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SocketServerBase.cs
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228 lines (178 loc) · 6.7 KB
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using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Reflection;
using System.Security.Authentication;
using System.Text;
using System.Threading;
using SuperSocket.Common;
using SuperSocket.SocketBase;
using SuperSocket.SocketBase.Command;
using SuperSocket.SocketBase.Logging;
using SuperSocket.SocketBase.Pool;
using SuperSocket.SocketBase.Protocol;
using SuperSocket.SocketBase.Utils;
using SuperSocket.SocketBase.ServerResource;
using SuperSocket.SocketEngine.ServerResource;
using System.Threading.Tasks;
namespace SuperSocket.SocketEngine
{
abstract class SocketServerBase : ISocketServer, IDisposable, IAsyncSocketEventComplete
{
protected object SyncRoot = new object();
public IAppServer AppServer { get; private set; }
public bool IsRunning { get; protected set; }
protected ListenerInfo[] ListenerInfos { get; private set; }
protected List<ISocketListener> Listeners { get; private set; }
protected bool IsStopped { get; set; }
private IPool<SaeState> m_SaePool;
protected IPool<SaeState> SaePool
{
get { return m_SaePool; }
}
private IPool<BufferState> m_BufferStatePool;
protected IPool<BufferState> BufferStatePool
{
get { return m_BufferStatePool; }
}
/// <summary>
/// Gets the sending queue manager.
/// </summary>
/// <value>
/// The sending queue manager.
/// </value>
internal IPool<SendingQueue> SendingQueuePool { get; private set; }
IPool ISocketServer.SendingQueuePool
{
get { return this.SendingQueuePool; }
}
private ServerResourceItem[] m_ServerResources;
public SocketServerBase(IAppServer appServer, ListenerInfo[] listeners)
{
AppServer = appServer;
IsRunning = false;
ListenerInfos = listeners;
Listeners = new List<ISocketListener>(listeners.Length);
}
public abstract void ResetSessionSecurity(IAppSession session, SslProtocols security);
public virtual bool Start()
{
IsStopped = false;
ILog log = AppServer.Logger;
try
{
using (var transaction = new LightweightTransaction())
{
var config = this.AppServer.Config;
transaction.RegisterItem(ServerResourceItem.Create<SaePoolResource, IPool<SaeState>>(
(pool) => this.m_SaePool = pool, config));
transaction.RegisterItem(ServerResourceItem.Create<BufferStatePoolResource, IPool<BufferState>>(
(pool) => this.m_BufferStatePool = pool, config));
transaction.RegisterItem(ServerResourceItem.Create<SendingQueuePoolResource, IPool<SendingQueue>>(
(pool) => this.SendingQueuePool = pool, config));
if (!StartListeners())
return false;
m_ServerResources = transaction.Items.OfType<ServerResourceItem>().ToArray();
transaction.Commit();
}
}
catch (Exception e)
{
log.Error(e);
return false;
}
IsRunning = true;
return true;
}
private bool StartListeners()
{
ILog log = AppServer.Logger;
for (var i = 0; i < ListenerInfos.Length; i++)
{
var listener = CreateListener(ListenerInfos[i]);
listener.Error += new ErrorHandler(OnListenerError);
listener.Stopped += new EventHandler(OnListenerStopped);
listener.NewClientAccepted += new NewClientAcceptHandler(OnNewClientAccepted);
if (listener.Start(AppServer.Config))
{
Listeners.Add(listener);
if (log.IsDebugEnabled)
{
log.DebugFormat("Listener ({0}) was started", listener.EndPoint);
}
}
else //If one listener failed to start, stop started listeners
{
if (log.IsDebugEnabled)
{
log.DebugFormat("Listener ({0}) failed to start", listener.EndPoint);
}
for (var j = 0; j < Listeners.Count; j++)
{
Listeners[j].Stop();
}
Listeners.Clear();
return false;
}
}
return true;
}
protected abstract void OnNewClientAccepted(ISocketListener listener, Socket client, object state);
void OnListenerError(ISocketListener listener, Exception e)
{
var logger = this.AppServer.Logger;
if(!logger.IsErrorEnabled)
return;
logger.Error(string.Format("Listener ({0}) error: {1}", listener.EndPoint, e.Message), e);
}
void OnListenerStopped(object sender, EventArgs e)
{
var listener = sender as ISocketListener;
ILog log = AppServer.Logger;
if (log.IsDebugEnabled)
log.DebugFormat("Listener ({0}) was stopped", listener.EndPoint);
}
protected abstract ISocketListener CreateListener(ListenerInfo listenerInfo);
public virtual void Stop()
{
IsStopped = true;
for (var i = 0; i < Listeners.Count; i++)
{
var listener = Listeners[i];
listener.Stop();
}
Listeners.Clear();
// Clean the attached server resources
if (m_ServerResources != null)
{
Parallel.ForEach(m_ServerResources, (r) => r.Rollback());
}
IsRunning = false;
}
void IAsyncSocketEventComplete.HandleSocketEventComplete(object sender, SocketAsyncEventArgs e)
{
var userToken = e.UserToken as SaeState;
var socketSession = userToken.SocketSession as IAsyncSocketSession;
socketSession.ProcessReceive(e);
}
#region IDisposable Members
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (IsRunning)
Stop();
}
}
#endregion
}
}