mirror of
https://github.com/opensim/opensim.git
synced 2026-05-19 22:45:43 +08:00
86367d7219
This is to achieve a clean separation of concerns - the watchdog is an inappropriate place for work management. Also adds a WorkManager.RunInThreadPool() class which feeds through to Util.FireAndForget. Also switches around the name and obj arguments to the new RunInThread() and RunJob() methods so that the callback obj comes after the callback as seen in the SDK and elsewhere
288 lines
11 KiB
C#
288 lines
11 KiB
C#
/*
|
|
* 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.Concurrent;
|
|
using System.Reflection;
|
|
using System.Threading;
|
|
using log4net;
|
|
using OpenSim.Framework;
|
|
using OpenSim.Framework.Monitoring;
|
|
using OpenSim.Region.Framework.Scenes;
|
|
|
|
namespace OpenSim.Region.ClientStack.LindenUDP
|
|
{
|
|
public struct RefillRequest
|
|
{
|
|
public LLUDPClient Client;
|
|
public ThrottleOutPacketTypeFlags Categories;
|
|
|
|
public RefillRequest(LLUDPClient client, ThrottleOutPacketTypeFlags categories)
|
|
{
|
|
Client = client;
|
|
Categories = categories;
|
|
}
|
|
}
|
|
|
|
public class OutgoingQueueRefillEngine
|
|
{
|
|
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
|
|
|
|
public bool IsRunning { get; private set; }
|
|
|
|
/// <summary>
|
|
/// The timeout in milliseconds to wait for at least one event to be written when the recorder is stopping.
|
|
/// </summary>
|
|
public int RequestProcessTimeoutOnStop { get; set; }
|
|
|
|
/// <summary>
|
|
/// Controls whether we need to warn in the log about exceeding the max queue size.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This is flipped to false once queue max has been exceeded and back to true when it falls below max, in
|
|
/// order to avoid spamming the log with lots of warnings.
|
|
/// </remarks>
|
|
private bool m_warnOverMaxQueue = true;
|
|
|
|
private BlockingCollection<RefillRequest> m_requestQueue;
|
|
|
|
private CancellationTokenSource m_cancelSource = new CancellationTokenSource();
|
|
|
|
private LLUDPServer m_udpServer;
|
|
|
|
private Stat m_oqreRequestsWaitingStat;
|
|
|
|
/// <summary>
|
|
/// Used to signal that we are ready to complete stop.
|
|
/// </summary>
|
|
private ManualResetEvent m_finishedProcessingAfterStop = new ManualResetEvent(false);
|
|
|
|
public OutgoingQueueRefillEngine(LLUDPServer server)
|
|
{
|
|
RequestProcessTimeoutOnStop = 5000;
|
|
m_udpServer = server;
|
|
|
|
MainConsole.Instance.Commands.AddCommand(
|
|
"Debug",
|
|
false,
|
|
"debug lludp oqre",
|
|
"debug lludp oqre <start|stop|status>",
|
|
"Start, stop or get status of OutgoingQueueRefillEngine.",
|
|
"If stopped then refill requests are processed directly via the threadpool.",
|
|
HandleOqreCommand);
|
|
}
|
|
|
|
public void Start()
|
|
{
|
|
lock (this)
|
|
{
|
|
if (IsRunning)
|
|
return;
|
|
|
|
IsRunning = true;
|
|
|
|
m_finishedProcessingAfterStop.Reset();
|
|
|
|
m_requestQueue = new BlockingCollection<RefillRequest>(new ConcurrentQueue<RefillRequest>(), 5000);
|
|
|
|
m_oqreRequestsWaitingStat =
|
|
new Stat(
|
|
"OQRERequestsWaiting",
|
|
"Number of outgong queue refill requests waiting for processing.",
|
|
"",
|
|
"",
|
|
"clientstack",
|
|
m_udpServer.Scene.Name,
|
|
StatType.Pull,
|
|
MeasuresOfInterest.None,
|
|
stat => stat.Value = m_requestQueue.Count,
|
|
StatVerbosity.Debug);
|
|
|
|
StatsManager.RegisterStat(m_oqreRequestsWaitingStat);
|
|
|
|
WorkManager.StartThread(
|
|
ProcessRequests,
|
|
String.Format("OutgoingQueueRefillEngineThread ({0})", m_udpServer.Scene.Name),
|
|
ThreadPriority.Normal,
|
|
false,
|
|
true,
|
|
null,
|
|
int.MaxValue);
|
|
}
|
|
}
|
|
|
|
public void Stop()
|
|
{
|
|
lock (this)
|
|
{
|
|
try
|
|
{
|
|
if (!IsRunning)
|
|
return;
|
|
|
|
IsRunning = false;
|
|
|
|
int requestsLeft = m_requestQueue.Count;
|
|
|
|
if (requestsLeft <= 0)
|
|
{
|
|
m_cancelSource.Cancel();
|
|
}
|
|
else
|
|
{
|
|
m_log.InfoFormat("[OUTGOING QUEUE REFILL ENGINE]: Waiting to write {0} events after stop.", requestsLeft);
|
|
|
|
while (requestsLeft > 0)
|
|
{
|
|
if (!m_finishedProcessingAfterStop.WaitOne(RequestProcessTimeoutOnStop))
|
|
{
|
|
// After timeout no events have been written
|
|
if (requestsLeft == m_requestQueue.Count)
|
|
{
|
|
m_log.WarnFormat(
|
|
"[OUTGOING QUEUE REFILL ENGINE]: No requests processed after {0} ms wait. Discarding remaining {1} requests",
|
|
RequestProcessTimeoutOnStop, requestsLeft);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
requestsLeft = m_requestQueue.Count;
|
|
}
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
m_cancelSource.Dispose();
|
|
StatsManager.DeregisterStat(m_oqreRequestsWaitingStat);
|
|
m_oqreRequestsWaitingStat = null;
|
|
m_requestQueue = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
public bool QueueRequest(LLUDPClient client, ThrottleOutPacketTypeFlags categories)
|
|
{
|
|
if (m_requestQueue.Count < m_requestQueue.BoundedCapacity)
|
|
{
|
|
// m_log.DebugFormat(
|
|
// "[OUTGOING QUEUE REFILL ENGINE]: Adding request for categories {0} for {1} in {2}",
|
|
// categories, client.AgentID, m_udpServer.Scene.Name);
|
|
|
|
m_requestQueue.Add(new RefillRequest(client, categories));
|
|
|
|
if (!m_warnOverMaxQueue)
|
|
m_warnOverMaxQueue = true;
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
if (m_warnOverMaxQueue)
|
|
{
|
|
m_log.WarnFormat(
|
|
"[OUTGOING QUEUE REFILL ENGINE]: Request queue at maximum capacity, not recording request from {0} in {1}",
|
|
client.AgentID, m_udpServer.Scene.Name);
|
|
|
|
m_warnOverMaxQueue = false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private void ProcessRequests()
|
|
{
|
|
Thread.CurrentThread.Priority = ThreadPriority.Highest;
|
|
|
|
try
|
|
{
|
|
while (IsRunning || m_requestQueue.Count > 0)
|
|
{
|
|
RefillRequest req = m_requestQueue.Take(m_cancelSource.Token);
|
|
|
|
// QueueEmpty callback = req.Client.OnQueueEmpty;
|
|
//
|
|
// if (callback != null)
|
|
// {
|
|
// try
|
|
// {
|
|
// callback(req.Categories);
|
|
// }
|
|
// catch (Exception e)
|
|
// {
|
|
// m_log.Error("[OUTGOING QUEUE REFILL ENGINE]: ProcessRequests(" + req.Categories + ") threw an exception: " + e.Message, e);
|
|
// }
|
|
// }
|
|
|
|
req.Client.FireQueueEmpty(req.Categories);
|
|
}
|
|
}
|
|
catch (OperationCanceledException)
|
|
{
|
|
}
|
|
|
|
m_finishedProcessingAfterStop.Set();
|
|
}
|
|
|
|
private void HandleOqreCommand(string module, string[] args)
|
|
{
|
|
if (SceneManager.Instance.CurrentScene != null && SceneManager.Instance.CurrentScene != m_udpServer.Scene)
|
|
return;
|
|
|
|
if (args.Length != 4)
|
|
{
|
|
MainConsole.Instance.Output("Usage: debug lludp oqre <stop|start|status>");
|
|
return;
|
|
}
|
|
|
|
string subCommand = args[3];
|
|
|
|
if (subCommand == "stop")
|
|
{
|
|
Stop();
|
|
MainConsole.Instance.OutputFormat("Stopped OQRE for {0}", m_udpServer.Scene.Name);
|
|
}
|
|
else if (subCommand == "start")
|
|
{
|
|
Start();
|
|
MainConsole.Instance.OutputFormat("Started OQRE for {0}", m_udpServer.Scene.Name);
|
|
}
|
|
else if (subCommand == "status")
|
|
{
|
|
MainConsole.Instance.OutputFormat("OQRE in {0}", m_udpServer.Scene.Name);
|
|
MainConsole.Instance.OutputFormat("Running: {0}", IsRunning);
|
|
MainConsole.Instance.OutputFormat(
|
|
"Requests waiting: {0}", IsRunning ? m_requestQueue.Count.ToString() : "n/a");
|
|
}
|
|
else
|
|
{
|
|
MainConsole.Instance.OutputFormat("Unrecognized OQRE subcommand {0}", subCommand);
|
|
}
|
|
}
|
|
}
|
|
} |