threadq.h

Go to the documentation of this file.

/*
 *  COPYRIGHT (c) 1989-2014.
 *  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_THREADQ_H
#define _RTEMS_SCORE_THREADQ_H

#include <rtems/score/chain.h>
#include <rtems/score/isrlock.h>
#include <rtems/score/priority.h>
#include <rtems/score/rbtree.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct Thread_Control Thread_Control;

typedef struct Thread_queue_Control Thread_queue_Control;

typedef void ( *Thread_queue_Priority_change_operation )(
  Thread_Control       *the_thread,
  Priority_Control      new_priority,
  Thread_queue_Control *the_thread_queue
);

typedef void ( *Thread_queue_Initialize_operation )(
  Thread_queue_Control *the_thread_queue
);

typedef void ( *Thread_queue_Enqueue_operation )(
  Thread_queue_Control *the_thread_queue,
  Thread_Control       *the_thread
);

typedef void ( *Thread_queue_Extract_operation )(
  Thread_queue_Control *the_thread_queue,
  Thread_Control       *the_thread
);

typedef Thread_Control *( *Thread_queue_First_operation )(
  Thread_queue_Control *the_thread_queue
);

typedef struct {
  Thread_queue_Priority_change_operation priority_change;

  Thread_queue_Initialize_operation initialize;

  Thread_queue_Enqueue_operation enqueue;

  Thread_queue_Extract_operation extract;

  Thread_queue_First_operation first;
} Thread_queue_Operations;

typedef enum {
  THREAD_QUEUE_DISCIPLINE_FIFO,     /* FIFO queue discipline */
  THREAD_QUEUE_DISCIPLINE_PRIORITY  /* PRIORITY queue discipline */
}   Thread_queue_Disciplines;

struct Thread_queue_Control {
  union {
    Chain_Control Fifo;
    RBTree_Control Priority;
  } Queues;

  const Thread_queue_Operations *operations;

  ISR_LOCK_MEMBER( Lock )
};

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */