158 lines
No EOL
2.8 KiB
C++
158 lines
No EOL
2.8 KiB
C++
/*
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* Copyright (C) 2016,2017 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 "DMRLookup.h"
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#include "Timer.h"
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#include "Log.h"
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <cctype>
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CDMRLookup::CDMRLookup(const std::string& filename, unsigned int reloadTime) :
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CThread(),
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m_filename(filename),
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m_reloadTime(reloadTime),
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m_table(),
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m_mutex(),
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m_stop(false)
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{
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}
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CDMRLookup::~CDMRLookup()
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{
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}
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bool CDMRLookup::read()
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{
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bool ret = load();
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if (m_reloadTime > 0U)
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run();
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return ret;
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}
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void CDMRLookup::entry()
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{
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LogInfo("Started the DMR Id lookup reload thread");
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CTimer timer(1U, 3600U * m_reloadTime);
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timer.start();
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while (!m_stop) {
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sleep(1000U);
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timer.clock();
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if (timer.hasExpired()) {
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load();
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timer.start();
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}
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}
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LogInfo("Stopped the DMR Id lookup reload thread");
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}
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void CDMRLookup::stop()
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{
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if (m_reloadTime == 0U) {
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delete this;
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return;
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}
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m_stop = true;
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wait();
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}
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std::string CDMRLookup::find(unsigned int id)
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{
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std::string callsign;
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if (id == 0xFFFFFFU)
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return std::string("ALL");
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m_mutex.lock();
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try {
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callsign = m_table.at(id);
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} catch (...) {
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char text[10U];
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::sprintf(text, "%u", id);
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callsign = std::string(text);
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}
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m_mutex.unlock();
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return callsign;
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}
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bool CDMRLookup::exists(unsigned int id)
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{
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m_mutex.lock();
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bool found = m_table.count(id) == 1U;
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m_mutex.unlock();
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return found;
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}
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bool CDMRLookup::load()
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{
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FILE* fp = ::fopen(m_filename.c_str(), "rt");
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if (fp == NULL) {
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LogWarning("Cannot open the Id lookup file - %s", m_filename.c_str());
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return false;
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}
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m_mutex.lock();
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// Remove the old entries
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m_table.clear();
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char buffer[100U];
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while (::fgets(buffer, 100U, fp) != NULL) {
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if (buffer[0U] == '#')
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continue;
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char* p1 = ::strtok(buffer, " \t\r\n");
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char* p2 = ::strtok(NULL, " \t\r\n");
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if (p1 != NULL && p2 != NULL) {
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unsigned int id = (unsigned int)::atoi(p1);
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for (char* p = p2; *p != 0x00U; p++)
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*p = ::toupper(*p);
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m_table[id] = std::string(p2);
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}
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}
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m_mutex.unlock();
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::fclose(fp);
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size_t size = m_table.size();
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if (size == 0U)
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return false;
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LogInfo("Loaded %u Ids to the callsign lookup table", size);
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return true;
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} |