Jonathan Naylor
8 years ago
parent
9991333e26
commit
b8f0036fb5
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/*
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* Copyright (C) 2016 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 "Reflectors.h"
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#include "Hosts.h"
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#include "Log.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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CReflectors::CReflectors(const std::string& hostsFile, unsigned int statusPort) :
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m_hostsFile(hostsFile),
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m_socket(statusPort),
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m_reflectors(),
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m_it(),
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m_timer(1000U, 60U)
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{
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assert(statusPort > 0U);
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}
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CReflectors::~CReflectors()
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{
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}
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bool CReflectors::load()
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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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CHosts hosts(m_hostsFile);
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ret = hosts.read();
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if (!ret)
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return false;
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std::vector<CYSFHost*>& hostList = hosts.list();
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for (std::vector<CYSFHost*>::const_iterator it = hostList.begin(); it != hostList.end(); ++it) {
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CYSFReflector* reflector = new CYSFReflector;
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reflector->m_address = CUDPSocket::lookup((*it)->m_address);
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reflector->m_port = (*it)->m_port;
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m_reflectors.push_back(reflector);
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}
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m_it = m_reflectors.begin();
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m_timer.start();
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return true;
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}
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CYSFReflector* CReflectors::find(const std::string& id)
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{
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for (std::vector<CYSFReflector*>::iterator it = m_reflectors.begin(); it != m_reflectors.end(); ++it) {
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if (id == (*it)->m_id)
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if ((*it)->m_timer.isRunning() && (*it)->m_timer.hasExpired()) {
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LogDebug("Found id %s, but it has expired", id.c_str());
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return NULL;
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} else {
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return *it;
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}
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}
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return NULL;
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}
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void CReflectors::clock(unsigned int ms)
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{
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m_timer.clock(ms);
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if (m_timer.isRunning() && m_timer.hasExpired()) {
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m_socket.write((unsigned char*)"YSFS", 4U, (*m_it)->m_address, (*m_it)->m_port);
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++m_it;
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if (m_it == m_reflectors.end())
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m_it = m_reflectors.begin();
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m_timer.start();
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}
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in_addr address;
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unsigned int port;
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unsigned char buffer[200U];
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int ret = m_socket.read(buffer, 200U, address, port);
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if (ret > 0) {
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if (::memcmp(buffer + 0U, "YSFS", 4U) == 0) {
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buffer[42U] = 0x00U;
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std::string id = std::string((char*)(buffer + 4U), 5U);
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std::string name = std::string((char*)(buffer + 9U), 16U);
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std::string desc = std::string((char*)(buffer + 25U), 14U);
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unsigned int cnt = ::atoi((char*)(buffer + 39U));
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for (std::vector<CYSFReflector*>::iterator it = m_reflectors.begin(); it != m_reflectors.end(); ++it) {
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in_addr itAddr = (*it)->m_address;
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unsigned int itPort = (*it)->m_port;
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if (itAddr.s_addr == address.s_addr && itPort == port) {
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(*it)->m_id = id;
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(*it)->m_name = name;
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(*it)->m_desc = desc;
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(*it)->m_count = cnt;
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(*it)->m_timer.start();
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break;
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}
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}
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}
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}
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for (std::vector<CYSFReflector*>::iterator it = m_reflectors.begin(); it != m_reflectors.end(); ++it)
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(*it)->m_timer.clock(ms);
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}
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@ -0,0 +1,69 @@
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/*
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* Copyright (C) 2016 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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#if !defined(Reflectors_H)
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#define Reflectors_H
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#include "UDPSocket.h"
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#include "Timer.h"
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#include "Hosts.h"
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#include <string>
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class CYSFReflector {
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public:
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CYSFReflector() :
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m_id(),
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m_name(),
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m_desc(),
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m_count(0U),
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m_address(),
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m_port(0U),
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m_timer(1000U, 700U)
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{
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}
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std::string m_id;
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std::string m_name;
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std::string m_desc;
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unsigned int m_count;
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in_addr m_address;
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unsigned int m_port;
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CTimer m_timer;
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};
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class CReflectors {
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public:
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CReflectors(const std::string& hostsFile, unsigned int statusPort);
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~CReflectors();
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bool load();
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CYSFReflector* find(const std::string& id);
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void clock(unsigned int ms);
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private:
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std::string m_hostsFile;
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CUDPSocket m_socket;
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std::vector<CYSFReflector*> m_reflectors;
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std::vector <CYSFReflector*>::iterator m_it;
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CTimer m_timer;
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};
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#endif
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