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/*
* Copyright 2005-2021 Fabrice Colin
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _INOTIFY_MONITOR_H
#define _INOTIFY_MONITOR_H
#include <stdint.h>
#include <pthread.h>
#include <string>
#include <map>
#include <queue>
#include "MonitorInterface.h"
/// Linux inotify monitor.
class INotifyMonitor : public MonitorInterface
{
public:
INotifyMonitor();
virtual ~INotifyMonitor();
/// Returns the maximum number of files that can be monitored.
virtual unsigned int getLimit(void) const;
/// Adds a watch for the specified location.
virtual bool addLocation(const std::string &location, bool isDirectory);
/// Removes the watch for the specified location.
virtual bool removeLocation(const std::string &location);
/// Removes watches for the specified location and all underneath.
virtual bool removeLocations(const std::string &location);
/// Retrieves pending events.
virtual bool retrievePendingEvents(std::queue<MonitorEvent> &events);
/// Drops pending events.
virtual void dropPendingEvents(void);
protected:
pthread_mutex_t m_mutex;
std::queue<MonitorEvent> m_internalEvents;
std::map<std::string, int> m_locations;
std::map<uint32_t, MonitorEvent> m_movedFrom;
unsigned int m_maxUserWatches;
unsigned int m_watchesCount;
bool removeWatch(const std::string &location);
bool retrievePendingEvents(std::queue<MonitorEvent> &events,
bool dropAll);
private:
INotifyMonitor(const INotifyMonitor &other);
INotifyMonitor &operator=(const INotifyMonitor &other);
};
#endif // _INOTIFY_MONITOR_H
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