text: /*
   * Copyright (c) Huawei Technologies Co., Ltd. 2013-2016. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote
   *    products derived from this software without specific prior
   *    written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Description: define atomic type and function
   * Author: none
   * Create: 2013
   */
  
  #ifndef __ASM_ATOMIC_H__
  #define __ASM_ATOMIC_H__
  
  #include "los_atomic.h"
  
  #ifdef __cplusplus
  #if __cplusplus
  extern "C" {
  #endif /* __cplusplus */
  #endif /* __cplusplus */
  
  #ifdef __LP64__
  #define atomic_t long
  #else
  #define atomic_t int
  #endif
  
  #define atomic_inc(atom)     LOS_AtomicInc(atom)
  #define atomic_dec(atom)    LOS_AtomicDec(atom)
  #define atomic_sub(n, v)      LOS_AtomicSub(v, n)
  #define atomic_add(n, v)     LOS_AtomicAdd(v, n)
  #define atomic_read(atom)    (*((volatile typeof(atom))(atom)))
  #ifdef __LP64__
  #define atomic_set(p, v)      LOS_AtomicXchg64bits(p, v)
  #else
  #define atomic_set(p, v)      LOS_AtomicXchg32bits(p, v)
  #endif
  #define ATOMIC_INIT(x)     (x)
  
  #define atomic_add_return(i, v)    LOS_AtomicAdd(v, i)
  #define atomic_inc_return(v)        LOS_AtomicIncRet(v)
  #define atomic_dec_return(v)       LOS_AtomicDecRet(v)
  #define atomic_dec_and_test(v)    (atomic_dec_return(v) == 0)
  
  #ifdef __cplusplus
  #if __cplusplus
  }
  #endif /* __cplusplus */
  #endif /* __cplusplus */
  
  #endif /* __ASM_ATOMIC_H__ */
  