source: ntrip/trunk/BNC/combination/cmbcaster.cpp@ 2993

Last change on this file since 2993 was 2990, checked in by mervart, 14 years ago
File size: 2.9 KB
Line 
1/* -------------------------------------------------------------------------
2 * BKG NTRIP Server
3 * -------------------------------------------------------------------------
4 *
5 * Class: cmbCaster
6 *
7 * Purpose: Connection to NTRIP Caster
8 *
9 * Author: L. Mervart
10 *
11 * Created: 29-Jan-2011
12 *
13 * Changes:
14 *
15 * -----------------------------------------------------------------------*/
16
17#include <math.h>
18#include "cmbcaster.h"
19#include "bncsettings.h"
20#include "bncversion.h"
21#include "bncapp.h"
22
23using namespace std;
24
25// Constructor
26////////////////////////////////////////////////////////////////////////////
27cmbCaster::cmbCaster() {
28 bncSettings settings;
29 _mountpoint = settings.value("cmbMountpoint").toString();
30 _outSocket = 0;
31 _sOpenTrial = 0;
32 connect(this, SIGNAL(newMessage(QByteArray,bool)),
33 ((bncApp*)qApp), SLOT(slotMessage(const QByteArray,bool)));
34}
35
36// Destructor
37////////////////////////////////////////////////////////////////////////////
38cmbCaster::~cmbCaster() {
39 delete _outSocket;
40}
41
42// Start the Communication with NTRIP Caster
43////////////////////////////////////////////////////////////////////////////
44void cmbCaster::open() {
45
46 if (_mountpoint.isEmpty()) {
47 return;
48 }
49
50 if (_outSocket != 0 &&
51 _outSocket->state() == QAbstractSocket::ConnectedState) {
52 return;
53 }
54
55 delete _outSocket; _outSocket = 0;
56
57 double minDt = pow(2.0,_sOpenTrial);
58 if (++_sOpenTrial > 4) {
59 _sOpenTrial = 4;
60 }
61 if (_outSocketOpenTime.isValid() &&
62 _outSocketOpenTime.secsTo(QDateTime::currentDateTime()) < minDt) {
63 return;
64 }
65 else {
66 _outSocketOpenTime = QDateTime::currentDateTime();
67 }
68
69 bncSettings settings;
70 _outSocket = new QTcpSocket();
71 QString password;
72 _outSocket->connectToHost(settings.value("cmbOutHost").toString(),
73 settings.value("cmbOutPort").toInt());
74 password = settings.value("cmbPassword").toString();
75
76 const int timeOut = 5000; // 5 seconds
77 if (!_outSocket->waitForConnected(timeOut)) {
78 delete _outSocket;
79 _outSocket = 0;
80 emit(newMessage("Broadcaster: Connect timeout", true));
81 return;
82 }
83
84 QByteArray msg = "SOURCE " + password.toAscii() + " /" +
85 _mountpoint.toAscii() + "\r\n" +
86 "Source-Agent: NTRIP BNC/" BNCVERSION "\r\n\r\n";
87
88 _outSocket->write(msg);
89 _outSocket->waitForBytesWritten();
90
91 _outSocket->waitForReadyRead();
92 QByteArray ans = _outSocket->readLine();
93
94 if (ans.indexOf("OK") == -1) {
95 delete _outSocket;
96 _outSocket = 0;
97 emit(newMessage("Broadcaster: Connection broken", true));
98 }
99 else {
100 emit(newMessage("Broadcaster: Connection opened", true));
101 _sOpenTrial = 0;
102 }
103}
104
105// Write buffer
106////////////////////////////////////////////////////////////////////////////
107void cmbCaster::write(char* buffer, unsigned len) {
108 if (_outSocket) {
109 _outSocket->write(buffer, len);
110 _outSocket->flush();
111 }
112}
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