private void CloseClientSocket(SocketAsyncEventArgs e)
{
AsyncUserToken token = e.UserToken as AsyncUserToken;
try
{
token.UserSocket.Shutdown(SocketShutdown.Send);
}
catch (Exception) { }
dicSAEA.Remove(token.UserSocket.RemoteEndPoint.ToString());
token.UserSocket.Close();
maxClient.Release();
rwPool.Push(e);
}
/// <summary>
/// 接收消息回调处理
/// </summary>
/// <param name="e"></param>
public void OnReceiveCompleted(SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success)
{
return; //判断消息的接收状态
}
AsyncUserToken token = e.UserToken as AsyncUserToken;
int lengthBuffer = e.BytesTransferred; //获取接收的字节长度
string ipAddress = token.UserSocket.RemoteEndPoint.ToString();
MessageFormat msg = new MessageFormat();
//如果接收的字节长度为0，则判断远端服务器关闭连接
if (lengthBuffer <= 0)
{
msg.msgStr = "远端服务器已经断开连接";
msg.ipStr = ipAddress;
if (OnDisconnectEvent != null)
{
OnDisconnectEvent(msg);
}
CloseClientSocket(e);
}
else
{
byte[] receiveBuffer = e.Buffer;
byte[] buffer = new byte[lengthBuffer];
Buffer.BlockCopy(receiveBuffer, 0, buffer, 0, lengthBuffer);
msg.msgStr = Encoding.Unicode.GetString(buffer);
msg.ipStr = ipAddress;
bool willRaiseEvent = token.UserSocket.ReceiveAsync(e); //继续异步接收消息
if (!willRaiseEvent)
{
OnReceiveCompleted(e);
}
if (OnReceiveCompletedEvent != null)
{
OnReceiveCompletedEvent(msg); //调用UI方法处理
}
}
}