102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
/*
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* Copyright (C) 2018 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "MobileGPS.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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#include <cmath>
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CMobileGPS::CMobileGPS(const std::string& address, unsigned int port, CDMRNetwork* network) :
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m_idTimer(1000U, 60U),
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m_address(),
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m_port(port),
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m_socket(),
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m_network(network)
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{
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assert(!address.empty());
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assert(port > 0U);
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assert(network != NULL);
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m_address = CUDPSocket::lookup(address);
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}
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CMobileGPS::~CMobileGPS()
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{
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}
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bool CMobileGPS::open()
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{
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bool ret = m_socket.open();
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if (!ret)
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return false;
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m_idTimer.start();
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return true;
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}
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void CMobileGPS::clock(unsigned int ms)
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{
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m_idTimer.clock(ms);
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if (m_idTimer.hasExpired()) {
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pollGPS();
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m_idTimer.start();
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}
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sendReport();
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}
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void CMobileGPS::close()
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{
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m_socket.close();
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}
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bool CMobileGPS::pollGPS()
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{
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return m_socket.write((unsigned char*)"MMDVMHost", 9U, m_address, m_port);
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}
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void CMobileGPS::sendReport()
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{
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// Grab GPS data if it's available
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unsigned char buffer[200U];
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in_addr address;
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unsigned int port;
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int ret = m_socket.read(buffer, 200U, address, port);
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if (ret <= 0)
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return;
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buffer[ret] = '\0';
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// Parse the GPS data
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char* pLatitude = ::strtok((char*)buffer, ",\n"); // Latitude
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char* pLongitude = ::strtok(NULL, ",\n"); // Longitude
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if (pLatitude == NULL || pLongitude == NULL)
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return;
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float latitude = float(::atof(pLatitude));
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float longitude = float(::atof(pLongitude));
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m_network->writeHomePosition(latitude, longitude);
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}
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