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/* Copyright (C) 2024 J.F.Dockes
*
* License: GPL 2.1
*
* 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 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef RCLMONRCV_WIN32_H
#define RCLMONRCV_WIN32_H
#include "rclmonrcv.h"
#ifdef FSWATCH_WIN32
#include <string>
#include <queue>
typedef long WatchID;
// Virtual interface for the monitor callback. Note: this for compatibility with the efsw code, as
// rclmon uses a pull, not push interface. The callback pushes the events to a local queue from
// which they are then pulled by the upper level code.
enum class Action {Add = 1, Delete = 2, Modify = 3, Move = 4};
class FileWatchListener {
public:
virtual ~FileWatchListener() {}
virtual void handleFileAction(WatchID watchid, const std::string& dir, const std::string& fn,
Action action, bool isdir, std::string oldfn = "" ) = 0;
};
class RclFSWatchWin32;
// Adapter for the rclmon interface
class RclMonitorWin32 : public RclMonitor, public FileWatchListener {
public:
RclMonitorWin32();
virtual ~RclMonitorWin32();
virtual bool addWatch(const std::string& path, bool /*isDir*/, bool /*follow*/) override;
virtual bool getEvent(RclMonEvent& ev, int msecs = -1) override;
virtual bool ok() const override;
// Does this monitor generate 'exist' events at startup?
virtual bool generatesExist() const override;
// Can the caller avoid setting watches on subdirs ?
virtual bool isRecursive() const override;
void handleFileAction(WatchID /*watchid*/, const std::string& dir, const std::string& fn,
Action action, bool isdir, std::string oldfn = "");
// Save significant errno after monitor calls
int saved_errno{0};
private:
std::queue<RclMonEvent> m_events;
RclFSWatchWin32 *m_fswatcher;
};
#endif // FSWATCH_WIN32
#endif // RCLMONRCV_WIN32_H
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