/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
/*
* This file is part of LibreOffice published API .
*/
#ifndef INCLUDED_OSL_INTERLCK_H
#define INCLUDED_OSL_INTERLCK_H
#include "sal/config.h"
#include "sal/saldllapi.h"
#include "sal/types.h"
#if defined (_WIN32)
#include <intrin.h>
#endif
#if defined LIBO_INTERNAL_ONLY
#include "config_global.h"
#endif
#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 4 . 0
*/
#if HAVE_GCC_BUILTIN_ATOMIC
# define osl_atomic_increment(p) __sync_add_and_fetch((p), 1 )
#elif defined _WIN32
# define osl_atomic_increment(p) _InterlockedIncrement(p)
#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 4 . 0
*/
#if HAVE_GCC_BUILTIN_ATOMIC
# define osl_atomic_decrement(p) __sync_sub_and_fetch((p), 1 )
#elif defined _WIN32
# define osl_atomic_decrement(p) _InterlockedDecrement(p)
#else
# define osl_atomic_decrement(p) osl_decrementInterlockedCount((p))
#endif
/// @endcond
#ifdef __cplusplus
}
#endif
#endif // INCLUDED_OSL_INTERLCK_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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