schedulernode.h

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/*
 * Copyright (c) 2014, 2016 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * 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_SCHEDULERNODE_H
#define _RTEMS_SCORE_SCHEDULERNODE_H
 
#include <rtems/score/basedefs.h>
#include <rtems/score/chain.h>
#include <rtems/score/priority.h>
#include <rtems/score/smplockseq.h>
 
struct _Thread_Control;
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#if defined(RTEMS_SMP)
typedef enum {
  SCHEDULER_NODE_REQUEST_NOT_PENDING,
 
  SCHEDULER_NODE_REQUEST_ADD,
 
  SCHEDULER_NODE_REQUEST_REMOVE,
 
  SCHEDULER_NODE_REQUEST_NOTHING,
 
} Scheduler_Node_request;
#endif
 
typedef struct Scheduler_Node Scheduler_Node;
 
struct Scheduler_Node {
#if defined(RTEMS_SMP)
  union {
    Chain_Node Chain;
    RBTree_Node RBTree;
  } Node;
 
  int sticky_level;
 
  struct _Thread_Control *user;
 
  struct _Thread_Control *idle;
#endif
 
  struct _Thread_Control *owner;
 
#if defined(RTEMS_SMP)
  struct {
    Chain_Node Wait_node;
 
    union {
      Chain_Node Chain;
 
      Scheduler_Node *next;
    } Scheduler_node;
 
    Scheduler_Node *next_request;
 
    Scheduler_Node_request request;
  } Thread;
#endif
 
  struct {
    Priority_Aggregation Priority;
  } Wait;
 
  struct {
    Priority_Control value;
 
#if defined(RTEMS_SMP)
    SMP_sequence_lock_Control Lock;
#endif
  } Priority;
};
 
#if defined(RTEMS_SMP)
extern const size_t _Scheduler_Node_size;
#endif
 
#if defined(RTEMS_SMP)
#define SCHEDULER_NODE_OF_THREAD_WAIT_NODE( node ) \
  RTEMS_CONTAINER_OF( node, Scheduler_Node, Thread.Wait_node )
 
#define SCHEDULER_NODE_OF_THREAD_SCHEDULER_NODE( node ) \
  RTEMS_CONTAINER_OF( node, Scheduler_Node, Thread.Scheduler_node.Chain )
#endif
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _RTEMS_SCORE_SCHEDULERNODE_H */