source: ntrip/trunk/BNC/src/bnccaster.cpp@ 8654

Last change on this file since 8654 was 8621, checked in by stuerze, 6 years ago

minor changes

File size: 16.3 KB
Line 
1// Part of BNC, a utility for retrieving decoding and
2// converting GNSS data streams from NTRIP broadcasters.
3//
4// Copyright (C) 2007
5// German Federal Agency for Cartography and Geodesy (BKG)
6// http://www.bkg.bund.de
7// Czech Technical University Prague, Department of Geodesy
8// http://www.fsv.cvut.cz
9//
10// Email: euref-ip@bkg.bund.de
11//
12// This program is free software; you can redistribute it and/or
13// modify it under the terms of the GNU General Public License
14// as published by the Free Software Foundation, version 2.
15//
16// This program is distributed in the hope that it will be useful,
17// but WITHOUT ANY WARRANTY; without even the implied warranty of
18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19// GNU General Public License for more details.
20//
21// You should have received a copy of the GNU General Public License
22// along with this program; if not, write to the Free Software
23// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24
25/* -------------------------------------------------------------------------
26 * BKG NTRIP Client
27 * -------------------------------------------------------------------------
28 *
29 * Class: bncCaster
30 *
31 * Purpose: buffers and disseminates the data
32 *
33 * Author: L. Mervart
34 *
35 * Created: 24-Dec-2005
36 *
37 * Changes:
38 *
39 * -----------------------------------------------------------------------*/
40
41#include <math.h>
42#include <unistd.h>
43#include <iostream>
44#include <iomanip>
45#include <sstream>
46
47#include "bnccaster.h"
48#include "bncrinex.h"
49#include "bnccore.h"
50#include "bncgetthread.h"
51#include "bncutils.h"
52#include "bncsettings.h"
53
54using namespace std;
55
56// Constructor
57////////////////////////////////////////////////////////////////////////////
58bncCaster::bncCaster() {
59
60 bncSettings settings;
61
62 connect(this, SIGNAL(newMessage(QByteArray,bool)),
63 BNC_CORE, SLOT(slotMessage(const QByteArray,bool)));
64
65 _outFile = 0;
66 _out = 0;
67 reopenOutFile();
68
69 int port = settings.value("outPort").toInt();
70
71 if (port != 0) {
72 _server = new QTcpServer;
73 if ( !_server->listen(QHostAddress::Any, port) ) {
74 emit newMessage("bncCaster: Cannot listen on sync port", true);
75 }
76 connect(_server, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
77 _sockets = new QList<QTcpSocket*>;
78 }
79 else {
80 _server = 0;
81 _sockets = 0;
82 }
83
84 int uPort = settings.value("outUPort").toInt();
85 if (uPort != 0) {
86 _uServer = new QTcpServer;
87 if ( !_uServer->listen(QHostAddress::Any, uPort) ) {
88 emit newMessage("bncCaster: Cannot listen on usync port", true);
89 }
90 connect(_uServer, SIGNAL(newConnection()), this, SLOT(slotNewUConnection()));
91 _uSockets = new QList<QTcpSocket*>;
92 }
93 else {
94 _uServer = 0;
95 _uSockets = 0;
96 }
97
98 _outLockTime = settings.value("outLockTime",false).toBool();
99 _samplingRateMult10 = int(settings.value("outSampl").toString().split("sec").first().toDouble() * 10.0);
100 _outWait = settings.value("outWait").toDouble();
101 if (_outWait <= 0.0) {
102 _outWait = 0.01;
103 }
104 _confInterval = -1;
105
106 // Miscellaneous output port
107 // -------------------------
108 _miscMount = settings.value("miscMount").toString();
109 _miscPort = settings.value("miscPort").toInt();
110 if (!_miscMount.isEmpty() && _miscPort != 0) {
111 _miscServer = new QTcpServer;
112 if ( !_miscServer->listen(QHostAddress::Any, _miscPort) ) {
113 emit newMessage("bncCaster: Cannot listen on Miscellaneous Output Port", true);
114 }
115 connect(_miscServer, SIGNAL(newConnection()), this, SLOT(slotNewMiscConnection()));
116 _miscSockets = new QList<QTcpSocket*>;
117 }
118 else {
119 _miscServer = 0;
120 _miscSockets = 0;
121 }
122}
123
124// Destructor
125////////////////////////////////////////////////////////////////////////////
126bncCaster::~bncCaster() {
127
128 QMutexLocker locker(&_mutex);
129
130 QListIterator<bncGetThread*> it(_threads);
131 while(it.hasNext()){
132 bncGetThread* thread = it.next();
133 disconnect(thread, 0, 0, 0);
134 _staIDs.removeAll(thread->staID());
135 _threads.removeAll(thread);
136 thread->terminate();
137 }
138 delete _out;
139 delete _outFile;
140 delete _server;
141 delete _sockets;
142 delete _uServer;
143 delete _uSockets;
144 delete _miscServer;
145 delete _miscSockets;
146}
147
148// New Observations
149////////////////////////////////////////////////////////////////////////////
150void bncCaster::slotNewObs(const QByteArray staID, QList<t_satObs> obsList) {
151
152 QMutexLocker locker(&_mutex);
153
154 reopenOutFile();
155
156 unsigned index = 0;
157 QMutableListIterator<t_satObs> it(obsList);
158 while (it.hasNext()) {
159 ++index;
160 t_satObs& obs = it.next();
161
162 // Rename the Station
163 // ------------------
164 obs._staID = staID.data();
165
166 // Output into the socket
167 // ----------------------
168 if (_uSockets) {
169
170 ostringstream oStr;
171 oStr.setf(ios::showpoint | ios::fixed);
172 oStr << obs._staID << " "
173 << setw(4) << obs._time.gpsw() << " "
174 << setw(14) << setprecision(7) << obs._time.gpssec() << " "
175 << bncRinex::asciiSatLine(obs,_outLockTime) << endl;
176
177 string hlpStr = oStr.str();
178
179 QMutableListIterator<QTcpSocket*> is(*_uSockets);
180 while (is.hasNext()) {
181 QTcpSocket* sock = is.next();
182 if (sock->state() == QAbstractSocket::ConnectedState) {
183 int numBytes = hlpStr.length();
184 if (myWrite(sock, hlpStr.c_str(), numBytes) != numBytes) {
185 delete sock;
186 is.remove();
187 }
188 }
189 else if (sock->state() != QAbstractSocket::ConnectingState) {
190 delete sock;
191 is.remove();
192 }
193 }
194 }
195
196 // First time: set the _lastDumpTime
197 // ---------------------------------
198 if (!_lastDumpTime.valid()) {
199 _lastDumpTime = obs._time - 1.0;
200 }
201
202 // An old observation - throw it away
203 // ----------------------------------
204 if (obs._time <= _lastDumpTime) {
205 if (index == 1) {
206 bncSettings settings;
207 if ( !settings.value("outFile").toString().isEmpty() ||
208 !settings.value("outPort").toString().isEmpty() ) {
209 emit( newMessage(QString("%1: Old epoch %2 thrown away")
210 .arg(staID.data()).arg(string(obs._time).c_str())
211 .toLatin1(), true) );
212 }
213 }
214 continue;
215 }
216
217 // Save the observation
218 // --------------------
219 _epochs[obs._time].append(obs);
220
221 // Dump Epochs
222 // -----------
223 if (obs._time - _outWait > _lastDumpTime) {
224 dumpEpochs(obs._time - _outWait);
225 _lastDumpTime = obs._time - _outWait;
226 }
227 }
228}
229
230// New Connection
231////////////////////////////////////////////////////////////////////////////
232void bncCaster::slotNewConnection() {
233 _sockets->push_back( _server->nextPendingConnection() );
234 emit( newMessage(QString("New client connection on sync port: # %1")
235 .arg(_sockets->size()).toLatin1(), true) );
236}
237
238void bncCaster::slotNewUConnection() {
239 _uSockets->push_back( _uServer->nextPendingConnection() );
240 emit( newMessage(QString("New client connection on usync port: # %1")
241 .arg(_uSockets->size()).toLatin1(), true) );
242}
243
244// Add New Thread
245////////////////////////////////////////////////////////////////////////////
246void bncCaster::addGetThread(bncGetThread* getThread, bool noNewThread) {
247
248 qRegisterMetaType<t_satObs>("t_satObs");
249 qRegisterMetaType< QList<t_satObs> >("QList<t_satObs>");
250
251 connect(getThread, SIGNAL(newObs(QByteArray, QList<t_satObs>)),
252 this, SLOT(slotNewObs(QByteArray, QList<t_satObs>)));
253
254 connect(getThread, SIGNAL(newObs(QByteArray, QList<t_satObs>)),
255 this, SIGNAL(newObs(QByteArray, QList<t_satObs>)));
256
257 connect(getThread, SIGNAL(newRawData(QByteArray, QByteArray)),
258 this, SLOT(slotNewRawData(QByteArray, QByteArray)));
259
260 connect(getThread, SIGNAL(getThreadFinished(QByteArray)),
261 this, SLOT(slotGetThreadFinished(QByteArray)));
262
263 _staIDs.push_back(getThread->staID());
264 _threads.push_back(getThread);
265
266 if (noNewThread) {
267 getThread->run();
268 }
269 else {
270 getThread->start();
271 }
272}
273
274// Get Thread destroyed
275////////////////////////////////////////////////////////////////////////////
276void bncCaster::slotGetThreadFinished(QByteArray staID) {
277 QMutexLocker locker(&_mutex);
278
279 QListIterator<bncGetThread*> it(_threads);
280 while (it.hasNext()) {
281 bncGetThread* thread = it.next();
282 if (thread->staID() == staID) {
283 _threads.removeOne(thread);
284 }
285 }
286
287 _staIDs.removeAll(staID);
288 emit( newMessage(
289 QString("Decoding %1 stream(s)").arg(_staIDs.size()).toLatin1(), true) );
290 if (_staIDs.size() == 0) {
291 emit(newMessage("bncCaster: Last get thread terminated", true));
292 emit getThreadsFinished();
293 }
294}
295
296// Dump Complete Epochs
297////////////////////////////////////////////////////////////////////////////
298void bncCaster::dumpEpochs(const bncTime& maxTime) {
299
300 QMutableMapIterator<bncTime, QList<t_satObs> > itEpo(_epochs);
301 while (itEpo.hasNext()) {
302 itEpo.next();
303 const bncTime& epoTime = itEpo.key();
304 if (epoTime <= maxTime) {
305 const QList<t_satObs>& allObs = itEpo.value();
306 int sec = int(nint(epoTime.gpssec()*10));
307 if ( (_out || _sockets) && (sec % (_samplingRateMult10) == 0) ) {
308 QListIterator<t_satObs> it(allObs);
309 bool firstObs = true;
310 while (it.hasNext()) {
311 const t_satObs& obs = it.next();
312
313 ostringstream oStr;
314 oStr.setf(ios::showpoint | ios::fixed);
315 if (firstObs) {
316 firstObs = false;
317 oStr << "> " << obs._time.gpsw() << ' '
318 << setprecision(7) << obs._time.gpssec() << endl;
319 }
320 oStr << obs._staID << ' '
321 << bncRinex::asciiSatLine(obs,_outLockTime) << endl;
322 if (!it.hasNext()) {
323 oStr << endl;
324 }
325 string hlpStr = oStr.str();
326
327 // Output into the File
328 // --------------------
329 if (_out) {
330 *_out << hlpStr.c_str();
331 _out->flush();
332 }
333
334 // Output into the socket
335 // ----------------------
336 if (_sockets) {
337 QMutableListIterator<QTcpSocket*> is(*_sockets);
338 while (is.hasNext()) {
339 QTcpSocket* sock = is.next();
340 if (sock->state() == QAbstractSocket::ConnectedState) {
341 int numBytes = hlpStr.length();
342 if (myWrite(sock, hlpStr.c_str(), numBytes) != numBytes) {
343 delete sock;
344 is.remove();
345 }
346 }
347 else if (sock->state() != QAbstractSocket::ConnectingState) {
348 delete sock;
349 is.remove();
350 }
351 }
352 }
353 }
354 }
355 _epochs.remove(epoTime);
356 }
357 }
358}
359
360// Reread configuration (private slot)
361////////////////////////////////////////////////////////////////////////////
362void bncCaster::slotReadMountPoints() {
363
364 bncSettings settings;
365 settings.reRead();
366
367 readMountPoints();
368}
369
370// Read Mountpoints
371////////////////////////////////////////////////////////////////////////////
372void bncCaster::readMountPoints() {
373
374 bncSettings settings;
375
376 // Reread several options
377 // ----------------------
378 _samplingRateMult10 = int(settings.value("outSampl").toString().split("sec").first().toDouble() * 10.0);
379 _outWait = settings.value("outWait").toInt();
380 if (_outWait < 1) {
381 _outWait = 1;
382 }
383
384 // Add new mountpoints
385 // -------------------
386 int iMount = -1;
387 QListIterator<QString> it(settings.value("mountPoints").toStringList());
388 while (it.hasNext()) {
389 ++iMount;
390 QStringList hlp = it.next().split(" ");
391 if (hlp.size() < 7) continue;
392 QUrl url(hlp[0]);
393
394 // Does it already exist?
395 // ----------------------
396 bool existFlg = false;
397 QListIterator<bncGetThread*> iTh(_threads);
398 while (iTh.hasNext()) {
399 bncGetThread* thread = iTh.next();
400 if (thread->mountPoint() == url) {
401 existFlg = true;
402 break;
403 }
404 }
405
406 // New bncGetThread
407 // ----------------
408 if (!existFlg) {
409 QByteArray format = hlp[1].toLatin1();
410 QByteArray latitude = hlp[3].toLatin1();
411 QByteArray longitude = hlp[4].toLatin1();
412 QByteArray nmea = hlp[5].toLatin1();
413 QByteArray ntripVersion = hlp[6].toLatin1();
414
415 bncGetThread* getThread = new bncGetThread(url, format, latitude,
416 longitude, nmea, ntripVersion);
417 addGetThread(getThread);
418
419 }
420 }
421
422 // Remove mountpoints
423 // ------------------
424 QListIterator<bncGetThread*> iTh(_threads);
425 while (iTh.hasNext()) {
426 bncGetThread* thread = iTh.next();
427
428 bool existFlg = false;
429 QListIterator<QString> it(settings.value("mountPoints").toStringList());
430 while (it.hasNext()) {
431 QStringList hlp = it.next().split(" ");
432 if (hlp.size() <= 1) continue;
433 QUrl url(hlp[0]);
434
435 if (thread->mountPoint() == url) {
436 existFlg = true;
437 break;
438 }
439 }
440
441 if (!existFlg) {
442 disconnect(thread, 0, 0, 0);
443 _staIDs.removeAll(thread->staID());
444 _threads.removeAll(thread);
445 thread->terminate();
446 }
447 }
448
449 emit mountPointsRead(_threads);
450 emit( newMessage(QString("Configuration read: "
451 + BNC_CORE->confFileName()
452 + ", %1 stream(s)")
453 .arg(_threads.count()).toLatin1(), true) );
454
455 // (Re-) Start the configuration timer
456 // -----------------------------------
457 if (settings.value("onTheFlyInterval").toString() == "no") {
458 return;
459 }
460
461 int ms = 0;
462 if (_confInterval != -1) {
463 ms = 1000 * _confInterval;
464 }
465 else {
466 QTime currTime = currentDateAndTimeGPS().time();
467 QTime nextShotTime;
468 if (settings.value("onTheFlyInterval").toString() == "1 min") {
469 _confInterval = 60;
470 nextShotTime = QTime(currTime.hour(), currTime.minute()+1, 0);
471 }
472 else if (settings.value("onTheFlyInterval").toString() == "5 min") {
473 _confInterval = 300;
474 nextShotTime = QTime(currTime.hour(), currTime.minute()+5, 0);
475 }
476 else if (settings.value("onTheFlyInterval").toString() == "1 hour") {
477 _confInterval = 3600;
478 nextShotTime = QTime(currTime.hour()+1, 0, 0);
479 }
480 else {
481 _confInterval = 86400;
482 nextShotTime = QTime(23, 59, 59, 999);
483 }
484
485 ms = currTime.msecsTo(nextShotTime);
486 if (ms < 30000) {
487 ms = 30000;
488 }
489 }
490
491 QTimer::singleShot(ms, this, SLOT(slotReadMountPoints()));
492}
493
494//
495////////////////////////////////////////////////////////////////////////////
496int bncCaster::myWrite(QTcpSocket* sock, const char* buf, int bufLen) {
497 sock->write(buf, bufLen);
498 for (int ii = 1; ii <= 10; ii++) {
499 if (sock->waitForBytesWritten(10)) { // wait 10 ms
500 return bufLen;
501 }
502 }
503 return -1;
504}
505
506//
507////////////////////////////////////////////////////////////////////////////
508void bncCaster::reopenOutFile() {
509
510 bncSettings settings;
511
512 QString outFileName = settings.value("outFile").toString();
513 if ( !outFileName.isEmpty() ) {
514 expandEnvVar(outFileName);
515 if (!_outFile || _outFile->fileName() != outFileName) {
516 delete _out;
517 delete _outFile;
518 _outFile = new QFile(outFileName);
519 if ( Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) {
520 _outFile->open(QIODevice::WriteOnly | QIODevice::Append);
521 }
522 else {
523 _outFile->open(QIODevice::WriteOnly);
524 }
525 _out = new QTextStream(_outFile);
526 _out->setRealNumberNotation(QTextStream::FixedNotation);
527 }
528 }
529 else {
530 delete _out; _out = 0;
531 delete _outFile; _outFile = 0;
532 }
533}
534
535// Output into the Miscellaneous socket
536////////////////////////////////////////////////////////////////////////////
537void bncCaster::slotNewRawData(QByteArray staID, QByteArray data) {
538 if (_miscSockets && (_miscMount == "ALL" || _miscMount == staID)) {
539 QMutableListIterator<QTcpSocket*> is(*_miscSockets);
540 while (is.hasNext()) {
541 QTcpSocket* sock = is.next();
542 if (sock->state() == QAbstractSocket::ConnectedState) {
543 sock->write(data);
544 }
545 else if (sock->state() != QAbstractSocket::ConnectingState) {
546 delete sock;
547 is.remove();
548 }
549 }
550 }
551}
552
553// New Connection
554////////////////////////////////////////////////////////////////////////////
555void bncCaster::slotNewMiscConnection() {
556 _miscSockets->push_back( _miscServer->nextPendingConnection() );
557 emit( newMessage(QString("New client connection on Miscellaneous Output Port: # %1")
558 .arg(_miscSockets->size()).toLatin1(), true) );
559}
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