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2 | /* -------------------------------------------------------------------------
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3 | * BKG NTRIP Client
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4 | * -------------------------------------------------------------------------
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5 | *
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6 | * Class: bncCaster
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7 | *
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8 | * Purpose: buffers and disseminates the data
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9 | *
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10 | * Author: L. Mervart
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11 | *
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12 | * Created: 24-Dec-2005
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13 | *
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14 | * Changes:
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15 | *
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16 | * -----------------------------------------------------------------------*/
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17 |
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18 | #include "bnccaster.h"
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19 | #include "bncgetthread.h"
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20 | #include "bncutils.h"
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21 | #include "RTCM/RTCM.h"
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22 |
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23 | // Constructor
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24 | ////////////////////////////////////////////////////////////////////////////
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25 | bncCaster::bncCaster(const QString& outFileName, int port) {
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26 |
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27 | if ( !outFileName.isEmpty() ) {
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28 | QString lName = outFileName;
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29 | expandEnvVar(lName);
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30 | _outFile = new QFile(lName);
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31 | _outFile->open(QIODevice::WriteOnly);
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32 | _out = new QTextStream(_outFile);
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33 | _out->setRealNumberNotation(QTextStream::FixedNotation);
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34 | _out->setRealNumberPrecision(5);
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35 | }
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36 | else {
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37 | _outFile = 0;
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38 | _out = 0;
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39 | }
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40 |
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41 | _port = port;
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42 |
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43 | if (_port != 0) {
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44 | _server = new QTcpServer;
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45 | _server->listen(QHostAddress::Any, _port);
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46 | connect(_server, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
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47 | _sockets = new QList<QTcpSocket*>;
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48 | }
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49 | else {
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50 | _server = 0;
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51 | _sockets = 0;
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52 | }
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53 |
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54 | _epochs = new QMultiMap<long, Observation*>;
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55 |
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56 | _lastDumpSec = 0;
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57 |
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58 | QSettings settings;
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59 | _samplingRate = settings.value("rnxSampl").toInt();
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60 | _waitTime = settings.value("waitTime").toInt();
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61 | if (_waitTime < 1) {
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62 | _waitTime = 1;
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63 | }
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64 | }
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65 |
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66 | // Destructor
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67 | ////////////////////////////////////////////////////////////////////////////
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68 | bncCaster::~bncCaster() {
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69 | delete _out;
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70 | delete _outFile;
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71 | }
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72 |
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73 | // Run
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74 | ////////////////////////////////////////////////////////////////////////////
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75 | void bncCaster::run() {
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76 | exec();
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77 | }
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78 |
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79 | // New Observations
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80 | ////////////////////////////////////////////////////////////////////////////
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81 | void bncCaster::slotNewObs(const QByteArray& staID, Observation* obs) {
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82 |
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83 | long newTime = obs->GPSWeek * 7*24*3600 + obs->GPSWeeks;
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84 |
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85 | // Rename the Station
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86 | // ------------------
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87 | strncpy(obs->StatID, staID.constData(),sizeof(obs->StatID));
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88 |
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89 | // Prepare RINEX Output
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90 | // --------------------
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91 | if (_rinexWriters.find(obs->StatID) == _rinexWriters.end()) {
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92 | _rinexWriters.insert(obs->StatID, new bncRinex(obs->StatID));
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93 | }
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94 | bncRinex* rnx = _rinexWriters.find(obs->StatID).value();
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95 | rnx->deepCopy(obs);
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96 | rnx->dumpEpoch(newTime);
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97 |
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98 | // First time, set the _lastDumpSec immediately
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99 | // --------------------------------------------
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100 | if (_lastDumpSec == 0) {
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101 | _lastDumpSec = newTime - 1;
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102 | }
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103 |
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104 | // An old observation - throw it away
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105 | // ----------------------------------
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106 | if (newTime <= _lastDumpSec) {
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107 | emit( newMessage(QString("Station %1: old epoch %2 thrown away")
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108 | .arg(staID.data()).arg(obs->GPSWeeks).toAscii()) );
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109 | delete obs;
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110 | return;
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111 | }
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112 |
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113 | // Save the observation
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114 | // --------------------
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115 | _epochs->insert(newTime, obs);
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116 |
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117 | // Dump older epochs
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118 | // -----------------
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119 | dumpEpochs(_lastDumpSec + 1, newTime - _waitTime);
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120 | _lastDumpSec = newTime - _waitTime;
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121 | }
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122 |
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123 | // New Connection
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124 | ////////////////////////////////////////////////////////////////////////////
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125 | void bncCaster::slotNewConnection() {
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126 | _sockets->push_back( _server->nextPendingConnection() );
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127 | }
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128 |
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129 | // Add New Thread
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130 | ////////////////////////////////////////////////////////////////////////////
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131 | void bncCaster::addGetThread(bncGetThread* getThread) {
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132 | connect(getThread, SIGNAL(newObs(const QByteArray&, Observation*)),
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133 | this, SLOT(slotNewObs(const QByteArray&, Observation*)));
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134 |
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135 | connect(getThread, SIGNAL(error(const QByteArray&)),
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136 | this, SLOT(slotGetThreadError(const QByteArray&)));
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137 |
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138 | _staIDs.push_back(getThread->staID());
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139 | }
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140 |
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141 | // Error in get thread
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142 | ////////////////////////////////////////////////////////////////////////////
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143 | void bncCaster::slotGetThreadError(const QByteArray& staID) {
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144 | _staIDs.removeAll(staID);
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145 | emit( newMessage(
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146 | QString("Mountpoint size %1").arg(_staIDs.size()).toAscii()) );
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147 | if (_staIDs.size() == 0) {
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148 | emit(newMessage("bncCaster:: last get thread terminated"));
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149 | emit getThreadErrors();
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150 | }
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151 | }
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152 |
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153 | // Dump Complete Epochs
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154 | ////////////////////////////////////////////////////////////////////////////
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155 | void bncCaster::dumpEpochs(long minTime, long maxTime) {
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156 |
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157 | const char begEpoch = 'A';
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158 | const char begObs = 'B';
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159 | const char endEpoch = 'C';
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160 |
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161 | for (long sec = minTime; sec <= maxTime; sec++) {
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162 |
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163 | bool first = true;
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164 | QList<Observation*> allObs = _epochs->values(sec);
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165 | QListIterator<Observation*> it(allObs);
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166 | while (it.hasNext()) {
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167 | Observation* obs = it.next();
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168 |
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169 | if (_samplingRate == 0 || sec % _samplingRate == 0) {
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170 |
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171 | // Output into the file
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172 | // --------------------
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173 | if (_out) {
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174 | if (first) {
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175 | *_out << begEpoch << endl;;
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176 | }
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177 | *_out << obs->StatID << " "
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178 | << (int) obs->SVPRN << " "
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179 | << (int) obs->GPSWeek << " "
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180 | << obs->GPSWeeks << " "
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181 | << obs->sec << " "
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182 | << obs->pCodeIndicator << " "
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183 | << obs->cumuLossOfCont << " "
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184 | << obs->C1 << " "
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185 | << obs->P2 << " "
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186 | << obs->L1 << " "
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187 | << obs->L2 << endl;
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188 | if (!it.hasNext()) {
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189 | *_out << endEpoch << endl;
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190 | }
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191 | }
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192 |
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193 | // Output into the socket
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194 | // ----------------------
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195 | if (_sockets) {
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196 | int numBytes = sizeof(*obs);
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197 | QListIterator<QTcpSocket*> is(*_sockets);
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198 | while (is.hasNext()) {
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199 | QTcpSocket* sock = is.next();
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200 | if (first) {
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201 | sock->write(&begEpoch, 1);
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202 | }
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203 | sock->write(&begObs, 1);
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204 | sock->write((char*) obs, numBytes);
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205 | if (!it.hasNext()) {
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206 | sock->write(&endEpoch, 1);
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207 | }
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208 | }
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209 | }
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210 | }
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211 |
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212 | delete obs;
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213 | _epochs->remove(sec);
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214 | first = false;
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215 | }
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216 | }
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217 | }
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