SuperSocket中的Server是如何初Start的

第一个函数

d:sourcecodegithubsupersocketquickstartasic elnetserver_startbyconfigprogram.cs

 static void Main(string[] args)
        {
            Console.WriteLine("Press any key to start the server!");

            Console.ReadKey();
            Console.WriteLine();

            var bootstrap = BootstrapFactory.CreateBootstrap();

            if (!bootstrap.Initialize())
            {
                Console.WriteLine("Failed to initialize!");
                Console.ReadKey();
                return;
            }

            var result = bootstrap.Start();

            Console.WriteLine("Start result: {0}!", result);

            if (result == StartResult.Failed)
            {
                Console.WriteLine("Failed to start!");
                Console.ReadKey();
                return;
            }

            Console.WriteLine("Press key 'q' to stop it!");

            while (Console.ReadKey().KeyChar != 'q')
            {
                Console.WriteLine();
                continue;
            }

            Console.WriteLine();

            //Stop the appServer
            bootstrap.Stop();

            Console.WriteLine("The server was stopped!");
        }

第二个函数

d:sourcecodegithubsupersocketsocketenginedefaultbootstrap.cs

 /// <summary>
        /// Starts this bootstrap.
        /// </summary>
        /// <returns></returns>
        public StartResult Start()
        {
            if (!m_Initialized)
            {
                if (m_GlobalLog.IsErrorEnabled)
                    m_GlobalLog.Error("You cannot invoke method Start() before initializing!");

                return StartResult.Failed;
            }

            var result = StartResult.None;

            var succeeded = 0;

            foreach (var server in m_AppServers)
            {
                if (!server.Start())
                {
                    if (m_GlobalLog.IsErrorEnabled)
                        m_GlobalLog.InfoFormat("The server instance {0} has failed to be started!", server.Name);
                }
                else
                {
                    succeeded++;

                    if (Config.Isolation != IsolationMode.None)
                    {
                        if (m_GlobalLog.IsInfoEnabled)
                            m_GlobalLog.InfoFormat("The server instance {0} has been started!", server.Name);
                    }
                }
            }

            if (m_AppServers.Any())
            {
                if (m_AppServers.Count == succeeded)
                    result = StartResult.Success;
                else if (succeeded == 0)
                    result = StartResult.Failed;
                else
                    result = StartResult.PartialSuccess;
            }

            if (m_PerfMonitor != null)
            {
                m_PerfMonitor.Start();

                if (m_GlobalLog.IsDebugEnabled)
                    m_GlobalLog.Debug("The PerformanceMonitor has been started!");
            }

            return result;
        }

 第三个函数

d:sourcecodegithubsupersocketsocketbaseappserver.cs

  /// <summary>
        /// Starts this AppServer instance.
        /// </summary>
        /// <returns></returns>
        public override bool Start()
        {
            if (!base.Start())
                return false;

            if (!Config.DisableSessionSnapshot)
                StartSessionSnapshotTimer();

            if (Config.ClearIdleSession)
                StartClearSessionTimer();

            return true;
        }

第四个函数

d:sourcecodegithubsupersocketsocketbaseappserverbase.cs

 /// <summary>
        /// Starts this server instance.
        /// </summary>
        /// <returns>
        /// return true if start successfull, else false
        /// </returns>
        public virtual bool Start()
        {
            var origStateCode = Interlocked.CompareExchange(ref m_StateCode, ServerStateConst.Starting, ServerStateConst.NotStarted);

            if (origStateCode != ServerStateConst.NotStarted)
            {
                if (origStateCode < ServerStateConst.NotStarted)
                    throw new Exception("You cannot start a server instance which has not been setup yet.");

                if (Logger.IsErrorEnabled)
                    Logger.ErrorFormat("This server instance is in the state {0}, you cannot start it now.", (ServerState)origStateCode);

                return false;
            }

            if (!m_SocketServer.Start())
            {
                m_StateCode = ServerStateConst.NotStarted;
                return false;
            }

            StartedTime = DateTime.Now;
            m_StateCode = ServerStateConst.Running;

            m_ServerStatus[StatusInfoKeys.IsRunning] = true;
            m_ServerStatus[StatusInfoKeys.StartedTime] = StartedTime;

            try
            {
                //Will be removed in the next version
#pragma warning disable 0612, 618
                OnStartup();
#pragma warning restore 0612, 618

                OnStarted();
            }
            catch (Exception e)
            {
                if (Logger.IsErrorEnabled)
                {
                    Logger.Error("One exception wa thrown in the method 'OnStartup()'.", e);
                }
            }
            finally
            {
                if (Logger.IsInfoEnabled)
                    Logger.Info(string.Format("The server instance {0} has been started!", Name));
            }

            return true;
        }

第五个函数

D:SourceCodeGitHubSuperSocketSocketEngineAsyncSocketServer.cs

public override bool Start()
        {
            try
            {
                int bufferSize = AppServer.Config.ReceiveBufferSize;

                if (bufferSize <= 0)
                    bufferSize = 1024 * 4;

                m_BufferManager = new BufferManager(bufferSize * AppServer.Config.MaxConnectionNumber, bufferSize);

                try
                {
                    m_BufferManager.InitBuffer();
                }
                catch (Exception e)
                {
                    AppServer.Logger.Error("Failed to allocate buffer for async socket communication, may because there is no enough memory, please decrease maxConnectionNumber in configuration!", e);
                    return false;
                }

                // preallocate pool of SocketAsyncEventArgs objects
                SocketAsyncEventArgs socketEventArg;

                var socketArgsProxyList = new List<SocketAsyncEventArgsProxy>(AppServer.Config.MaxConnectionNumber);

                for (int i = 0; i < AppServer.Config.MaxConnectionNumber; i++)
                {
                    //Pre-allocate a set of reusable SocketAsyncEventArgs
                    socketEventArg = new SocketAsyncEventArgs();
                    m_BufferManager.SetBuffer(socketEventArg);

                    socketArgsProxyList.Add(new SocketAsyncEventArgsProxy(socketEventArg));
                }

                m_ReadWritePool = new ConcurrentStack<SocketAsyncEventArgsProxy>(socketArgsProxyList);

                if (!base.Start())
                    return false;

                IsRunning = true;
                return true;
            }
            catch (Exception e)
            {
                AppServer.Logger.Error(e);
                return false;
            }
        }

 第六个函数

d:sourcecodegithubsupersocketsocketenginesocketserverbase.cs

 public virtual bool Start()
        {
            IsStopped = false;

            ILog log = AppServer.Logger;

            var config = AppServer.Config;

            var sendingQueuePool = new SmartPool<SendingQueue>();
            sendingQueuePool.Initialize(Math.Max(config.MaxConnectionNumber / 6, 256),
                    Math.Max(config.MaxConnectionNumber * 2, 256),
                    new SendingQueueSourceCreator(config.SendingQueueSize));

            SendingQueuePool = sendingQueuePool;

            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;
                }
            }

            IsRunning = true;
            return true;
        }

第七个函数

D:SourceCodeGitHubSuperSocketSocketEngineTcpAsyncSocketListener.cs

/// <summary>
        /// Starts to listen
        /// </summary>
        /// <param name="config">The server config.</param>
        /// <returns></returns>
        public override bool Start(IServerConfig config)
        {
            m_ListenSocket = new Socket(this.Info.EndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

            try
            {
                m_ListenSocket.Bind(this.Info.EndPoint);
                m_ListenSocket.Listen(m_ListenBackLog);

                m_ListenSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
                m_ListenSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, true);

                SocketAsyncEventArgs acceptEventArg = new SocketAsyncEventArgs();
                m_AcceptSAE = acceptEventArg;
                acceptEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(acceptEventArg_Completed);

                if (!m_ListenSocket.AcceptAsync(acceptEventArg))
                    ProcessAccept(acceptEventArg);

                return true;

            }
            catch (Exception e)
            {
                OnError(e);
                return false;
            }
        }