// Constructor
public SyncedProperty(SyncableProperties.Type property, Object initValue, long initTS, string syncID)
{
Property = property;
LastUpdateValue = initValue;
LastUpdateTimeStamp = initTS;
LastUpdateSyncID = syncID;
}
private Object GetPropertyValue(SceneObjectPart part, SyncableProperties.Type property)
{
switch (property)
{
///////////////////////
//SOP properties
///////////////////////
case SyncableProperties.Type.AggregateScriptEvents:
return (int)part.AggregateScriptEvents;
case SyncableProperties.Type.AllowedDrop:
return part.AllowedDrop;
case SyncableProperties.Type.AngularVelocity:
return part.AngularVelocity;
case SyncableProperties.Type.AttachedAvatar:
return part.ParentGroup.AttachedAvatar;
case SyncableProperties.Type.AttachedPos:
return part.AttachedPos;
case SyncableProperties.Type.AttachmentPoint:
return part.ParentGroup.AttachmentPoint;
case SyncableProperties.Type.BaseMask:
return part.BaseMask;
case SyncableProperties.Type.Category:
return part.Category;
case SyncableProperties.Type.ClickAction:
return part.ClickAction;
case SyncableProperties.Type.CollisionSound:
return part.CollisionSound;
case SyncableProperties.Type.CollisionSoundVolume:
return part.CollisionSoundVolume;
case SyncableProperties.Type.Color:
return PropertySerializer.SerializeColor(part.Color);
case SyncableProperties.Type.CreationDate:
return part.CreationDate;
case SyncableProperties.Type.CreatorData:
return part.CreatorData;
case SyncableProperties.Type.CreatorID:
return part.CreatorID;
case SyncableProperties.Type.Description:
return part.Description;
case SyncableProperties.Type.EveryoneMask:
return part.EveryoneMask;
case SyncableProperties.Type.Flags:
return (int)part.Flags;
case SyncableProperties.Type.FolderID:
return part.FolderID;
//Skip SyncableProperties.FullUpdate, which should be handled seperatedly
case SyncableProperties.Type.GroupID:
return part.GroupID;
case SyncableProperties.Type.GroupMask:
return part.GroupMask;
case SyncableProperties.Type.GroupPosition:
return part.GroupPosition;
case SyncableProperties.Type.InventorySerial:
return part.InventorySerial;
case SyncableProperties.Type.IsAttachment:
return part.ParentGroup.IsAttachment;
case SyncableProperties.Type.LastOwnerID:
return part.LastOwnerID;
case SyncableProperties.Type.LinkNum:
return part.LinkNum;
case SyncableProperties.Type.LocalId:
return part.LocalId;
case SyncableProperties.Type.LocalFlags:
return (int)part.LocalFlags;
case SyncableProperties.Type.Material:
return part.Material;
case SyncableProperties.Type.MediaUrl:
return part.MediaUrl;
case SyncableProperties.Type.Name:
return part.Name;
case SyncableProperties.Type.NextOwnerMask:
return part.NextOwnerMask;
case SyncableProperties.Type.ObjectSaleType:
return part.ObjectSaleType;
case SyncableProperties.Type.OffsetPosition:
return part.OffsetPosition;
case SyncableProperties.Type.OwnerID:
return part.OwnerID;
case SyncableProperties.Type.OwnerMask:
return part.OwnerMask;
case SyncableProperties.Type.OwnershipCost:
return part.OwnershipCost;
case SyncableProperties.Type.ParticleSystem:
//byte[], return a cloned copy
return part.ParticleSystem;//.Clone()
case SyncableProperties.Type.PassTouches:
return part.PassTouches;
case SyncableProperties.Type.RotationOffset:
return part.RotationOffset;
case SyncableProperties.Type.SalePrice:
return part.SalePrice;
case SyncableProperties.Type.Scale:
return part.Scale;
case SyncableProperties.Type.ScriptAccessPin:
return part.ScriptAccessPin;
case SyncableProperties.Type.Shape:
return PropertySerializer.SerializeShape(part.Shape);
case SyncableProperties.Type.SitName:
return part.SitName;
case SyncableProperties.Type.SitTargetOrientation:
return part.SitTargetOrientation;
case SyncableProperties.Type.SitTargetOrientationLL:
return part.SitTargetOrientationLL;
case SyncableProperties.Type.SitTargetPosition:
return part.SitTargetPosition;
case SyncableProperties.Type.SitTargetPositionLL:
return part.SitTargetPositionLL;
case SyncableProperties.Type.SOP_Acceleration:
return part.Acceleration;
case SyncableProperties.Type.Sound:
return part.Sound;
case SyncableProperties.Type.TaskInventory:
return PropertySerializer.SerializeTaskInventory(part.TaskInventory, Scene);
case SyncableProperties.Type.Text:
return part.Text;
case SyncableProperties.Type.TextureAnimation:
return part.TextureAnimation;//.Clone();
case SyncableProperties.Type.TouchName:
return part.TouchName;
/*
case SyncableProperties.Type.UpdateFlag:
return part.UpdateFlag;
*/
case SyncableProperties.Type.Velocity:
return part.Velocity;
case SyncableProperties.Type.VolumeDetectActive:
return part.VolumeDetectActive;
///////////////////////
//PhysActor properties
///////////////////////
case SyncableProperties.Type.Buoyancy:
if (part.PhysActor == null)
return null;
return part.PhysActor.Buoyancy;
case SyncableProperties.Type.Flying:
if (part.PhysActor == null)
return null;
return part.PhysActor.Flying;
case SyncableProperties.Type.Force:
if (part.PhysActor == null)
return null;
return part.PhysActor.Force;
case SyncableProperties.Type.IsColliding:
if (part.PhysActor == null)
return null;
return part.PhysActor.IsColliding;
case SyncableProperties.Type.CollidingGround:
if (part.PhysActor == null)
return null;
return part.PhysActor.CollidingGround;
case SyncableProperties.Type.Kinematic:
if (part.PhysActor == null)
return null;
return part.PhysActor.Kinematic;
case SyncableProperties.Type.Orientation:
if (part.PhysActor == null)
return null;
return part.PhysActor.Orientation;
case SyncableProperties.Type.PA_Acceleration:
if (part.PhysActor == null)
return null;
return part.PhysActor.Acceleration;
case SyncableProperties.Type.PA_Velocity:
if (part.PhysActor == null)
return null;
return part.PhysActor.Velocity;
case SyncableProperties.Type.PA_TargetVelocity:
if (part.PhysActor == null)
return null;
return part.PhysActor.TargetVelocity;
case SyncableProperties.Type.Position:
if (part.PhysActor == null)
return null;
return part.PhysActor.Position;
case SyncableProperties.Type.RotationalVelocity:
if (part.PhysActor == null)
return null;
return part.PhysActor.RotationalVelocity;
case SyncableProperties.Type.Size:
if (part.PhysActor == null)
return null;
return part.PhysActor.Size;
case SyncableProperties.Type.Torque:
if (part.PhysActor == null)
return null;
return part.PhysActor.Torque;
///////////////////////
//SOG properties
///////////////////////
case SyncableProperties.Type.AbsolutePosition:
return part.ParentGroup.AbsolutePosition;
case SyncableProperties.Type.IsSelected:
return part.ParentGroup.IsSelected;
}
//DebugLog.ErrorFormat("{0}: GetPropertyValue could not get property {1} from {2}", LogHeader, property.ToString(), part.UUID);
return null;
}
/// <summary>
/// Compare the value (not "reference") of the given property.
/// Assumption: the caller has already checked if PhysActor exists
/// if there are physics properties updated.
/// If the value maintained here is different from that in SOP data,
/// synchronize the two:
/// (1) if the value here has a timestamp newer than lastUpdateByLocalTS
/// (e.g. due to clock drifts among different sync nodes, a remote
/// write might have a newer timestamp than the local write),
/// overwrite the SOP's property with the value here (effectively
/// disvalidate the local write operation that just happened).
/// (2) otherwise, copy SOP's data and update timestamp and syncID
/// as indicated by "lastUpdateByLocalTS" and "syncID".
/// </summary>
/// <param name="part"></param>
/// <param name="property"></param>
/// <param name="lastUpdateByLocalTS"></param>
/// <param name="syncID"></param>
/// <returns>Return true if the property's value maintained in this SyncInfoPrim is replaced by SOP's data.</returns>
private bool CompareValue_UpdateByLocal(SceneObjectPart part, SyncableProperties.Type property, long lastUpdateByLocalTS, string syncID, out bool resetSceneValue)
{
resetSceneValue = false;
//DebugLog.WarnFormat("[SYNC INFO PRIM] CompareValue_UpdateByLocal: Updating property {0} on part {1}", property.ToString(), part.UUID);
SyncedProperty syncedProperty;
CurrentlySyncedProperties.TryGetValue(property, out syncedProperty);
// If the property does not exist yet then add it.
if (syncedProperty == null)
{
Object initValue = GetPropertyValue(part, property);
SyncedProperty syncInfo = new SyncedProperty(property, initValue, lastUpdateByLocalTS, syncID);
CurrentlySyncedProperties.Add(property, syncInfo);
return true;
}
// First, check if the value maintained here is different from that in SOP's.
// If different, next check if the timestamp in SyncInfo is newer than lastUpdateByLocalTS;
// if so (although ideally should not happen, but due to things likc clock not so perfectly
// sync'ed, it might happen), overwrite SOP's value with what's maintained
// in SyncInfo; otherwise, copy SOP's data to SyncInfo.
switch (property)
{
case SyncableProperties.Type.GroupPosition:
return CompareAndUpdateSOPGroupPositionByLocal(part, lastUpdateByLocalTS, syncID);
default:
Object value = GetPropertyValue(part, property);
// If both null, no update needed
if (syncedProperty.LastUpdateValue == null && value == null)
return false;
// If one is null and the other is not, or if they are not equal, the property was changed.
if ((value == null && syncedProperty.LastUpdateValue != null) ||
(value != null && syncedProperty.LastUpdateValue == null) ||
(!value.Equals(syncedProperty.LastUpdateValue)))
{
if (value != null)
{
switch (property)
{
case SyncableProperties.Type.Velocity:
case SyncableProperties.Type.PA_Velocity:
case SyncableProperties.Type.PA_TargetVelocity:
case SyncableProperties.Type.RotationalVelocity:
case SyncableProperties.Type.AngularVelocity:
{
Vector3 partVal = (Vector3)value;
Vector3 lastVal = (Vector3)syncedProperty.LastUpdateValue;
// If velocity difference is small but not zero, don't update
if (partVal.ApproxEquals(lastVal, VELOCITY_TOLERANCE) && !partVal.Equals(Vector3.Zero))
return false;
break;
}
case SyncableProperties.Type.RotationOffset:
case SyncableProperties.Type.Orientation:
{
Quaternion partVal = (Quaternion)value;
Quaternion lastVal = (Quaternion)syncedProperty.LastUpdateValue;
if (partVal.ApproxEquals(lastVal, ROTATION_TOLERANCE))
return false;
break;
}
case SyncableProperties.Type.OffsetPosition:
case SyncableProperties.Type.AbsolutePosition:
case SyncableProperties.Type.Position:
case SyncableProperties.Type.GroupPosition:
{
Vector3 partVal = (Vector3)value;
Vector3 lastVal = (Vector3)syncedProperty.LastUpdateValue;
if (partVal.ApproxEquals(lastVal, POSITION_TOLERANCE))
return false;
break;
}
}
}
if (property == SyncableProperties.Type.Shape)
{
//DebugLog.WarnFormat("[SYNC INFO PRIM]: SHAPES DIFFER {0} {1}", (string)value, (string)syncedProperty.LastUpdateValue);
}
// DebugLog.WarnFormat("[SYNC INFO PRIM] CompareValue_UpdateByLocal (property={0}): value != syncedProperty.LastUpdateValue", property.ToString());
if (lastUpdateByLocalTS >= syncedProperty.LastUpdateTimeStamp)
{
// DebugLog.WarnFormat("[SYNC INFO PRIM] CompareValue_UpdateByLocal (property={0}): TS >= lastTS (updating SyncInfo)", property.ToString());
syncedProperty.UpdateSyncInfoByLocal(lastUpdateByLocalTS, syncID, value);
// Updating either absolute position or position also requires checking for updates to group position
if (property == SyncableProperties.Type.AbsolutePosition || property == SyncableProperties.Type.Position)
{
CompareValue_UpdateByLocal(part, SyncableProperties.Type.GroupPosition, lastUpdateByLocalTS, syncID, out resetSceneValue);
resetSceneValue = false;
}
return true;
}
// DebugLog.WarnFormat("[SYNC INFO PRIM] CompareValue_UpdateByLocal (property={0}): TS < lastTS (updating SOP)", property.ToString());
//We'll reset the property value outside of CompareValue_UpdateByLocal
//SetPropertyValue(property);
resetSceneValue = true;
}
break;
}
return false;
}
public override Object GetPropertyValue(SyncableProperties.Type property)
{
return GetPropertyValue((SceneObjectPart)SceneThing, property);
}
public abstract Object GetPropertyValue(SyncableProperties.Type property);
private void SetPropertyValue(ScenePresence sp, SyncableProperties.Type property, SyncedProperty pSyncInfo)
{
if (sp == null || pSyncInfo == null) return;
Object pValue = pSyncInfo.LastUpdateValue;
switch (property)
{
case SyncableProperties.Type.LocalId:
sp.LocalId = (uint)pValue;
break;
case SyncableProperties.Type.AbsolutePosition:
sp.AbsolutePosition = (Vector3)pValue;
break;
case SyncableProperties.Type.AgentCircuitData:
DebugLog.WarnFormat("{0}: Received updated AgentCircuitData. Not implemented", LogHeader);
break;
case SyncableProperties.Type.ParentId:
uint localID = (uint)pValue;
if (localID == 0)
{
// DebugLog.DebugFormat("{0}: SetPropertyValue:ParentID. Standup. Input={1}", LogHeader, localID); // DEBUG DEBUG
sp.StandUp();
}
else
{
SceneObjectPart parentPart = Scene.GetSceneObjectPart(localID);
if (parentPart != null) // TODO ??
{
sp.HandleAgentRequestSit(sp.ControllingClient, sp.ControllingClient.AgentId, parentPart.UUID, Vector3.Zero);
// DebugLog.DebugFormat("{0}: SetPropertyValue:ParentID. SitRequest. Input={1},sp={2},newParentID={3}",
// LogHeader, localID, (string)(sp == null ? "NULL" : sp.Name), sp.ParentID); // DEBUG DEBUG
}
}
//sp.ParentID = (uint)pValue;
break;
case SyncableProperties.Type.AgentControlFlags:
sp.AgentControlFlags = (uint)pValue;
break;
case SyncableProperties.Type.AllowMovement:
sp.AllowMovement = (bool)pValue;
break;
case SyncableProperties.Type.AvatarAppearance:
sp.Appearance.Unpack((OSDMap)pValue);
sp.SendAppearanceToAllOtherAgents();
DebugLog.DebugFormat("{0} Received updated AvatarAppearance for uuid {1}.", LogHeader, sp.UUID);
break;
case SyncableProperties.Type.Animations:
UpdateAvatarAnimations(sp, (OSDArray)pValue);
break;
case SyncableProperties.Type.Rotation:
sp.Rotation = (Quaternion)pValue;
break;
case SyncableProperties.Type.PA_Velocity:
if (sp.PhysicsActor != null)
sp.PhysicsActor.Velocity = (Vector3)pValue;
break;
case SyncableProperties.Type.RealRegion:
////// NOP //////
break;
case SyncableProperties.Type.PA_TargetVelocity:
if(sp.PhysicsActor != null)
sp.PhysicsActor.TargetVelocity = (Vector3)pValue;
break;
case SyncableProperties.Type.Flying:
sp.Flying = (bool)pValue;
break;
case SyncableProperties.Type.PresenceType:
DebugLog.WarnFormat("{0} Received updated PresenceType for uuid {1}. Not implemented", LogHeader, sp.UUID);
break;
case SyncableProperties.Type.IsColliding:
if(sp.PhysicsActor != null)
sp.IsColliding = (bool)pValue;
break;
}
// When presence values are changed, we tell the simulator with an event
GenerateAgentUpdated(sp);
}
// Gets the value out of the SP in local scene and returns it as an object
private Object GetPropertyValue(ScenePresence sp, SyncableProperties.Type property)
{
if (sp == null)
return null;
switch (property)
{
case SyncableProperties.Type.LocalId:
return sp.LocalId;
case SyncableProperties.Type.AbsolutePosition:
return sp.AbsolutePosition;
case SyncableProperties.Type.AgentCircuitData:
return Scene.AuthenticateHandler.GetAgentCircuitData(sp.ControllingClient.CircuitCode).PackAgentCircuitData();
case SyncableProperties.Type.ParentId:
return sp.ParentID;
case SyncableProperties.Type.AgentControlFlags:
return sp.AgentControlFlags;
case SyncableProperties.Type.AllowMovement:
return sp.AllowMovement;
case SyncableProperties.Type.Animations:
return sp.Animator.Animations.ToOSDArray();
case SyncableProperties.Type.AvatarAppearance:
return sp.Appearance.Pack();
case SyncableProperties.Type.Rotation:
return sp.Rotation;
case SyncableProperties.Type.PA_Velocity:
if (sp.PhysicsActor == null)
return Vector3.Zero;
return sp.PhysicsActor.Velocity;
case SyncableProperties.Type.RealRegion:
// Always just the local scene name the avatar is in when requested locally.
return sp.Scene.Name;
case SyncableProperties.Type.PA_TargetVelocity:
if (sp.PhysicsActor == null)
return Vector3.Zero;
return sp.PhysicsActor.TargetVelocity;
case SyncableProperties.Type.Flying:
return sp.Flying;
case SyncableProperties.Type.PresenceType:
return (int)sp.PresenceType;
case SyncableProperties.Type.IsColliding:
return sp.IsColliding;
}
//DebugLog.ErrorFormat("{0}: GetPropertyValue could not get property {1} from {2}", LogHeader, property.ToString(), sp.UUID);
return null;
}
/// <summary>
/// Compare the value (not "reference") of the given property.
/// Assumption: the caller has already checked if PhysActor exists
/// if there are physics properties updated.
/// If the value maintained here is different from that in SP data,
/// synchronize the two:
/// (1) if the cached value has a timestamp newer than lastUpdateByLocalTS
/// overwrite the SP's property with the cached value (effectively
/// undoing the local write operation that just happened).
/// (2) otherwise, copy SP's data and update timestamp and syncID
/// as indicated by "lastUpdateByLocalTS" and "syncID".
/// </summary>
/// <param name="sp"></param>
/// <param name="property"></param>
/// <param name="lastUpdateByLocalTS"></param>
/// <param name="syncID"></param>
/// <returns>Return true if the property's value maintained in this
/// RegionSyncModule is replaced by SP's data.</returns>
private bool CompareValue_UpdateByLocal(ScenePresence sp, SyncableProperties.Type property, long lastUpdateByLocalTS, string syncID)
{
//DebugLog.WarnFormat("[SYNC INFO PRESENCE] CompareValue_UpdateByLocal: Updating property {0} on sp {1}", property.ToString(), sp.UUID);
// Check to see if this property is in the sync cache for this object.
// If not, add it and initialize value to value in ScenePresence.
bool ret = false;
SyncedProperty syncedProperty;
CurrentlySyncedProperties.TryGetValue(property, out syncedProperty);
// If synced property is not in cache, add it now
if (syncedProperty == null)
{
Object initValue = GetPropertyValue(sp, property);
if (initValue != null)
{
CurrentlySyncedProperties.Add(property, new SyncedProperty(property, initValue, lastUpdateByLocalTS, syncID));
ret = true;
}
return ret;
}
// First, check if the value maintained here is different from that in SP's.
// If different, next check if the timestamp in SyncInfo is newer than lastUpdateByLocalTS;
// if so (although ideally should not happen, but due to things likc clock not so perfectly
// sync'ed, it might happen), overwrite SP's value with what's maintained
// in SyncInfo; otherwise, copy SP's data to SyncInfo.
Object value = GetPropertyValue(sp, property);
// If both null, no update needed
if (syncedProperty.LastUpdateValue == null && value == null)
return false;
switch (property)
{
default:
// If one is null and the other is not, or if the references are different, the property was changed.
// This will perform a value comparison for strings in C#. We could use String.Clone instead for string properties.
if ((value == null && syncedProperty.LastUpdateValue != null) ||
(value != null && syncedProperty.LastUpdateValue == null) ||
(!value.Equals(syncedProperty.LastUpdateValue)))
{
if (value != null)
{
// Some values, even if they are not 'equal', might be close enough to be equal.
// Note that the 'Equals()' above will most always return 'false' for lists and OSDMaps
// since they are probably not the same object.
// Returning a 'false' here means the values don't need any updating (they are equal enough).
switch (property)
{
case SyncableProperties.Type.AvatarAppearance:
String stringValue = OSDParser.SerializeJsonString((OSDMap)value);
String lastStringValue = OSDParser.SerializeJsonString((OSDMap)syncedProperty.LastUpdateValue);
if (stringValue == lastStringValue)
return false;
break;
case SyncableProperties.Type.Animations:
if (syncedProperty.LastUpdateValue != null)
{
AnimationSet lastAnimations = new AnimationSet((OSDArray)syncedProperty.LastUpdateValue);
// Get the home region for this presence (the client manager the presence is connected to).
string cachedRealRegionName = (string)(CurrentlySyncedProperties[SyncableProperties.Type.RealRegion].LastUpdateValue);
if (cachedRealRegionName != Scene.Name && sp.Animator.Animations.ToArray().Length == 0)
{
// If this is not the originating region for this presence and there is no additional
// animations being added, this simulator does not change the animation.
// THIS IS A HORRIBLE KLUDGE. FIGURE OUT THE REAL SOLUTION!!
// The problem is that animations are changed by every simulator (setting default
// sit and stand when parentID changes) and the updates conflict/override the real
// settings (like a scripted sit animation).
// DebugLog.DebugFormat("{0} CompareValue_UpdateByLocal. Not home sim or no anim change. spID={1}, homeSim={2}, thisSim={3}, anims={4}",
// LogHeader, sp.LocalId, cachedRealRegionName, Scene.Name, sp.Animator.Animations.ToArray().Length); // DEBUG DEBUG
return false;
}
if (lastAnimations.Equals(sp.Animator.Animations))
{
// DebugLog.DebugFormat("{0} CompareValue_UpdateByLocal. Equal anims. spID={1}, sp.Anim={2}, lastAnim={3}",
// LogHeader, sp.LocalId, sp.Animator.Animations, lastAnimations); // DEBUG DEBUG
return false;
}
else
{
// If locally storing a new value of the animation, don't check for the time.
// DebugLog.DebugFormat("{0} CompareValue_UpdateByLocal. Not equal anims. spID={1}, sp.Anim={2}, lastAnim={3}",
// LogHeader, sp.LocalId, sp.Animator.Animations, lastAnimations); // DEBUG DEBUG
syncedProperty.UpdateSyncInfoByLocal(lastUpdateByLocalTS, syncID, value);
return true;
}
}
break;
case SyncableProperties.Type.Velocity:
case SyncableProperties.Type.PA_Velocity:
case SyncableProperties.Type.PA_TargetVelocity:
case SyncableProperties.Type.RotationalVelocity:
case SyncableProperties.Type.AngularVelocity:
{
Vector3 partVal = (Vector3)value;
Vector3 lastVal = (Vector3)syncedProperty.LastUpdateValue;
// If velocity difference is small but not zero, don't update
if (partVal.ApproxEquals(lastVal, VELOCITY_TOLERANCE) && !partVal.Equals(Vector3.Zero))
return false;
break;
}
case SyncableProperties.Type.RotationOffset:
case SyncableProperties.Type.Orientation:
{
Quaternion partVal = (Quaternion)value;
Quaternion lastVal = (Quaternion)syncedProperty.LastUpdateValue;
if (partVal.ApproxEquals(lastVal, ROTATION_TOLERANCE))
return false;
break;
}
case SyncableProperties.Type.OffsetPosition:
case SyncableProperties.Type.AbsolutePosition:
case SyncableProperties.Type.Position:
case SyncableProperties.Type.GroupPosition:
{
Vector3 partVal = (Vector3)value;
Vector3 lastVal = (Vector3)syncedProperty.LastUpdateValue;
if (partVal.ApproxEquals(lastVal, POSITION_TOLERANCE))
return false;
break;
}
}
}
// If we get here, the values are not equal and we need to update the cached value if the
// new value is timestamp newer.
if (lastUpdateByLocalTS >= syncedProperty.LastUpdateTimeStamp)
{
// DebugLog.DebugFormat("{0} CompareValue_UpdateByLocal (property={1}): TS >= lastTS (updating SyncInfo)", LogHeader, property);
syncedProperty.UpdateSyncInfoByLocal(lastUpdateByLocalTS, syncID, value);
return true;
}
}
break;
}
return false;
}