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/*
* 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.Diagnostics;
using System.Reflection;
using System.Text;
using System.Threading;
using log4net;
using OpenMetaverse;
using OpenSim.Region.ScriptEngine.Shared;
using OpenSim.ScriptEngine.Shared;
using EventParams=OpenSim.ScriptEngine.Shared.EventParams;
namespace OpenSim.ScriptEngine.Components.DotNetEngine.Scheduler
{
public partial class ScriptManager: IScriptExecutor
{
private const int NoWorkSleepMs = 50;
private const int NoWorkSleepMsInc = 1; // How much time to increase wait with on every iteration
private const int NoWorkSleepMsIncMax = 300; // Max time to wait
internal static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public string Name { get { return "SECS.DotNetEngine.ScriptManager"; } }
private static Thread ScriptLoadUnloadThread;
public Dictionary<uint, Dictionary<UUID, ScriptStructure>> Scripts = new Dictionary<uint, Dictionary<UUID, ScriptStructure>>();
private RegionInfoStructure CurrentRegion;
public void Initialize(RegionInfoStructure currentRegion)
{
CurrentRegion = currentRegion;
}
public ScriptManager()
{
ScriptLoadUnloadThread = new Thread(LoadUnloadLoop);
ScriptLoadUnloadThread.Name = "ScriptLoadUnloadThread";
ScriptLoadUnloadThread.IsBackground = true;
ScriptLoadUnloadThread.Start();
}
public void Close() { }
private void LoadUnloadLoop ()
{
int _NoWorkSleepMsInc = 0;
while (true)
{
if (DoScriptLoadUnload())
{
// We found work, reset counter
_NoWorkSleepMsInc = NoWorkSleepMs;
} else
{
// We didn't find work
// Sleep
Thread.Sleep(NoWorkSleepMs + NoWorkSleepMsInc);
// Increase sleep delay
_NoWorkSleepMsInc += NoWorkSleepMsInc;
// Make sure we don't exceed max
if (_NoWorkSleepMsInc > NoWorkSleepMsIncMax)
_NoWorkSleepMsInc = NoWorkSleepMsIncMax;
}
}
}
#region Add/Remove/Find script functions for our Script memory structure
private void MemAddScript(ScriptStructure script)
{
lock (scriptLock)
{
// Create object if it doesn't exist
if (!Scripts.ContainsKey(script.LocalID))
Scripts.Add(script.LocalID, new Dictionary<UUID, ScriptStructure>());
// Delete script if it exists
Dictionary<UUID, ScriptStructure> Obj;
if (Scripts.TryGetValue(script.LocalID, out Obj))
if (Obj.ContainsKey(script.ItemID) == true)
Obj.Remove(script.ItemID);
// Add to object
Obj.Add(script.ItemID, script);
}
}
private void MemRemoveScript(uint LocalID, UUID ItemID)
{
// TODO: Also clean up command queue and async commands for object
lock (scriptLock)
{
// Create object if it doesn't exist
if (!Scripts.ContainsKey(LocalID))
return;
// Delete script if it exists
Dictionary<UUID, ScriptStructure> Obj;
if (Scripts.TryGetValue(LocalID, out Obj))
if (Obj.ContainsKey(ItemID) == true)
Obj.Remove(ItemID);
// Empty?
if (Obj.Count == 0)
Scripts.Remove(LocalID);
}
}
public bool TryGetScript(uint localID, UUID itemID, ref ScriptStructure script)
{
lock (scriptLock)
{
if (Scripts.ContainsKey(localID) == false)
return false;
Dictionary<UUID, ScriptStructure> Obj;
if (Scripts.TryGetValue(localID, out Obj))
if (Obj.ContainsKey(itemID) == false)
return false;
// Get script
return Obj.TryGetValue(itemID, out script);
}
}
public ScriptStructure GetScript(uint localID, UUID itemID)
{
lock (scriptLock)
{
if (Scripts.ContainsKey(localID) == false)
throw new Exception("No script with LocalID " + localID + " was found.");
Dictionary<UUID, ScriptStructure> Obj;
if (Scripts.TryGetValue(localID, out Obj))
if (Obj.ContainsKey(itemID) == false)
throw new Exception("No script with ItemID " + itemID + " was found.");
// Get script
return Obj[itemID];
}
}
public bool TryGetScripts(uint localID, ref Dictionary<UUID, ScriptStructure> returnList)
{
Dictionary<UUID, ScriptStructure> getList = GetScripts(localID);
if (getList != null)
{
returnList = getList;
return true;
}
return false;
}
public Dictionary<UUID, ScriptStructure> GetScripts(uint localID)
{
lock (scriptLock)
{
if (Scripts.ContainsKey(localID) == false)
return null;
return Scripts[localID];
}
}
#endregion
public void ExecuteCommand(EventParams p)
{
ScriptStructure ss = new ScriptStructure();
if (TryGetScript(p.LocalID, p.ItemID, ref ss))
ExecuteCommand(ref ss, p);
}
public void ExecuteCommand(ref ScriptStructure scriptContainer, EventParams p)
{
m_log.DebugFormat("[{0}] ######################################################", Name);
m_log.DebugFormat("[{0}] Command execution ItemID {1}: \"{2}\".", Name, scriptContainer.ItemID, p.EventName);
scriptContainer.ExecuteEvent(p);
m_log.DebugFormat("[{0}] ######################################################", Name);
}
}
}
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