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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 OpenSim 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;
using System.Collections.Generic;
using System.Threading;
using libsecondlife;
using Axiom.Math;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules;
using OpenSim.Region.Environment.Scenes;
using OpenSim.Framework;
using OpenSim.Region.ScriptEngine.Common.ScriptEngineBase.AsyncCommandPlugins;
using Timer=OpenSim.Region.ScriptEngine.Common.ScriptEngineBase.AsyncCommandPlugins.Timer;
namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase
{
/// <summary>
/// Handles LSL commands that takes long time and returns an event, for example timers, HTTP requests, etc.
/// </summary>
public class AsyncCommandManager : iScriptEngineFunctionModule
{
private static Thread cmdHandlerThread;
private static int cmdHandlerThreadCycleSleepms;
public ScriptEngine m_ScriptEngine;
public AsyncCommandPlugins.Timer m_Timer;
public AsyncCommandPlugins.HttpRequest m_HttpRequest;
public AsyncCommandPlugins.Listener m_Listener;
public AsyncCommandPlugins.SensorRepeat m_SensorRepeat;
public AsyncCommandPlugins.XmlRequest m_XmlRequest;
public AsyncCommandManager(ScriptEngine _ScriptEngine)
{
m_ScriptEngine = _ScriptEngine;
ReadConfig();
// Create instances of all plugins
m_Timer = new Timer(this);
m_HttpRequest = new HttpRequest(this);
m_Listener = new Listener(this);
m_SensorRepeat = new SensorRepeat(this);
m_XmlRequest = new XmlRequest(this);
StartThread();
}
private void StartThread()
{
if (cmdHandlerThread == null)
{
// Start the thread that will be doing the work
cmdHandlerThread = new Thread(CmdHandlerThreadLoop);
cmdHandlerThread.Name = "AsyncLSLCmdHandlerThread";
cmdHandlerThread.Priority = ThreadPriority.BelowNormal;
cmdHandlerThread.IsBackground = true;
cmdHandlerThread.Start();
OpenSim.Framework.ThreadTracker.Add(cmdHandlerThread);
}
}
public void ReadConfig()
{
cmdHandlerThreadCycleSleepms = m_ScriptEngine.ScriptConfigSource.GetInt("AsyncLLCommandLoopms", 100);
}
~AsyncCommandManager()
{
// Shut down thread
try
{
if (cmdHandlerThread != null)
{
if (cmdHandlerThread.IsAlive == true)
{
cmdHandlerThread.Abort();
//cmdHandlerThread.Join();
}
}
}
catch
{
}
}
private static void CmdHandlerThreadLoop()
{
while (true)
{
try
{
while (true)
{
Thread.Sleep(cmdHandlerThreadCycleSleepms);
//lock (ScriptEngine.ScriptEngines)
//{
foreach (ScriptEngine se in new ArrayList(ScriptEngine.ScriptEngines))
{
se.m_ASYNCLSLCommandManager.DoOneCmdHandlerPass();
}
//}
// Sleep before next cycle
//Thread.Sleep(cmdHandlerThreadCycleSleepms);
}
}
catch
{
}
}
}
internal void DoOneCmdHandlerPass()
{
// Check timers
m_Timer.CheckTimerEvents();
// Check HttpRequests
m_HttpRequest.CheckHttpRequests();
// Check XMLRPCRequests
m_XmlRequest.CheckXMLRPCRequests();
// Check Listeners
m_Listener.CheckListeners();
// Check Sensors
m_SensorRepeat.CheckSenseRepeaterEvents();
}
/// <summary>
/// Remove a specific script (and all its pending commands)
/// </summary>
/// <param name="localID"></param>
/// <param name="itemID"></param>
public void RemoveScript(uint localID, LLUUID itemID)
{
// Remove a specific script
// Remove from: Timers
m_Timer.UnSetTimerEvents(localID, itemID);
// Remove from: HttpRequest
IHttpRequests iHttpReq =
m_ScriptEngine.World.RequestModuleInterface<IHttpRequests>();
iHttpReq.StopHttpRequest(localID, itemID);
IWorldComm comms = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
comms.DeleteListener(itemID);
IXMLRPC xmlrpc = m_ScriptEngine.World.RequestModuleInterface<IXMLRPC>();
xmlrpc.DeleteChannels(itemID);
xmlrpc.CancelSRDRequests(itemID);
// Remove Sensors
m_SensorRepeat.UnSetSenseRepeaterEvents(localID, itemID);
}
#region Check llRemoteData channels
#endregion
#region Check llListeners
#endregion
/// <summary>
/// If set to true then threads and stuff should try to make a graceful exit
/// </summary>
public bool PleaseShutdown
{
get { return _PleaseShutdown; }
set { _PleaseShutdown = value; }
}
private bool _PleaseShutdown = false;
}
}
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