source: ntrip/branches/BNC_2.12/src/bnccaster.cpp@ 9021

Last change on this file since 9021 was 9021, checked in by stuerze, 2 years ago

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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 or erroneous observation epoch %2 thrown away from %3")
210 .arg(staID.data())
211 .arg(string(obs._time).c_str())
212 .arg(obs._prn.toString().c_str())
213 .toAscii(), true) );
214 }
215 }
216 continue;
217 }
218
219 // Save the observation
220 // --------------------
221 _epochs[obs._time].append(obs);
222
223 // Dump Epochs
224 // -----------
225 if (obs._time - _outWait > _lastDumpTime) {
226 dumpEpochs(obs._time - _outWait);
227 _lastDumpTime = obs._time - _outWait;
228 }
229 }
230}
231
232// New Connection
233////////////////////////////////////////////////////////////////////////////
234void bncCaster::slotNewConnection() {
235 _sockets->push_back( _server->nextPendingConnection() );
236 emit( newMessage(QString("New client connection on sync port: # %1")
237 .arg(_sockets->size()).toAscii(), true) );
238}
239
240void bncCaster::slotNewUConnection() {
241 _uSockets->push_back( _uServer->nextPendingConnection() );
242 emit( newMessage(QString("New client connection on usync port: # %1")
243 .arg(_uSockets->size()).toAscii(), true) );
244}
245
246// Add New Thread
247////////////////////////////////////////////////////////////////////////////
248void bncCaster::addGetThread(bncGetThread* getThread, bool noNewThread) {
249
250 qRegisterMetaType<t_satObs>("t_satObs");
251 qRegisterMetaType< QList<t_satObs> >("QList<t_satObs>");
252
253 connect(getThread, SIGNAL(newObs(QByteArray, QList<t_satObs>)),
254 this, SLOT(slotNewObs(QByteArray, QList<t_satObs>)));
255
256 connect(getThread, SIGNAL(newObs(QByteArray, QList<t_satObs>)),
257 this, SIGNAL(newObs(QByteArray, QList<t_satObs>)));
258
259 connect(getThread, SIGNAL(newRawData(QByteArray, QByteArray)),
260 this, SLOT(slotNewRawData(QByteArray, QByteArray)));
261
262 connect(getThread, SIGNAL(getThreadFinished(QByteArray)),
263 this, SLOT(slotGetThreadFinished(QByteArray)));
264
265 _staIDs.push_back(getThread->staID());
266 _threads.push_back(getThread);
267
268 if (noNewThread) {
269 getThread->run();
270 }
271 else {
272 getThread->start();
273 }
274}
275
276// Get Thread destroyed
277////////////////////////////////////////////////////////////////////////////
278void bncCaster::slotGetThreadFinished(QByteArray staID) {
279 QMutexLocker locker(&_mutex);
280
281 QListIterator<bncGetThread*> it(_threads);
282 while (it.hasNext()) {
283 bncGetThread* thread = it.next();
284 if (thread->staID() == staID) {
285 _threads.removeOne(thread);
286 }
287 }
288
289 _staIDs.removeAll(staID);
290 emit( newMessage(
291 QString("Decoding %1 stream(s)").arg(_staIDs.size()).toAscii(), true) );
292 if (_staIDs.size() == 0) {
293 emit(newMessage("bncCaster: Last get thread terminated", true));
294 emit getThreadsFinished();
295 }
296}
297
298// Dump Complete Epochs
299////////////////////////////////////////////////////////////////////////////
300void bncCaster::dumpEpochs(const bncTime& maxTime) {
301
302 QMutableMapIterator<bncTime, QList<t_satObs> > itEpo(_epochs);
303 while (itEpo.hasNext()) {
304 itEpo.next();
305 const bncTime& epoTime = itEpo.key();
306 if (epoTime <= maxTime) {
307 const QList<t_satObs>& allObs = itEpo.value();
308 int sec = int(nint(epoTime.gpssec()*10));
309 if ( (_out || _sockets) && (sec % (_samplingRateMult10) == 0) ) {
310 QListIterator<t_satObs> it(allObs);
311 bool firstObs = true;
312 while (it.hasNext()) {
313 const t_satObs& obs = it.next();
314
315 ostringstream oStr;
316 oStr.setf(ios::showpoint | ios::fixed);
317 if (firstObs) {
318 firstObs = false;
319 oStr << "> " << obs._time.gpsw() << ' '
320 << setprecision(7) << obs._time.gpssec() << endl;
321 }
322 oStr << obs._staID << ' '
323 << bncRinex::asciiSatLine(obs,_outLockTime) << endl;
324 if (!it.hasNext()) {
325 oStr << endl;
326 }
327 string hlpStr = oStr.str();
328
329 // Output into the File
330 // --------------------
331 if (_out) {
332 *_out << hlpStr.c_str();
333 _out->flush();
334 }
335
336 // Output into the socket
337 // ----------------------
338 if (_sockets) {
339 QMutableListIterator<QTcpSocket*> is(*_sockets);
340 while (is.hasNext()) {
341 QTcpSocket* sock = is.next();
342 if (sock->state() == QAbstractSocket::ConnectedState) {
343 int numBytes = hlpStr.length();
344 if (myWrite(sock, hlpStr.c_str(), numBytes) != numBytes) {
345 delete sock;
346 is.remove();
347 }
348 }
349 else if (sock->state() != QAbstractSocket::ConnectingState) {
350 delete sock;
351 is.remove();
352 }
353 }
354 }
355 }
356 }
357 _epochs.remove(epoTime);
358 }
359 }
360}
361
362// Reread configuration (private slot)
363////////////////////////////////////////////////////////////////////////////
364void bncCaster::slotReadMountPoints() {
365
366 bncSettings settings;
367 settings.reRead();
368
369 readMountPoints();
370}
371
372// Read Mountpoints
373////////////////////////////////////////////////////////////////////////////
374void bncCaster::readMountPoints() {
375
376 bncSettings settings;
377
378 // Reread several options
379 // ----------------------
380 _samplingRateMult10 = int(settings.value("outSampl").toString().split("sec").first().toDouble() * 10.0);
381 _outWait = settings.value("outWait").toInt();
382 if (_outWait < 1) {
383 _outWait = 1;
384 }
385
386 // Add new mountpoints
387 // -------------------
388 int iMount = -1;
389 QListIterator<QString> it(settings.value("mountPoints").toStringList());
390 while (it.hasNext()) {
391 ++iMount;
392 QStringList hlp = it.next().split(" ");
393 if (hlp.size() < 7) continue;
394 QUrl url(hlp[0]);
395
396 // Does it already exist?
397 // ----------------------
398 bool existFlg = false;
399 QListIterator<bncGetThread*> iTh(_threads);
400 while (iTh.hasNext()) {
401 bncGetThread* thread = iTh.next();
402 if (thread->mountPoint() == url) {
403 existFlg = true;
404 break;
405 }
406 }
407
408 // New bncGetThread
409 // ----------------
410 if (!existFlg) {
411 QByteArray format = hlp[1].toAscii();
412 QByteArray latitude = hlp[3].toAscii();
413 QByteArray longitude = hlp[4].toAscii();
414 QByteArray nmea = hlp[5].toAscii();
415 QByteArray ntripVersion = hlp[6].toAscii();
416
417 bncGetThread* getThread = new bncGetThread(url, format, latitude,
418 longitude, nmea, ntripVersion);
419 addGetThread(getThread);
420
421 }
422 }
423
424 // Remove mountpoints
425 // ------------------
426 QListIterator<bncGetThread*> iTh(_threads);
427 while (iTh.hasNext()) {
428 bncGetThread* thread = iTh.next();
429
430 bool existFlg = false;
431 QListIterator<QString> it(settings.value("mountPoints").toStringList());
432 while (it.hasNext()) {
433 QStringList hlp = it.next().split(" ");
434 if (hlp.size() <= 1) continue;
435 QUrl url(hlp[0]);
436
437 if (thread->mountPoint() == url) {
438 existFlg = true;
439 break;
440 }
441 }
442
443 if (!existFlg) {
444 disconnect(thread, 0, 0, 0);
445 _staIDs.removeAll(thread->staID());
446 _threads.removeAll(thread);
447 thread->terminate();
448 }
449 }
450
451 emit mountPointsRead(_threads);
452 emit( newMessage(QString("Configuration read: "
453 + BNC_CORE->confFileName()
454 + ", %1 stream(s)")
455 .arg(_threads.count()).toAscii(), true) );
456
457 // (Re-) Start the configuration timer
458 // -----------------------------------
459 if (settings.value("onTheFlyInterval").toString() == "no") {
460 return;
461 }
462
463 int ms = 0;
464 if (_confInterval != -1) {
465 ms = 1000 * _confInterval;
466 }
467 else {
468 QTime currTime = currentDateAndTimeGPS().time();
469 QTime nextShotTime;
470 if (settings.value("onTheFlyInterval").toString() == "1 min") {
471 _confInterval = 60;
472 nextShotTime = QTime(currTime.hour(), currTime.minute()+1, 0);
473 }
474 else if (settings.value("onTheFlyInterval").toString() == "5 min") {
475 _confInterval = 300;
476 nextShotTime = QTime(currTime.hour(), currTime.minute()+5, 0);
477 }
478 else if (settings.value("onTheFlyInterval").toString() == "1 hour") {
479 _confInterval = 3600;
480 nextShotTime = QTime(currTime.hour()+1, 0, 0);
481 }
482 else {
483 _confInterval = 86400;
484 nextShotTime = QTime(23, 59, 59, 999);
485 }
486
487 ms = currTime.msecsTo(nextShotTime);
488 if (ms < 30000) {
489 ms = 30000;
490 }
491 }
492
493 QTimer::singleShot(ms, this, SLOT(slotReadMountPoints()));
494}
495
496//
497////////////////////////////////////////////////////////////////////////////
498int bncCaster::myWrite(QTcpSocket* sock, const char* buf, int bufLen) {
499 sock->write(buf, bufLen);
500 for (int ii = 1; ii <= 10; ii++) {
501 if (sock->waitForBytesWritten(10)) { // wait 10 ms
502 return bufLen;
503 }
504 }
505 return -1;
506}
507
508//
509////////////////////////////////////////////////////////////////////////////
510void bncCaster::reopenOutFile() {
511
512 bncSettings settings;
513
514 QString outFileName = settings.value("outFile").toString();
515 if ( !outFileName.isEmpty() ) {
516 expandEnvVar(outFileName);
517 if (!_outFile || _outFile->fileName() != outFileName) {
518 delete _out;
519 delete _outFile;
520 _outFile = new QFile(outFileName);
521 if ( Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) {
522 _outFile->open(QIODevice::WriteOnly | QIODevice::Append);
523 }
524 else {
525 _outFile->open(QIODevice::WriteOnly);
526 }
527 _out = new QTextStream(_outFile);
528 _out->setRealNumberNotation(QTextStream::FixedNotation);
529 }
530 }
531 else {
532 delete _out; _out = 0;
533 delete _outFile; _outFile = 0;
534 }
535}
536
537// Output into the Miscellaneous socket
538////////////////////////////////////////////////////////////////////////////
539void bncCaster::slotNewRawData(QByteArray staID, QByteArray data) {
540 if (_miscSockets && (_miscMount == "ALL" || _miscMount == staID)) {
541 QMutableListIterator<QTcpSocket*> is(*_miscSockets);
542 while (is.hasNext()) {
543 QTcpSocket* sock = is.next();
544 if (sock->state() == QAbstractSocket::ConnectedState) {
545 sock->write(data);
546 }
547 else if (sock->state() != QAbstractSocket::ConnectingState) {
548 delete sock;
549 is.remove();
550 }
551 }
552 }
553}
554
555// New Connection
556////////////////////////////////////////////////////////////////////////////
557void bncCaster::slotNewMiscConnection() {
558 _miscSockets->push_back( _miscServer->nextPendingConnection() );
559 emit( newMessage(QString("New client connection on Miscellaneous Output Port: # %1")
560 .arg(_miscSockets->size()).toAscii(), true) );
561}
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