public void run()
{
int sendstarttime = 0;
while (m_running)
{
try
{
Thread.Sleep(0);
// wait for response
switch (m_state)
{
case TestingState.eSendMessage:
sendstarttime = GetTimerValue(); // mark the time we sent the message
try
{
m_serialport.Write(QUERYSTRING); // send the query string
m_state = TestingState.eWaitForReply; // go to the waiting state
}
catch (Exception) // check to see if the write failed
{
m_result = eConnTestStatus.eWriteError;
if (ConnectionTesterStatusEvent != null)
{
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
break;
case TestingState.eWaitForReply:
//check for timeout
if (GetTimerValue() > (sendstarttime + TIMEOUTVAL))
{
m_result = eConnTestStatus.eNoResponse; // we timed out
if (ConnectionTesterStatusEvent != null) // raise the result
{
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
break;
case TestingState.eExiting:
m_running = false; // signal to exit this thread
if (m_serialport.IsOpen)
{
m_serialport.Close();
}
break;
}
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}
}
void ParseResults(string data)
{
if (data.Contains("X:") && data.Contains("Y:") && data.Contains("Z:"))
{
// we received the position, we're done here
if (ConnectionTesterStatusEvent != null)
{
m_result = eConnTestStatus.eDeviceResponded;
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
}
public void Start()
{
m_strb = "";
bool erroropen = false;
m_thread = new Thread(new ThreadStart(run));
m_serialport = new SerialPort();
m_serialport.BaudRate = m_baud;
m_serialport.DataBits = 8;
m_serialport.Parity = Parity.None;
m_serialport.Handshake = Handshake.None;
m_serialport.PortName = m_portname;
//set up a listener to receive data
m_serialport.DataReceived += new SerialDataReceivedEventHandler(m_serialport_DataReceived);
// try to open the port now.
try
{
m_serialport.Open();
}
catch (Exception)
{
erroropen = true;
}
// check to see if there was an error, or the port is not open
if (erroropen || m_serialport.IsOpen == false)
{
DebugLogger.Instance().LogInfo("Error opening serial port " + m_portname);
// couldn't open port for some reason, set return result
m_result = eConnTestStatus.eOpenFailure;
if (ConnectionTesterStatusEvent != null)
{
ConnectionTesterStatusEvent(this, m_result);
return; // exit and don't start the thread
}
}
//if we're here, the port is open, let's try to send some data
m_state = TestingState.eSendMessage; // go to the send message state
m_thread.Start();
m_running = true;
}
public void run()
{
int sendstarttime = 0;
while (m_running)
{
try
{
Thread.Sleep(0);
// wait for response
switch (m_state)
{
case TestingState.eSendMessage:
sendstarttime = GetTimerValue(); // mark the time we sent the message
try
{
m_serialport.Write(QUERYSTRING); // send the query string
m_state = TestingState.eWaitForReply; // go to the waiting state
}
catch (Exception) // check to see if the write failed
{
m_result = eConnTestStatus.eWriteError;
if (ConnectionTesterStatusEvent != null)
{
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
break;
case TestingState.eWaitForReply:
//check for timeout
if (GetTimerValue() > (sendstarttime + TIMEOUTVAL))
{
m_result = eConnTestStatus.eNoResponse; // we timed out
if (ConnectionTesterStatusEvent != null) // raise the result
{
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
break;
case TestingState.eExiting:
m_running = false; // signal to exit this thread
if (m_serialport.IsOpen)
m_serialport.Close();
break;
}
}
catch (Exception ex)
{
DebugLogger.Instance().LogError(ex);
}
}
}
void ParseResults(string data)
{
if (data.Contains("X:") && data.Contains("Y:") && data.Contains("Z:"))
{
// we received the position, we're done here
if (ConnectionTesterStatusEvent != null)
{
m_result = eConnTestStatus.eDeviceResponded;
ConnectionTesterStatusEvent(this, m_result);
m_state = TestingState.eExiting; // we're done here..
}
}
}
public void Start()
{
m_strb = "";
bool erroropen = false;
m_thread = new Thread(new ThreadStart(run));
m_serialport = new SerialPort();
m_serialport.BaudRate = m_baud;
m_serialport.DataBits = 8;
m_serialport.Parity = Parity.None;
m_serialport.Handshake = Handshake.None;
m_serialport.PortName = m_portname;
//set up a listener to receive data
m_serialport.DataReceived += new SerialDataReceivedEventHandler(m_serialport_DataReceived);
// try to open the port now.
try
{
m_serialport.Open();
}
catch (Exception)
{
erroropen = true;
}
// check to see if there was an error, or the port is not open
if (erroropen || m_serialport.IsOpen == false)
{
DebugLogger.Instance().LogInfo("Error opening serial port " + m_portname);
// couldn't open port for some reason, set return result
m_result = eConnTestStatus.eOpenFailure;
if (ConnectionTesterStatusEvent != null)
{
ConnectionTesterStatusEvent(this, m_result);
return; // exit and don't start the thread
}
}
//if we're here, the port is open, let's try to send some data
m_state = TestingState.eSendMessage; // go to the send message state
m_thread.Start();
m_running = true;
}
