private void Bind(Socket acceptSocket)
{
var exSocket = new TNSocket(acceptSocket);
exSocket.LastAccessTime = DateTime.Now;
var buffer = new byte[this.clientSettings.BufferSize * 2];
this.sendEventArg = new SocketAsyncEventArgs();
this.sendEventArg.SetBuffer(buffer, 0, this.clientSettings.BufferSize);
var sendDataToken = new DataToken()
{
Socket = exSocket
};
sendDataToken.bufferOffset = this.sendEventArg.Offset;
this.sendEventArg.UserToken = sendDataToken;
this.sendEventArg.AcceptSocket = acceptSocket;
this.sendEventArg.Completed += new EventHandler <SocketAsyncEventArgs>(IO_Completed);
this.receiveEventArg = new SocketAsyncEventArgs();
this.receiveEventArg.SetBuffer(buffer, this.clientSettings.BufferSize, this.clientSettings.BufferSize);
var receiveDataToken = new DataToken {
Socket = exSocket, SyncSegments = new Queue <ArraySegment <byte> >()
};
receiveDataToken.bufferOffset = this.receiveEventArg.Offset;
this.receiveEventArg.UserToken = receiveDataToken;
this.receiveEventArg.AcceptSocket = acceptSocket;
this.receiveEventArg.Completed += new EventHandler <SocketAsyncEventArgs>(IO_Completed);
if (IsSyncReceived)
{
DataReceived += OnReceived;
}
requestHandler.Bind(this);
}
private void TryDequeueAndPostSend(TNSocket socket, SocketAsyncEventArgs ioEventArgs)
{
SocketAsyncResult result;
if (socket.TryDequeueOrReset(out result))
{
DataToken dataToken = (DataToken)ioEventArgs.UserToken;
dataToken.Socket = socket;
dataToken.AsyncResult = result;
dataToken.byteArrayForMessage = result.Data;
dataToken.messageLength = result.Data.Length;
try
{
PostSend(ioEventArgs);
}
catch (Exception ex)
{
dataToken.ResultCallback(ResultCode.Error, ex);
ResetSendFlag();
}
}
else
{
//ResetSendFlag();
}
}
/// <summary>
///
/// </summary>
/// <param name="exSocket"></param>
/// <param name="opCode"></param>
/// <param name="reason"></param>
protected void Dispose(TNSocket exSocket, sbyte opCode, string reason)
{
try
{
var e = new SocketEventArgs()
{
Socket = exSocket,
Source = new DataMessage()
{
OpCode = opCode, Message = reason
}
};
DoClosed(e);
OnDisconnected(e);
if (exSocket != null)
{
exSocket.Close();
}
sendEventArg.Dispose();
receiveEventArg.Dispose();
receiveWaitEvent.Dispose();
socketClient.Dispose();
}
catch (Exception ex)
{
TraceLog.WriteError("Dispose connect of client error:{0}", ex);
}
}
/// <summary>
///
/// </summary>
/// <param name="exSocket"></param>
/// <param name="opCode"></param>
/// <param name="data"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <returns></returns>
public override byte[] BuildMessagePack(TNSocket exSocket, sbyte opCode, byte[] data, int offset, int count)
{
byte[] buffer = new byte[count + 4];
Buffer.BlockCopy(BitConverter.GetBytes(count), 0, buffer, 0, 4);
Buffer.BlockCopy(data, offset, buffer, 4, count);
return(buffer);//buffer;
}
private void DoClosedStatus(TNSocket socket, int statusCode)
{
Action <TNSocket, int> handler = OnClosedStatus;
if (handler != null)
{
handler(socket, statusCode);
}
}
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="opCode"></param>
/// <param name="reason"></param>
public virtual void SendCloseHandshake(TNSocket socket, sbyte opCode, string reason)
{
if (MessageProcessor != null)
{
byte[] data = MessageProcessor.CloseMessage(socket, opCode, reason);
if (data != null)
{
AppServer.SendAsync(socket, data, result => { });
}
}
}
private void ProcessAccept(SocketAsyncEventArgs acceptEventArgs)
{
try
{
Interlocked.Increment(ref _summaryStatus.TotalConnectCount);
maxConnectionsEnforcer.WaitOne();
if (acceptEventArgs.SocketError != SocketError.Success)
{
Interlocked.Increment(ref _summaryStatus.RejectedConnectCount);
HandleBadAccept(acceptEventArgs);
}
else
{
Interlocked.Increment(ref _summaryStatus.CurrentConnectCount);
SocketAsyncEventArgs ioEventArgs = this.ioEventArgsPool.Pop();
ioEventArgs.AcceptSocket = acceptEventArgs.AcceptSocket;
var dataToken = (DataToken)ioEventArgs.UserToken;
ioEventArgs.SetBuffer(dataToken.bufferOffset, socketSettings.BufferSize);
var exSocket = new TNSocket(ioEventArgs.AcceptSocket);
exSocket.LastAccessTime = DateTime.Now;
dataToken.Socket = exSocket;
acceptEventArgs.AcceptSocket = null;
//release connect when socket has be closed.
ReleaseAccept(acceptEventArgs, false);
try
{
OnConnected(new ConnectionEventArgs {
Socket = exSocket
});
}
catch (Exception ex)
{
TraceLog.WriteError("OnConnected error:{0}", ex);
}
PostReceive(ioEventArgs);
}
}
finally
{
PostAccept();
}
}
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="buffer"></param>
/// <param name="callback"></param>
internal protected override async Task <bool> SendAsync(TNSocket socket, byte[] buffer, Action <SocketAsyncResult> callback)
{
//socket.Enqueue(buffer, callback);
if (socket.DirectSendOrEnqueue(buffer, callback))
{
try
{
TryDequeueAndPostSend(socket, sendEventArg);
return(true);
}
catch (Exception ex)
{
ResetSendFlag();
TraceLog.WriteError("SendAsync {0} error:{1}", socket.RemoteEndPoint, ex);
}
}
return(false);
}
private void TryDequeueAndPostSend(TNSocket socket, SocketAsyncEventArgs ioEventArgs)
{
bool isOwner = ioEventArgs == null;
SocketAsyncResult result;
if (socket.TryDequeueOrReset(out result))
{
if (ioEventArgs == null)
{
ioEventArgs = ioEventArgsPool.Pop();
ioEventArgs.AcceptSocket = socket.WorkSocket;
}
DataToken dataToken = (DataToken)ioEventArgs.UserToken;
dataToken.Socket = socket;
dataToken.AsyncResult = result;
dataToken.byteArrayForMessage = result.Data;
dataToken.messageLength = result.Data.Length;
try
{
PostSend(ioEventArgs);
}
catch (Exception ex)
{
dataToken.ResultCallback(ResultCode.Error, ex);
if (isOwner)
{
ReleaseIOEventArgs(ioEventArgs);
}
socket.ResetSendFlag();
}
}
else
{
ReleaseIOEventArgs(ioEventArgs);
//socket.ResetSendFlag();
}
}
/// <summary>
/// Posts the send.
/// </summary>
/// <param name="socket"></param>
/// <param name="opCode"></param>
/// <param name="data">Data.</param>
/// <param name="offset">Offset.</param>
/// <param name="count">Count.</param>
/// <param name="callback"></param>
public override async Task PostSend(TNSocket socket, sbyte opCode, byte[] data, int offset, int count, Action <SocketAsyncResult> callback)
{
byte[] buffer = requestHandler.MessageProcessor.BuildMessagePack(socket, opCode, data, offset, count);
await SendAsync(socket, buffer, callback);
}
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="opCode"></param>
/// <param name="data"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
public override async Task PostSend(TNSocket socket, sbyte opCode, byte[] data, int offset, int count)
{
await PostSend(socket, opCode, data, offset, count, result => { });
}
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="data"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
public override async Task PostSend(TNSocket socket, byte[] data, int offset, int count)
{
await PostSend(socket, OpCode.Binary, data, offset, count);
}
/// <summary> /// /// </summary> /// <param name="socket"></param> /// <param name="opCode"></param> /// <param name="data"></param> /// <param name="offset"></param> /// <param name="count"></param> /// <param name="callback"></param> public abstract Task PostSend(TNSocket socket, sbyte opCode, byte[] data, int offset, int count, Action <SocketAsyncResult> callback);
/// <summary> /// /// </summary> /// <param name="socket"></param> public abstract void Pong(TNSocket socket);
/// <summary>
///
/// </summary>
/// <param name="exSocket"></param>
/// <param name="opCode"></param>
/// <param name="reason"></param>
public override byte[] CloseMessage(TNSocket exSocket, sbyte opCode, string reason)
{
return(null);
}
/// <summary> /// /// </summary> /// <param name="exSocket"></param> /// <param name="opCode"></param> /// <param name="data"></param> /// <param name="offset"></param> /// <param name="count"></param> /// <returns></returns> public abstract byte[] BuildMessagePack(TNSocket exSocket, sbyte opCode, byte[] data, int offset, int count);
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="buffer"></param>
/// <param name="callback"></param>
public void SendMessage(TNSocket socket, byte[] buffer, Action <SocketAsyncResult> callback)
{
AppServer.SendAsync(socket, buffer, callback);
}
/// <summary> /// /// </summary> /// <param name="socket"></param> /// <param name="opCode"></param> /// <param name="data"></param> /// <param name="offset"></param> /// <param name="count"></param> public abstract Task PostSend(TNSocket socket, sbyte opCode, byte[] data, int offset, int count);
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="reason"></param>
public override void CloseHandshake(TNSocket socket, string reason)
{
requestHandler.SendCloseHandshake(socket, OpCode.Close, reason);
}
/// <summary>
/// 处理数据接收回调
/// </summary>
/// <param name="ioEventArgs"></param>
private void ProcessReceive(SocketAsyncEventArgs ioEventArgs)
{
DataToken dataToken = (DataToken)ioEventArgs.UserToken;
if (ioEventArgs.BytesTransferred == 0)
{
//对方主动关闭socket
//if (logger.IsDebugEnabled) logger.Debug("对方关闭Socket");
Closing(ioEventArgs, OpCode.Empty);
return;
}
if (ioEventArgs.SocketError != SocketError.Success)
{//Socket错误
TraceLog.Write("ProcessReceive IP {0} SocketError:{1}, bytes len:{2}",
(dataToken != null ? dataToken.Socket.RemoteEndPoint.ToNotNullString() : ""),
ioEventArgs.SocketError.ToString(),
ioEventArgs.BytesTransferred);
Closing(ioEventArgs);
return;
}
TNSocket exSocket = dataToken == null ? null : dataToken.Socket;
List <DataMessage> messages;
bool hasHandshaked;
bool needPostAnother = requestHandler.TryReceiveMessage(ioEventArgs, out messages, out hasHandshaked);
if (hasHandshaked)
{
OnHandshaked(new ConnectionEventArgs {
Socket = exSocket
});
}
//modify reason:数据包接收事件触发乱序
if (messages != null)
{
foreach (var message in messages)
{
try
{
switch (message.OpCode)
{
case OpCode.Close:
var statusCode = requestHandler.MessageProcessor != null
? requestHandler.MessageProcessor.GetCloseStatus(message.Data)
: OpCode.Empty;
if (statusCode != OpCode.Empty)
{
DoClosedStatus(exSocket, statusCode);
}
Closing(ioEventArgs, OpCode.Empty);
needPostAnother = false;
break;
case OpCode.Ping:
DoPing(new ConnectionEventArgs {
Socket = exSocket, Message = message
});
break;
case OpCode.Pong:
DoPong(new ConnectionEventArgs {
Socket = exSocket, Message = message
});
break;
default:
OnDataReceived(new ConnectionEventArgs {
Socket = exSocket, Message = message
});
break;
}
}
catch (Exception ex)
{
TraceLog.WriteError("OnDataReceived error:{0}", ex);
}
}
}
if (needPostAnother)
{
PostReceive(ioEventArgs);
//是否需要关闭连接
if (exSocket.IsClosed)
{
ResetSAEAObject(ioEventArgs);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
public override void Pong(TNSocket socket)
{
byte[] data = Encoding.UTF8.GetBytes("pong");
PostSend(socket, OpCode.Pong, data, 0, data.Length);
}
/// <summary> /// /// </summary> /// <param name="socket"></param> /// <param name="reason"></param> public abstract void CloseHandshake(TNSocket socket, string reason);
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="reason"></param>
public override void CloseHandshake(TNSocket socket, string reason)
{
Dispose(socket, OpCode.Close, reason);
}
/// <summary> /// /// </summary> /// <param name="exSocket"></param> /// <param name="opCode"></param> /// <param name="reason"></param> public abstract byte[] CloseMessage(TNSocket exSocket, sbyte opCode, string reason);
/// <summary>
///
/// </summary>
/// <param name="socket"></param>
/// <param name="message"></param>
/// <param name="encoding"></param>
/// <param name="callback"></param>
public void SendMessage(TNSocket socket, string message, Encoding encoding, Action <SocketAsyncResult> callback)
{
byte[] buffer = encoding.GetBytes(message);
SendMessage(socket, buffer, callback);
}
/// <summary> /// not proccess buildpack /// </summary> /// <param name="socket"></param> /// <param name="buffer"></param> /// <param name="callback"></param> protected internal abstract Task <bool> SendAsync(TNSocket socket, byte[] buffer, Action <SocketAsyncResult> callback);