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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _OSL_INTERLOCK_H_
#define _OSL_INTERLOCK_H_
#include "sal/config.h"
#include "sal/saldllapi.h"
#include "sal/types.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef sal_Int32 oslInterlockedCount;
/** Increments the count variable addressed by pCount.
@param pCount Address of count variable
@return The adjusted value of the count variable.
*/
SAL_DLLPUBLIC oslInterlockedCount SAL_CALL osl_incrementInterlockedCount(oslInterlockedCount* pCount);
/** Decrement the count variable addressed by pCount.
@param pCount Address of count variable
@return The adjusted value of the count variable.
*/
SAL_DLLPUBLIC oslInterlockedCount SAL_CALL osl_decrementInterlockedCount(oslInterlockedCount* pCount);
/// @cond INTERNAL
/** Increments the count variable addressed by p.
@attention This functionality should only be used internally within
LibreOffice.
@param p Address of count variable
@return The adjusted value of the count variable.
@since LibreOffice 3.7
*/
#if defined( HAVE_GCC_BUILTIN_ATOMIC )
# define osl_atomic_increment(p) __sync_add_and_fetch((p), 1)
#else
# define osl_atomic_increment(p) osl_incrementInterlockedCount((p))
#endif
/** Decrement the count variable addressed by p.
@attention This functionality should only be used internally within
LibreOffice.
@param p Address of count variable
@return The adjusted value of the count variable.
@since LibreOffice 3.7
*/
#if defined( HAVE_GCC_BUILTIN_ATOMIC )
# define osl_atomic_decrement(p) __sync_sub_and_fetch((p), 1)
#else
# define osl_atomic_decrement(p) osl_decrementInterlockedCount((p))
#endif
/// @endcond
#ifdef __cplusplus
}
#endif
#endif /* _OSL_INTERLOCK_H_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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