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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2012 Intel Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include "phy.h"
struct bt_phy {
volatile int ref_count;
};
struct bt_phy *bt_phy_new(void)
{
struct bt_phy *phy;
phy = calloc(1, sizeof(*phy));
if (!phy)
return NULL;
return bt_phy_ref(phy);
}
struct bt_phy *bt_phy_ref(struct bt_phy *phy)
{
if (!phy)
return NULL;
__sync_fetch_and_add(&phy->ref_count, 1);
return phy;
}
void bt_phy_unref(struct bt_phy *phy)
{
if (!phy)
return;
if (__sync_sub_and_fetch(&phy->ref_count, 1))
return;
free(phy);
}
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