false; // Reset physics - break; - } - } - - foreach (SceneObjectPart part in m_parts.Values) - { - part.UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, IsVolumeDetect); + UsePhysics = false; // Reset physics + break; } } + + foreach (SceneObjectPart part in parts) + { + part.UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, IsVolumeDetect); + } + } } @@ -2863,7 +3009,7 @@ namespace OpenSim.Region.Framework.Scenes prevScale.Z *= z; part.Resize(prevScale); - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart obPart in m_parts.Values) { @@ -2882,6 +3028,7 @@ namespace OpenSim.Region.Framework.Scenes } } } + lockPartsForRead(false); if (part.PhysActor != null) { @@ -2962,7 +3109,7 @@ namespace OpenSim.Region.Framework.Scenes axDiff *= Quaternion.Inverse(partRotation); diff = axDiff; - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart obPart in m_parts.Values) { @@ -2972,6 +3119,7 @@ namespace OpenSim.Region.Framework.Scenes } } } + lockPartsForRead(false); AbsolutePosition = newPos; @@ -3089,7 +3237,7 @@ namespace OpenSim.Region.Framework.Scenes m_scene.PhysicsScene.AddPhysicsActorTaint(m_rootPart.PhysActor); } - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart prim in m_parts.Values) { @@ -3107,6 +3255,7 @@ namespace OpenSim.Region.Framework.Scenes } } } + lockPartsForRead(false); m_rootPart.ScheduleTerseUpdate(); } @@ -3205,7 +3354,7 @@ namespace OpenSim.Region.Framework.Scenes if (atTargets.Count > 0) { uint[] localids = new uint[0]; - lock (m_parts) + lockPartsForRead(true); { localids = new uint[m_parts.Count]; int cntr = 0; @@ -3215,6 +3364,7 @@ namespace OpenSim.Region.Framework.Scenes cntr++; } } + lockPartsForRead(false); for (int ctr = 0; ctr < localids.Length; ctr++) { @@ -3233,7 +3383,7 @@ namespace OpenSim.Region.Framework.Scenes { //trigger not_at_target uint[] localids = new uint[0]; - lock (m_parts) + lockPartsForRead(true); { localids = new uint[m_parts.Count]; int cntr = 0; @@ -3243,7 +3393,8 @@ namespace OpenSim.Region.Framework.Scenes cntr++; } } - + lockPartsForRead(false); + for (int ctr = 0; ctr < localids.Length; ctr++) { m_scene.EventManager.TriggerNotAtTargetEvent(localids[ctr]); @@ -3256,19 +3407,20 @@ namespace OpenSim.Region.Framework.Scenes public float GetMass() { float retmass = 0f; - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { retmass += part.GetMass(); } } + lockPartsForRead(false); return retmass; } public void CheckSculptAndLoad() { - lock (m_parts) + lockPartsForRead(true); { if (!IsDeleted) { @@ -3293,6 +3445,7 @@ namespace OpenSim.Region.Framework.Scenes } } } + lockPartsForRead(false); } protected void AssetReceived(string id, Object sender, AssetBase asset) @@ -3313,7 +3466,7 @@ namespace OpenSim.Region.Framework.Scenes /// public void SetGroup(UUID GroupID, IClientAPI client) { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) { @@ -3323,7 +3476,7 @@ namespace OpenSim.Region.Framework.Scenes HasGroupChanged = true; } - + lockPartsForRead(false); ScheduleGroupForFullUpdate(); } @@ -3342,11 +3495,12 @@ namespace OpenSim.Region.Framework.Scenes public void SetAttachmentPoint(byte point) { - lock (m_parts) + lockPartsForRead(true); { foreach (SceneObjectPart part in m_parts.Values) part.SetAttachmentPoint(point); } + lockPartsForRead(false); } #region ISceneObject diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs index ec771e359f..267928b743 100644 --- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs +++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs @@ -2950,8 +2950,17 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api return m_host.OwnerID.ToString(); } + [DebuggerNonUserCode] public void llInstantMessage(string user, string message) { + UUID result; + if (!UUID.TryParse(user, out result)) + { + throw new Exception(String.Format("An invalid key of '{0} was passed to llInstantMessage", user)); + return; + } + + m_host.AddScriptLPS(1); // We may be able to use ClientView.SendInstantMessage here, but we need a client instance. @@ -2966,7 +2975,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api UUID friendTransactionID = UUID.Random(); //m_pendingFriendRequests.Add(friendTransactionID, fromAgentID); - + GridInstantMessage msg = new GridInstantMessage(); msg.fromAgentID = new Guid(m_host.UUID.ToString()); // fromAgentID.Guid; msg.toAgentID = new Guid(user); // toAgentID.Guid; diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs index d997ea30be..49c69ab9e4 100644 --- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs +++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs @@ -101,6 +101,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine private Dictionary m_Scripts = new Dictionary(); + private OpenMetaverse.ReaderWriterLockSlim m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim(); + // Maps the asset ID to the assembly private Dictionary m_Assemblies = @@ -122,6 +124,65 @@ namespace OpenSim.Region.ScriptEngine.XEngine private ScriptCompileQueue m_CompileQueue = new ScriptCompileQueue(); IWorkItemResult m_CurrentCompile = null; + private void lockScriptsForRead(bool locked) + { + if (locked) + { + if (m_scriptsLock.RecursiveReadCount > 0) + { + m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue."); + m_scriptsLock.ExitReadLock(); + } + if (m_scriptsLock.RecursiveWriteCount > 0) + { + m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed."); + m_scriptsLock.ExitWriteLock(); + } + + while (!m_scriptsLock.TryEnterReadLock(60000)) + { + m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire READ lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed."); + if (m_scriptsLock.IsWriteLockHeld) + { + m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim(); + } + } + } + else + { + m_scriptsLock.ExitReadLock(); + } + } + private void lockScriptsForWrite(bool locked) + { + if (locked) + { + if (m_scriptsLock.RecursiveReadCount > 0) + { + m_log.Error("[XEngine.m_Scripts] Recursive read lock requested. This should not happen and means something needs to be fixed. For now though, it's safe to continue."); + m_scriptsLock.ExitReadLock(); + } + if (m_scriptsLock.RecursiveWriteCount > 0) + { + m_log.Error("[XEngine.m_Scripts] Recursive write lock requested. This should not happen and means something needs to be fixed."); + m_scriptsLock.ExitWriteLock(); + } + + while (!m_scriptsLock.TryEnterWriteLock(60000)) + { + m_log.Error("[XEngine.m_Scripts] Thread lock detected while trying to aquire WRITE lock of m_scripts in XEngine. I'm going to try to solve the thread lock automatically to preserve region stability, but this needs to be fixed."); + if (m_scriptsLock.IsWriteLockHeld) + { + m_scriptsLock = new OpenMetaverse.ReaderWriterLockSlim(); + } + } + } + else + { + m_scriptsLock.ExitWriteLock(); + } + } + public string ScriptEngineName { get { return "XEngine"; } @@ -261,43 +322,45 @@ namespace OpenSim.Region.ScriptEngine.XEngine public void RemoveRegion(Scene scene) { - lock (m_Scripts) + lockScriptsForRead(true); + foreach (IScriptInstance instance in m_Scripts.Values) { - foreach (IScriptInstance instance in m_Scripts.Values) + // Force a final state save + // + if (m_Assemblies.ContainsKey(instance.AssetID)) { - // Force a final state save - // - if (m_Assemblies.ContainsKey(instance.AssetID)) - { - string assembly = m_Assemblies[instance.AssetID]; - instance.SaveState(assembly); - } - - // Clear the event queue and abort the instance thread - // - instance.ClearQueue(); - instance.Stop(0); - - // Release events, timer, etc - // - instance.DestroyScriptInstance(); - - // Unload scripts and app domains - // Must be done explicitly because they have infinite - // lifetime - // - m_DomainScripts[instance.AppDomain].Remove(instance.ItemID); - if (m_DomainScripts[instance.AppDomain].Count == 0) - { - m_DomainScripts.Remove(instance.AppDomain); - UnloadAppDomain(instance.AppDomain); - } + string assembly = m_Assemblies[instance.AssetID]; + instance.SaveState(assembly); + } + + // Clear the event queue and abort the instance thread + // + instance.ClearQueue(); + instance.Stop(0); + + // Release events, timer, etc + // + instance.DestroyScriptInstance(); + + // Unload scripts and app domains + // Must be done explicitly because they have infinite + // lifetime + // + m_DomainScripts[instance.AppDomain].Remove(instance.ItemID); + if (m_DomainScripts[instance.AppDomain].Count == 0) + { + m_DomainScripts.Remove(instance.AppDomain); + UnloadAppDomain(instance.AppDomain); } - m_Scripts.Clear(); - m_PrimObjects.Clear(); - m_Assemblies.Clear(); - m_DomainScripts.Clear(); } + lockScriptsForRead(false); + lockScriptsForWrite(true); + m_Scripts.Clear(); + lockScriptsForWrite(false); + m_PrimObjects.Clear(); + m_Assemblies.Clear(); + m_DomainScripts.Clear(); + lock (m_ScriptEngines) { m_ScriptEngines.Remove(this); @@ -356,22 +419,20 @@ namespace OpenSim.Region.ScriptEngine.XEngine List instances = new List(); - lock (m_Scripts) - { - foreach (IScriptInstance instance in m_Scripts.Values) + lockScriptsForRead(true); + foreach (IScriptInstance instance in m_Scripts.Values) instances.Add(instance); - } + lockScriptsForRead(false); foreach (IScriptInstance i in instances) { string assembly = String.Empty; - lock (m_Scripts) - { + if (!m_Assemblies.ContainsKey(i.AssetID)) continue; assembly = m_Assemblies[i.AssetID]; - } + i.SaveState(assembly); } @@ -673,173 +734,184 @@ namespace OpenSim.Region.ScriptEngine.XEngine return false; } - lock (m_Scripts) + + + ScriptInstance instance = null; + // Create the object record + lockScriptsForRead(true); + if ((!m_Scripts.ContainsKey(itemID)) || + (m_Scripts[itemID].AssetID != assetID)) { - ScriptInstance instance = null; - // Create the object record + lockScriptsForRead(false); - if ((!m_Scripts.ContainsKey(itemID)) || - (m_Scripts[itemID].AssetID != assetID)) + UUID appDomain = assetID; + + if (part.ParentGroup.IsAttachment) + appDomain = part.ParentGroup.RootPart.UUID; + + if (!m_AppDomains.ContainsKey(appDomain)) { - UUID appDomain = assetID; - - if (part.ParentGroup.IsAttachment) - appDomain = part.ParentGroup.RootPart.UUID; - - if (!m_AppDomains.ContainsKey(appDomain)) + try { - try - { - AppDomainSetup appSetup = new AppDomainSetup(); -// appSetup.ApplicationBase = Path.Combine( -// "ScriptEngines", -// m_Scene.RegionInfo.RegionID.ToString()); + AppDomainSetup appSetup = new AppDomainSetup(); + // appSetup.ApplicationBase = Path.Combine( + // "ScriptEngines", + // m_Scene.RegionInfo.RegionID.ToString()); - Evidence baseEvidence = AppDomain.CurrentDomain.Evidence; - Evidence evidence = new Evidence(baseEvidence); + Evidence baseEvidence = AppDomain.CurrentDomain.Evidence; + Evidence evidence = new Evidence(baseEvidence); - AppDomain sandbox; - if (m_AppDomainLoading) - sandbox = AppDomain.CreateDomain( - m_Scene.RegionInfo.RegionID.ToString(), - evidence, appSetup); - else - sandbox = AppDomain.CurrentDomain; - - //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel(); - //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition(); - //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet"); - //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet); - //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement); - //sandboxPolicy.RootCodeGroup = sandboxCodeGroup; - //sandbox.SetAppDomainPolicy(sandboxPolicy); - - m_AppDomains[appDomain] = sandbox; + AppDomain sandbox; + if (m_AppDomainLoading) + sandbox = AppDomain.CreateDomain( + m_Scene.RegionInfo.RegionID.ToString(), + evidence, appSetup); + else + sandbox = AppDomain.CurrentDomain; - m_AppDomains[appDomain].AssemblyResolve += - new ResolveEventHandler( - AssemblyResolver.OnAssemblyResolve); - m_DomainScripts[appDomain] = new List(); - } - catch (Exception e) - { - m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString()); - m_ScriptErrorMessage += "Exception creating app domain:\n"; - m_ScriptFailCount++; - lock (m_AddingAssemblies) - { - m_AddingAssemblies[assembly]--; - } - return false; - } + //PolicyLevel sandboxPolicy = PolicyLevel.CreateAppDomainLevel(); + //AllMembershipCondition sandboxMembershipCondition = new AllMembershipCondition(); + //PermissionSet sandboxPermissionSet = sandboxPolicy.GetNamedPermissionSet("Internet"); + //PolicyStatement sandboxPolicyStatement = new PolicyStatement(sandboxPermissionSet); + //CodeGroup sandboxCodeGroup = new UnionCodeGroup(sandboxMembershipCondition, sandboxPolicyStatement); + //sandboxPolicy.RootCodeGroup = sandboxCodeGroup; + //sandbox.SetAppDomainPolicy(sandboxPolicy); + + m_AppDomains[appDomain] = sandbox; + + m_AppDomains[appDomain].AssemblyResolve += + new ResolveEventHandler( + AssemblyResolver.OnAssemblyResolve); + m_DomainScripts[appDomain] = new List(); } - m_DomainScripts[appDomain].Add(itemID); - - instance = new ScriptInstance(this, part, - itemID, assetID, assembly, - m_AppDomains[appDomain], - part.ParentGroup.RootPart.Name, - item.Name, startParam, postOnRez, - stateSource, m_MaxScriptQueue); - - m_log.DebugFormat("[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}", - part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, part.ParentGroup.RootPart.AbsolutePosition.ToString()); - - if (presence != null) + catch (Exception e) { - ShowScriptSaveResponse(item.OwnerID, - assetID, "Compile successful", true); + m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString()); + m_ScriptErrorMessage += "Exception creating app domain:\n"; + m_ScriptFailCount++; + lock (m_AddingAssemblies) + { + m_AddingAssemblies[assembly]--; + } + return false; } - - instance.AppDomain = appDomain; - instance.LineMap = linemap; - - m_Scripts[itemID] = instance; } + m_DomainScripts[appDomain].Add(itemID); - lock (m_PrimObjects) + instance = new ScriptInstance(this, part, + itemID, assetID, assembly, + m_AppDomains[appDomain], + part.ParentGroup.RootPart.Name, + item.Name, startParam, postOnRez, + stateSource, m_MaxScriptQueue); + + m_log.DebugFormat("[XEngine] Loaded script {0}.{1}, script UUID {2}, prim UUID {3} @ {4}", + part.ParentGroup.RootPart.Name, item.Name, assetID, part.UUID, part.ParentGroup.RootPart.AbsolutePosition.ToString()); + + if (presence != null) { - if (!m_PrimObjects.ContainsKey(localID)) - m_PrimObjects[localID] = new List(); - - if (!m_PrimObjects[localID].Contains(itemID)) - m_PrimObjects[localID].Add(itemID); - + ShowScriptSaveResponse(item.OwnerID, + assetID, "Compile successful", true); } - if (!m_Assemblies.ContainsKey(assetID)) - m_Assemblies[assetID] = assembly; - - lock (m_AddingAssemblies) - { - m_AddingAssemblies[assembly]--; - } - - if (instance!=null) - instance.Init(); + instance.AppDomain = appDomain; + instance.LineMap = linemap; + lockScriptsForWrite(true); + m_Scripts[itemID] = instance; + lockScriptsForWrite(false); } + else + { + lockScriptsForRead(false); + } + lock (m_PrimObjects) + { + if (!m_PrimObjects.ContainsKey(localID)) + m_PrimObjects[localID] = new List(); + + if (!m_PrimObjects[localID].Contains(itemID)) + m_PrimObjects[localID].Add(itemID); + + } + + if (!m_Assemblies.ContainsKey(assetID)) + m_Assemblies[assetID] = assembly; + + lock (m_AddingAssemblies) + { + m_AddingAssemblies[assembly]--; + } + + if (instance!=null) + instance.Init(); + return true; } public void OnRemoveScript(uint localID, UUID itemID) { - lock (m_Scripts) + lockScriptsForRead(true); + // Do we even have it? + if (!m_Scripts.ContainsKey(itemID)) { - // Do we even have it? - if (!m_Scripts.ContainsKey(itemID)) - return; + lockScriptsForRead(false); + return; + } + - IScriptInstance instance=m_Scripts[itemID]; - m_Scripts.Remove(itemID); + IScriptInstance instance=m_Scripts[itemID]; + lockScriptsForRead(false); + lockScriptsForWrite(true); + m_Scripts.Remove(itemID); + lockScriptsForWrite(false); + instance.ClearQueue(); + instance.Stop(0); - instance.ClearQueue(); - instance.Stop(0); + SceneObjectPart part = + m_Scene.GetSceneObjectPart(localID); - SceneObjectPart part = - m_Scene.GetSceneObjectPart(localID); - - if (part != null) - part.RemoveScriptEvents(itemID); + if (part != null) + part.RemoveScriptEvents(itemID); // bool objectRemoved = false; - lock (m_PrimObjects) + lock (m_PrimObjects) + { + // Remove the script from it's prim + if (m_PrimObjects.ContainsKey(localID)) { - // Remove the script from it's prim - if (m_PrimObjects.ContainsKey(localID)) - { - // Remove inventory item record - if (m_PrimObjects[localID].Contains(itemID)) - m_PrimObjects[localID].Remove(itemID); + // Remove inventory item record + if (m_PrimObjects[localID].Contains(itemID)) + m_PrimObjects[localID].Remove(itemID); - // If there are no more scripts, remove prim - if (m_PrimObjects[localID].Count == 0) - { - m_PrimObjects.Remove(localID); + // If there are no more scripts, remove prim + if (m_PrimObjects[localID].Count == 0) + { + m_PrimObjects.Remove(localID); // objectRemoved = true; - } } } - - instance.RemoveState(); - instance.DestroyScriptInstance(); - - m_DomainScripts[instance.AppDomain].Remove(instance.ItemID); - if (m_DomainScripts[instance.AppDomain].Count == 0) - { - m_DomainScripts.Remove(instance.AppDomain); - UnloadAppDomain(instance.AppDomain); - } - - instance = null; - - ObjectRemoved handlerObjectRemoved = OnObjectRemoved; - if (handlerObjectRemoved != null) - handlerObjectRemoved(part.UUID); - - CleanAssemblies(); } + instance.RemoveState(); + instance.DestroyScriptInstance(); + + m_DomainScripts[instance.AppDomain].Remove(instance.ItemID); + if (m_DomainScripts[instance.AppDomain].Count == 0) + { + m_DomainScripts.Remove(instance.AppDomain); + UnloadAppDomain(instance.AppDomain); + } + + instance = null; + + ObjectRemoved handlerObjectRemoved = OnObjectRemoved; + if (handlerObjectRemoved != null) + handlerObjectRemoved(part.UUID); + + CleanAssemblies(); + + ScriptRemoved handlerScriptRemoved = OnScriptRemoved; if (handlerScriptRemoved != null) handlerScriptRemoved(itemID); @@ -1091,12 +1163,14 @@ namespace OpenSim.Region.ScriptEngine.XEngine private IScriptInstance GetInstance(UUID itemID) { IScriptInstance instance; - lock (m_Scripts) + lockScriptsForRead(true); + if (!m_Scripts.ContainsKey(itemID)) { - if (!m_Scripts.ContainsKey(itemID)) - return null; - instance = m_Scripts[itemID]; + lockScriptsForRead(false); + return null; } + instance = m_Scripts[itemID]; + lockScriptsForRead(false); return instance; } @@ -1200,11 +1274,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine { List instances = new List(); - lock (m_Scripts) - { - foreach (IScriptInstance instance in m_Scripts.Values) + lockScriptsForRead(true); + foreach (IScriptInstance instance in m_Scripts.Values) instances.Add(instance); - } + lockScriptsForRead(false); foreach (IScriptInstance i in instances) {