409 lines
14 KiB
C#
409 lines
14 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Threading;
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using libsecondlife;
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using OpenSim.Region.Environment.Interfaces;
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using OpenSim.Region.Environment.Modules;
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namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase
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{
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/// <summary>
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/// Handles LSL commands that takes long time and returns an event, for example timers, HTTP requests, etc.
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/// </summary>
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public class AsyncLSLCommandManager : iScriptEngineFunctionModule
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{
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private static Thread cmdHandlerThread;
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private static int cmdHandlerThreadCycleSleepms;
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private ScriptEngine m_ScriptEngine;
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public AsyncLSLCommandManager(ScriptEngine _ScriptEngine)
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{
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m_ScriptEngine = _ScriptEngine;
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ReadConfig();
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StartThread();
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}
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private void StartThread()
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{
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if (cmdHandlerThread == null)
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{
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// Start the thread that will be doing the work
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cmdHandlerThread = new Thread(CmdHandlerThreadLoop);
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cmdHandlerThread.Name = "AsyncLSLCmdHandlerThread";
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cmdHandlerThread.Priority = ThreadPriority.BelowNormal;
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cmdHandlerThread.IsBackground = true;
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cmdHandlerThread.Start();
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OpenSim.Framework.ThreadTracker.Add(cmdHandlerThread);
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}
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}
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public void ReadConfig()
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{
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cmdHandlerThreadCycleSleepms = m_ScriptEngine.ScriptConfigSource.GetInt("AsyncLLCommandLoopms", 100);
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}
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~AsyncLSLCommandManager()
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{
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// Shut down thread
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try
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{
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if (cmdHandlerThread != null)
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{
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if (cmdHandlerThread.IsAlive == true)
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{
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cmdHandlerThread.Abort();
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//cmdHandlerThread.Join();
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}
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}
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}
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catch
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{
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}
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}
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private static void CmdHandlerThreadLoop()
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{
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while (true)
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{
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try
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{
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while (true)
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{
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Thread.Sleep(cmdHandlerThreadCycleSleepms);
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//lock (ScriptEngine.ScriptEngines)
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//{
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foreach (ScriptEngine se in new ArrayList(ScriptEngine.ScriptEngines))
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{
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se.m_ASYNCLSLCommandManager.DoOneCmdHandlerPass();
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}
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//}
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// Sleep before next cycle
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//Thread.Sleep(cmdHandlerThreadCycleSleepms);
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}
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}
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catch
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{
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}
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}
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}
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internal void DoOneCmdHandlerPass()
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{
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// Check timers
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CheckTimerEvents();
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// Check HttpRequests
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CheckHttpRequests();
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// Check XMLRPCRequests
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CheckXMLRPCRequests();
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// Check Listeners
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CheckListeners();
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}
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/// <summary>
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/// Remove a specific script (and all its pending commands)
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/// </summary>
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/// <param name="localID"></param>
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/// <param name="itemID"></param>
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public void RemoveScript(uint localID, LLUUID itemID)
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{
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// Remove a specific script
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// Remove from: Timers
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UnSetTimerEvents(localID, itemID);
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// Remove from: HttpRequest
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IHttpRequests iHttpReq =
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m_ScriptEngine.World.RequestModuleInterface<IHttpRequests>();
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iHttpReq.StopHttpRequest(localID, itemID);
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IWorldComm comms = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
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comms.DeleteListener(itemID);
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IXMLRPC xmlrpc = m_ScriptEngine.World.RequestModuleInterface<IXMLRPC>();
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xmlrpc.DeleteChannels(itemID);
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xmlrpc.CancelSRDRequests(itemID);
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}
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#region TIMER
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//
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// TIMER
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//
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private class TimerClass
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{
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public uint localID;
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public LLUUID itemID;
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//public double interval;
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public long interval;
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//public DateTime next;
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public long next;
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}
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private List<TimerClass> Timers = new List<TimerClass>();
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private object TimerListLock = new object();
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public void SetTimerEvent(uint m_localID, LLUUID m_itemID, double sec)
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{
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Console.WriteLine("SetTimerEvent");
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// Always remove first, in case this is a re-set
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UnSetTimerEvents(m_localID, m_itemID);
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if (sec == 0) // Disabling timer
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return;
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// Add to timer
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TimerClass ts = new TimerClass();
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ts.localID = m_localID;
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ts.itemID = m_itemID;
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ts.interval = Convert.ToInt64(sec * 10000000); // How many 100 nanoseconds (ticks) should we wait
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// 2193386136332921 ticks
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// 219338613 seconds
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//ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
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ts.next = DateTime.Now.Ticks + ts.interval;
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lock (TimerListLock)
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{
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Timers.Add(ts);
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}
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}
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public void UnSetTimerEvents(uint m_localID, LLUUID m_itemID)
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{
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// Remove from timer
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lock (TimerListLock)
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{
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foreach (TimerClass ts in new ArrayList(Timers))
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{
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if (ts.localID == m_localID && ts.itemID == m_itemID)
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Timers.Remove(ts);
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}
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}
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// Old method: Create new list
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//List<TimerClass> NewTimers = new List<TimerClass>();
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//foreach (TimerClass ts in Timers)
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//{
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// if (ts.localID != m_localID && ts.itemID != m_itemID)
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// {
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// NewTimers.Add(ts);
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// }
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//}
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//Timers.Clear();
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//Timers = NewTimers;
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//}
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}
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public void CheckTimerEvents()
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{
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// Nothing to do here?
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if (Timers.Count == 0)
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return;
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lock (TimerListLock)
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{
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// Go through all timers
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foreach (TimerClass ts in Timers)
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{
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// Time has passed?
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if (ts.next < DateTime.Now.Ticks)
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{
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// Console.WriteLine("Time has passed: Now: " + DateTime.Now.Ticks + ", Passed: " + ts.next);
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// Add it to queue
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m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(ts.localID, ts.itemID, "timer", EventQueueManager.llDetectNull,
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null);
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// set next interval
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//ts.next = DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
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ts.next = DateTime.Now.Ticks + ts.interval;
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}
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}
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}
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}
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#endregion
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#region HTTP REQUEST
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public void CheckHttpRequests()
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{
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if (m_ScriptEngine.World == null)
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return;
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IHttpRequests iHttpReq =
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m_ScriptEngine.World.RequestModuleInterface<IHttpRequests>();
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HttpRequestClass httpInfo = null;
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if (iHttpReq != null)
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httpInfo = iHttpReq.GetNextCompletedRequest();
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while (httpInfo != null)
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{
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//Console.WriteLine("PICKED HTTP REQ:" + httpInfo.response_body + httpInfo.status);
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// Deliver data to prim's remote_data handler
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//
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// TODO: Returning null for metadata, since the lsl function
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// only returns the byte for HTTP_BODY_TRUNCATED, which is not
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// implemented here yet anyway. Should be fixed if/when maxsize
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// is supported
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if (m_ScriptEngine.m_ScriptManager.GetScript(httpInfo.localID, httpInfo.itemID) != null)
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{
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iHttpReq.RemoveCompletedRequest(httpInfo.reqID);
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object[] resobj = new object[]
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{
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httpInfo.reqID.ToString(), httpInfo.status, null, httpInfo.response_body
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};
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m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(
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httpInfo.localID, httpInfo.itemID, "http_response", EventQueueManager.llDetectNull, resobj
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);
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}
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httpInfo = iHttpReq.GetNextCompletedRequest();
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}
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}
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#endregion
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#region Check llRemoteData channels
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public void CheckXMLRPCRequests()
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{
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if (m_ScriptEngine.World == null)
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return;
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IXMLRPC xmlrpc = m_ScriptEngine.World.RequestModuleInterface<IXMLRPC>();
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if (xmlrpc != null)
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{
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RPCRequestInfo rInfo = xmlrpc.GetNextCompletedRequest();
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while (rInfo != null)
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{
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if (m_ScriptEngine.m_ScriptManager.GetScript(rInfo.GetLocalID(), rInfo.GetItemID()) != null)
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{
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xmlrpc.RemoveCompletedRequest(rInfo.GetMessageID());
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//Deliver data to prim's remote_data handler
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object[] resobj = new object[]
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{
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2, rInfo.GetChannelKey().ToString(), rInfo.GetMessageID().ToString(), String.Empty,
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rInfo.GetIntValue(),
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rInfo.GetStrVal()
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};
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m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(
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rInfo.GetLocalID(), rInfo.GetItemID(), "remote_data", EventQueueManager.llDetectNull, resobj
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);
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}
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rInfo = xmlrpc.GetNextCompletedRequest();
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}
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SendRemoteDataRequest srdInfo = xmlrpc.GetNextCompletedSRDRequest();
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while (srdInfo != null)
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{
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if (m_ScriptEngine.m_ScriptManager.GetScript(srdInfo.m_localID, srdInfo.m_itemID) != null)
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{
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xmlrpc.RemoveCompletedSRDRequest(srdInfo.GetReqID());
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//Deliver data to prim's remote_data handler
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object[] resobj = new object[]
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{
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3, srdInfo.channel.ToString(), srdInfo.GetReqID().ToString(), String.Empty,
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srdInfo.idata,
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srdInfo.sdata
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};
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m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(
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srdInfo.m_localID, srdInfo.m_itemID, "remote_data", EventQueueManager.llDetectNull, resobj
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);
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}
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srdInfo = xmlrpc.GetNextCompletedSRDRequest();
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}
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}
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}
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#endregion
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#region Check llListeners
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public void CheckListeners()
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{
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if (m_ScriptEngine.World == null)
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return;
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IWorldComm comms = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
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if (comms != null)
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{
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while (comms.HasMessages())
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{
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if (m_ScriptEngine.m_ScriptManager.GetScript(
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comms.PeekNextMessageLocalID(), comms.PeekNextMessageItemID()) != null)
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{
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ListenerInfo lInfo = comms.GetNextMessage();
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//Deliver data to prim's listen handler
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object[] resobj = new object[]
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{
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lInfo.GetChannel(), lInfo.GetName(), lInfo.GetID().ToString(), lInfo.GetMessage()
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};
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m_ScriptEngine.m_EventQueueManager.AddToScriptQueue(
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lInfo.GetLocalID(), lInfo.GetItemID(), "listen", EventQueueManager.llDetectNull, resobj
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);
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}
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}
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}
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}
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#endregion
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/// <summary>
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/// If set to true then threads and stuff should try to make a graceful exit
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/// </summary>
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public bool PleaseShutdown
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{
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get { return _PleaseShutdown; }
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set { _PleaseShutdown = value; }
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}
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private bool _PleaseShutdown = false;
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}
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}
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