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YSFClients/DGIdGateway/IMRSNetwork.cpp

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/*
* Copyright (C) 2009-2014,2016,2017,2018,2020 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "IMRSNetwork.h"
#include "YSFDefines.h"
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned int IMRS_PORT = 21110U;
CIMRSNetwork::CIMRSNetwork() :
m_socket(IMRS_PORT),
m_dgIds()
{
}
CIMRSNetwork::~CIMRSNetwork()
{
}
void CIMRSNetwork::addDGId(unsigned int dgId, const std::vector<IMRSDest*>& destinations, bool debug)
{
IMRSDGId* f = new IMRSDGId;
f->m_dgId = dgId;
f->m_destinations = destinations;
f->m_debug = debug;
m_dgIds.push_back(f);
}
bool CIMRSNetwork::open()
{
LogMessage("Opening IMRS network connection");
return m_socket.open();
}
void CIMRSNetwork::write(unsigned int dgId, const unsigned char* data)
{
assert(data != NULL);
IMRSDGId* ptr = find(dgId);
if (ptr == NULL)
return;
unsigned char buffer[200U];
for (std::vector<IMRSDest*>::const_iterator it = ptr->m_destinations.begin(); it != ptr->m_destinations.end(); ++it) {
if (ptr->m_debug)
CUtils::dump(1U, "IMRS Network Data Sent", buffer, 130U);
m_socket.write(buffer, 130U, (*it)->m_address, IMRS_PORT);
}
}
void CIMRSNetwork::link()
{
}
void CIMRSNetwork::unlink()
{
}
void CIMRSNetwork::clock(unsigned int ms)
{
unsigned char buffer[500U];
in_addr address;
unsigned int port;
int length = m_socket.read(buffer, 500U, address, port);
if (length <= 0)
return;
if (port != IMRS_PORT)
return;
IMRSDGId* ptr = find(address);
if (ptr == NULL)
return;
if (ptr->m_debug)
CUtils::dump(1U, "IMRS Network Data Received", buffer, length);
unsigned char len = length;
ptr->m_buffer.addData(&len, 1U);
ptr->m_buffer.addData(buffer, len);
}
unsigned int CIMRSNetwork::read(unsigned int dgId, unsigned char* data)
{
assert(data != NULL);
IMRSDGId* ptr = find(dgId);
if (ptr == NULL)
return 0U;
if (ptr->m_buffer.isEmpty())
return 0U;
unsigned char len = 0U;
ptr->m_buffer.getData(&len, 1U);
ptr->m_buffer.getData(data, len);
return len;
}
void CIMRSNetwork::close()
{
LogMessage("Closing IMRS network connection");
m_socket.close();
}
IMRSDGId* CIMRSNetwork::find(in_addr address) const
{
for (std::vector<IMRSDGId*>::const_iterator it1 = m_dgIds.begin(); it1 != m_dgIds.end(); ++it1) {
for (std::vector<IMRSDest*>::const_iterator it2 = (*it1)->m_destinations.begin(); it2 != (*it1)->m_destinations.end(); ++it2) {
if (address.s_addr == (*it2)->m_address.s_addr)
return *it1;
}
}
return NULL;
}
IMRSDGId* CIMRSNetwork::find(unsigned int dgId) const
{
for (std::vector<IMRSDGId*>::const_iterator it = m_dgIds.begin(); it != m_dgIds.end(); ++it) {
if (dgId == (*it)->m_dgId)
return *it;
}
return NULL;
}