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F4KXL_DStarGateway/Common/CacheManager.cpp

137 lines
4.1 KiB

/*
* Copyright (C) 2010,2011,2012 by Jonathan Naylor G4KLX
* Copyright (c) 2017 by Thomas A. Early N7TAE
* Copyright (c) 2021 by Geoffrey Merck F4FXL / KC3FRA
*
* 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 "CacheManager.h"
#include "DStarDefines.h"
CCacheManager::CCacheManager() :
m_userCache(),
m_gatewayCache(),
m_repeaterCache()
{
}
CCacheManager::~CCacheManager()
{
}
// returns a new CUserData if there is a user and a and gateway
CUserData *CCacheManager::findUser(const std::string& user)
{
mux.lock();
CUserRecord *ur = m_userCache.find(user);
if (ur == NULL) {
mux.unlock();
return NULL;
}
std::string gateway(ur->getRepeater()); // it's not a gateway yet
CRepeaterRecord *rr = m_repeaterCache.find(gateway);
if (rr == NULL) {
gateway = ur->getRepeater();
gateway.resize(LONG_CALLSIGN_LENGTH - 1U, ' ');
gateway.push_back('G'); // now it's a gateway
} else
gateway = rr->getGateway();
CGatewayRecord *gr = m_gatewayCache.find(gateway);
if (gr == NULL) {
mux.unlock();
return NULL;
}
CUserData *userdata = new CUserData(user, ur->getRepeater(), gr->getGateway(), gr->getAddress());
mux.unlock();
return userdata;
}
CGatewayData *CCacheManager::findGateway(const std::string& gateway)
{
mux.lock();
CGatewayRecord *gr = m_gatewayCache.find(gateway);
if (gr == NULL)
return NULL;
CGatewayData *gatewaydata = new CGatewayData(gateway, gr->getAddress(), gr->getProtocol());
mux.unlock();
return gatewaydata;
}
CRepeaterData* CCacheManager::findRepeater(const std::string& repeater)
{
mux.lock();
CRepeaterRecord *rr = m_repeaterCache.find(repeater);
std::string gateway;
if (rr == NULL) {
gateway = repeater;
gateway.resize(LONG_CALLSIGN_LENGTH - 1U, ' ');
gateway.push_back('G');
} else {
gateway = rr->getGateway();
}
CGatewayRecord *gr = m_gatewayCache.find(gateway);
if (gr == NULL) {
mux.unlock();
return NULL;
}
CRepeaterData *repeaterdata = new CRepeaterData(repeater, gr->getGateway(), gr->getAddress(), gr->getProtocol());
mux.unlock();
return repeaterdata;
}
void CCacheManager::updateUser(const std::string& user, const std::string& repeater, const std::string& gateway, const std::string& address, const std::string& timestamp, DSTAR_PROTOCOL protocol, bool addrLock, bool protoLock)
{
mux.lock();
std::string repeater7 = repeater.substr(0, LONG_CALLSIGN_LENGTH - 1U);
std::string gateway7 = gateway.substr(0, LONG_CALLSIGN_LENGTH - 1U);
m_userCache.update(user, repeater, timestamp);
// Only store non-standard repeater-gateway pairs
if (repeater7.compare(gateway7))
m_repeaterCache.update(repeater, gateway);
m_gatewayCache.update(gateway, address, protocol, addrLock, protoLock);
mux.unlock();
}
void CCacheManager::updateRepeater(const std::string& repeater, const std::string& gateway, const std::string& address, DSTAR_PROTOCOL protocol, bool addrLock, bool protoLock)
{
mux.lock();
std::string repeater7 = repeater.substr(0, LONG_CALLSIGN_LENGTH - 1U);
std::string gateway7 = gateway.substr(0, LONG_CALLSIGN_LENGTH - 1U);
// Only store non-standard repeater-gateway pairs
if (repeater7.compare(gateway7))
m_repeaterCache.update(repeater, gateway);
m_gatewayCache.update(gateway, address, protocol, addrLock, protoLock);
mux.unlock();
}
void CCacheManager::updateGateway(const std::string& gateway, const std::string& address, DSTAR_PROTOCOL protocol, bool addrLock, bool protoLock)
{
mux.lock();
m_gatewayCache.update(gateway, address, protocol, addrLock, protoLock);
mux.unlock();
}

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