public void TcpOnRecievedData(IAsyncResult ar)
{
String sGPS;
// Get The connection socket from the callback
TCPSockets tcpSockets = (TCPSockets)ar.AsyncState;
try
{
// Get The data , if any
int nBytesRec = tcpSockets.socket.EndReceive(ar);
if (nBytesRec > 0)
{
sGPS = System.Text.Encoding.ASCII.GetString(tcpSockets.byTcpBuffer, 0, nBytesRec);
try
{
if (m_GpsTracker.m_MessageMonitor != null)
{
m_GpsTracker.m_MessageMonitor.AddMessageTCPUDPRaw(sGPS);
}
}
catch (Exception)
{
m_GpsTracker.m_MessageMonitor = null;
}
tcpSockets.sStream += sGPS;
int iIndex = -1;
char [] cEOL = { '\n', '\r' };
string sData = "";
do
{
iIndex = tcpSockets.sStream.IndexOfAny(cEOL);
if (iIndex >= 0)
{
sData = tcpSockets.sStream.Substring(0, iIndex);
sData = sData.Trim(cEOL);
tcpSockets.sStream = tcpSockets.sStream.Remove(0, iIndex + 1);
if (sData != "")
{
m_GpsTracker.ShowGPSIcon(sData.ToCharArray(), sData.Length, false, tcpSockets.iDeviceIndex, false, true, 0, 0);
}
}
}while(iIndex >= 0);
}
AsyncCallback recieveData = new AsyncCallback(TcpOnRecievedData);
// Begin reading data asyncronously
tcpSockets.socket.BeginReceive(tcpSockets.byTcpBuffer, 0, tcpSockets.byTcpBuffer.Length, SocketFlags.None, recieveData, tcpSockets);
}
catch (Exception)
{
}
}
public void threadFile()
{
int iIndex = Int32.Parse(Thread.CurrentThread.Name);
GPSSource gpsSource = (GPSSource)m_GpsTracker.m_gpsSourceList[iIndex];
int iIndexFile;
int iIndexNext;
StreamReader fsGpsFile = null;
System.Text.ASCIIEncoding asciiEncoder = new System.Text.ASCIIEncoding();
String sGpsLine = null;
String sIndex;
byte [] byNMEA;
char [] cNMEA = null;
char [] cNMEAMsg = new char[512];
DateTime dtCurrent;
DateTime dtNext = new DateTime(0);
int iEnd = 0;
bool bRestartTrack = false;
try
{
if (File.Exists(gpsSource.sFileNameSession))
{
while (m_GpsTracker.m_fCloseThreads == false)
{
bRestartTrack = true;
fsGpsFile = File.OpenText(gpsSource.sFileNameSession);
{
if (m_GpsTracker.m_fPlayback == true)
{
m_GpsTracker.LoadSettings(fsGpsFile, false);
iIndexFile = iIndex + 1;
do
{
sIndex = fsGpsFile.ReadLine();
if (sIndex != null)
{
iEnd = sIndex.IndexOf(",");
}
if (sIndex != null && iEnd > 0)
{
iIndexFile = Convert.ToInt32(sIndex.Substring(0, iEnd));
if (iIndexFile == iIndex && sIndex.Length > iEnd + 1)
{
sGpsLine = sIndex.Substring(iEnd + 1);
break;
}
}
else
{
break;
}
} while(m_GpsTracker.m_fCloseThreads == false);
}
else
{
sIndex = "dummyindex";
iIndexFile = iIndex;
sGpsLine = fsGpsFile.ReadLine();
}
if (sGpsLine != null)
{
byNMEA = asciiEncoder.GetBytes(sGpsLine);
cNMEA = asciiEncoder.GetChars(byNMEA);
cNMEA.CopyTo(cNMEAMsg, 0);
if (m_GpsTracker.m_iPlaybackSpeed > 0)
{
dtNext = m_GpsTracker.m_NMEA.GetNMEATime(-1, sGpsLine);
}
}
while (sIndex != null && sGpsLine != null && m_GpsTracker.m_fCloseThreads == false && iIndexFile == iIndex)
{
if (sGpsLine != "" && sIndex != "")
{
try
{
if (m_GpsTracker.m_MessageMonitor != null)
{
m_GpsTracker.m_MessageMonitor.AddMessageFileRaw(sGpsLine);
}
}
catch (Exception)
{
m_GpsTracker.m_MessageMonitor = null;
}
if (m_GpsTracker.ShowGPSIcon(cNMEAMsg, cNMEA.Length, false, iIndex, bRestartTrack, true) == true)
{
if (bRestartTrack)
{
bRestartTrack = false;
}
//Get current NMEA msg time
dtCurrent = dtNext;
while (m_GpsTracker.m_fCloseThreads == false)
{
//Get next line from file
if (m_GpsTracker.m_fPlayback == true)
{
sIndex = fsGpsFile.ReadLine();
if (sIndex != null)
{
iEnd = sIndex.IndexOf(",");
if (iEnd > 0 && sIndex.Length > iEnd + 1)
{
sGpsLine = sIndex.Substring(iEnd + 1);
sIndex = sIndex.Substring(0, iEnd);
}
else
{
sIndex = "";
}
}
}
else
{
sIndex = Convert.ToString(iIndex);
sGpsLine = fsGpsFile.ReadLine();
}
if (sGpsLine == null || sIndex == null)
{
break;
}
else
if (sGpsLine != "" && sIndex != "")
{
iIndexNext = Convert.ToInt32(sIndex);
byNMEA = asciiEncoder.GetBytes(sGpsLine);
cNMEA = asciiEncoder.GetChars(byNMEA);
cNMEA.CopyTo(cNMEAMsg, 0);
//Check is a valid NMEA message
if (iIndexNext == iIndex && m_GpsTracker.m_NMEA.ParseGPSMessage(cNMEAMsg, cNMEA.Length, true, iIndex) == true)
{
if (m_GpsTracker.m_iPlaybackSpeed > 0 && gpsSource.iFilePlaySpeed > 0)
{
//Get time difference from current msg to next message...
dtNext = m_GpsTracker.m_NMEA.GetNMEATime(-1, sGpsLine);
//Check valid times
if (dtCurrent.Year != 1771 && dtNext.Year != 1771)
{
if (dtNext < dtCurrent)
{
dtNext = dtNext.AddDays(1);
}
TimeSpan tsDelay = dtNext.Subtract(dtCurrent);
double dDelay = tsDelay.TotalMilliseconds;
//apply selected speed
double dSpeed = Convert.ToDouble(gpsSource.iFilePlaySpeed);
dDelay /= dSpeed;
dDelay /= m_GpsTracker.m_iPlaybackSpeed;
Thread.Sleep(Convert.ToInt32(dDelay));
break;
}
else
{
Thread.Sleep(1);
break;
}
}
else
{
Thread.Sleep(1);
break;
}
}
else
{
Thread.Sleep(1);
}
}
else
{
Thread.Sleep(1);
//break;
}
} //while
} //show
else
{
sIndex = "dummyindex";
iIndexFile = iIndex;
sGpsLine = fsGpsFile.ReadLine();
if (sGpsLine != null)
{
byNMEA = asciiEncoder.GetBytes(sGpsLine);
cNMEA = asciiEncoder.GetChars(byNMEA);
cNMEA.CopyTo(cNMEAMsg, 0);
if (m_GpsTracker.m_iPlaybackSpeed > 0)
{
dtNext = m_GpsTracker.m_NMEA.GetNMEATime(-1, sGpsLine);
}
}
Thread.Sleep(1);
}
} // if gpsline
else
{
if (sGpsLine == "")
{
sGpsLine = fsGpsFile.ReadLine();
}
Thread.Sleep(1);
//break;
}
} //while
if (fsGpsFile != null)
{
fsGpsFile.Close();
fsGpsFile = null;
}
if (gpsSource.iReload == 0 && m_GpsTracker.m_fCloseThreads == false)
{
Thread.Sleep(3000);
}
else
{
break;
}
} //using
}
} //exists
}
catch (Exception)
{
}
if (fsGpsFile != null)
{
fsGpsFile.Close();
fsGpsFile = null;
}
}
//
//sCallSign is the call sign get data from
//use * as wild card (only at the end of the call sign):
//eg: sCallSign=N9UMJ-15
//eg: sCallSign=N9UMJ*
//eg: sCallSign=* - get data from all available call signs
public void threadAPRSIS()
{
int iIndex = Int32.Parse(Thread.CurrentThread.Name);
GPSSource gpsSource = (GPSSource)m_GpsTracker.m_gpsSourceList[iIndex];
string sCallSign = gpsSource.sCallSign;
int iRefresh = gpsSource.iRefreshRate;
while (sCallSign != null && sCallSign.Length > 0 && m_GpsTracker.m_fCloseThreads == false)
{
try
{
HttpWebRequest request = null;
request = (HttpWebRequest)WebRequest.Create(gpsSource.sAPRSServerURL.Trim() + sCallSign);
HttpWebResponse response = null;
// execute the request
response = (HttpWebResponse)request.GetResponse();
// we will read data via the response stream
Stream resStream = response.GetResponseStream();
resStream.ReadTimeout = 60000;
int iRead;
byte[] byChar = new byte[1];
StringBuilder sbMsg = new StringBuilder("");
do
{
iRead = resStream.ReadByte();
if (iRead >= 0)
{
byChar[0] = Convert.ToByte(iRead);
if (byChar[0] != '\r' && byChar[0] != '\n')
{
sbMsg.Append(Encoding.ASCII.GetString(byChar));
}
else
{
string sMsg = sbMsg.ToString();
try
{
if (m_GpsTracker.m_MessageMonitor != null)
{
m_GpsTracker.m_MessageMonitor.AddMessageUnfilteredAPRS(sMsg);
}
}
catch (Exception)
{
m_GpsTracker.m_MessageMonitor = null;
}
char [] cMessage = sMsg.ToCharArray();
if (!m_GpsTracker.ShowGPSIcon(cMessage, sMsg.Length, false, iIndex, false, true))
{
if (sMsg.StartsWith("\"packet_id\"") == false)
{
CSVReader csvReader = new CSVReader();
string [] sMsgField = csvReader.GetCSVLine(sMsg);
if (sMsgField != null && sMsgField.Length == 14)
{
//Display icon
gpsSource.GpsPos.m_sName = sMsgField[1];
if (sMsgField[2] != "")
{
gpsSource.GpsPos.m_fLat = Convert.ToSingle(sMsgField[2]);
}
if (sMsgField[3] != "")
{
gpsSource.GpsPos.m_fLon = Convert.ToSingle(sMsgField[3]);
}
if (sMsgField[4] != "")
{
gpsSource.GpsPos.m_fHeading = Convert.ToSingle(sMsgField[4]);
}
if (sMsgField[5] != "")
{
gpsSource.GpsPos.m_fSpeed = Convert.ToSingle(sMsgField[5]);
}
if (sMsgField[6] != "")
{
gpsSource.GpsPos.m_fAlt = Convert.ToSingle(sMsgField[6]);
}
if (sMsgField[7] != "")
{
gpsSource.GpsPos.m_iAPRSIconTable = Convert.ToInt32(Convert.ToChar(sMsgField[7]));
}
if (sMsgField[8] != "")
{
gpsSource.GpsPos.m_iAPRSIconCode = Convert.ToInt32(Convert.ToChar(sMsgField[8]));
}
gpsSource.GpsPos.m_sComment = sMsgField[9];
if (sMsgField[13] != "")
{
DateTime dateAPRS = new DateTime(0);
dateAPRS = DateTime.Parse(sMsgField[13]);
gpsSource.GpsPos.m_iYear = dateAPRS.Year;
gpsSource.GpsPos.m_iMonth = dateAPRS.Month;
gpsSource.GpsPos.m_iDay = dateAPRS.Day;
gpsSource.GpsPos.m_iHour = dateAPRS.Hour;
gpsSource.GpsPos.m_iMin = dateAPRS.Minute;
gpsSource.GpsPos.m_iSec = Convert.ToSingle(dateAPRS.Second);
}
gpsSource.GpsPos.m_fRoll = -1000F;
gpsSource.GpsPos.m_fPitch = -1000F;
gpsSource.GpsPos.m_fESpeed = -1000000;
gpsSource.GpsPos.m_fNSpeed = -1000000;
gpsSource.GpsPos.m_fVSpeed = -1000000;
gpsSource.GpsPos.m_fDepth = -1000000;
gpsSource.GpsPos.m_sAltUnit = "m";
gpsSource.GpsPos.m_sSpeedUnit = "km\\h";
sMsg = "APRS:" + sMsg;
cMessage = sMsg.ToCharArray();
m_GpsTracker.ShowGPSIcon(cMessage, sMsg.Length, false, iIndex, false, false);
}
}
}
sbMsg = new StringBuilder("");
}
}
} while (iRead >= 0 && m_GpsTracker.m_fCloseThreads == false);
}
catch (Exception)
{
}
for (int iDelay = 0; iDelay < (iRefresh * 2); iDelay++)
{
if (m_GpsTracker.m_fCloseThreads == true)
{
break;
}
Thread.Sleep(500);
}
}
gpsSource.eventThreadSync.Set();
}
