/**
 * @file rtems/itron/task.h
 */

/*
 *  COPYRIGHT (c) 1989-2008.
 *  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.com/license/LICENSE.
 *
 *  $Id$
 */

#ifndef _RTEMS_ITRON_TASK_H
#define _RTEMS_ITRON_TASK_H

#ifdef __cplusplus
extern "C" {
#endif

#include <rtems/itron/object.h>
#include <rtems/itron/config.h>
#include <rtems/score/thread.h>

/*
 *  This macro evaluates to TRUE if there should be a "context error."
 *  This is defined as a blocking directive being issed from
 *  task-independent portions or a task in dispatch disabled state.
 *
 *  NOTE: Dispatching is disabled in interrupts so this should cover
 *        both cases.
 */

#define _ITRON_Is_in_non_task_state() \
  (_Thread_Dispatch_disable_level != 0)

/*
 *  This is the API specific information required by each thread for
 *  the ITRON API to function correctly.
 */


#if 0
typedef struct {
  uint32_t                  unused;  /* no use for the API extension */
                                     /*   structure for ITRON identified yet */
}  ITRON_API_Control;
#endif

/*
 *  The following defines the information control block used to
 *  manage this class of objects.
 */

ITRON_EXTERN Objects_Information _ITRON_Task_Information;

/**
 *  When the user configures a set of ITRON API initialization tasks,
 *  This variable will point to the method used to initialize them.
 *
 *  @note It is instantiated and initialized by confdefs.h based upon
 *        application requirements.
 */
extern void (*_ITRON_Initialize_user_tasks_p)(void);

/*
 *  _ITRON_Task_Manager_initialization
 *
 *  This routine initializes the ITRON Task Manager.
 */

void _ITRON_Task_Manager_initialization(void);

/*
 * Return a status code and enable dispatching
 */

#define _ITRON_return_errorno( _errno )                \
do {                                                   \
  _Thread_Enable_dispatch();                           \
  return _errno;                                       \
} while (0);


#ifndef __RTEMS_APPLICATION__
#include <rtems/itron/task.inl>
#endif

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */