Merge branch 'master' into careminster

Conflicts:
	OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
	OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs
	OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs

OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs

@@ -1830,6 +1830,8 @@ namespace OpenSim.Framework.Servers.HttpServer
             HTTPDRunning = false;
             try
             {
+//                m_PollServiceManager.Stop();
+
                 m_httpListener2.ExceptionThrown -= httpServerException;
                 //m_httpListener2.DisconnectHandler = null;
 

OpenSim/Framework/Servers/HttpServer/PollServiceRequestManager.cs

@@ -50,19 +50,26 @@ namespace OpenSim.Framework.Servers.HttpServer
         private uint m_WorkerThreadCount = 0;
         private Thread[] m_workerThreads;
         private PollServiceWorkerThread[] m_PollServiceWorkerThreads;
-        private bool m_running = true;
+        private volatile bool m_running = true;
+        private int m_pollTimeout;
 
         public PollServiceRequestManager(BaseHttpServer pSrv, uint pWorkerThreadCount, int pTimeout)
         {
             m_server = pSrv;
             m_WorkerThreadCount = pWorkerThreadCount;
+            m_pollTimeout = pTimeout;
+        }
+
+        public void Start()
+        {
+            m_running = true;
             m_workerThreads = new Thread[m_WorkerThreadCount];
             m_PollServiceWorkerThreads = new PollServiceWorkerThread[m_WorkerThreadCount];
 
             //startup worker threads
             for (uint i = 0; i < m_WorkerThreadCount; i++)
             {
-                m_PollServiceWorkerThreads[i] = new PollServiceWorkerThread(m_server, pTimeout);
+                m_PollServiceWorkerThreads[i] = new PollServiceWorkerThread(m_server, m_pollTimeout);
                 m_PollServiceWorkerThreads[i].ReQueue += ReQueueEvent;
 
                 m_workerThreads[i]
@@ -141,8 +148,10 @@ namespace OpenSim.Framework.Servers.HttpServer
             
         }
 
-        ~PollServiceRequestManager()
+        public void Stop()
         {
+            m_running = false;
+
             foreach (object o in m_requests)
             {
                 PollServiceHttpRequest req = (PollServiceHttpRequest) o;
@@ -157,7 +166,6 @@ namespace OpenSim.Framework.Servers.HttpServer
             {
                 t.Abort();
             }
-            m_running = false;
         }
     }
 }

OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs

@@ -87,13 +87,24 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             return false;
         }
 
-        public bool Remove(UUID animID)
+        /// <summary>
+        /// Remove the specified animation
+        /// </summary>
+        /// <param name='animID'></param>
+        /// <param name='allowNoDefault'>
+        /// If true, then the default animation can be entirely removed. 
+        /// If false, then removing the default animation will reset it to the simulator default (currently STAND).
+        /// </param>
+        public bool Remove(UUID animID, bool allowNoDefault)
         {
             lock (m_animations)
             {
                 if (m_defaultAnimation.AnimID == animID)
                 {
-                    m_defaultAnimation = new OpenSim.Framework.Animation(UUID.Zero, 1, UUID.Zero);
+                    if (allowNoDefault)
+                        m_defaultAnimation = new OpenSim.Framework.Animation(UUID.Zero, 1, UUID.Zero);
+                    else
+                        ResetDefaultAnimation();
                 }
                 else if (HasAnimation(animID))
                 {

OpenSim/Region/Framework/Scenes/Animation/ScenePresenceAnimator.cs

@@ -87,6 +87,10 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                 return;
 
             //            m_log.DebugFormat("[SCENE PRESENCE ANIMATOR]: Adding animation {0} for {1}", animID, m_scenePresence.Name);
+            if (m_scenePresence.Scene.DebugAnimations)
+                m_log.DebugFormat(
+                    "[SCENE PRESENCE ANIMATOR]: Adding animation {0} {1} for {2}", 
+                    GetAnimName(animID), animID, m_scenePresence.Name);
 
             if (m_animations.Add(animID, m_scenePresence.ControllingClient.NextAnimationSequenceNumber, objectID))
                 SendAnimPack();
@@ -109,14 +113,25 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             AddAnimation(animID, objectID);
         }
 
-        public void RemoveAnimation(UUID animID)
+        /// <summary>
+        /// Remove the specified animation
+        /// </summary>
+        /// <param name='animID'></param>
+        /// <param name='allowNoDefault'>
+        /// If true, then the default animation can be entirely removed. 
+        /// If false, then removing the default animation will reset it to the simulator default (currently STAND).
+        /// </param>
+        public void RemoveAnimation(UUID animID, bool allowNoDefault)
         {
             if (m_scenePresence.IsChildAgent)
                 return;
 
-//            m_log.DebugFormat("[SCENE PRESENCE ANIMATOR]: Removing animation {0} for {1}", animID, m_scenePresence.Name);
+            if (m_scenePresence.Scene.DebugAnimations)
+                m_log.DebugFormat(
+                    "[SCENE PRESENCE ANIMATOR]: Removing animation {0} {1} for {2}", 
+                    GetAnimName(animID), animID, m_scenePresence.Name);
 
-            if (m_animations.Remove(animID))
+            if (m_animations.Remove(animID, allowNoDefault))
                 SendAnimPack();
         }
 
@@ -130,7 +145,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
                 if (addRemove)
                     m_animations.Add(animID, m_scenePresence.ControllingClient.NextAnimationSequenceNumber, UUID.Zero);
                 else
-                    m_animations.Remove(animID);
+                    m_animations.Remove(animID, true);
             }
             if(sendPack)
                 SendAnimPack();
@@ -148,14 +163,15 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             if (animID == UUID.Zero)
                 return;
 
-            RemoveAnimation(animID);
+            RemoveAnimation(animID, true);
         }
 
         public void ResetAnimations()
         {
-//            m_log.DebugFormat(
+            if (m_scenePresence.Scene.DebugAnimations)
-//                "[SCENE PRESENCE ANIMATOR]: Resetting animations for {0} in {1}",
+                m_log.DebugFormat(
-//                m_scenePresence.Name, m_scenePresence.Scene.RegionInfo.RegionName);
+                    "[SCENE PRESENCE ANIMATOR]: Resetting animations for {0} in {1}",
+                    m_scenePresence.Name, m_scenePresence.Scene.RegionInfo.RegionName);
 
             m_animations.Clear();
         }
@@ -566,5 +582,21 @@ namespace OpenSim.Region.Framework.Scenes.Animation
 
             SendAnimPack(animIDs, sequenceNums, objectIDs);
         }
+
+        public string GetAnimName(UUID animId)
+        {
+            string animName;
+
+            if (!DefaultAvatarAnimations.AnimsNames.TryGetValue(animId, out animName))
+            {
+                AssetMetadata amd = m_scenePresence.Scene.AssetService.GetMetadata(animId.ToString());
+                if (amd != null)
+                    animName = amd.Name;
+                else
+                    animName = "Unknown";
+            }
+
+            return animName;
+        }
     }
 }

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -67,6 +67,11 @@ namespace OpenSim.Region.Framework.Scenes
 
         public bool EmergencyMonitoring = false;
 
+        /// <summary>
+        /// Show debug information about animations.
+        /// </summary>
+        public bool DebugAnimations { get; set; }
+
         /// <summary>
         /// Show debug information about teleports.
         /// </summary>

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -2435,7 +2435,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void HandleStopAnim(IClientAPI remoteClient, UUID animID)
         {
-            Animator.RemoveAnimation(animID);
+            Animator.RemoveAnimation(animID, false);
         }
 
         public void avnHandleChangeAnim(UUID animID, bool addRemove,bool sendPack)

OpenSim/Region/OptionalModules/Avatar/Animations/AnimationsCommandModule.cs

@@ -161,12 +161,13 @@ namespace OpenSim.Region.OptionalModules.Avatar.Animations
             UUID defaultAnimId = anims.DefaultAnimation.AnimID;
             cdl.AddRow(
                 "Default anim", 
-                string.Format("{0}, {1}", defaultAnimId, GetAnimName(sp.Scene.AssetService, defaultAnimId)));
+                string.Format("{0}, {1}", defaultAnimId, sp.Animator.GetAnimName(defaultAnimId)));
 
             UUID implicitDefaultAnimId = anims.ImplicitDefaultAnimation.AnimID;
             cdl.AddRow(
                 "Implicit default anim", 
-                string.Format("{0}, {1}", implicitDefaultAnimId, GetAnimName(sp.Scene.AssetService, implicitDefaultAnimId)));
+                string.Format("{0}, {1}", 
+                    implicitDefaultAnimId, sp.Animator.GetAnimName(implicitDefaultAnimId)));
 
             cdl.AddToStringBuilder(sb);
 
@@ -185,7 +186,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Animations
             for (int i = 0; i < animIds.Length; i++)
             {
                 UUID animId = animIds[i];
-                string animName = GetAnimName(sp.Scene.AssetService, animId);
+                string animName = sp.Animator.GetAnimName(animId);
                 int seq = sequenceNumbers[i];
                 UUID objectId = objectIds[i];
 
@@ -195,21 +196,5 @@ namespace OpenSim.Region.OptionalModules.Avatar.Animations
             cdt.AddToStringBuilder(sb);
             sb.Append("\n");
         }
-
-        private string GetAnimName(IAssetService assetService, UUID animId)
-        {
-            string animName;
-
-            if (!DefaultAvatarAnimations.AnimsNames.TryGetValue(animId, out animName))
-            {
-                AssetMetadata amd = assetService.GetMetadata(animId.ToString());
-                if (amd != null)
-                    animName = amd.Name;
-                else
-                    animName = "Unknown";
-            }
-
-            return animName;
-        }
     }
 }

OpenSim/Region/OptionalModules/World/SceneCommands/SceneCommandsModule.cs

@@ -94,6 +94,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
                 "debug scene get",
                 "List current scene options.",
                 "If active     is false then main scene update and maintenance loops are suspended.\n"
+                    + "If animations is true  then extra animations debug information is logged.\n"
                     + "If collisions is false then collisions with other objects are turned off.\n"
                     + "If pbackup    is false then periodic scene backup is turned off.\n"
                     + "If physics    is false then all physics objects are non-physical.\n"
@@ -107,6 +108,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
                 "debug scene set active|collisions|pbackup|physics|scripting|teleport|updates true|false",
                 "Turn on scene debugging options.",
                 "If active     is false then main scene update and maintenance loops are suspended.\n"
+                    + "If animations is true  then extra animations debug information is logged.\n"
                     + "If collisions is false then collisions with other objects are turned off.\n"
                     + "If pbackup    is false then periodic scene backup is turned off.\n"
                     + "If physics    is false then all physics objects are non-physical.\n"
@@ -120,10 +122,10 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
         {
             if (args.Length == 3)
             {
-                if (MainConsole.Instance.ConsoleScene == null)
+                if (MainConsole.Instance.ConsoleScene != m_scene && MainConsole.Instance.ConsoleScene != null)
-                    MainConsole.Instance.Output("Please use 'change region <regioname>' first");
+                    return;
-                else
+
-                    OutputSceneDebugOptions();
+                OutputSceneDebugOptions();
             }
             else
             {
@@ -135,12 +137,14 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
         {
             ConsoleDisplayList cdl = new ConsoleDisplayList();
             cdl.AddRow("active", m_scene.Active);
+            cdl.AddRow("animations", m_scene.DebugAnimations);
             cdl.AddRow("pbackup", m_scene.PeriodicBackup);
             cdl.AddRow("physics", m_scene.PhysicsEnabled);
             cdl.AddRow("scripting", m_scene.ScriptsEnabled);
             cdl.AddRow("teleport", m_scene.DebugTeleporting);
             cdl.AddRow("updates", m_scene.DebugUpdates);
 
+            MainConsole.Instance.OutputFormat("Scene {0} options:", m_scene.Name);
             MainConsole.Instance.Output(cdl.ToString());
         }
 
@@ -148,18 +152,14 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
         {
             if (args.Length == 5)
             {
-                if (MainConsole.Instance.ConsoleScene == null)
+                if (MainConsole.Instance.ConsoleScene != m_scene && MainConsole.Instance.ConsoleScene != null)
-                {
+                    return;
-                    MainConsole.Instance.Output("Please use 'change region <regioname>' first");
-                }
-                else
-                {
-                    string key = args[3];
-                    string value = args[4];
-                    SetSceneDebugOptions(new Dictionary<string, string>() { { key, value } });
 
-                    MainConsole.Instance.OutputFormat("Set debug scene {0} = {1}", key, value);
+                string key = args[3];
-                }
+                string value = args[4];
+                SetSceneDebugOptions(new Dictionary<string, string>() { { key, value } });
+
+                MainConsole.Instance.OutputFormat("Set {0} debug scene {1} = {2}", m_scene.Name, key, value);
             }
             else
             {
@@ -178,6 +178,14 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
                     m_scene.Active = active;
             }
 
+            if (options.ContainsKey("animations"))
+            {
+                bool active;
+
+                if (bool.TryParse(options["animations"], out active))
+                    m_scene.DebugAnimations = active;
+            }
+
             if (options.ContainsKey("pbackup"))
             {
                 bool active;

OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs

@@ -853,7 +853,14 @@ public sealed class BSCharacter : BSPhysObject
     {
         _position = entprop.Position;
         _orientation = entprop.Rotation;
-        _velocity = entprop.Velocity;
+
+        // Smooth velocity. OpenSimulator is very sensitive to changes in velocity of the avatar
+        //    and will send agent updates to the clients if velocity changes by more than
+        //    0.001m/s. Bullet introduces a lot of jitter in the velocity which causes many
+        //    extra updates.
+        if (!entprop.Velocity.ApproxEquals(_velocity, 0.1f))
+            _velocity = entprop.Velocity;
+
         _acceleration = entprop.Acceleration;
         _rotationalVelocity = entprop.RotationalVelocity;
 

OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs

@@ -141,7 +141,7 @@ public abstract class BSPhysObject : PhysicsActor
 
     // It can be confusing for an actor to know if it should move or update an object
     //    depeneding on the setting of 'selected', 'physical, ...
-    // This flag is the true test -- if true, the object is being acted on in the physical world
+    // This flag is the true test -- if true, the object is being acted on in the physical world
     public abstract bool IsPhysicallyActive { get; }
 
     // Materialness

OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs

@@ -502,6 +502,12 @@ public sealed class BSPrim : BSPhysObject
                 RegisterPreStepAction("BSPrim.setForce", LocalID,
                     delegate(float timeStep)
                     {
+                        if (!IsPhysicallyActive)
+                        {
+                            UnRegisterPreStepAction("BSPrim.setForce", LocalID);
+                            return;
+                        }
+
                         DetailLog("{0},BSPrim.setForce,preStep,force={1}", LocalID, _force);
                         if (PhysBody.HasPhysicalBody)
                         {
@@ -627,6 +633,12 @@ public sealed class BSPrim : BSPhysObject
                 RegisterPreStepAction("BSPrim.setTorque", LocalID,
                     delegate(float timeStep)
                     {
+                        if (!IsPhysicallyActive)
+                        {
+                            UnRegisterPreStepAction("BSPrim.setTorque", LocalID);
+                            return;
+                        }
+
                         if (PhysBody.HasPhysicalBody)
                             AddAngularForce(_torque, false, true);
                     }
@@ -1061,6 +1073,12 @@ public sealed class BSPrim : BSPhysObject
 
                 RegisterPreStepAction("BSPrim.PIDTarget", LocalID, delegate(float timeStep)
                 {
+                    if (!IsPhysicallyActive)
+                    {
+                        UnRegisterPreStepAction("BSPrim.PIDTarget", LocalID);
+                        return;
+                    }
+
                     OMV.Vector3 origPosition = RawPosition;     // DEBUG DEBUG (for printout below)
 
                     // 'movePosition' is where we'd like the prim to be at this moment.
@@ -1108,6 +1126,9 @@ public sealed class BSPrim : BSPhysObject
 
                 RegisterPreStepAction("BSPrim.Hover", LocalID, delegate(float timeStep)
                 {
+                    if (!IsPhysicallyActive)
+                        return;
+
                     _hoverMotor.SetCurrent(RawPosition.Z);
                     _hoverMotor.SetTarget(ComputeCurrentPIDHoverHeight());
                     float targetHeight = _hoverMotor.Step(timeStep);

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -3708,7 +3708,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     if (animID == UUID.Zero)
                         presence.Animator.RemoveAnimation(anim);
                     else
-                        presence.Animator.RemoveAnimation(animID);
+                        presence.Animator.RemoveAnimation(animID, true);
                 }
             }
         }
@@ -6228,13 +6228,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 if (parcelOwned && land.LandData.OwnerID == id ||
                                     parcel && land.LandData.GlobalID == id)
                                 {
-                                    result.Add(ssp.UUID.ToString());
+                                    result.Add(new LSL_Key(ssp.UUID.ToString()));
                                 }
                             }
                         }
                         else
                         {
-                            result.Add(ssp.UUID.ToString());
+                            result.Add(new LSL_Key(ssp.UUID.ToString()));
                         }
                     }
                     // Maximum of 100 results
@@ -11528,6 +11528,35 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             case ScriptBaseClass.OBJECT_PHYSICS_COST:
                                 ret.Add(new LSL_Float(0));
                                 break;
+                            case ScriptBaseClass.OBJECT_CHARACTER_TIME: // Pathfinding
+                                ret.Add(new LSL_Float(0));
+                                break;
+                            case ScriptBaseClass.OBJECT_ROOT:
+                                SceneObjectPart p = av.ParentPart;
+                                if (p != null)
+                                {
+                                    ret.Add(new LSL_String(p.ParentGroup.RootPart.UUID.ToString()));
+                                }
+                                else
+                                {
+                                    ret.Add(new LSL_String(id));
+                                }
+                                break;
+                            case ScriptBaseClass.OBJECT_ATTACHED_POINT:
+                                ret.Add(new LSL_Integer(0));
+                                break;
+                            case ScriptBaseClass.OBJECT_PATHFINDING_TYPE: // Pathfinding
+                                ret.Add(new LSL_Integer(ScriptBaseClass.OPT_AVATAR));
+                                break;
+                            case ScriptBaseClass.OBJECT_PHYSICS:
+                                ret.Add(new LSL_Integer(0));
+                                break;
+                            case ScriptBaseClass.OBJECT_PHANTOM:
+                                ret.Add(new LSL_Integer(0));
+                                break;
+                            case ScriptBaseClass.OBJECT_TEMP_ON_REZ:
+                                ret.Add(new LSL_Integer(0));
+                                break;
                             default:
                                 // Invalid or unhandled constant.
                                 ret.Add(new LSL_Integer(ScriptBaseClass.OBJECT_UNKNOWN_DETAIL));
@@ -11619,6 +11648,52 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 // The value returned in SL for normal prims is prim count
                                 ret.Add(new LSL_Float(obj.PhysicsCost));
                                 break;
+                            case ScriptBaseClass.OBJECT_CHARACTER_TIME: // Pathfinding
+                                ret.Add(new LSL_Float(0));
+                                break;
+                            case ScriptBaseClass.OBJECT_ROOT:
+                                ret.Add(new LSL_String(obj.ParentGroup.RootPart.UUID.ToString()));
+                                break;
+                            case ScriptBaseClass.OBJECT_ATTACHED_POINT:
+                                ret.Add(new LSL_Integer(obj.ParentGroup.AttachmentPoint));
+                                break;
+                            case ScriptBaseClass.OBJECT_PATHFINDING_TYPE:
+                                byte pcode = obj.Shape.PCode;
+                                if (obj.ParentGroup.AttachmentPoint != 0
+                                   || pcode == (byte)PCode.Grass
+                                   || pcode == (byte)PCode.Tree
+                                   || pcode == (byte)PCode.NewTree)
+                                {
+                                    ret.Add(new LSL_Integer(ScriptBaseClass.OPT_OTHER));
+                                }
+                                else
+                                {
+                                    ret.Add(new LSL_Integer(ScriptBaseClass.OPT_LEGACY_LINKSET));
+                                }
+                                break;
+                            case ScriptBaseClass.OBJECT_PHYSICS:
+                                if (obj.ParentGroup.AttachmentPoint != 0)
+                                {
+                                    ret.Add(new LSL_Integer(0)); // Always false if attached
+                                }
+                                else
+                                {
+                                    ret.Add(new LSL_Integer(obj.ParentGroup.UsesPhysics ? 1 : 0));
+                                }
+                                break;
+                            case ScriptBaseClass.OBJECT_PHANTOM:
+                                if (obj.ParentGroup.AttachmentPoint != 0)
+                                {
+                                    ret.Add(new LSL_Integer(0)); // Always false if attached
+                                }
+                                else
+                                {
+                                    ret.Add(new LSL_Integer(obj.ParentGroup.IsPhantom ? 1 : 0));
+                                }
+                                break;
+                            case ScriptBaseClass.OBJECT_TEMP_ON_REZ:
+                                ret.Add(new LSL_Integer(obj.ParentGroup.IsTemporary ? 1 : 0));
+                                break;
                             default:
                                 // Invalid or unhandled constant.
                                 ret.Add(new LSL_Integer(ScriptBaseClass.OBJECT_UNKNOWN_DETAIL));

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -995,7 +995,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     if (animID == UUID.Zero)
                         target.Animator.RemoveAnimation(animation);
                     else
-                        target.Animator.RemoveAnimation(animID);
+                        target.Animator.RemoveAnimation(animID, true);
                 }
             }
         }

OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs

@@ -557,6 +557,23 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int OBJECT_SERVER_COST = 14;
         public const int OBJECT_STREAMING_COST = 15;
         public const int OBJECT_PHYSICS_COST = 16;
+        public const int OBJECT_CHARACTER_TIME = 17;
+        public const int OBJECT_ROOT = 18;
+        public const int OBJECT_ATTACHED_POINT = 19;
+        public const int OBJECT_PATHFINDING_TYPE = 20;
+        public const int OBJECT_PHYSICS = 21;
+        public const int OBJECT_PHANTOM = 22;
+        public const int OBJECT_TEMP_ON_REZ = 23;
+
+        // Pathfinding types
+        public const int OPT_OTHER = -1;
+        public const int OPT_LEGACY_LINKSET = 0;
+        public const int OPT_AVATAR = 1;
+        public const int OPT_CHARACTER = 2;
+        public const int OPT_WALKABLE = 3;
+        public const int OPT_STATIC_OBSTACLE = 4;
+        public const int OPT_MATERIAL_VOLUME = 5;
+        public const int OPT_EXCLUSION_VOLUME = 6;
 
         // for llGetAgentList
         public const int AGENT_LIST_PARCEL = 1;