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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
// urfd -- The universal reflector
// Copyright © 2023 Thomas A. Early N7TAE
//
// 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 3 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, see <https://www.gnu.org/licenses/>.
#pragma once
#include <map>
#include <atomic>
#include <future>
#include "Buffer.h"
#include "Callsign.h"
#include "Configure.h"
// compare function for std::map::find
struct CCallsignCompare
{
bool operator() (const CCallsign &cs1, const CCallsign &cs2) const
{
return cs1.HasLowerCallsign(cs2);
}
};
////////////////////////////////////////////////////////////////////////////////////////
class CLookup
{
public:
// constructor
CLookup() : keep_running(true), m_LastModTime(0) {}
// destructor
virtual ~CLookup();
void LookupInit();
void LookupClose();
// locks
void Lock(void) { m_Mutex.lock(); }
void Unlock(void) { m_Mutex.unlock(); }
protected:
std::time_t GetLastModTime();
virtual void LoadParameters() = 0;
virtual void ClearContents() = 0;
void Thread();
// refresh
virtual bool LoadContentFile(CBuffer &buf) = 0;
virtual bool LoadContentHttp(CBuffer &buf) = 0;
virtual void RefreshContentFile(const CBuffer &) = 0;
virtual void RefreshContentHttp(const CBuffer &) = 0;
std::mutex m_Mutex;
ERefreshType m_Type;
unsigned m_Refresh;
std::string m_Path, m_Host, m_Suffix;
std::time_t m_LastModTime;
std::atomic<bool> keep_running;
std::future<void> m_Future;
};

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