/* 这是一个单独线程函数*/
private void DoSendMsg()
{
while (!_HasError && _KeepRunning)
{
D("do sendMsg before");
_SendThreadAutoResetEvent.WaitOne();
lock (_SendMsgLock)
{
D("do sendMsg after");
if (_TcpNetworkStream == null || mSendByte == null || _HasError || !_HasInit)
{
continue;
}
try
{
_TcpNetworkStream.Write(mSendByte, 0, mSendByte.Length);
mSendByte = null;
}
catch (Exception e)
{
D("tcpcmd Do SendMsg error " + e.ToString());
_HasError = true;
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_SEND_MSG_ERROR, "SEND MSG ERROR");
}
}
}
D("tcpcmd Do SendMsg error , end of send thread");
}
private bool DoInit()
{
var b = false;
try
{
_TcpCmdClient?.Close();
_TcpCmdClient = new TcpClient();
D("create TcpClient instance");
D("TCP begain connect:" + DateTime.Now);
_TcpCmdClient.Connect(_PcbTcpServerEndPoint);
D("Tcp end connect:" + DateTime.Now);
_TcpCmdClient.NoDelay = true;
_TcpNetworkStream = _TcpCmdClient.GetStream();
// 当有多个网卡时,用于区别是哪个网卡起的作用.
IPEndPoint iep = (IPEndPoint)_TcpCmdClient.Client.LocalEndPoint;
ProgramInfo.PCIPaddr = iep.Address.ToString();
}
catch (Exception e)
{
D("tcp connect error " + e);
}
try
{
b = _TcpCmdClient.Connected;
}
catch
{
b = false;
}
D("TcpClinet : " + b);
if (b)
{
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_CONNECT_OK, "TCP_CONNECT_OK");
_HasInit = true;
_HasError = false;
_ThreadTcpSend = new Thread(new ThreadStart(DoSendMsg));
_ThreadTcpSend.Name = "tcpsend " + DateTime.Now;
_ThreadTcpSend.Start();
}
else
{
_HasInit = false;
_HasError = true;
}
return(b);
}
private void _f()
{
if (mHelloMsg)
{
string message = "{\"msgtype\": \"hello\"}";
Byte[] data = System.Text.Encoding.UTF8.GetBytes(message);
_TcpNetworkStream.Write(data, 0, data.Length);
String responseData = String.Empty;
data = new byte[100];
int len = _TcpNetworkStream.Read(data, 0, data.Length);
D(".receive : " + System.Text.Encoding.UTF8.GetString(data, 0, len));
mHelloMsg = false;
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_CONNECT_OK, "hello");
}
}
/* 这是一个单独线程函数*/
public void DoInitAndReceiv()
{
while (_KeepRunning)
{
if (!_HasInit || _HasError && _KeepRunning)
{
DoInit();
}
// receive .
if (_HasInit && !_HasError && _KeepRunning)
{
string receivemsg = "";
try
{
ReceiveLen = _TcpNetworkStream.Read(mReceive, 0, mReceive.Length);
receivemsg = Encoding.UTF8.GetString(mReceive, 0, ReceiveLen);
D("receive msg len " + ReceiveLen);
if (ReceiveLen < 1)
{ //we get a eeor.
D("receive msg len " + ReceiveLen + " may be error");
_HasError = true;
}
else
{
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_RECEIVE_MSG, receivemsg);
}
}
catch
{
D("tcpcmd Do receive error");
_HasError = true;
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_RECV_MSG_ERROR, "RECV MSG ERROR");
}
}
if (_HasError && _KeepRunning)
{
// 如果有错,先回收res,等3S,再试, 只考虑一台设备的情况
TcpStatusChangeHandler?.Invoke(CONNECT_STATUS.TCP_CONNECT_ERROR, "TCP_CONNECT_ERROR");
ReleaseTcp(false);
D("TcpClient get a error wait 3s");
Thread.Sleep(3000);
}
}
}