chain.h

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/*
 *  Copyright (c) 2010 embedded brains GmbH.
 *
 *  COPYRIGHT (c) 1989-2006.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_SCORE_CHAIN_H
#define _RTEMS_SCORE_CHAIN_H

#ifdef __cplusplus
extern "C" {
#endif

typedef struct Chain_Node_struct Chain_Node;

struct Chain_Node_struct {
  Chain_Node *next;
  Chain_Node *previous;
};

typedef union {
  struct {
    Chain_Node Node;
    Chain_Node *fill;
  } Head;

  struct {
    Chain_Node *fill;
    Chain_Node Node;
  } Tail;
} Chain_Control;

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */