private static void ReadCallBack(IAsyncResult iar)
{
IoState state = iar.AsyncState as IoState;
int NumOfBytesRead = 0;
try
{
NumOfBytesRead = state.EndRead(iar);
if (NumOfBytesRead > 0)
{
NumOfBytesRead = state.ReadData(NumOfBytesRead);
byte[] buffer = new byte[NumOfBytesRead];
Array.Copy(state.GetBuffer(), buffer, NumOfBytesRead);
state.mHeader.MessageReceived(state, buffer);
state.BeginRead();
}
else
{
state.mHeader.ConnectClosed(state.GetPID(), state.GetSID()); //连接断开
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
state.mHeader.ConnectClosed(state.GetPID(), state.GetSID()); //连接断开
}
}
private void DoConnectCallBack(IAsyncResult ar)
{
try
{
mClient.EndConnect(ar);
mIoState = new IoClientState(this, mBufferSize, mClient);
mIoState.SetStream(mClient.GetStream());
mHeader.SessionOpened(this);
mIoState.BeginRead();
}
catch (Exception ex)
{
mHeader.SessionException(this, ex);
}
}
public void Start()
{
if (!mSerialPort.IsOpen)
{
try
{
mSerialPort.Open();
mSerialPort.DiscardOutBuffer();
mSerialPort.DiscardInBuffer();
mHeader.SessionOpened(this); //串口打开消息
Stream stream = mSerialPort.BaseStream;
stream.ReadTimeout = GetReadTimeout(); //设置读超时
mIoState = new IoSerialState(this, stream, mBufferSize, mSerialPort);
mIoState.BeginRead();
}
catch (Exception ex)
{
mHeader.SessionException(this, ex);
}
}
}
