/// <summary>
/// 数据接收处理函数
/// </summary>
/// <param name="iar">异步Socket</param>
protected virtual void RecvData(IAsyncResult iar)
{
Socket remote = (Socket)iar.AsyncState;
try
{
int recv = remote.EndReceive(iar);
if (recv == 0)
{
_session.TypeOfExit = Session.ExitType.NormalExit;
if (DisConnectedServer != null)
{
DisConnectedServer(this, new NetEventArgs(_session));
}
return;
}
string receivedData = _coder.GetEncodingString(_recvDataBuffer, recv);
//通过事件发布收到的报文
if (ReceivedDatagram != null)
{
if (_resolver != null)
{
if (_session.Datagram != null && _session.Datagram.Length != 0)
{
receivedData = _session.Datagram + receivedData;
}
string[] recvDatagrams = _resolver.Resolve(ref receivedData);
foreach (string newDatagram in recvDatagrams)
{
ICloneable copySession = (ICloneable)_session;
Session clientSession = (Session)copySession.Clone();
clientSession.Datagram = newDatagram;
//发布一个报文消息
ReceivedDatagram(this, new NetEventArgs(clientSession));
}
//剩余的代码片断,下次接收的时候使用
_session.Datagram = receivedData;
}
else
{
ICloneable copySession = (ICloneable)_session;
Session clientSession = (Session)copySession.Clone();
clientSession.Datagram = receivedData;
ReceivedDatagram(this, new NetEventArgs(clientSession));
}
}//end of if(ReceivedDatagram != null)
//继续接收数据
_session.ClientSocket.BeginReceive(_recvDataBuffer, 0, DefaultBufferSize, SocketFlags.None,
new AsyncCallback(RecvData), _session.ClientSocket);
}
catch (SocketException ex)
{
//客户端退出
if (10054 == ex.ErrorCode)
{
_session.TypeOfExit = Session.ExitType.ExceptionExit;
if (DisConnectedServer != null)
{
DisConnectedServer(this, new NetEventArgs(_session));
}
}
else
{
throw (ex);
}
}
catch (ObjectDisposedException ex)
{
if (ex != null)
{
ex = null;
//DoNothing;
}
}
}
/// <summary>
/// 接受数据完成处理函数，异步的特性就体现在这个函数中，
/// 收到数据后，会自动解析为字符串报文
/// </summary>
/// <param name="iar">目标客户端Socket</param>
protected virtual void ReceiveData(IAsyncResult iar)
{
Session sendDataSession = (Session)iar.AsyncState;
Socket client = sendDataSession.ClientSocket;
try
{
//如果两次开始了异步的接收,所以当客户端退出的时候
//会两次执行EndReceive
int recv = client.EndReceive(iar);
if (recv == 0)
{
CloseClient(client, Session.ExitType.NormalExit);
return;
}
string receivedData = _coder.GetEncodingString(sendDataSession.RecvDataBuffer, recv);
//string receivedData = _coder.GetEncodingString(_recvDataBuffer, recv);
//发布收到数据的事件
if (RecvData != null)
{
//Session sendDataSession = FindSession(client);
Debug.Assert(sendDataSession != null);
if (_resolver != null)
{
if (sendDataSession.Datagram != null && sendDataSession.Datagram.Length != 0)
{
receivedData = sendDataSession.Datagram + receivedData;
}
string[] recvDatagrams = _resolver.Resolve(ref receivedData);
foreach (string newDatagram in recvDatagrams)
{
ICloneable copySession = (ICloneable)sendDataSession;
Session clientSession = (Session)copySession.Clone();
string strDatagram = newDatagram;
//clientSession.ClassName = this.GetClassFullName(ref strDatagram);
clientSession.Datagram = strDatagram;
//发布一个报文消息
RecvData(this, new NetEventArgs(clientSession));
}
//剩余的代码片断,下次接收的时候使用
sendDataSession.Datagram = receivedData;
if (sendDataSession.Datagram.Length > MaxDatagramSize)
{
sendDataSession.Datagram = null;
}
}
else
{
ICloneable copySession = (ICloneable)sendDataSession;
Session clientSession = (Session)copySession.Clone();
//clientSession.ClassName = this.GetClassFullName(ref receivedData);
clientSession.Datagram = receivedData;
RecvData(this, new NetEventArgs(clientSession));
}
}
//继续接收来自来客户端的数据
client.BeginReceive(sendDataSession.RecvDataBuffer, 0, sendDataSession.RecvDataBuffer.Length, SocketFlags.None,
new AsyncCallback(ReceiveData), sendDataSession);
}
catch (SocketException ex)
{
if (10054 == ex.ErrorCode)
{
//客户端强制关闭
CloseClient(client, Session.ExitType.ExceptionExit);
}
}
catch (ObjectDisposedException ex)
{
if (ex != null)
{
ex = null;
//DoNothing;
}
}
}
