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134 lines
3.5 KiB
134 lines
3.5 KiB
/*
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* Copyright (C) 2012,2013 by Jonathan Naylor G4KLX
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* Copyright (c) 2017-2018 by Thomas A. Early
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* Copyright (c) 2021 by Geoffrey Merck F4FXL / KC3FRA
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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 <cassert>
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#include "DPlusProtocolHandlerPool.h"
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#include "Utils.h"
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#include "Log.h"
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CDPlusProtocolHandlerPool::CDPlusProtocolHandlerPool(const unsigned int port, const std::string &addr) :
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m_basePort(port),
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m_address(addr)
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{
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assert(port > 0U);
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m_index = m_pool.end();
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CLog::logInfo("DExtra UDP port base = %u\n", port);
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}
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CDPlusProtocolHandlerPool::~CDPlusProtocolHandlerPool()
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{
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while (m_pool.end() != m_pool.begin()) {
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auto it = m_pool.begin();
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delete it->second;
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m_pool.erase(it);
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}
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}
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CDPlusProtocolHandler* CDPlusProtocolHandlerPool::getIncomingHandler()
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{
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auto it = m_pool.find(m_basePort);
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if(it != m_pool.end())
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return it->second;
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return getHandler(m_basePort);
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}
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CDPlusProtocolHandler* CDPlusProtocolHandlerPool::getHandler()
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{
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return getHandler(m_basePort + 1U);
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}
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CDPlusProtocolHandler* CDPlusProtocolHandlerPool::getHandler(unsigned int port)
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{
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while (m_pool.end() != m_pool.find(port))
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port++; // find an unused port
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CDPlusProtocolHandler *proto = new CDPlusProtocolHandler(port, m_address);
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if (proto) {
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if (proto->open()) {
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m_pool[port] = proto;
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CLog::logInfo("New D Plus Protocol Handler now on UDP port %u.\n", port);
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} else {
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delete proto;
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proto = NULL;
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CLog::logError("Can't open new DPlus UDP port %u!\n", port);
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}
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} else
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CLog::logError("Can't allocate new DPlus ProtocolHandler at port %u\n", port);
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return proto;
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}
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void CDPlusProtocolHandlerPool::release(CDPlusProtocolHandler *handler)
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{
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assert(handler != NULL);
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for (auto it=m_pool.begin(); it!=m_pool.end(); it++) {
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if (it->second == handler) {
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m_pool.erase(it);
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handler->close();
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delete handler;
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m_index = m_pool.end(); // m_index might be ut of order so reset it
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CLog::logInfo("Releasing DPlus ProtocolHandler on port %u.\n", it->first);
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return;
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}
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}
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// we should never get here!
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CLog::logInfo("ERROR: could not find DPlus ProtocolHander (port=%u) to release!\n", handler->getPort());
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}
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DPLUS_TYPE CDPlusProtocolHandlerPool::read()
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{
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if (m_index == m_pool.end())
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m_index = m_pool.begin();
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while (m_index != m_pool.end()) {
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DPLUS_TYPE type = m_index->second->read();
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if (type != DP_NONE)
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return type;
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m_index++;
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}
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return DP_NONE;
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}
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CHeaderData *CDPlusProtocolHandlerPool::readHeader()
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{
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return m_index->second->readHeader();
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}
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CAMBEData *CDPlusProtocolHandlerPool::readAMBE()
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{
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return m_index->second->readAMBE();
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}
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CPollData *CDPlusProtocolHandlerPool::readPoll()
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{
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return m_index->second->readPoll();
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}
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CConnectData *CDPlusProtocolHandlerPool::readConnect()
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{
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return m_index->second->readConnect();
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}
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void CDPlusProtocolHandlerPool::close()
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{
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for (auto it=m_pool.begin(); it!=m_pool.end(); it++)
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it->second->close();
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}
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