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ReferenceCounting.cpp
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ReferenceCounting.cpp
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/*
* Copyright (C) 2005-2011 Team XBMC
* http://www.xbmc.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, 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 XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "threads/Atomics.h"
#include "ReferenceCounting.h"
// Comment in this #define in order to see REFCNT events in the log.
//#define LOG_LIFECYCLE_EVENTS
#if defined(LOG_LIFECYCLE_EVENTS) || defined(DEBUG_REFS)
#include "utils/log.h"
#endif
namespace xbmcutil
{
Referenced::~Referenced() { /* place for the vtab */ }
void Referenced::Release() const
{
long ct = AtomicDecrement((long*)&refs);
#ifdef LOG_LIFECYCLE_EVENTS
CLog::Log(LOGDEBUG,"REFCNT decrementing to %ld on 0x%lx", ct, (long)(((void*)this)));
#endif
#ifndef DEBUG_REFS
if(ct == 0)
delete this;
#endif
}
void Referenced::Acquire() const
{
#ifdef LOG_LIFECYCLE_EVENTS
CLog::Log(LOGDEBUG,"REFCNT incrementing to %ld on 0x%lx",
InterlockedIncrement((long*)&refs), (long)(((void*)this)));
#else
AtomicIncrement((long*)&refs);
#endif
}
#ifdef DEBUG_REFS
void Referenced::check() const
{
long val = refs;
if (val <= 0)
{
CLog::Log(LOGERROR,"REFCNT: access of deleted Referenced. Count is %ld on 0x%lx",
val, (long)(((void*)this)));
}
}
#endif
}