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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_SOCKET_DEFERRED_MONITOR_HXX
#define MPD_SOCKET_DEFERRED_MONITOR_HXX
#include "check.h"
#include "Compiler.h"
#ifdef USE_GLIB_EVENTLOOP
#include <glib.h>
#endif
#include <atomic>
class EventLoop;
/**
* Defer execution of an event into an #EventLoop.
*
* This class is thread-safe.
*/
class DeferredMonitor {
EventLoop &loop;
#ifdef USE_INTERNAL_EVENTLOOP
friend class EventLoop;
bool pending;
#endif
#ifdef USE_GLIB_EVENTLOOP
std::atomic<guint> source_id;
#endif
public:
#ifdef USE_INTERNAL_EVENTLOOP
DeferredMonitor(EventLoop &_loop)
:loop(_loop), pending(false) {}
#endif
#ifdef USE_GLIB_EVENTLOOP
DeferredMonitor(EventLoop &_loop)
:loop(_loop), source_id(0) {}
#endif
~DeferredMonitor() {
Cancel();
}
EventLoop &GetEventLoop() {
return loop;
}
void Schedule();
void Cancel();
protected:
virtual void RunDeferred() = 0;
private:
#ifdef USE_GLIB_EVENTLOOP
void Run();
static gboolean Callback(gpointer data);
#endif
};
#endif /* MAIN_NOTIFY_H */
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