/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the OpenSimulator Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ using System; using System.Collections.Generic; using System.Reflection; using System.Threading; using OpenMetaverse; using log4net; using Nini.Config; using OpenSim.Framework; using OpenSim.Framework.Console; using OpenSim.Framework.Communications.Cache; using OpenSim.Region.Framework.Interfaces; using GridRegion = OpenSim.Services.Interfaces.GridRegion; namespace OpenSim.Region.Framework.Scenes { public abstract class SceneBase : IScene { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); #region Events public event restart OnRestart; #endregion #region Fields public IConfigSource Config { get { return GetConfig(); } } protected virtual IConfigSource GetConfig() { return null; } /// <value> /// All the region modules attached to this scene. /// </value> public Dictionary<string, IRegionModule> Modules { get { return m_modules; } } protected Dictionary<string, IRegionModule> m_modules = new Dictionary<string, IRegionModule>(); public Dictionary<string, IRegionModuleBase> RegionModules { get { return m_regionModules; } } private Dictionary<string, IRegionModuleBase> m_regionModules = new Dictionary<string, IRegionModuleBase>(); /// <value> /// The module interfaces available from this scene. /// </value> protected Dictionary<Type, List<object>> ModuleInterfaces = new Dictionary<Type, List<object>>(); protected Dictionary<string, object> ModuleAPIMethods = new Dictionary<string, object>(); /// <value> /// The module commanders available from this scene /// </value> protected Dictionary<string, ICommander> m_moduleCommanders = new Dictionary<string, ICommander>(); /// <value> /// Registered classes that are capable of creating entities. /// </value> protected Dictionary<PCode, IEntityCreator> m_entityCreators = new Dictionary<PCode, IEntityCreator>(); /// <summary> /// The last allocated local prim id. When a new local id is requested, the next number in the sequence is /// dispensed. /// </summary> protected uint m_lastAllocatedLocalId = 720000; private readonly Mutex _primAllocateMutex = new Mutex(false); private readonly ClientManager m_clientManager = new ClientManager(); public ClientManager ClientManager { get { return m_clientManager; } } public float TimeDilation { get { return m_timedilation; } } protected float m_timedilation = 1.0f; protected ulong m_regionHandle; protected string m_regionName; protected RegionInfo m_regInfo; public ITerrainChannel Heightmap; /// <value> /// Allows retrieval of land information for this scene. /// </value> public ILandChannel LandChannel; /// <value> /// Manage events that occur in this scene (avatar movement, script rez, etc.). Commonly used by region modules /// to subscribe to scene events. /// </value> public EventManager EventManager { get { return m_eventManager; } } protected EventManager m_eventManager; protected ScenePermissions m_permissions; public ScenePermissions Permissions { get { return m_permissions; } } protected string m_datastore; /* Used by the loadbalancer plugin on GForge */ protected RegionStatus m_regStatus; public RegionStatus RegionStatus { get { return m_regStatus; } set { m_regStatus = value; } } #endregion #region Update Methods /// <summary> /// Normally called once every frame/tick to let the world preform anything required (like running the physics simulation) /// </summary> public abstract void Update(); #endregion #region Terrain Methods /// <summary> /// Loads the World heightmap /// </summary> public abstract void LoadWorldMap(); /// <summary> /// Send the region heightmap to the client /// </summary> /// <param name="RemoteClient">Client to send to</param> public virtual void SendLayerData(IClientAPI RemoteClient) { RemoteClient.SendLayerData(Heightmap.GetFloatsSerialised()); } #endregion #region Add/Remove Agent/Avatar /// <summary> /// Register the new client with the scene. The client starts off as a child agent - the later agent crossing /// will promote it to a root agent during login. /// </summary> /// <param name="client"></param public abstract void AddNewClient(IClientAPI client); /// <summary> /// Remove a client from the scene /// </summary> /// <param name="agentID"></param> public abstract void RemoveClient(UUID agentID); public abstract void CloseAllAgents(uint circuitcode); #endregion /// <summary> /// /// </summary> /// <returns></returns> public virtual RegionInfo RegionInfo { get { return m_regInfo; } } #region admin stuff /// <summary> /// Region Restart - Seconds till restart. /// </summary> /// <param name="seconds"></param> public virtual void Restart(int seconds) { m_log.Error("[REGION]: passing Restart Message up the namespace"); restart handlerPhysicsCrash = OnRestart; if (handlerPhysicsCrash != null) handlerPhysicsCrash(RegionInfo); } public virtual bool PresenceChildStatus(UUID avatarID) { return false; } public abstract void OtherRegionUp(GridRegion otherRegion); public virtual string GetSimulatorVersion() { return "OpenSimulator Server"; } #endregion #region Shutdown /// <summary> /// Tidy before shutdown /// </summary> public virtual void Close() { // Shut down all non shared modules. foreach (IRegionModule module in Modules.Values) { if (!module.IsSharedModule) { module.Close(); } } Modules.Clear(); try { EventManager.TriggerShutdown(); } catch (Exception e) { m_log.Error("[SCENE]: SceneBase.cs: Close() - Failed with exception " + e.ToString()); } } #endregion /// <summary> /// Returns a new unallocated local ID /// </summary> /// <returns>A brand new local ID</returns> protected internal uint AllocateLocalId() { uint myID; _primAllocateMutex.WaitOne(); myID = ++m_lastAllocatedLocalId; _primAllocateMutex.ReleaseMutex(); return myID; } #region Module Methods /// <summary> /// Add a module to this scene. /// </summary> /// <param name="name"></param> /// <param name="module"></param> public void AddModule(string name, IRegionModule module) { if (!Modules.ContainsKey(name)) { Modules.Add(name, module); } } /// <summary> /// Add a region-module to this scene. TODO: This will replace AddModule in the future. /// </summary> /// <param name="name"></param> /// <param name="module"></param> public void AddRegionModule(string name, IRegionModuleBase module) { if (!RegionModules.ContainsKey(name)) { RegionModules.Add(name, module); } } public void RemoveRegionModule(string name) { RegionModules.Remove(name); } /// <summary> /// Register a module commander. /// </summary> /// <param name="commander"></param> public void RegisterModuleCommander(ICommander commander) { lock (m_moduleCommanders) { m_moduleCommanders.Add(commander.Name, commander); } } /// <summary> /// Unregister a module commander and all its commands /// </summary> /// <param name="name"></param> public void UnregisterModuleCommander(string name) { lock (m_moduleCommanders) { ICommander commander; if (m_moduleCommanders.TryGetValue(name, out commander)) m_moduleCommanders.Remove(name); } } /// <summary> /// Get a module commander /// </summary> /// <param name="name"></param> /// <returns>The module commander, null if no module commander with that name was found</returns> public ICommander GetCommander(string name) { lock (m_moduleCommanders) { if (m_moduleCommanders.ContainsKey(name)) return m_moduleCommanders[name]; } return null; } public Dictionary<string, ICommander> GetCommanders() { return m_moduleCommanders; } /// <summary> /// Register an interface to a region module. This allows module methods to be called directly as /// well as via events. If there is already a module registered for this interface, it is not replaced /// (is this the best behaviour?) /// </summary> /// <param name="mod"></param> public void RegisterModuleInterface<M>(M mod) { List<Object> l = null; if (!ModuleInterfaces.TryGetValue(typeof(M), out l)) { l = new List<Object>(); ModuleInterfaces.Add(typeof(M), l); } if (l.Count > 0) return; l.Add(mod); if (mod is IEntityCreator) { IEntityCreator entityCreator = (IEntityCreator)mod; foreach (PCode pcode in entityCreator.CreationCapabilities) { m_entityCreators[pcode] = entityCreator; } } } public void UnregisterModuleInterface<M>(M mod) { List<Object> l; if (ModuleInterfaces.TryGetValue(typeof(M), out l)) { if (l.Remove(mod)) { if (mod is IEntityCreator) { IEntityCreator entityCreator = (IEntityCreator)mod; foreach (PCode pcode in entityCreator.CreationCapabilities) { m_entityCreators[pcode] = null; } } } } } public void StackModuleInterface<M>(M mod) { List<Object> l; if (ModuleInterfaces.ContainsKey(typeof(M))) l = ModuleInterfaces[typeof(M)]; else l = new List<Object>(); if (l.Contains(mod)) return; l.Add(mod); if (mod is IEntityCreator) { IEntityCreator entityCreator = (IEntityCreator)mod; foreach (PCode pcode in entityCreator.CreationCapabilities) { m_entityCreators[pcode] = entityCreator; } } ModuleInterfaces[typeof(M)] = l; } /// <summary> /// For the given interface, retrieve the region module which implements it. /// </summary> /// <returns>null if there is no registered module implementing that interface</returns> public T RequestModuleInterface<T>() { if (ModuleInterfaces.ContainsKey(typeof(T)) && (ModuleInterfaces[typeof(T)].Count > 0)) return (T)ModuleInterfaces[typeof(T)][0]; else return default(T); } /// <summary> /// For the given interface, retrieve an array of region modules that implement it. /// </summary> /// <returns>an empty array if there are no registered modules implementing that interface</returns> public T[] RequestModuleInterfaces<T>() { if (ModuleInterfaces.ContainsKey(typeof(T))) { List<T> ret = new List<T>(); foreach (Object o in ModuleInterfaces[typeof(T)]) ret.Add((T)o); return ret.ToArray(); } else { return new T[] { default(T) }; } } #endregion /// <summary> /// Shows various details about the sim based on the parameters supplied by the console command in openSimMain. /// </summary> /// <param name="showParams">What to show</param> public virtual void Show(string[] showParams) { switch (showParams[0]) { case "modules": m_log.Error("The currently loaded modules in " + RegionInfo.RegionName + " are:"); foreach (IRegionModule module in Modules.Values) { if (!module.IsSharedModule) { m_log.Error("Region Module: " + module.Name); } } break; } } public void AddCommand(object mod, string command, string shorthelp, string longhelp, CommandDelegate callback) { if (MainConsole.Instance == null) return; string modulename = String.Empty; bool shared = false; if (mod != null) { if (mod is IRegionModule) { IRegionModule module = (IRegionModule)mod; modulename = module.Name; shared = module.IsSharedModule; } else if (mod is IRegionModuleBase) { IRegionModuleBase module = (IRegionModuleBase)mod; modulename = module.Name; shared = mod is ISharedRegionModule; } else throw new Exception("AddCommand module parameter must be IRegionModule or IRegionModuleBase"); } MainConsole.Instance.Commands.AddCommand(modulename, shared, command, shorthelp, longhelp, callback); } } }