mpd/src/event/IdleMonitor.cxx

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2013-08-10 10:33:43 +02:00
/*
* 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.
*/
#include "config.h"
#include "IdleMonitor.hxx"
#include "Loop.hxx"
void
IdleMonitor::Cancel()
{
assert(loop.IsInside());
if (!IsActive())
return;
g_source_remove(source_id);
source_id = 0;
}
void
IdleMonitor::Schedule()
{
assert(loop.IsInside());
if (IsActive())
/* already scheduled */
return;
source_id = loop.AddIdle(Callback, this);
}
void
IdleMonitor::Run()
{
assert(loop.IsInside());
assert(source_id != 0);
source_id = 0;
OnIdle();
}
gboolean
IdleMonitor::Callback(gpointer data)
{
IdleMonitor &monitor = *(IdleMonitor *)data;
monitor.Run();
return false;
}