/*
 * Copyright 2003-2017 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 "MaskMonitor.hxx"

void
MaskMonitor::OrMask(unsigned new_mask)
{
	if (pending_mask.fetch_or(new_mask) == 0)
		defer.Schedule();
}

void
MaskMonitor::RunDeferred() noexcept
{
	const unsigned mask = pending_mask.exchange(0);
	if (mask != 0)
		callback(mask);
}