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// Low-level type for atomic operations -*- C++ -*-

// Copyright (C) 2004, 2009, 2010 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library 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 3, 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 General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

/** @file bits/atomic_word.h

 *  This is an internal header file, included by other library headers.

 *  Do not attempt to use it directly. @headername{ext/atomicity.h}

 */

#ifndef _GLIBCXX_ATOMIC_WORD_H

#define _GLIBCXX_ATOMIC_WORD_H  1

typedef int _Atomic_word;

#ifdef _ARCH_PPC

#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("isync":::"memory")

#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("sync":::"memory")

#else

#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory")

#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory")

#endif

#endif